Fix indentation for ktlint

Fix preferences import vulnerability

.github/DISCUSSION_TEMPLATE/questions.yml

@@ -1,6 +1,3 @@
-name: Question
-description: Ask about anything NewPipe-related
-labels: [question]
 body:
   - type: markdown
     attributes:

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -14,7 +14,7 @@ body:
     attributes:
       label: "Checklist"
       options:
-        - label: "I am able to reproduce the bug with the [latest version](https://github.com/TeamNewPipe/NewPipe/releases/latest)."
+        - label: "I am able to reproduce the bug with the latest version given here: [CLICK THIS LINK](https://github.com/TeamNewPipe/NewPipe/releases/latest)."
           required: true
         - label: "I made sure that there are *no existing issues* - [open](https://github.com/TeamNewPipe/NewPipe/issues) or [closed](https://github.com/TeamNewPipe/NewPipe/issues?q=is%3Aissue+is%3Aclosed) - which I could contribute my information to."
           required: true

.github/changed-lines-count-labeler.yml

@@ -0,0 +1,17 @@
+# Add 'size/small' label to any changes with less than 50 lines
+size/small:
+  max: 49
+
+# Add 'size/medium' label to any changes between 50 and 249 lines
+size/medium:
+  min: 50
+  max: 249
+
+# Add 'size/large' label to any changes between 250 and 749 lines
+size/large:
+  min: 250
+  max: 749
+
+# Add 'size/giant' label to any changes for more than 749 lines
+size/giant:
+  min: 750

.github/workflows/ci.yml

@@ -36,8 +36,8 @@ jobs:
       contents: read
 
     steps:
-      - uses: actions/checkout@v3
-      - uses: gradle/wrapper-validation-action@v1
+      - uses: actions/checkout@v4
+      - uses: gradle/wrapper-validation-action@v2
 
       - name: create and checkout branch
         # push events already checked out the branch
@@ -47,7 +47,7 @@ jobs:
         run: git checkout -B "$BRANCH"
 
       - name: set up JDK 17
-        uses: actions/setup-java@v3
+        uses: actions/setup-java@v4
         with:
           java-version: 17
           distribution: "temurin"
@@ -57,7 +57,7 @@ jobs:
         run: ./gradlew assembleDebug lintDebug testDebugUnitTest --stacktrace -DskipFormatKtlint
 
       - name: Upload APK
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: app
           path: app/build/outputs/apk/debug/*.apk
@@ -80,10 +80,10 @@ jobs:
       contents: read
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: set up JDK 17
-        uses: actions/setup-java@v3
+        uses: actions/setup-java@v4
         with:
           java-version: 17
           distribution: "temurin"
@@ -98,7 +98,7 @@ jobs:
           script: ./gradlew connectedCheck --stacktrace
 
       - name: Upload test report when tests fail # because the printed out stacktrace (console) is too short, see also #7553
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         if: failure()
         with:
           name: android-test-report-api${{ matrix.api-level }}
@@ -111,19 +111,19 @@ jobs:
       contents: read
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0  # Shallow clones should be disabled for a better relevancy of analysis
 
       - name: Set up JDK 17
-        uses: actions/setup-java@v3
+        uses: actions/setup-java@v4
         with:
           java-version: 17
           distribution: "temurin"
           cache: 'gradle'
 
       - name: Cache SonarCloud packages
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ~/.sonar/cache
           key: ${{ runner.os }}-sonar

.github/workflows/image-minimizer.js

@@ -17,6 +17,8 @@ module.exports = async ({github, context}) => {
         initialBody = context.payload.comment.body;
     } else if (context.eventName == 'issues') {
         initialBody = context.payload.issue.body;
+    } else if (context.eventName == 'pull_request') {
+        initialBody = context.payload.pull_request.body;
     } else {
         console.log('Aborting: No body found');
         return;
@@ -74,9 +76,17 @@ module.exports = async ({github, context}) => {
             repo: context.repo.repo,
             body: newBody
         });
+    } else if (context.eventName == 'pull_request') {
+        console.log('Updating pull request', context.payload.pull_request.number);
+        await github.rest.pulls.update({
+            pull_number: context.payload.pull_request.number,
+            owner: context.repo.owner,
+            repo: context.repo.repo,
+            body: newBody
+        });
     }
 
-    // Asnyc replace function from https://stackoverflow.com/a/48032528
+    // Async replace function from https://stackoverflow.com/a/48032528
     async function replaceAsync(str, regex, asyncFn) {
         const promises = [];
         str.replace(regex, (match, ...args) => {
@@ -128,7 +138,7 @@ module.exports = async ({github, context}) => {
             if (shouldModify) {
                 wasMatchModified = true;
                 console.log(`Modifying match '${match}'`);
-                return `<img alt="${g1}" src="${g2}" width=${Math.min(600, (IMG_MAX_HEIGHT_PX * probeAspectRatio).toFixed(0))} />`;
+                return `<img alt="${g1}" src="${g2}" width=${Math.min(600, Math.floor(IMG_MAX_HEIGHT_PX * probeAspectRatio))} />`;
             }
 
             console.log(`Match '${match}' is ok/will not be modified`);

.github/workflows/image-minimizer.yml

@@ -5,6 +5,8 @@ on:
     types: [created, edited]
   issues:
     types: [opened, edited]
+  pull_request:
+    types: [opened, edited]
 
 permissions:
   issues: write
@@ -15,9 +17,9 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
-      - uses: actions/setup-node@v3
+      - uses: actions/setup-node@v4
         with:
           node-version: 16
 
@@ -25,7 +27,7 @@ jobs:
         run: npm i probe-image-size@7.2.3 --ignore-scripts
 
       - name: Minimize simple images
-        uses: actions/github-script@v6
+        uses: actions/github-script@v7
         timeout-minutes: 3
         with:
           script: |

.github/workflows/pr-labeler.yml

@@ -0,0 +1,18 @@
+name: "PR size labeler"
+on: [pull_request_target]
+permissions:
+  contents: read
+  pull-requests: write
+
+jobs:
+  changed-lines-count-labeler:
+    runs-on: ubuntu-latest
+    name: Automatically labelling pull requests based on the changed lines count
+    permissions:
+      pull-requests: write
+    steps:
+    - name: Set a label
+      uses: TeamNewPipe/changed-lines-count-labeler@main
+      with:
+        repo-token: ${{ secrets.GITHUB_TOKEN }}
+        configuration-path: .github/changed-lines-count-labeler.yml

README.md

@@ -13,18 +13,19 @@
 <a href="https://github.com/TeamNewPipe/NewPipe/actions" alt="Build Status"><img src="https://github.com/TeamNewPipe/NewPipe/workflows/CI/badge.svg?branch=dev&event=push"></a>
 <a href="https://hosted.weblate.org/engage/newpipe/" alt="Translation Status"><img src="https://hosted.weblate.org/widgets/newpipe/-/svg-badge.svg"></a>
 <a href="https://web.libera.chat/#newpipe" alt="IRC channel: #newpipe"><img src="https://img.shields.io/badge/IRC%20chat-%23newpipe-brightgreen.svg"></a>
-<a href="https://www.bountysource.com/teams/newpipe" alt="Bountysource bounties"><img src="https://img.shields.io/bountysource/team/newpipe/activity.svg?colorB=cd201f"></a>
+<a href="https://matrix.to/#/#newpipe:matrix.newpipe-ev.de" alt="Matrix channel: #newpipe"><img src="https://img.shields.io/badge/Matrix%20chat-%23newpipe-blue"></a>
 </p>
 <hr>
 <p align="center"><a href="#screenshots">Screenshots</a> &bull; <a href="#supported-services">Supported Services</a> &bull; <a href="#description">Description</a> &bull; <a href="#features">Features</a> &bull; <a href="#installation-and-updates">Installation and updates</a> &bull; <a href="#contribution">Contribution</a> &bull; <a href="#donate">Donate</a> &bull; <a href="#license">License</a></p>
 <p align="center"><a href="https://newpipe.net">Website</a> &bull; <a href="https://newpipe.net/blog/">Blog</a> &bull; <a href="https://newpipe.net/FAQ/">FAQ</a> &bull; <a href="https://newpipe.net/press/">Press</a></p>
 <hr>
 
-*Read this in other languages: [English](README.md), [Español](doc/README.es.md), [हिन्दी](doc/README.hi.md), [한국어](doc/README.ko.md), [Soomaali](doc/README.so.md), [Português Brasil](doc/README.pt_BR.md), [Polski](doc/README.pl.md), [日本語](doc/README.ja.md), [Română](doc/README.ro.md), [Türkçe](doc/README.tr.md), [正體中文](doc/README.zh_TW.md).*
+*Read this document in other languages: [Deutsch](doc/README.de.md), [English](README.md), [Español](doc/README.es.md), [Français](doc/README.fr.md), [हिन्दी](doc/README.hi.md), [Italiano](doc/README.it.md), [한국어](doc/README.ko.md), [Português Brasil](doc/README.pt_BR.md), [Polski](doc/README.pl.md), [ਪੰਜਾਬੀ ](doc/README.pa.md), [日本語](doc/README.ja.md), [Română](doc/README.ro.md), [Soomaali](doc/README.so.md), [Türkçe](doc/README.tr.md), [正體中文](doc/README.zh_TW.md), [অসমীয়া](doc/README.asm.md), [Српски](doc/README.sr.md)*
 
-<b>WARNING: THIS APP IS IN BETA, SO YOU MAY ENCOUNTER BUGS. IF YOU DO, OPEN AN ISSUE IN OUR GITHUB REPOSITORY BY FILLING OUT THE ISSUE TEMPLATE.</b>
-
-<b>PUTTING NEWPIPE, OR ANY FORK OF IT, INTO THE GOOGLE PLAY STORE VIOLATES THEIR TERMS AND CONDITIONS.</b>
+> [!warning]
+> <b>THIS APP IS IN BETA, SO YOU MAY ENCOUNTER BUGS. IF YOU DO, OPEN AN ISSUE IN OUR GITHUB REPOSITORY BY FILLING OUT THE ISSUE TEMPLATE.</b>
+> 
+> <b>PUTTING NEWPIPE, OR ANY FORK OF IT, INTO THE GOOGLE PLAY STORE VIOLATES THEIR TERMS AND CONDITIONS.</b>
 
 ## Screenshots
 
@@ -126,16 +127,6 @@ If you like NewPipe, you're welcome to send a donation. We prefer Liberapay, as
     <td><a href="https://liberapay.com/TeamNewPipe/"><img src="assets/liberapay_qr_code.png" alt="Visit NewPipe at liberapay.com" width="100px"></a></td>
     <td><a href="https://liberapay.com/TeamNewPipe/donate"><img src="assets/liberapay_donate_button.svg" alt="Donate via Liberapay" height="35px"></a></td>
   </tr>
-  <tr>
-    <td><img src="https://bitcoin.org/img/icons/logotop.svg" alt="Bitcoin"></td>
-    <td><img src="assets/bitcoin_qr_code.png" alt="Bitcoin QR code" width="100px"></td>
-    <td><samp>16A9J59ahMRqkLSZjhYj33n9j3fMztFxnh</samp></td>
-  </tr>
-  <tr>
-    <td><a href="https://www.bountysource.com/teams/newpipe"><img src="https://upload.wikimedia.org/wikipedia/commons/thumb/2/22/Bountysource.png/320px-Bountysource.png" alt="Bountysource" width="190px"></a></td>
-    <td><a href="https://www.bountysource.com/teams/newpipe"><img src="assets/bountysource_qr_code.png" alt="Visit NewPipe at bountysource.com" width="100px"></a></td>
-    <td><a href="https://www.bountysource.com/teams/newpipe/issues"><img src="https://img.shields.io/bountysource/team/newpipe/activity.svg?colorB=cd201f" height="30px" alt="Check out how many bounties you can earn."></a></td>
-  </tr>
 </table>
 
 ## Privacy Policy

app/build.gradle

@@ -12,7 +12,7 @@ plugins {
 }
 
 android {
-    compileSdk 33
+    compileSdk 34
     namespace 'org.schabi.newpipe'
 
     defaultConfig {
@@ -20,8 +20,8 @@ android {
         resValue "string", "app_name", "NewPipe"
         minSdk 21
         targetSdk 33
-        versionCode 993
-        versionName "0.25.1"
+        versionCode 997
+        versionName "0.27.0"
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
 
@@ -50,9 +50,6 @@ android {
             }
         }
 
-        // Keep the release build type at the end of the list to override 'archivesBaseName' of
-        // debug build. This seems to be a Gradle bug, therefore
-        // TODO: update Gradle version
         release {
             if (System.properties.containsKey('packageSuffix')) {
                 applicationIdSuffix System.getProperty('packageSuffix')
@@ -101,7 +98,9 @@ android {
         resources {
             // remove two files which belong to jsoup
             // no idea how they ended up in the META-INF dir...
-            excludes += ['META-INF/README.md', 'META-INF/CHANGES']
+            excludes += ['META-INF/README.md', 'META-INF/CHANGES',
+                         // 'COPYRIGHT' belongs to RxJava...
+                         'META-INF/COPYRIGHT']
         }
     }
 }
@@ -109,19 +108,18 @@ android {
 ext {
     checkstyleVersion = '10.12.1'
 
-    androidxLifecycleVersion = '2.5.1'
-    androidxRoomVersion = '2.4.3'
-    androidxWorkVersion = '2.7.1'
+    androidxLifecycleVersion = '2.6.2'
+    androidxRoomVersion = '2.6.1'
+    androidxWorkVersion = '2.8.1'
 
     icepickVersion = '3.2.0'
     exoPlayerVersion = '2.18.7'
-    googleAutoServiceVersion = '1.0.1'
+    googleAutoServiceVersion = '1.1.1'
     groupieVersion = '2.10.1'
     markwonVersion = '4.6.2'
 
-    leakCanaryVersion = '2.9.1'
+    leakCanaryVersion = '2.12'
     stethoVersion = '1.6.0'
-    mockitoVersion = '4.0.0'
 }
 
 configurations {
@@ -136,7 +134,7 @@ checkstyle {
     toolVersion = checkstyleVersion
 }
 
-task runCheckstyle(type: Checkstyle) {
+tasks.register('runCheckstyle', Checkstyle) {
     source 'src'
     include '**/*.java'
     exclude '**/gen/**'
@@ -157,7 +155,7 @@ task runCheckstyle(type: Checkstyle) {
 def outputDir = "${project.buildDir}/reports/ktlint/"
 def inputFiles = project.fileTree(dir: "src", include: "**/*.kt")
 
-task runKtlint(type: JavaExec) {
+tasks.register('runKtlint', JavaExec) {
     inputs.files(inputFiles)
     outputs.dir(outputDir)
     getMainClass().set("com.pinterest.ktlint.Main")
@@ -166,7 +164,7 @@ task runKtlint(type: JavaExec) {
     jvmArgs("--add-opens", "java.base/java.lang=ALL-UNNAMED")
 }
 
-task formatKtlint(type: JavaExec) {
+tasks.register('formatKtlint', JavaExec) {
     inputs.files(inputFiles)
     outputs.dir(outputDir)
     getMainClass().set("com.pinterest.ktlint.Main")
@@ -192,7 +190,7 @@ sonar {
 
 dependencies {
 /** Desugaring **/
-    coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:2.0.3'
+    coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs_nio:2.0.4'
 
 /** NewPipe libraries **/
     // You can use a local version by uncommenting a few lines in settings.gradle
@@ -200,7 +198,7 @@ dependencies {
     // name and the commit hash with the commit hash of the (pushed) commit you want to test
     // This works thanks to JitPack: https://jitpack.io/
     implementation 'com.github.TeamNewPipe:nanojson:1d9e1aea9049fc9f85e68b43ba39fe7be1c1f751'
-    implementation 'com.github.TeamNewPipe:NewPipeExtractor:8495ad619e'
+    implementation 'com.github.TeamNewPipe:NewPipeExtractor:v0.24.0'
     implementation 'com.github.TeamNewPipe:NoNonsense-FilePicker:5.0.0'
 
 /** Checkstyle **/
@@ -208,31 +206,31 @@ dependencies {
     ktlint 'com.pinterest:ktlint:0.45.2'
 
 /** Kotlin **/
-    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:${kotlin_version}"
+    implementation "org.jetbrains.kotlin:kotlin-stdlib:${kotlin_version}"
 
 /** AndroidX **/
-    implementation 'androidx.appcompat:appcompat:1.5.1'
+    implementation 'androidx.appcompat:appcompat:1.6.1'
     implementation 'androidx.cardview:cardview:1.0.0'
     implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
-    implementation 'androidx.core:core-ktx:1.10.0'
+    implementation 'androidx.core:core-ktx:1.12.0'
     implementation 'androidx.documentfile:documentfile:1.0.1'
-    implementation 'androidx.fragment:fragment-ktx:1.4.1'
+    implementation 'androidx.fragment:fragment-ktx:1.6.2'
     implementation "androidx.lifecycle:lifecycle-livedata-ktx:${androidxLifecycleVersion}"
     implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:${androidxLifecycleVersion}"
     implementation 'androidx.localbroadcastmanager:localbroadcastmanager:1.1.0'
-    implementation 'androidx.media:media:1.6.0'
-    implementation 'androidx.preference:preference:1.2.0'
-    implementation 'androidx.recyclerview:recyclerview:1.2.1'
+    implementation 'androidx.media:media:1.7.0'
+    implementation 'androidx.preference:preference:1.2.1'
+    implementation 'androidx.recyclerview:recyclerview:1.3.2'
     implementation "androidx.room:room-runtime:${androidxRoomVersion}"
     implementation "androidx.room:room-rxjava3:${androidxRoomVersion}"
     kapt "androidx.room:room-compiler:${androidxRoomVersion}"
     implementation 'androidx.swiperefreshlayout:swiperefreshlayout:1.1.0'
     // Newer version specified to prevent accessibility regressions with RecyclerView, see:
     // https://developer.android.com/jetpack/androidx/releases/viewpager2#1.1.0-alpha01
-    implementation 'androidx.viewpager2:viewpager2:1.1.0-beta01'
+    implementation 'androidx.viewpager2:viewpager2:1.1.0-beta02'
     implementation "androidx.work:work-runtime-ktx:${androidxWorkVersion}"
     implementation "androidx.work:work-rxjava3:${androidxWorkVersion}"
-    implementation 'com.google.android.material:material:1.6.1'
+    implementation 'com.google.android.material:material:1.11.0'
 
 /** Third-party libraries **/
     // Instance state boilerplate elimination
@@ -240,10 +238,10 @@ dependencies {
     kapt "frankiesardo:icepick-processor:${icepickVersion}"
 
     // HTML parser
-    implementation "org.jsoup:jsoup:1.16.1"
+    implementation "org.jsoup:jsoup:1.17.2"
 
     // HTTP client
-    implementation "com.squareup.okhttp3:okhttp:4.11.0"
+    implementation "com.squareup.okhttp3:okhttp:4.12.0"
 
     // Media player
     implementation "com.google.android.exoplayer:exoplayer-core:${exoPlayerVersion}"
@@ -272,38 +270,37 @@ dependencies {
     implementation "io.noties.markwon:linkify:${markwonVersion}"
 
     // Crash reporting
-    implementation "ch.acra:acra-core:5.10.1"
+    implementation "ch.acra:acra-core:5.11.3"
 
     // Properly restarting
     implementation 'com.jakewharton:process-phoenix:2.1.2'
 
     // Reactive extensions for Java VM
-    implementation "io.reactivex.rxjava3:rxjava:3.1.6"
+    implementation "io.reactivex.rxjava3:rxjava:3.1.8"
     implementation "io.reactivex.rxjava3:rxandroid:3.0.2"
     // RxJava binding APIs for Android UI widgets
     implementation "com.jakewharton.rxbinding4:rxbinding:4.0.0"
 
     // Date and time formatting
-    implementation "org.ocpsoft.prettytime:prettytime:5.0.6.Final"
+    implementation "org.ocpsoft.prettytime:prettytime:5.0.7.Final"
 
 /** Debugging **/
     // Memory leak detection
-    implementation "com.squareup.leakcanary:leakcanary-object-watcher-android:${leakCanaryVersion}"
-    implementation "com.squareup.leakcanary:plumber-android:${leakCanaryVersion}"
-    debugImplementation "com.squareup.leakcanary:leakcanary-android:${leakCanaryVersion}"
+    debugImplementation "com.squareup.leakcanary:leakcanary-object-watcher-android:${leakCanaryVersion}"
+    debugImplementation "com.squareup.leakcanary:plumber-android:${leakCanaryVersion}"
+    debugImplementation "com.squareup.leakcanary:leakcanary-android-core:${leakCanaryVersion}"
     // Debug bridge for Android
     debugImplementation "com.facebook.stetho:stetho:${stethoVersion}"
     debugImplementation "com.facebook.stetho:stetho-okhttp3:${stethoVersion}"
 
 /** Testing **/
     testImplementation 'junit:junit:4.13.2'
-    testImplementation "org.mockito:mockito-core:${mockitoVersion}"
-    testImplementation "org.mockito:mockito-inline:${mockitoVersion}"
+    testImplementation 'org.mockito:mockito-core:5.6.0'
 
     androidTestImplementation "androidx.test.ext:junit:1.1.5"
     androidTestImplementation "androidx.test:runner:1.5.2"
     androidTestImplementation "androidx.room:room-testing:${androidxRoomVersion}"
-    androidTestImplementation "org.assertj:assertj-core:3.23.1"
+    androidTestImplementation "org.assertj:assertj-core:3.24.2"
 }
 
 static String getGitWorkingBranch() {

app/schemas/org.schabi.newpipe.database.AppDatabase/8.json

@@ -0,0 +1,737 @@
+{
+  "formatVersion": 1,
+  "database": {
+    "version": 8,
+    "identityHash": "012fc8e7ad3333f1597347f34e76a513",
+    "entities": [
+      {
+        "tableName": "subscriptions",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`uid` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, `service_id` INTEGER NOT NULL, `url` TEXT, `name` TEXT, `avatar_url` TEXT, `subscriber_count` INTEGER, `description` TEXT, `notification_mode` INTEGER NOT NULL)",
+        "fields": [
+          {
+            "fieldPath": "uid",
+            "columnName": "uid",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "serviceId",
+            "columnName": "service_id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "url",
+            "columnName": "url",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "name",
+            "columnName": "name",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "avatarUrl",
+            "columnName": "avatar_url",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "subscriberCount",
+            "columnName": "subscriber_count",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "description",
+            "columnName": "description",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "notificationMode",
+            "columnName": "notification_mode",
+            "affinity": "INTEGER",
+            "notNull": true
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": true,
+          "columnNames": [
+            "uid"
+          ]
+        },
+        "indices": [
+          {
+            "name": "index_subscriptions_service_id_url",
+            "unique": true,
+            "columnNames": [
+              "service_id",
+              "url"
+            ],
+            "orders": [],
+            "createSql": "CREATE UNIQUE INDEX IF NOT EXISTS `index_subscriptions_service_id_url` ON `${TABLE_NAME}` (`service_id`, `url`)"
+          }
+        ],
+        "foreignKeys": []
+      },
+      {
+        "tableName": "search_history",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`creation_date` INTEGER, `service_id` INTEGER NOT NULL, `search` TEXT, `id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL)",
+        "fields": [
+          {
+            "fieldPath": "creationDate",
+            "columnName": "creation_date",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "serviceId",
+            "columnName": "service_id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "search",
+            "columnName": "search",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "id",
+            "columnName": "id",
+            "affinity": "INTEGER",
+            "notNull": true
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": true,
+          "columnNames": [
+            "id"
+          ]
+        },
+        "indices": [
+          {
+            "name": "index_search_history_search",
+            "unique": false,
+            "columnNames": [
+              "search"
+            ],
+            "orders": [],
+            "createSql": "CREATE INDEX IF NOT EXISTS `index_search_history_search` ON `${TABLE_NAME}` (`search`)"
+          }
+        ],
+        "foreignKeys": []
+      },
+      {
+        "tableName": "streams",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`uid` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, `service_id` INTEGER NOT NULL, `url` TEXT NOT NULL, `title` TEXT NOT NULL, `stream_type` TEXT NOT NULL, `duration` INTEGER NOT NULL, `uploader` TEXT NOT NULL, `uploader_url` TEXT, `thumbnail_url` TEXT, `view_count` INTEGER, `textual_upload_date` TEXT, `upload_date` INTEGER, `is_upload_date_approximation` INTEGER)",
+        "fields": [
+          {
+            "fieldPath": "uid",
+            "columnName": "uid",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "serviceId",
+            "columnName": "service_id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "url",
+            "columnName": "url",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "title",
+            "columnName": "title",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "streamType",
+            "columnName": "stream_type",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "duration",
+            "columnName": "duration",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "uploader",
+            "columnName": "uploader",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "uploaderUrl",
+            "columnName": "uploader_url",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "thumbnailUrl",
+            "columnName": "thumbnail_url",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "viewCount",
+            "columnName": "view_count",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "textualUploadDate",
+            "columnName": "textual_upload_date",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "uploadDate",
+            "columnName": "upload_date",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "isUploadDateApproximation",
+            "columnName": "is_upload_date_approximation",
+            "affinity": "INTEGER",
+            "notNull": false
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": true,
+          "columnNames": [
+            "uid"
+          ]
+        },
+        "indices": [
+          {
+            "name": "index_streams_service_id_url",
+            "unique": true,
+            "columnNames": [
+              "service_id",
+              "url"
+            ],
+            "orders": [],
+            "createSql": "CREATE UNIQUE INDEX IF NOT EXISTS `index_streams_service_id_url` ON `${TABLE_NAME}` (`service_id`, `url`)"
+          }
+        ],
+        "foreignKeys": []
+      },
+      {
+        "tableName": "stream_history",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`stream_id` INTEGER NOT NULL, `access_date` INTEGER NOT NULL, `repeat_count` INTEGER NOT NULL, PRIMARY KEY(`stream_id`, `access_date`), FOREIGN KEY(`stream_id`) REFERENCES `streams`(`uid`) ON UPDATE CASCADE ON DELETE CASCADE )",
+        "fields": [
+          {
+            "fieldPath": "streamUid",
+            "columnName": "stream_id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "accessDate",
+            "columnName": "access_date",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "repeatCount",
+            "columnName": "repeat_count",
+            "affinity": "INTEGER",
+            "notNull": true
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": false,
+          "columnNames": [
+            "stream_id",
+            "access_date"
+          ]
+        },
+        "indices": [
+          {
+            "name": "index_stream_history_stream_id",
+            "unique": false,
+            "columnNames": [
+              "stream_id"
+            ],
+            "orders": [],
+            "createSql": "CREATE INDEX IF NOT EXISTS `index_stream_history_stream_id` ON `${TABLE_NAME}` (`stream_id`)"
+          }
+        ],
+        "foreignKeys": [
+          {
+            "table": "streams",
+            "onDelete": "CASCADE",
+            "onUpdate": "CASCADE",
+            "columns": [
+              "stream_id"
+            ],
+            "referencedColumns": [
+              "uid"
+            ]
+          }
+        ]
+      },
+      {
+        "tableName": "stream_state",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`stream_id` INTEGER NOT NULL, `progress_time` INTEGER NOT NULL, PRIMARY KEY(`stream_id`), FOREIGN KEY(`stream_id`) REFERENCES `streams`(`uid`) ON UPDATE CASCADE ON DELETE CASCADE )",
+        "fields": [
+          {
+            "fieldPath": "streamUid",
+            "columnName": "stream_id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "progressMillis",
+            "columnName": "progress_time",
+            "affinity": "INTEGER",
+            "notNull": true
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": false,
+          "columnNames": [
+            "stream_id"
+          ]
+        },
+        "indices": [],
+        "foreignKeys": [
+          {
+            "table": "streams",
+            "onDelete": "CASCADE",
+            "onUpdate": "CASCADE",
+            "columns": [
+              "stream_id"
+            ],
+            "referencedColumns": [
+              "uid"
+            ]
+          }
+        ]
+      },
+      {
+        "tableName": "playlists",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`uid` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, `name` TEXT, `is_thumbnail_permanent` INTEGER NOT NULL, `thumbnail_stream_id` INTEGER NOT NULL)",
+        "fields": [
+          {
+            "fieldPath": "uid",
+            "columnName": "uid",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "name",
+            "columnName": "name",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "isThumbnailPermanent",
+            "columnName": "is_thumbnail_permanent",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "thumbnailStreamId",
+            "columnName": "thumbnail_stream_id",
+            "affinity": "INTEGER",
+            "notNull": true
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": true,
+          "columnNames": [
+            "uid"
+          ]
+        },
+        "indices": [
+          {
+            "name": "index_playlists_name",
+            "unique": false,
+            "columnNames": [
+              "name"
+            ],
+            "orders": [],
+            "createSql": "CREATE INDEX IF NOT EXISTS `index_playlists_name` ON `${TABLE_NAME}` (`name`)"
+          }
+        ],
+        "foreignKeys": []
+      },
+      {
+        "tableName": "playlist_stream_join",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`playlist_id` INTEGER NOT NULL, `stream_id` INTEGER NOT NULL, `join_index` INTEGER NOT NULL, PRIMARY KEY(`playlist_id`, `join_index`), FOREIGN KEY(`playlist_id`) REFERENCES `playlists`(`uid`) ON UPDATE CASCADE ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED, FOREIGN KEY(`stream_id`) REFERENCES `streams`(`uid`) ON UPDATE CASCADE ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED)",
+        "fields": [
+          {
+            "fieldPath": "playlistUid",
+            "columnName": "playlist_id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "streamUid",
+            "columnName": "stream_id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "index",
+            "columnName": "join_index",
+            "affinity": "INTEGER",
+            "notNull": true
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": false,
+          "columnNames": [
+            "playlist_id",
+            "join_index"
+          ]
+        },
+        "indices": [
+          {
+            "name": "index_playlist_stream_join_playlist_id_join_index",
+            "unique": true,
+            "columnNames": [
+              "playlist_id",
+              "join_index"
+            ],
+            "orders": [],
+            "createSql": "CREATE UNIQUE INDEX IF NOT EXISTS `index_playlist_stream_join_playlist_id_join_index` ON `${TABLE_NAME}` (`playlist_id`, `join_index`)"
+          },
+          {
+            "name": "index_playlist_stream_join_stream_id",
+            "unique": false,
+            "columnNames": [
+              "stream_id"
+            ],
+            "orders": [],
+            "createSql": "CREATE INDEX IF NOT EXISTS `index_playlist_stream_join_stream_id` ON `${TABLE_NAME}` (`stream_id`)"
+          }
+        ],
+        "foreignKeys": [
+          {
+            "table": "playlists",
+            "onDelete": "CASCADE",
+            "onUpdate": "CASCADE",
+            "columns": [
+              "playlist_id"
+            ],
+            "referencedColumns": [
+              "uid"
+            ]
+          },
+          {
+            "table": "streams",
+            "onDelete": "CASCADE",
+            "onUpdate": "CASCADE",
+            "columns": [
+              "stream_id"
+            ],
+            "referencedColumns": [
+              "uid"
+            ]
+          }
+        ]
+      },
+      {
+        "tableName": "remote_playlists",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`uid` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, `service_id` INTEGER NOT NULL, `name` TEXT, `url` TEXT, `thumbnail_url` TEXT, `uploader` TEXT, `stream_count` INTEGER)",
+        "fields": [
+          {
+            "fieldPath": "uid",
+            "columnName": "uid",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "serviceId",
+            "columnName": "service_id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "name",
+            "columnName": "name",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "url",
+            "columnName": "url",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "thumbnailUrl",
+            "columnName": "thumbnail_url",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "uploader",
+            "columnName": "uploader",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "streamCount",
+            "columnName": "stream_count",
+            "affinity": "INTEGER",
+            "notNull": false
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": true,
+          "columnNames": [
+            "uid"
+          ]
+        },
+        "indices": [
+          {
+            "name": "index_remote_playlists_name",
+            "unique": false,
+            "columnNames": [
+              "name"
+            ],
+            "orders": [],
+            "createSql": "CREATE INDEX IF NOT EXISTS `index_remote_playlists_name` ON `${TABLE_NAME}` (`name`)"
+          },
+          {
+            "name": "index_remote_playlists_service_id_url",
+            "unique": true,
+            "columnNames": [
+              "service_id",
+              "url"
+            ],
+            "orders": [],
+            "createSql": "CREATE UNIQUE INDEX IF NOT EXISTS `index_remote_playlists_service_id_url` ON `${TABLE_NAME}` (`service_id`, `url`)"
+          }
+        ],
+        "foreignKeys": []
+      },
+      {
+        "tableName": "feed",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`stream_id` INTEGER NOT NULL, `subscription_id` INTEGER NOT NULL, PRIMARY KEY(`stream_id`, `subscription_id`), FOREIGN KEY(`stream_id`) REFERENCES `streams`(`uid`) ON UPDATE CASCADE ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED, FOREIGN KEY(`subscription_id`) REFERENCES `subscriptions`(`uid`) ON UPDATE CASCADE ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED)",
+        "fields": [
+          {
+            "fieldPath": "streamId",
+            "columnName": "stream_id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "subscriptionId",
+            "columnName": "subscription_id",
+            "affinity": "INTEGER",
+            "notNull": true
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": false,
+          "columnNames": [
+            "stream_id",
+            "subscription_id"
+          ]
+        },
+        "indices": [
+          {
+            "name": "index_feed_subscription_id",
+            "unique": false,
+            "columnNames": [
+              "subscription_id"
+            ],
+            "orders": [],
+            "createSql": "CREATE INDEX IF NOT EXISTS `index_feed_subscription_id` ON `${TABLE_NAME}` (`subscription_id`)"
+          }
+        ],
+        "foreignKeys": [
+          {
+            "table": "streams",
+            "onDelete": "CASCADE",
+            "onUpdate": "CASCADE",
+            "columns": [
+              "stream_id"
+            ],
+            "referencedColumns": [
+              "uid"
+            ]
+          },
+          {
+            "table": "subscriptions",
+            "onDelete": "CASCADE",
+            "onUpdate": "CASCADE",
+            "columns": [
+              "subscription_id"
+            ],
+            "referencedColumns": [
+              "uid"
+            ]
+          }
+        ]
+      },
+      {
+        "tableName": "feed_group",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`uid` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, `name` TEXT NOT NULL, `icon_id` INTEGER NOT NULL, `sort_order` INTEGER NOT NULL)",
+        "fields": [
+          {
+            "fieldPath": "uid",
+            "columnName": "uid",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "name",
+            "columnName": "name",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "icon",
+            "columnName": "icon_id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "sortOrder",
+            "columnName": "sort_order",
+            "affinity": "INTEGER",
+            "notNull": true
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": true,
+          "columnNames": [
+            "uid"
+          ]
+        },
+        "indices": [
+          {
+            "name": "index_feed_group_sort_order",
+            "unique": false,
+            "columnNames": [
+              "sort_order"
+            ],
+            "orders": [],
+            "createSql": "CREATE INDEX IF NOT EXISTS `index_feed_group_sort_order` ON `${TABLE_NAME}` (`sort_order`)"
+          }
+        ],
+        "foreignKeys": []
+      },
+      {
+        "tableName": "feed_group_subscription_join",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`group_id` INTEGER NOT NULL, `subscription_id` INTEGER NOT NULL, PRIMARY KEY(`group_id`, `subscription_id`), FOREIGN KEY(`group_id`) REFERENCES `feed_group`(`uid`) ON UPDATE CASCADE ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED, FOREIGN KEY(`subscription_id`) REFERENCES `subscriptions`(`uid`) ON UPDATE CASCADE ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED)",
+        "fields": [
+          {
+            "fieldPath": "feedGroupId",
+            "columnName": "group_id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "subscriptionId",
+            "columnName": "subscription_id",
+            "affinity": "INTEGER",
+            "notNull": true
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": false,
+          "columnNames": [
+            "group_id",
+            "subscription_id"
+          ]
+        },
+        "indices": [
+          {
+            "name": "index_feed_group_subscription_join_subscription_id",
+            "unique": false,
+            "columnNames": [
+              "subscription_id"
+            ],
+            "orders": [],
+            "createSql": "CREATE INDEX IF NOT EXISTS `index_feed_group_subscription_join_subscription_id` ON `${TABLE_NAME}` (`subscription_id`)"
+          }
+        ],
+        "foreignKeys": [
+          {
+            "table": "feed_group",
+            "onDelete": "CASCADE",
+            "onUpdate": "CASCADE",
+            "columns": [
+              "group_id"
+            ],
+            "referencedColumns": [
+              "uid"
+            ]
+          },
+          {
+            "table": "subscriptions",
+            "onDelete": "CASCADE",
+            "onUpdate": "CASCADE",
+            "columns": [
+              "subscription_id"
+            ],
+            "referencedColumns": [
+              "uid"
+            ]
+          }
+        ]
+      },
+      {
+        "tableName": "feed_last_updated",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`subscription_id` INTEGER NOT NULL, `last_updated` INTEGER, PRIMARY KEY(`subscription_id`), FOREIGN KEY(`subscription_id`) REFERENCES `subscriptions`(`uid`) ON UPDATE CASCADE ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED)",
+        "fields": [
+          {
+            "fieldPath": "subscriptionId",
+            "columnName": "subscription_id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "lastUpdated",
+            "columnName": "last_updated",
+            "affinity": "INTEGER",
+            "notNull": false
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": false,
+          "columnNames": [
+            "subscription_id"
+          ]
+        },
+        "indices": [],
+        "foreignKeys": [
+          {
+            "table": "subscriptions",
+            "onDelete": "CASCADE",
+            "onUpdate": "CASCADE",
+            "columns": [
+              "subscription_id"
+            ],
+            "referencedColumns": [
+              "uid"
+            ]
+          }
+        ]
+      }
+    ],
+    "views": [],
+    "setupQueries": [
+      "CREATE TABLE IF NOT EXISTS room_master_table (id INTEGER PRIMARY KEY,identity_hash TEXT)",
+      "INSERT OR REPLACE INTO room_master_table (id,identity_hash) VALUES(42, '012fc8e7ad3333f1597347f34e76a513')"
+    ]
+  }
+}

app/schemas/org.schabi.newpipe.database.AppDatabase/9.json

@@ -0,0 +1,730 @@
+{
+  "formatVersion": 1,
+  "database": {
+    "version": 9,
+    "identityHash": "7591e8039faa74d8c0517dc867af9d3e",
+    "entities": [
+      {
+        "tableName": "subscriptions",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`uid` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, `service_id` INTEGER NOT NULL, `url` TEXT, `name` TEXT, `avatar_url` TEXT, `subscriber_count` INTEGER, `description` TEXT, `notification_mode` INTEGER NOT NULL)",
+        "fields": [
+          {
+            "fieldPath": "uid",
+            "columnName": "uid",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "serviceId",
+            "columnName": "service_id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "url",
+            "columnName": "url",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "name",
+            "columnName": "name",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "avatarUrl",
+            "columnName": "avatar_url",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "subscriberCount",
+            "columnName": "subscriber_count",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "description",
+            "columnName": "description",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "notificationMode",
+            "columnName": "notification_mode",
+            "affinity": "INTEGER",
+            "notNull": true
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": true,
+          "columnNames": [
+            "uid"
+          ]
+        },
+        "indices": [
+          {
+            "name": "index_subscriptions_service_id_url",
+            "unique": true,
+            "columnNames": [
+              "service_id",
+              "url"
+            ],
+            "orders": [],
+            "createSql": "CREATE UNIQUE INDEX IF NOT EXISTS `index_subscriptions_service_id_url` ON `${TABLE_NAME}` (`service_id`, `url`)"
+          }
+        ],
+        "foreignKeys": []
+      },
+      {
+        "tableName": "search_history",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`creation_date` INTEGER, `service_id` INTEGER NOT NULL, `search` TEXT, `id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL)",
+        "fields": [
+          {
+            "fieldPath": "creationDate",
+            "columnName": "creation_date",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "serviceId",
+            "columnName": "service_id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "search",
+            "columnName": "search",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "id",
+            "columnName": "id",
+            "affinity": "INTEGER",
+            "notNull": true
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": true,
+          "columnNames": [
+            "id"
+          ]
+        },
+        "indices": [
+          {
+            "name": "index_search_history_search",
+            "unique": false,
+            "columnNames": [
+              "search"
+            ],
+            "orders": [],
+            "createSql": "CREATE INDEX IF NOT EXISTS `index_search_history_search` ON `${TABLE_NAME}` (`search`)"
+          }
+        ],
+        "foreignKeys": []
+      },
+      {
+        "tableName": "streams",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`uid` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, `service_id` INTEGER NOT NULL, `url` TEXT NOT NULL, `title` TEXT NOT NULL, `stream_type` TEXT NOT NULL, `duration` INTEGER NOT NULL, `uploader` TEXT NOT NULL, `uploader_url` TEXT, `thumbnail_url` TEXT, `view_count` INTEGER, `textual_upload_date` TEXT, `upload_date` INTEGER, `is_upload_date_approximation` INTEGER)",
+        "fields": [
+          {
+            "fieldPath": "uid",
+            "columnName": "uid",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "serviceId",
+            "columnName": "service_id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "url",
+            "columnName": "url",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "title",
+            "columnName": "title",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "streamType",
+            "columnName": "stream_type",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "duration",
+            "columnName": "duration",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "uploader",
+            "columnName": "uploader",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "uploaderUrl",
+            "columnName": "uploader_url",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "thumbnailUrl",
+            "columnName": "thumbnail_url",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "viewCount",
+            "columnName": "view_count",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "textualUploadDate",
+            "columnName": "textual_upload_date",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "uploadDate",
+            "columnName": "upload_date",
+            "affinity": "INTEGER",
+            "notNull": false
+          },
+          {
+            "fieldPath": "isUploadDateApproximation",
+            "columnName": "is_upload_date_approximation",
+            "affinity": "INTEGER",
+            "notNull": false
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": true,
+          "columnNames": [
+            "uid"
+          ]
+        },
+        "indices": [
+          {
+            "name": "index_streams_service_id_url",
+            "unique": true,
+            "columnNames": [
+              "service_id",
+              "url"
+            ],
+            "orders": [],
+            "createSql": "CREATE UNIQUE INDEX IF NOT EXISTS `index_streams_service_id_url` ON `${TABLE_NAME}` (`service_id`, `url`)"
+          }
+        ],
+        "foreignKeys": []
+      },
+      {
+        "tableName": "stream_history",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`stream_id` INTEGER NOT NULL, `access_date` INTEGER NOT NULL, `repeat_count` INTEGER NOT NULL, PRIMARY KEY(`stream_id`, `access_date`), FOREIGN KEY(`stream_id`) REFERENCES `streams`(`uid`) ON UPDATE CASCADE ON DELETE CASCADE )",
+        "fields": [
+          {
+            "fieldPath": "streamUid",
+            "columnName": "stream_id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "accessDate",
+            "columnName": "access_date",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "repeatCount",
+            "columnName": "repeat_count",
+            "affinity": "INTEGER",
+            "notNull": true
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": false,
+          "columnNames": [
+            "stream_id",
+            "access_date"
+          ]
+        },
+        "indices": [
+          {
+            "name": "index_stream_history_stream_id",
+            "unique": false,
+            "columnNames": [
+              "stream_id"
+            ],
+            "orders": [],
+            "createSql": "CREATE INDEX IF NOT EXISTS `index_stream_history_stream_id` ON `${TABLE_NAME}` (`stream_id`)"
+          }
+        ],
+        "foreignKeys": [
+          {
+            "table": "streams",
+            "onDelete": "CASCADE",
+            "onUpdate": "CASCADE",
+            "columns": [
+              "stream_id"
+            ],
+            "referencedColumns": [
+              "uid"
+            ]
+          }
+        ]
+      },
+      {
+        "tableName": "stream_state",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`stream_id` INTEGER NOT NULL, `progress_time` INTEGER NOT NULL, PRIMARY KEY(`stream_id`), FOREIGN KEY(`stream_id`) REFERENCES `streams`(`uid`) ON UPDATE CASCADE ON DELETE CASCADE )",
+        "fields": [
+          {
+            "fieldPath": "streamUid",
+            "columnName": "stream_id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "progressMillis",
+            "columnName": "progress_time",
+            "affinity": "INTEGER",
+            "notNull": true
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": false,
+          "columnNames": [
+            "stream_id"
+          ]
+        },
+        "indices": [],
+        "foreignKeys": [
+          {
+            "table": "streams",
+            "onDelete": "CASCADE",
+            "onUpdate": "CASCADE",
+            "columns": [
+              "stream_id"
+            ],
+            "referencedColumns": [
+              "uid"
+            ]
+          }
+        ]
+      },
+      {
+        "tableName": "playlists",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`uid` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, `name` TEXT, `is_thumbnail_permanent` INTEGER NOT NULL, `thumbnail_stream_id` INTEGER NOT NULL, `display_index` INTEGER NOT NULL)",
+        "fields": [
+          {
+            "fieldPath": "uid",
+            "columnName": "uid",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "name",
+            "columnName": "name",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "isThumbnailPermanent",
+            "columnName": "is_thumbnail_permanent",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "thumbnailStreamId",
+            "columnName": "thumbnail_stream_id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "displayIndex",
+            "columnName": "display_index",
+            "affinity": "INTEGER",
+            "notNull": true
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": true,
+          "columnNames": [
+            "uid"
+          ]
+        },
+        "indices": [],
+        "foreignKeys": []
+      },
+      {
+        "tableName": "playlist_stream_join",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`playlist_id` INTEGER NOT NULL, `stream_id` INTEGER NOT NULL, `join_index` INTEGER NOT NULL, PRIMARY KEY(`playlist_id`, `join_index`), FOREIGN KEY(`playlist_id`) REFERENCES `playlists`(`uid`) ON UPDATE CASCADE ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED, FOREIGN KEY(`stream_id`) REFERENCES `streams`(`uid`) ON UPDATE CASCADE ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED)",
+        "fields": [
+          {
+            "fieldPath": "playlistUid",
+            "columnName": "playlist_id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "streamUid",
+            "columnName": "stream_id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "index",
+            "columnName": "join_index",
+            "affinity": "INTEGER",
+            "notNull": true
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": false,
+          "columnNames": [
+            "playlist_id",
+            "join_index"
+          ]
+        },
+        "indices": [
+          {
+            "name": "index_playlist_stream_join_playlist_id_join_index",
+            "unique": true,
+            "columnNames": [
+              "playlist_id",
+              "join_index"
+            ],
+            "orders": [],
+            "createSql": "CREATE UNIQUE INDEX IF NOT EXISTS `index_playlist_stream_join_playlist_id_join_index` ON `${TABLE_NAME}` (`playlist_id`, `join_index`)"
+          },
+          {
+            "name": "index_playlist_stream_join_stream_id",
+            "unique": false,
+            "columnNames": [
+              "stream_id"
+            ],
+            "orders": [],
+            "createSql": "CREATE INDEX IF NOT EXISTS `index_playlist_stream_join_stream_id` ON `${TABLE_NAME}` (`stream_id`)"
+          }
+        ],
+        "foreignKeys": [
+          {
+            "table": "playlists",
+            "onDelete": "CASCADE",
+            "onUpdate": "CASCADE",
+            "columns": [
+              "playlist_id"
+            ],
+            "referencedColumns": [
+              "uid"
+            ]
+          },
+          {
+            "table": "streams",
+            "onDelete": "CASCADE",
+            "onUpdate": "CASCADE",
+            "columns": [
+              "stream_id"
+            ],
+            "referencedColumns": [
+              "uid"
+            ]
+          }
+        ]
+      },
+      {
+        "tableName": "remote_playlists",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`uid` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, `service_id` INTEGER NOT NULL, `name` TEXT, `url` TEXT, `thumbnail_url` TEXT, `uploader` TEXT, `display_index` INTEGER NOT NULL, `stream_count` INTEGER)",
+        "fields": [
+          {
+            "fieldPath": "uid",
+            "columnName": "uid",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "serviceId",
+            "columnName": "service_id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "name",
+            "columnName": "name",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "url",
+            "columnName": "url",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "thumbnailUrl",
+            "columnName": "thumbnail_url",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "uploader",
+            "columnName": "uploader",
+            "affinity": "TEXT",
+            "notNull": false
+          },
+          {
+            "fieldPath": "displayIndex",
+            "columnName": "display_index",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "streamCount",
+            "columnName": "stream_count",
+            "affinity": "INTEGER",
+            "notNull": false
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": true,
+          "columnNames": [
+            "uid"
+          ]
+        },
+        "indices": [
+          {
+            "name": "index_remote_playlists_service_id_url",
+            "unique": true,
+            "columnNames": [
+              "service_id",
+              "url"
+            ],
+            "orders": [],
+            "createSql": "CREATE UNIQUE INDEX IF NOT EXISTS `index_remote_playlists_service_id_url` ON `${TABLE_NAME}` (`service_id`, `url`)"
+          }
+        ],
+        "foreignKeys": []
+      },
+      {
+        "tableName": "feed",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`stream_id` INTEGER NOT NULL, `subscription_id` INTEGER NOT NULL, PRIMARY KEY(`stream_id`, `subscription_id`), FOREIGN KEY(`stream_id`) REFERENCES `streams`(`uid`) ON UPDATE CASCADE ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED, FOREIGN KEY(`subscription_id`) REFERENCES `subscriptions`(`uid`) ON UPDATE CASCADE ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED)",
+        "fields": [
+          {
+            "fieldPath": "streamId",
+            "columnName": "stream_id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "subscriptionId",
+            "columnName": "subscription_id",
+            "affinity": "INTEGER",
+            "notNull": true
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": false,
+          "columnNames": [
+            "stream_id",
+            "subscription_id"
+          ]
+        },
+        "indices": [
+          {
+            "name": "index_feed_subscription_id",
+            "unique": false,
+            "columnNames": [
+              "subscription_id"
+            ],
+            "orders": [],
+            "createSql": "CREATE INDEX IF NOT EXISTS `index_feed_subscription_id` ON `${TABLE_NAME}` (`subscription_id`)"
+          }
+        ],
+        "foreignKeys": [
+          {
+            "table": "streams",
+            "onDelete": "CASCADE",
+            "onUpdate": "CASCADE",
+            "columns": [
+              "stream_id"
+            ],
+            "referencedColumns": [
+              "uid"
+            ]
+          },
+          {
+            "table": "subscriptions",
+            "onDelete": "CASCADE",
+            "onUpdate": "CASCADE",
+            "columns": [
+              "subscription_id"
+            ],
+            "referencedColumns": [
+              "uid"
+            ]
+          }
+        ]
+      },
+      {
+        "tableName": "feed_group",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`uid` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, `name` TEXT NOT NULL, `icon_id` INTEGER NOT NULL, `sort_order` INTEGER NOT NULL)",
+        "fields": [
+          {
+            "fieldPath": "uid",
+            "columnName": "uid",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "name",
+            "columnName": "name",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "icon",
+            "columnName": "icon_id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "sortOrder",
+            "columnName": "sort_order",
+            "affinity": "INTEGER",
+            "notNull": true
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": true,
+          "columnNames": [
+            "uid"
+          ]
+        },
+        "indices": [
+          {
+            "name": "index_feed_group_sort_order",
+            "unique": false,
+            "columnNames": [
+              "sort_order"
+            ],
+            "orders": [],
+            "createSql": "CREATE INDEX IF NOT EXISTS `index_feed_group_sort_order` ON `${TABLE_NAME}` (`sort_order`)"
+          }
+        ],
+        "foreignKeys": []
+      },
+      {
+        "tableName": "feed_group_subscription_join",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`group_id` INTEGER NOT NULL, `subscription_id` INTEGER NOT NULL, PRIMARY KEY(`group_id`, `subscription_id`), FOREIGN KEY(`group_id`) REFERENCES `feed_group`(`uid`) ON UPDATE CASCADE ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED, FOREIGN KEY(`subscription_id`) REFERENCES `subscriptions`(`uid`) ON UPDATE CASCADE ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED)",
+        "fields": [
+          {
+            "fieldPath": "feedGroupId",
+            "columnName": "group_id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "subscriptionId",
+            "columnName": "subscription_id",
+            "affinity": "INTEGER",
+            "notNull": true
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": false,
+          "columnNames": [
+            "group_id",
+            "subscription_id"
+          ]
+        },
+        "indices": [
+          {
+            "name": "index_feed_group_subscription_join_subscription_id",
+            "unique": false,
+            "columnNames": [
+              "subscription_id"
+            ],
+            "orders": [],
+            "createSql": "CREATE INDEX IF NOT EXISTS `index_feed_group_subscription_join_subscription_id` ON `${TABLE_NAME}` (`subscription_id`)"
+          }
+        ],
+        "foreignKeys": [
+          {
+            "table": "feed_group",
+            "onDelete": "CASCADE",
+            "onUpdate": "CASCADE",
+            "columns": [
+              "group_id"
+            ],
+            "referencedColumns": [
+              "uid"
+            ]
+          },
+          {
+            "table": "subscriptions",
+            "onDelete": "CASCADE",
+            "onUpdate": "CASCADE",
+            "columns": [
+              "subscription_id"
+            ],
+            "referencedColumns": [
+              "uid"
+            ]
+          }
+        ]
+      },
+      {
+        "tableName": "feed_last_updated",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`subscription_id` INTEGER NOT NULL, `last_updated` INTEGER, PRIMARY KEY(`subscription_id`), FOREIGN KEY(`subscription_id`) REFERENCES `subscriptions`(`uid`) ON UPDATE CASCADE ON DELETE CASCADE DEFERRABLE INITIALLY DEFERRED)",
+        "fields": [
+          {
+            "fieldPath": "subscriptionId",
+            "columnName": "subscription_id",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "lastUpdated",
+            "columnName": "last_updated",
+            "affinity": "INTEGER",
+            "notNull": false
+          }
+        ],
+        "primaryKey": {
+          "autoGenerate": false,
+          "columnNames": [
+            "subscription_id"
+          ]
+        },
+        "indices": [],
+        "foreignKeys": [
+          {
+            "table": "subscriptions",
+            "onDelete": "CASCADE",
+            "onUpdate": "CASCADE",
+            "columns": [
+              "subscription_id"
+            ],
+            "referencedColumns": [
+              "uid"
+            ]
+          }
+        ]
+      }
+    ],
+    "views": [],
+    "setupQueries": [
+      "CREATE TABLE IF NOT EXISTS room_master_table (id INTEGER PRIMARY KEY,identity_hash TEXT)",
+      "INSERT OR REPLACE INTO room_master_table (id,identity_hash) VALUES(42, '7591e8039faa74d8c0517dc867af9d3e')"
+    ]
+  }
+}

app/src/androidTest/java/org/schabi/newpipe/database/DatabaseMigrationTest.kt

@@ -4,15 +4,18 @@ import android.content.ContentValues
 import android.database.sqlite.SQLiteDatabase
 import androidx.room.Room
 import androidx.room.testing.MigrationTestHelper
-import androidx.sqlite.db.framework.FrameworkSQLiteOpenHelperFactory
 import androidx.test.core.app.ApplicationProvider
 import androidx.test.ext.junit.runners.AndroidJUnit4
 import androidx.test.platform.app.InstrumentationRegistry
 import org.junit.Assert.assertEquals
+import org.junit.Assert.assertNotEquals
 import org.junit.Assert.assertNull
 import org.junit.Rule
 import org.junit.Test
 import org.junit.runner.RunWith
+import org.schabi.newpipe.database.playlist.model.PlaylistEntity
+import org.schabi.newpipe.database.playlist.model.PlaylistRemoteEntity
+import org.schabi.newpipe.extractor.ServiceList
 import org.schabi.newpipe.extractor.stream.StreamType
 
 @RunWith(AndroidJUnit4::class)
@@ -21,20 +24,23 @@ class DatabaseMigrationTest {
         private const val DEFAULT_SERVICE_ID = 0
         private const val DEFAULT_URL = "https://www.youtube.com/watch?v=cDphUib5iG4"
         private const val DEFAULT_TITLE = "Test Title"
+        private const val DEFAULT_NAME = "Test Name"
         private val DEFAULT_TYPE = StreamType.VIDEO_STREAM
         private const val DEFAULT_DURATION = 480L
         private const val DEFAULT_UPLOADER_NAME = "Uploader Test"
         private const val DEFAULT_THUMBNAIL = "https://example.com/example.jpg"
 
-        private const val DEFAULT_SECOND_SERVICE_ID = 0
+        private const val DEFAULT_SECOND_SERVICE_ID = 1
         private const val DEFAULT_SECOND_URL = "https://www.youtube.com/watch?v=ncQU6iBn5Fc"
+
+        private const val DEFAULT_THIRD_SERVICE_ID = 2
+        private const val DEFAULT_THIRD_URL = "https://www.youtube.com/watch?v=dQw4w9WgXcQ"
     }
 
     @get:Rule
     val testHelper = MigrationTestHelper(
         InstrumentationRegistry.getInstrumentation(),
-        AppDatabase::class.java.canonicalName,
-        FrameworkSQLiteOpenHelperFactory()
+        AppDatabase::class.java
     )
 
     @Test
@@ -108,6 +114,20 @@ class DatabaseMigrationTest {
             Migrations.MIGRATION_6_7
         )
 
+        testHelper.runMigrationsAndValidate(
+            AppDatabase.DATABASE_NAME,
+            Migrations.DB_VER_8,
+            true,
+            Migrations.MIGRATION_7_8
+        )
+
+        testHelper.runMigrationsAndValidate(
+            AppDatabase.DATABASE_NAME,
+            Migrations.DB_VER_9,
+            true,
+            Migrations.MIGRATION_8_9
+        )
+
         val migratedDatabaseV3 = getMigratedDatabase()
         val listFromDB = migratedDatabaseV3.streamDAO().all.blockingFirst()
 
@@ -142,6 +162,157 @@ class DatabaseMigrationTest {
         assertNull(secondStreamFromMigratedDatabase.isUploadDateApproximation)
     }
 
+    @Test
+    fun migrateDatabaseFrom7to8() {
+        val databaseInV7 = testHelper.createDatabase(AppDatabase.DATABASE_NAME, Migrations.DB_VER_7)
+
+        val defaultSearch1 = " abc "
+        val defaultSearch2 = " abc"
+
+        val serviceId = DEFAULT_SERVICE_ID // YouTube
+        // Use id different to YouTube because two searches with the same query
+        // but different service are considered not equal.
+        val otherServiceId = ServiceList.SoundCloud.serviceId
+
+        databaseInV7.run {
+            insert(
+                "search_history", SQLiteDatabase.CONFLICT_FAIL,
+                ContentValues().apply {
+                    put("service_id", serviceId)
+                    put("search", defaultSearch1)
+                }
+            )
+            insert(
+                "search_history", SQLiteDatabase.CONFLICT_FAIL,
+                ContentValues().apply {
+                    put("service_id", serviceId)
+                    put("search", defaultSearch2)
+                }
+            )
+            insert(
+                "search_history", SQLiteDatabase.CONFLICT_FAIL,
+                ContentValues().apply {
+                    put("service_id", otherServiceId)
+                    put("search", defaultSearch1)
+                }
+            )
+            insert(
+                "search_history", SQLiteDatabase.CONFLICT_FAIL,
+                ContentValues().apply {
+                    put("service_id", otherServiceId)
+                    put("search", defaultSearch2)
+                }
+            )
+            close()
+        }
+
+        testHelper.runMigrationsAndValidate(
+            AppDatabase.DATABASE_NAME, Migrations.DB_VER_8,
+            true, Migrations.MIGRATION_7_8
+        )
+
+        testHelper.runMigrationsAndValidate(
+            AppDatabase.DATABASE_NAME, Migrations.DB_VER_9,
+            true, Migrations.MIGRATION_8_9
+        )
+
+        val migratedDatabaseV8 = getMigratedDatabase()
+        val listFromDB = migratedDatabaseV8.searchHistoryDAO().all.blockingFirst()
+
+        assertEquals(2, listFromDB.size)
+        assertEquals("abc", listFromDB[0].search)
+        assertEquals("abc", listFromDB[1].search)
+        assertNotEquals(listFromDB[0].serviceId, listFromDB[1].serviceId)
+    }
+
+    @Test
+    fun migrateDatabaseFrom8to9() {
+        val databaseInV8 = testHelper.createDatabase(AppDatabase.DATABASE_NAME, Migrations.DB_VER_8)
+
+        val localUid1: Long
+        val localUid2: Long
+        val remoteUid1: Long
+        val remoteUid2: Long
+        databaseInV8.run {
+            localUid1 = insert(
+                "playlists", SQLiteDatabase.CONFLICT_FAIL,
+                ContentValues().apply {
+                    put("name", DEFAULT_NAME + "1")
+                    put("is_thumbnail_permanent", false)
+                    put("thumbnail_stream_id", -1)
+                }
+            )
+            localUid2 = insert(
+                "playlists", SQLiteDatabase.CONFLICT_FAIL,
+                ContentValues().apply {
+                    put("name", DEFAULT_NAME + "2")
+                    put("is_thumbnail_permanent", false)
+                    put("thumbnail_stream_id", -1)
+                }
+            )
+            delete(
+                "playlists", "uid = ?",
+                Array(1) { localUid1 }
+            )
+            remoteUid1 = insert(
+                "remote_playlists", SQLiteDatabase.CONFLICT_FAIL,
+                ContentValues().apply {
+                    put("service_id", DEFAULT_SERVICE_ID)
+                    put("url", DEFAULT_URL)
+                }
+            )
+            remoteUid2 = insert(
+                "remote_playlists", SQLiteDatabase.CONFLICT_FAIL,
+                ContentValues().apply {
+                    put("service_id", DEFAULT_SECOND_SERVICE_ID)
+                    put("url", DEFAULT_SECOND_URL)
+                }
+            )
+            delete(
+                "remote_playlists", "uid = ?",
+                Array(1) { remoteUid2 }
+            )
+            close()
+        }
+
+        testHelper.runMigrationsAndValidate(
+            AppDatabase.DATABASE_NAME,
+            Migrations.DB_VER_9,
+            true,
+            Migrations.MIGRATION_8_9
+        )
+
+        val migratedDatabaseV9 = getMigratedDatabase()
+        var localListFromDB = migratedDatabaseV9.playlistDAO().all.blockingFirst()
+        var remoteListFromDB = migratedDatabaseV9.playlistRemoteDAO().all.blockingFirst()
+
+        assertEquals(1, localListFromDB.size)
+        assertEquals(localUid2, localListFromDB[0].uid)
+        assertEquals(-1, localListFromDB[0].displayIndex)
+        assertEquals(1, remoteListFromDB.size)
+        assertEquals(remoteUid1, remoteListFromDB[0].uid)
+        assertEquals(-1, remoteListFromDB[0].displayIndex)
+
+        val localUid3 = migratedDatabaseV9.playlistDAO().insert(
+            PlaylistEntity(DEFAULT_NAME + "3", false, -1, -1)
+        )
+        val remoteUid3 = migratedDatabaseV9.playlistRemoteDAO().insert(
+            PlaylistRemoteEntity(
+                DEFAULT_THIRD_SERVICE_ID, DEFAULT_NAME, DEFAULT_THIRD_URL,
+                DEFAULT_THUMBNAIL, DEFAULT_UPLOADER_NAME, -1, 10
+            )
+        )
+
+        localListFromDB = migratedDatabaseV9.playlistDAO().all.blockingFirst()
+        remoteListFromDB = migratedDatabaseV9.playlistRemoteDAO().all.blockingFirst()
+        assertEquals(2, localListFromDB.size)
+        assertEquals(localUid3, localListFromDB[1].uid)
+        assertEquals(-1, localListFromDB[1].displayIndex)
+        assertEquals(2, remoteListFromDB.size)
+        assertEquals(remoteUid3, remoteListFromDB[1].uid)
+        assertEquals(-1, remoteListFromDB[1].displayIndex)
+    }
+
     private fun getMigratedDatabase(): AppDatabase {
         val database: AppDatabase = Room.databaseBuilder(
             ApplicationProvider.getApplicationContext(),

app/src/androidTest/java/org/schabi/newpipe/database/FeedDAOTest.kt

@@ -0,0 +1,130 @@
+package org.schabi.newpipe.database
+
+import android.content.Context
+import androidx.room.Room
+import androidx.test.core.app.ApplicationProvider
+import io.reactivex.rxjava3.core.Single
+import org.junit.After
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertNotNull
+import org.junit.Before
+import org.junit.Test
+import org.schabi.newpipe.database.feed.dao.FeedDAO
+import org.schabi.newpipe.database.feed.model.FeedEntity
+import org.schabi.newpipe.database.feed.model.FeedGroupEntity
+import org.schabi.newpipe.database.stream.StreamWithState
+import org.schabi.newpipe.database.stream.dao.StreamDAO
+import org.schabi.newpipe.database.stream.model.StreamEntity
+import org.schabi.newpipe.database.subscription.SubscriptionDAO
+import org.schabi.newpipe.database.subscription.SubscriptionEntity
+import org.schabi.newpipe.extractor.ServiceList
+import org.schabi.newpipe.extractor.channel.ChannelInfo
+import org.schabi.newpipe.extractor.stream.StreamType
+import java.io.IOException
+import java.time.OffsetDateTime
+import kotlin.streams.toList
+
+class FeedDAOTest {
+    private lateinit var db: AppDatabase
+    private lateinit var feedDAO: FeedDAO
+    private lateinit var streamDAO: StreamDAO
+    private lateinit var subscriptionDAO: SubscriptionDAO
+
+    private val serviceId = ServiceList.YouTube.serviceId
+
+    private val stream1 = StreamEntity(1, serviceId, "https://youtube.com/watch?v=1", "stream 1", StreamType.VIDEO_STREAM, 1000, "channel-1", "https://youtube.com/channel/1", "https://i.ytimg.com/vi/1/hqdefault.jpg", 100, "2023-01-01", OffsetDateTime.parse("2023-01-01T00:00:00Z"))
+    private val stream2 = StreamEntity(2, serviceId, "https://youtube.com/watch?v=2", "stream 2", StreamType.VIDEO_STREAM, 1000, "channel-1", "https://youtube.com/channel/1", "https://i.ytimg.com/vi/1/hqdefault.jpg", 100, "2023-01-02", OffsetDateTime.parse("2023-01-02T00:00:00Z"))
+    private val stream3 = StreamEntity(3, serviceId, "https://youtube.com/watch?v=3", "stream 3", StreamType.LIVE_STREAM, 1000, "channel-1", "https://youtube.com/channel/1", "https://i.ytimg.com/vi/1/hqdefault.jpg", 100, "2023-01-03", OffsetDateTime.parse("2023-01-03T00:00:00Z"))
+    private val stream4 = StreamEntity(4, serviceId, "https://youtube.com/watch?v=4", "stream 4", StreamType.VIDEO_STREAM, 1000, "channel-2", "https://youtube.com/channel/2", "https://i.ytimg.com/vi/1/hqdefault.jpg", 100, "2023-08-10", OffsetDateTime.parse("2023-08-10T00:00:00Z"))
+    private val stream5 = StreamEntity(5, serviceId, "https://youtube.com/watch?v=5", "stream 5", StreamType.VIDEO_STREAM, 1000, "channel-2", "https://youtube.com/channel/2", "https://i.ytimg.com/vi/1/hqdefault.jpg", 100, "2023-08-20", OffsetDateTime.parse("2023-08-20T00:00:00Z"))
+    private val stream6 = StreamEntity(6, serviceId, "https://youtube.com/watch?v=6", "stream 6", StreamType.VIDEO_STREAM, 1000, "channel-3", "https://youtube.com/channel/3", "https://i.ytimg.com/vi/1/hqdefault.jpg", 100, "2023-09-01", OffsetDateTime.parse("2023-09-01T00:00:00Z"))
+    private val stream7 = StreamEntity(7, serviceId, "https://youtube.com/watch?v=7", "stream 7", StreamType.VIDEO_STREAM, 1000, "channel-4", "https://youtube.com/channel/4", "https://i.ytimg.com/vi/1/hqdefault.jpg", 100, "2023-08-10", OffsetDateTime.parse("2023-08-10T00:00:00Z"))
+
+    private val allStreams = listOf(
+        stream1, stream2, stream3, stream4, stream5, stream6, stream7
+    )
+
+    @Before
+    fun createDb() {
+        val context = ApplicationProvider.getApplicationContext<Context>()
+        db = Room.inMemoryDatabaseBuilder(
+            context, AppDatabase::class.java
+        ).build()
+        feedDAO = db.feedDAO()
+        streamDAO = db.streamDAO()
+        subscriptionDAO = db.subscriptionDAO()
+    }
+
+    @After
+    @Throws(IOException::class)
+    fun closeDb() {
+        db.close()
+    }
+
+    @Test
+    fun testUnlinkStreamsOlderThan_KeepOne() {
+        setupUnlinkDelete("2023-08-15T00:00:00Z")
+        val streams = feedDAO.getStreams(
+            FeedGroupEntity.GROUP_ALL_ID, includePlayed = true, includePartiallyPlayed = true, null
+        )
+            .blockingGet()
+        val allowedStreams = listOf(stream3, stream5, stream6, stream7)
+        assertEqual(streams, allowedStreams)
+    }
+
+    @Test
+    fun testUnlinkStreamsOlderThan_KeepMultiple() {
+        setupUnlinkDelete("2023-08-01T00:00:00Z")
+        val streams = feedDAO.getStreams(
+            FeedGroupEntity.GROUP_ALL_ID, includePlayed = true, includePartiallyPlayed = true, null
+        )
+            .blockingGet()
+        val allowedStreams = listOf(stream3, stream4, stream5, stream6, stream7)
+        assertEqual(streams, allowedStreams)
+    }
+
+    private fun assertEqual(streams: List<StreamWithState>?, allowedStreams: List<StreamEntity>) {
+        assertNotNull(streams)
+        assertEquals(
+            allowedStreams,
+            streams!!
+                .map { it.stream }
+                .sortedBy { it.uid }
+                .toList()
+        )
+    }
+
+    private fun setupUnlinkDelete(time: String) {
+        clearAndFillTables()
+        Single.fromCallable {
+            feedDAO.unlinkStreamsOlderThan(OffsetDateTime.parse(time))
+        }.blockingSubscribe()
+        Single.fromCallable {
+            streamDAO.deleteOrphans()
+        }.blockingSubscribe()
+    }
+
+    private fun clearAndFillTables() {
+        db.clearAllTables()
+        streamDAO.insertAll(allStreams)
+        subscriptionDAO.insertAll(
+            listOf(
+                SubscriptionEntity.from(ChannelInfo(serviceId, "1", "https://youtube.com/channel/1", "https://youtube.com/channel/1", "channel-1")),
+                SubscriptionEntity.from(ChannelInfo(serviceId, "2", "https://youtube.com/channel/2", "https://youtube.com/channel/2", "channel-2")),
+                SubscriptionEntity.from(ChannelInfo(serviceId, "3", "https://youtube.com/channel/3", "https://youtube.com/channel/3", "channel-3")),
+                SubscriptionEntity.from(ChannelInfo(serviceId, "4", "https://youtube.com/channel/4", "https://youtube.com/channel/4", "channel-4")),
+            )
+        )
+        feedDAO.insertAll(
+            listOf(
+                FeedEntity(1, 1),
+                FeedEntity(2, 1),
+                FeedEntity(3, 1),
+                FeedEntity(4, 2),
+                FeedEntity(5, 2),
+                FeedEntity(6, 3),
+                FeedEntity(7, 4),
+            )
+        )
+    }
+}

app/src/androidTest/java/org/schabi/newpipe/local/subscription/SubscriptionManagerTest.java

@@ -0,0 +1,82 @@
+package org.schabi.newpipe.local.subscription;
+
+import static org.junit.Assert.assertEquals;
+
+import androidx.test.core.app.ApplicationProvider;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.schabi.newpipe.database.AppDatabase;
+import org.schabi.newpipe.database.feed.model.FeedGroupEntity;
+import org.schabi.newpipe.database.subscription.SubscriptionEntity;
+import org.schabi.newpipe.extractor.channel.ChannelInfo;
+import org.schabi.newpipe.extractor.exceptions.ExtractionException;
+import org.schabi.newpipe.testUtil.TestDatabase;
+import org.schabi.newpipe.testUtil.TrampolineSchedulerRule;
+
+import java.io.IOException;
+import java.util.List;
+
+public class SubscriptionManagerTest {
+    private AppDatabase database;
+    private SubscriptionManager manager;
+
+    @Rule
+    public TrampolineSchedulerRule trampolineScheduler = new TrampolineSchedulerRule();
+
+
+    private SubscriptionEntity getAssertOneSubscriptionEntity() {
+        final List<SubscriptionEntity> entities = manager
+                .getSubscriptions(FeedGroupEntity.GROUP_ALL_ID, "", false)
+                .blockingFirst();
+        assertEquals(1, entities.size());
+        return entities.get(0);
+    }
+
+
+    @Before
+    public void setup() {
+        database = TestDatabase.Companion.createReplacingNewPipeDatabase();
+        manager = new SubscriptionManager(ApplicationProvider.getApplicationContext());
+    }
+
+    @After
+    public void cleanUp() {
+        database.close();
+    }
+
+    @Test
+    public void testInsert() throws ExtractionException, IOException {
+        final ChannelInfo info = ChannelInfo.getInfo("https://www.youtube.com/c/3blue1brown");
+        final SubscriptionEntity subscription = SubscriptionEntity.from(info);
+
+        manager.insertSubscription(subscription);
+        final SubscriptionEntity readSubscription = getAssertOneSubscriptionEntity();
+
+        // the uid has changed, since the uid is chosen upon inserting, but the rest should match
+        assertEquals(subscription.getServiceId(), readSubscription.getServiceId());
+        assertEquals(subscription.getUrl(), readSubscription.getUrl());
+        assertEquals(subscription.getName(), readSubscription.getName());
+        assertEquals(subscription.getAvatarUrl(), readSubscription.getAvatarUrl());
+        assertEquals(subscription.getSubscriberCount(), readSubscription.getSubscriberCount());
+        assertEquals(subscription.getDescription(), readSubscription.getDescription());
+    }
+
+    @Test
+    public void testUpdateNotificationMode() throws ExtractionException, IOException {
+        final ChannelInfo info = ChannelInfo.getInfo("https://www.youtube.com/c/veritasium");
+        final SubscriptionEntity subscription = SubscriptionEntity.from(info);
+        subscription.setNotificationMode(0);
+
+        manager.insertSubscription(subscription);
+        manager.updateNotificationMode(subscription.getServiceId(), subscription.getUrl(), 1)
+                .blockingAwait();
+        final SubscriptionEntity anotherSubscription = getAssertOneSubscriptionEntity();
+
+        assertEquals(0, subscription.getNotificationMode());
+        assertEquals(subscription.getUrl(), anotherSubscription.getUrl());
+        assertEquals(1, anotherSubscription.getNotificationMode());
+    }
+}

app/src/androidTest/java/org/schabi/newpipe/util/StreamItemAdapterTest.kt

@@ -12,15 +12,21 @@ import androidx.test.ext.junit.runners.AndroidJUnit4
 import androidx.test.filters.MediumTest
 import androidx.test.internal.runner.junit4.statement.UiThreadStatement
 import org.junit.Assert
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertFalse
+import org.junit.Assert.assertNull
+import org.junit.Assert.assertTrue
 import org.junit.Before
 import org.junit.Test
 import org.junit.runner.RunWith
 import org.schabi.newpipe.R
 import org.schabi.newpipe.extractor.MediaFormat
+import org.schabi.newpipe.extractor.downloader.Response
 import org.schabi.newpipe.extractor.stream.AudioStream
 import org.schabi.newpipe.extractor.stream.Stream
 import org.schabi.newpipe.extractor.stream.SubtitlesStream
 import org.schabi.newpipe.extractor.stream.VideoStream
+import org.schabi.newpipe.util.StreamItemAdapter.StreamInfoWrapper
 
 @MediumTest
 @RunWith(AndroidJUnit4::class)
@@ -84,7 +90,7 @@ class StreamItemAdapterTest {
     @Test
     fun subtitleStreams_noIcon() {
         val adapter = StreamItemAdapter<SubtitlesStream, Stream>(
-            StreamItemAdapter.StreamSizeWrapper(
+            StreamItemAdapter.StreamInfoWrapper(
                 (0 until 5).map {
                     SubtitlesStream.Builder()
                         .setContent("https://example.com", true)
@@ -105,7 +111,7 @@ class StreamItemAdapterTest {
     @Test
     fun audioStreams_noIcon() {
         val adapter = StreamItemAdapter<AudioStream, Stream>(
-            StreamItemAdapter.StreamSizeWrapper(
+            StreamItemAdapter.StreamInfoWrapper(
                 (0 until 5).map {
                     AudioStream.Builder()
                         .setId(Stream.ID_UNKNOWN)
@@ -123,12 +129,109 @@ class StreamItemAdapterTest {
         }
     }
 
+    @Test
+    fun retrieveMediaFormatFromFileTypeHeaders() {
+        val streams = getIncompleteAudioStreams(5)
+        val wrapper = StreamInfoWrapper(streams, context)
+        val retrieveMediaFormat = { stream: AudioStream, response: Response ->
+            StreamInfoWrapper.retrieveMediaFormatFromFileTypeHeaders(stream, wrapper, response)
+        }
+        val helper = AssertionHelper(streams, wrapper, retrieveMediaFormat)
+
+        helper.assertInvalidResponse(getResponse(mapOf(Pair("content-length", "mp3"))), 0)
+        helper.assertInvalidResponse(getResponse(mapOf(Pair("file-type", "mp0"))), 1)
+
+        helper.assertValidResponse(getResponse(mapOf(Pair("x-amz-meta-file-type", "aiff"))), 2, MediaFormat.AIFF)
+        helper.assertValidResponse(getResponse(mapOf(Pair("file-type", "mp3"))), 3, MediaFormat.MP3)
+    }
+
+    @Test
+    fun retrieveMediaFormatFromContentDispositionHeader() {
+        val streams = getIncompleteAudioStreams(11)
+        val wrapper = StreamInfoWrapper(streams, context)
+        val retrieveMediaFormat = { stream: AudioStream, response: Response ->
+            StreamInfoWrapper.retrieveMediaFormatFromContentDispositionHeader(stream, wrapper, response)
+        }
+        val helper = AssertionHelper(streams, wrapper, retrieveMediaFormat)
+
+        helper.assertInvalidResponse(getResponse(mapOf(Pair("content-length", "mp3"))), 0)
+        helper.assertInvalidResponse(
+            getResponse(mapOf(Pair("Content-Disposition", "filename=\"train.png\""))), 1
+        )
+        helper.assertInvalidResponse(
+            getResponse(mapOf(Pair("Content-Disposition", "form-data; name=\"data.csv\""))), 2
+        )
+        helper.assertInvalidResponse(
+            getResponse(mapOf(Pair("Content-Disposition", "form-data; filename=\"data.csv\""))), 3
+        )
+        helper.assertInvalidResponse(
+            getResponse(mapOf(Pair("Content-Disposition", "form-data; name=\"fieldName\"; filename*=\"filename.jpg\""))), 4
+        )
+
+        helper.assertValidResponse(
+            getResponse(mapOf(Pair("Content-Disposition", "filename=\"train.ogg\""))),
+            5, MediaFormat.OGG
+        )
+        helper.assertValidResponse(
+            getResponse(mapOf(Pair("Content-Disposition", "some-form-data; filename=\"audio.flac\""))),
+            6, MediaFormat.FLAC
+        )
+        helper.assertValidResponse(
+            getResponse(mapOf(Pair("Content-Disposition", "form-data; name=\"audio.aiff\"; filename=\"audio.aiff\""))),
+            7, MediaFormat.AIFF
+        )
+        helper.assertValidResponse(
+            getResponse(mapOf(Pair("Content-Disposition", "form-data; name=\"alien?\"; filename*=UTF-8''%CE%B1%CE%BB%CE%B9%CF%B5%CE%BD.m4a"))),
+            8, MediaFormat.M4A
+        )
+        helper.assertValidResponse(
+            getResponse(mapOf(Pair("Content-Disposition", "form-data; name=\"audio.mp3\"; filename=\"audio.opus\"; filename*=UTF-8''alien.opus"))),
+            9, MediaFormat.OPUS
+        )
+        helper.assertValidResponse(
+            getResponse(mapOf(Pair("Content-Disposition", "form-data; name=\"audio.mp3\"; filename=\"audio.opus\"; filename*=\"UTF-8''alien.opus\""))),
+            10, MediaFormat.OPUS
+        )
+    }
+
+    @Test
+    fun retrieveMediaFormatFromContentTypeHeader() {
+        val streams = getIncompleteAudioStreams(12)
+        val wrapper = StreamInfoWrapper(streams, context)
+        val retrieveMediaFormat = { stream: AudioStream, response: Response ->
+            StreamInfoWrapper.retrieveMediaFormatFromContentTypeHeader(stream, wrapper, response)
+        }
+        val helper = AssertionHelper(streams, wrapper, retrieveMediaFormat)
+
+        helper.assertInvalidResponse(getResponse(mapOf(Pair("content-length", "984501"))), 0)
+        helper.assertInvalidResponse(getResponse(mapOf(Pair("Content-Type", "audio/xyz"))), 1)
+        helper.assertInvalidResponse(getResponse(mapOf(Pair("Content-Type", "mp3"))), 2)
+        helper.assertInvalidResponse(getResponse(mapOf(Pair("Content-Type", "mp3"))), 3)
+        helper.assertInvalidResponse(getResponse(mapOf(Pair("Content-Type", "audio/mpeg"))), 4)
+        helper.assertInvalidResponse(getResponse(mapOf(Pair("Content-Type", "audio/aif"))), 5)
+        helper.assertInvalidResponse(getResponse(mapOf(Pair("Content-Type", "whatever"))), 6)
+        helper.assertInvalidResponse(getResponse(mapOf()), 7)
+
+        helper.assertValidResponse(
+            getResponse(mapOf(Pair("Content-Type", "audio/flac"))), 8, MediaFormat.FLAC
+        )
+        helper.assertValidResponse(
+            getResponse(mapOf(Pair("Content-Type", "audio/wav"))), 9, MediaFormat.WAV
+        )
+        helper.assertValidResponse(
+            getResponse(mapOf(Pair("Content-Type", "audio/opus"))), 10, MediaFormat.OPUS
+        )
+        helper.assertValidResponse(
+            getResponse(mapOf(Pair("Content-Type", "audio/aiff"))), 11, MediaFormat.AIFF
+        )
+    }
+
     /**
      * @return a list of video streams, in which their video only property mirrors the provided
      * [videoOnly] vararg.
      */
     private fun getVideoStreams(vararg videoOnly: Boolean) =
-        StreamItemAdapter.StreamSizeWrapper(
+        StreamItemAdapter.StreamInfoWrapper(
             videoOnly.map {
                 VideoStream.Builder()
                     .setId(Stream.ID_UNKNOWN)
@@ -161,6 +264,19 @@ class StreamItemAdapterTest {
             }
         )
 
+    private fun getIncompleteAudioStreams(size: Int): List<AudioStream> {
+        val list = ArrayList<AudioStream>(size)
+        for (i in 1..size) {
+            list.add(
+                AudioStream.Builder()
+                    .setId(Stream.ID_UNKNOWN)
+                    .setContent("https://example.com/$i", true)
+                    .build()
+            )
+        }
+        return list
+    }
+
     /**
      * Checks whether the item at [position] in the [spinner] has the correct icon visibility when
      * it is shown in normal mode (selected) and in dropdown mode (user is choosing one of a list).
@@ -196,11 +312,56 @@ class StreamItemAdapterTest {
             streams.forEachIndexed { index, stream ->
                 val secondaryStreamHelper: SecondaryStreamHelper<T>? = stream?.let {
                     SecondaryStreamHelper(
-                        StreamItemAdapter.StreamSizeWrapper(streams, context),
+                        StreamItemAdapter.StreamInfoWrapper(streams, context),
                         it
                     )
                 }
                 put(index, secondaryStreamHelper)
             }
         }
+
+    private fun getResponse(headers: Map<String, String>): Response {
+        val listHeaders = HashMap<String, List<String>>()
+        headers.forEach { entry ->
+            listHeaders[entry.key] = listOf(entry.value)
+        }
+        return Response(200, null, listHeaders, "", "")
+    }
+
+    /**
+     * Helper class for assertion related to extractions of [MediaFormat]s.
+     */
+    class AssertionHelper<T : Stream>(
+        private val streams: List<T>,
+        private val wrapper: StreamInfoWrapper<T>,
+        private val retrieveMediaFormat: (stream: T, response: Response) -> Boolean
+    ) {
+
+        /**
+         * Assert that an invalid response does not result in wrongly extracted [MediaFormat].
+         */
+        fun assertInvalidResponse(
+            response: Response,
+            index: Int
+        ) {
+            assertFalse(
+                "invalid header returns valid value", retrieveMediaFormat(streams[index], response)
+            )
+            assertNull("Media format extracted although stated otherwise", wrapper.getFormat(index))
+        }
+
+        /**
+         * Assert that a valid response results in correctly extracted and handled [MediaFormat].
+         */
+        fun assertValidResponse(
+            response: Response,
+            index: Int,
+            format: MediaFormat
+        ) {
+            assertTrue(
+                "header was not recognized", retrieveMediaFormat(streams[index], response)
+            )
+            assertEquals("Wrong media format extracted", format, wrapper.getFormat(index))
+        }
+    }
 }

app/src/debug/java/org/schabi/newpipe/DebugApp.kt

@@ -3,7 +3,6 @@ package org.schabi.newpipe
 import androidx.preference.PreferenceManager
 import com.facebook.stetho.Stetho
 import com.facebook.stetho.okhttp3.StethoInterceptor
-import leakcanary.AppWatcher
 import leakcanary.LeakCanary
 import okhttp3.OkHttpClient
 import org.schabi.newpipe.extractor.downloader.Downloader
@@ -13,8 +12,6 @@ class DebugApp : App() {
         super.onCreate()
         initStetho()
 
-        // Give each object 10 seconds to be GC'ed, before LeakCanary gets nosy on it
-        AppWatcher.config = AppWatcher.config.copy(watchDurationMillis = 10000)
         LeakCanary.config = LeakCanary.config.copy(
             dumpHeap = PreferenceManager
                 .getDefaultSharedPreferences(this).getBoolean(

app/src/main/java/androidx/fragment/app/FragmentStatePagerAdapterMenuWorkaround.java

@@ -25,6 +25,7 @@ import android.view.ViewGroup;
 import androidx.annotation.IntDef;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.core.os.BundleCompat;
 import androidx.lifecycle.Lifecycle;
 import androidx.viewpager.widget.PagerAdapter;
 
@@ -284,7 +285,7 @@ public abstract class FragmentStatePagerAdapterMenuWorkaround extends PagerAdapt
         Bundle state = null;
         if (!mSavedState.isEmpty()) {
             state = new Bundle();
-            state.putParcelableArray("states", mSavedState.toArray(new Fragment.SavedState[0]));
+            state.putParcelableArrayList("states", mSavedState);
         }
         for (int i = 0; i < mFragments.size(); i++) {
             final Fragment f = mFragments.get(i);
@@ -311,13 +312,12 @@ public abstract class FragmentStatePagerAdapterMenuWorkaround extends PagerAdapt
         if (state != null) {
             final Bundle bundle = (Bundle) state;
             bundle.setClassLoader(loader);
-            final Parcelable[] fss = bundle.getParcelableArray("states");
+            final var states = BundleCompat.getParcelableArrayList(bundle, "states",
+                    Fragment.SavedState.class);
             mSavedState.clear();
             mFragments.clear();
-            if (fss != null) {
-                for (final Parcelable parcelable : fss) {
-                    mSavedState.add((Fragment.SavedState) parcelable);
-                }
+            if (states != null) {
+                mSavedState.addAll(states);
             }
             final Iterable<String> keys = bundle.keySet();
             for (final String key : keys) {

app/src/main/java/org/schabi/newpipe/App.java

@@ -20,9 +20,11 @@ import org.schabi.newpipe.extractor.downloader.Downloader;
 import org.schabi.newpipe.ktx.ExceptionUtils;
 import org.schabi.newpipe.settings.NewPipeSettings;
 import org.schabi.newpipe.util.Localization;
-import org.schabi.newpipe.util.PicassoHelper;
+import org.schabi.newpipe.util.image.ImageStrategy;
+import org.schabi.newpipe.util.image.PicassoHelper;
 import org.schabi.newpipe.util.ServiceHelper;
 import org.schabi.newpipe.util.StateSaver;
+import org.schabi.newpipe.util.image.PreferredImageQuality;
 
 import java.io.IOException;
 import java.io.InterruptedIOException;
@@ -58,6 +60,8 @@ import io.reactivex.rxjava3.plugins.RxJavaPlugins;
 public class App extends Application {
     public static final String PACKAGE_NAME = BuildConfig.APPLICATION_ID;
     private static final String TAG = App.class.toString();
+
+    private boolean isFirstRun = false;
     private static App app;
 
     @NonNull
@@ -83,7 +87,13 @@ public class App extends Application {
             return;
         }
 
-        // Initialize settings first because others inits can use its values
+        // check if the last used preference version is set
+        // to determine whether this is the first app run
+        final int lastUsedPrefVersion = PreferenceManager.getDefaultSharedPreferences(this)
+                .getInt(getString(R.string.last_used_preferences_version), -1);
+        isFirstRun = lastUsedPrefVersion == -1;
+
+        // Initialize settings first because other initializations can use its values
         NewPipeSettings.initSettings(this);
 
         NewPipe.init(getDownloader(),
@@ -99,8 +109,9 @@ public class App extends Application {
         // Initialize image loader
         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
         PicassoHelper.init(this);
-        PicassoHelper.setShouldLoadImages(
-                prefs.getBoolean(getString(R.string.download_thumbnail_key), true));
+        ImageStrategy.setPreferredImageQuality(PreferredImageQuality.fromPreferenceKey(this,
+                prefs.getString(getString(R.string.image_quality_key),
+                        getString(R.string.image_quality_default))));
         PicassoHelper.setIndicatorsEnabled(MainActivity.DEBUG
                 && prefs.getBoolean(getString(R.string.show_image_indicators_key), false));
 
@@ -252,4 +263,7 @@ public class App extends Application {
         return false;
     }
 
+    public boolean isFirstRun() {
+        return isFirstRun;
+    }
 }

app/src/main/java/org/schabi/newpipe/BaseFragment.java

@@ -12,7 +12,6 @@ import androidx.fragment.app.FragmentManager;
 
 import icepick.Icepick;
 import icepick.State;
-import leakcanary.AppWatcher;
 
 public abstract class BaseFragment extends Fragment {
     protected final String TAG = getClass().getSimpleName() + "@" + Integer.toHexString(hashCode());
@@ -77,20 +76,33 @@ public abstract class BaseFragment extends Fragment {
     protected void onRestoreInstanceState(@NonNull final Bundle savedInstanceState) {
     }
 
-    @Override
-    public void onDestroy() {
-        super.onDestroy();
-
-        AppWatcher.INSTANCE.getObjectWatcher().watch(this);
-    }
-
     /*//////////////////////////////////////////////////////////////////////////
     // Init
     //////////////////////////////////////////////////////////////////////////*/
 
+    /**
+     * This method is called in {@link #onViewCreated(View, Bundle)} to initialize the views.
+     *
+     * <p>
+     * {@link #initListeners()} is called after this method to initialize the corresponding
+     * listeners.
+     * </p>
+     * @param rootView The inflated view for this fragment
+     *                 (provided by {@link #onViewCreated(View, Bundle)})
+     * @param savedInstanceState The saved state of this fragment
+ *                               (provided by {@link #onViewCreated(View, Bundle)})
+     */
     protected void initViews(final View rootView, final Bundle savedInstanceState) {
     }
 
+    /**
+     * Initialize the listeners for this fragment.
+     *
+     * <p>
+     * This method is called after {@link #initViews(View, Bundle)}
+     * in {@link #onViewCreated(View, Bundle)}.
+     * </p>
+     */
     protected void initListeners() {
     }
 
@@ -108,9 +120,20 @@ public abstract class BaseFragment extends Fragment {
         }
     }
 
+    /**
+     * Finds the root fragment by looping through all of the parent fragments. The root fragment
+     * is supposed to be {@link org.schabi.newpipe.fragments.MainFragment}, and is the fragment that
+     * handles keeping the backstack of opened fragments in NewPipe, and also the player bottom
+     * sheet. This function therefore returns the fragment manager of said fragment.
+     *
+     * @return the fragment manager of the root fragment, i.e.
+     *         {@link org.schabi.newpipe.fragments.MainFragment}
+     */
     protected FragmentManager getFM() {
-        return getParentFragment() == null
-                ? getFragmentManager()
-                : getParentFragment().getFragmentManager();
+        Fragment current = this;
+        while (current.getParentFragment() != null) {
+            current = current.getParentFragment();
+        }
+        return current.getFragmentManager();
     }
 }

app/src/main/java/org/schabi/newpipe/MainActivity.java

@@ -44,6 +44,7 @@ import android.widget.FrameLayout;
 import android.widget.Spinner;
 
 import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 import androidx.appcompat.app.ActionBar;
 import androidx.appcompat.app.ActionBarDrawerToggle;
 import androidx.appcompat.app.AppCompatActivity;
@@ -51,6 +52,7 @@ import androidx.core.app.ActivityCompat;
 import androidx.core.view.GravityCompat;
 import androidx.drawerlayout.widget.DrawerLayout;
 import androidx.fragment.app.Fragment;
+import androidx.fragment.app.FragmentContainerView;
 import androidx.fragment.app.FragmentManager;
 import androidx.preference.PreferenceManager;
 
@@ -63,19 +65,21 @@ import org.schabi.newpipe.databinding.InstanceSpinnerLayoutBinding;
 import org.schabi.newpipe.databinding.ToolbarLayoutBinding;
 import org.schabi.newpipe.error.ErrorUtil;
 import org.schabi.newpipe.extractor.NewPipe;
-import org.schabi.newpipe.extractor.ServiceList;
 import org.schabi.newpipe.extractor.StreamingService;
+import org.schabi.newpipe.extractor.comments.CommentsInfoItem;
 import org.schabi.newpipe.extractor.exceptions.ExtractionException;
 import org.schabi.newpipe.extractor.services.peertube.PeertubeInstance;
 import org.schabi.newpipe.fragments.BackPressable;
 import org.schabi.newpipe.fragments.MainFragment;
 import org.schabi.newpipe.fragments.detail.VideoDetailFragment;
+import org.schabi.newpipe.fragments.list.comments.CommentRepliesFragment;
 import org.schabi.newpipe.fragments.list.search.SearchFragment;
 import org.schabi.newpipe.local.feed.notifications.NotificationWorker;
 import org.schabi.newpipe.player.Player;
 import org.schabi.newpipe.player.event.OnKeyDownListener;
 import org.schabi.newpipe.player.helper.PlayerHolder;
 import org.schabi.newpipe.player.playqueue.PlayQueue;
+import org.schabi.newpipe.settings.UpdateSettingsFragment;
 import org.schabi.newpipe.util.Constants;
 import org.schabi.newpipe.util.DeviceUtils;
 import org.schabi.newpipe.util.KioskTranslator;
@@ -83,6 +87,7 @@ import org.schabi.newpipe.util.Localization;
 import org.schabi.newpipe.util.NavigationHelper;
 import org.schabi.newpipe.util.PeertubeHelper;
 import org.schabi.newpipe.util.PermissionHelper;
+import org.schabi.newpipe.util.ReleaseVersionUtil;
 import org.schabi.newpipe.util.SerializedCache;
 import org.schabi.newpipe.util.ServiceHelper;
 import org.schabi.newpipe.util.StateSaver;
@@ -164,6 +169,11 @@ public class MainActivity extends AppCompatActivity {
             // if this is enabled by the user.
             NotificationWorker.initialize(this);
         }
+        if (!UpdateSettingsFragment.wasUserAskedForConsent(this)
+                && !App.getApp().isFirstRun()
+                && ReleaseVersionUtil.INSTANCE.isReleaseApk()) {
+            UpdateSettingsFragment.askForConsentToUpdateChecks(this);
+        }
     }
 
     @Override
@@ -173,7 +183,8 @@ public class MainActivity extends AppCompatActivity {
         final App app = App.getApp();
         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(app);
 
-        if (prefs.getBoolean(app.getString(R.string.update_app_key), true)) {
+        if (prefs.getBoolean(app.getString(R.string.update_app_key), false)
+                && prefs.getBoolean(app.getString(R.string.update_check_consent_key), false)) {
             // Start the worker which is checking all conditions
             // and eventually searching for a new version.
             NewVersionWorker.enqueueNewVersionCheckingWork(app, false);
@@ -220,14 +231,14 @@ public class MainActivity extends AppCompatActivity {
         final int currentServiceId = ServiceHelper.getSelectedServiceId(this);
         final StreamingService service = NewPipe.getService(currentServiceId);
 
-        int kioskId = 0;
+        int kioskMenuItemId = 0;
 
         for (final String ks : service.getKioskList().getAvailableKiosks()) {
             drawerLayoutBinding.navigation.getMenu()
-                    .add(R.id.menu_tabs_group, kioskId, 0, KioskTranslator
+                    .add(R.id.menu_tabs_group, kioskMenuItemId, 0, KioskTranslator
                             .getTranslatedKioskName(ks, this))
                     .setIcon(KioskTranslator.getKioskIcon(ks));
-            kioskId++;
+            kioskMenuItemId++;
         }
 
         drawerLayoutBinding.navigation.getMenu()
@@ -259,15 +270,8 @@ public class MainActivity extends AppCompatActivity {
     private boolean drawerItemSelected(final MenuItem item) {
         switch (item.getGroupId()) {
             case R.id.menu_services_group:
-                if (item.getItemId() == ServiceList.PeerTube.getServiceId()
-                        && DeviceUtils.isTv(getApplicationContext())
-                        && !item.isActionViewExpanded()) {
-                    ((Spinner) item.getActionView()).performClick();
-                    return true;
-                } else {
-                    changeService(item);
-                    break;
-                }
+                changeService(item);
+                break;
             case R.id.menu_tabs_group:
                 try {
                     tabSelected(item);
@@ -314,20 +318,16 @@ public class MainActivity extends AppCompatActivity {
                 NavigationHelper.openStatisticFragment(getSupportFragmentManager());
                 break;
             default:
-                final int currentServiceId = ServiceHelper.getSelectedServiceId(this);
-                final StreamingService service = NewPipe.getService(currentServiceId);
-                String serviceName = "";
-
-                int kioskId = 0;
-                for (final String ks : service.getKioskList().getAvailableKiosks()) {
-                    if (kioskId == item.getItemId()) {
-                        serviceName = ks;
+                final StreamingService currentService = ServiceHelper.getSelectedService(this);
+                int kioskMenuItemId = 0;
+                for (final String kioskId : currentService.getKioskList().getAvailableKiosks()) {
+                    if (kioskMenuItemId == item.getItemId()) {
+                        NavigationHelper.openKioskFragment(getSupportFragmentManager(),
+                                currentService.getServiceId(), kioskId);
+                        break;
                     }
-                    kioskId++;
+                    kioskMenuItemId++;
                 }
-
-                NavigationHelper.openKioskFragment(getSupportFragmentManager(), currentServiceId,
-                        serviceName);
                 break;
         }
     }
@@ -391,8 +391,8 @@ public class MainActivity extends AppCompatActivity {
                     .add(R.id.menu_services_group, s.getServiceId(), ORDER, title)
                     .setIcon(ServiceHelper.getIcon(s.getServiceId()));
 
-            // PeerTube specifics
-            if (s == ServiceList.PeerTube) {
+            // peertube specifics
+            if (s.getServiceId() == 3) {
                 enhancePeertubeMenu(menuItem);
             }
         }
@@ -558,14 +558,21 @@ public class MainActivity extends AppCompatActivity {
         // interacts with a fragment inside fragment_holder so all back presses should be
         // handled by it
         if (bottomSheetHiddenOrCollapsed()) {
-            final Fragment fragment = getSupportFragmentManager()
-                    .findFragmentById(R.id.fragment_holder);
+            final FragmentManager fm = getSupportFragmentManager();
+            final Fragment fragment = fm.findFragmentById(R.id.fragment_holder);
             // If current fragment implements BackPressable (i.e. can/wanna handle back press)
             // delegate the back press to it
             if (fragment instanceof BackPressable) {
                 if (((BackPressable) fragment).onBackPressed()) {
                     return;
                 }
+            } else if (fragment instanceof CommentRepliesFragment) {
+                // expand DetailsFragment if CommentRepliesFragment was opened
+                // to show the top level comments again
+                // Expand DetailsFragment if CommentRepliesFragment was opened
+                // and no other CommentRepliesFragments are on top of the back stack
+                // to show the top level comments again.
+                openDetailFragmentFromCommentReplies(fm, false);
             }
 
         } else {
@@ -641,10 +648,17 @@ public class MainActivity extends AppCompatActivity {
      * </pre>
      */
     private void onHomeButtonPressed() {
-        // If search fragment wasn't found in the backstack...
-        if (!NavigationHelper.tryGotoSearchFragment(getSupportFragmentManager())) {
-            // ...go to the main fragment
-            NavigationHelper.gotoMainFragment(getSupportFragmentManager());
+        final FragmentManager fm = getSupportFragmentManager();
+        final Fragment fragment = fm.findFragmentById(R.id.fragment_holder);
+
+        if (fragment instanceof CommentRepliesFragment) {
+            // Expand DetailsFragment if CommentRepliesFragment was opened
+            // and no other CommentRepliesFragments are on top of the back stack
+            // to show the top level comments again.
+            openDetailFragmentFromCommentReplies(fm, true);
+        } else if (!NavigationHelper.tryGotoSearchFragment(fm)) {
+            // If search fragment wasn't found in the backstack go to the main fragment
+            NavigationHelper.gotoMainFragment(fm);
         }
     }
 
@@ -840,6 +854,68 @@ public class MainActivity extends AppCompatActivity {
         }
     }
 
+    private void openDetailFragmentFromCommentReplies(
+            @NonNull final FragmentManager fm,
+            final boolean popBackStack
+    ) {
+        // obtain the name of the fragment under the replies fragment that's going to be popped
+        @Nullable final String fragmentUnderEntryName;
+        if (fm.getBackStackEntryCount() < 2) {
+            fragmentUnderEntryName = null;
+        } else {
+            fragmentUnderEntryName = fm.getBackStackEntryAt(fm.getBackStackEntryCount() - 2)
+                    .getName();
+        }
+
+        // the root comment is the comment for which the user opened the replies page
+        @Nullable final CommentRepliesFragment repliesFragment =
+                (CommentRepliesFragment) fm.findFragmentByTag(CommentRepliesFragment.TAG);
+        @Nullable final CommentsInfoItem rootComment =
+                repliesFragment == null ? null : repliesFragment.getCommentsInfoItem();
+
+        // sometimes this function pops the backstack, other times it's handled by the system
+        if (popBackStack) {
+            fm.popBackStackImmediate();
+        }
+
+        // only expand the bottom sheet back if there are no more nested comment replies fragments
+        // stacked under the one that is currently being popped
+        if (CommentRepliesFragment.TAG.equals(fragmentUnderEntryName)) {
+            return;
+        }
+
+        final BottomSheetBehavior<FragmentContainerView> behavior = BottomSheetBehavior
+                .from(mainBinding.fragmentPlayerHolder);
+        // do not return to the comment if the details fragment was closed
+        if (behavior.getState() == BottomSheetBehavior.STATE_HIDDEN) {
+            return;
+        }
+
+        // scroll to the root comment once the bottom sheet expansion animation is finished
+        behavior.addBottomSheetCallback(new BottomSheetBehavior.BottomSheetCallback() {
+            @Override
+            public void onStateChanged(@NonNull final View bottomSheet,
+                                       final int newState) {
+                if (newState == BottomSheetBehavior.STATE_EXPANDED) {
+                    final Fragment detailFragment = fm.findFragmentById(
+                            R.id.fragment_player_holder);
+                    if (detailFragment instanceof VideoDetailFragment && rootComment != null) {
+                        // should always be the case
+                        ((VideoDetailFragment) detailFragment).scrollToComment(rootComment);
+                    }
+                    behavior.removeBottomSheetCallback(this);
+                }
+            }
+
+            @Override
+            public void onSlide(@NonNull final View bottomSheet, final float slideOffset) {
+                // not needed, listener is removed once the sheet is expanded
+            }
+        });
+
+        behavior.setState(BottomSheetBehavior.STATE_EXPANDED);
+    }
+
     private boolean bottomSheetHiddenOrCollapsed() {
         final BottomSheetBehavior<FrameLayout> bottomSheetBehavior =
                 BottomSheetBehavior.from(mainBinding.fragmentPlayerHolder);

app/src/main/java/org/schabi/newpipe/NewPipeDatabase.java

@@ -7,6 +7,8 @@ import static org.schabi.newpipe.database.Migrations.MIGRATION_3_4;
 import static org.schabi.newpipe.database.Migrations.MIGRATION_4_5;
 import static org.schabi.newpipe.database.Migrations.MIGRATION_5_6;
 import static org.schabi.newpipe.database.Migrations.MIGRATION_6_7;
+import static org.schabi.newpipe.database.Migrations.MIGRATION_7_8;
+import static org.schabi.newpipe.database.Migrations.MIGRATION_8_9;
 
 import android.content.Context;
 import android.database.Cursor;
@@ -27,7 +29,7 @@ public final class NewPipeDatabase {
         return Room
                 .databaseBuilder(context.getApplicationContext(), AppDatabase.class, DATABASE_NAME)
                 .addMigrations(MIGRATION_1_2, MIGRATION_2_3, MIGRATION_3_4, MIGRATION_4_5,
-                        MIGRATION_5_6, MIGRATION_6_7)
+                        MIGRATION_5_6, MIGRATION_6_7, MIGRATION_7_8, MIGRATION_8_9)
                 .build();
     }
 

app/src/main/java/org/schabi/newpipe/NewVersionWorker.kt

@@ -20,9 +20,7 @@ import com.grack.nanojson.JsonParser
 import com.grack.nanojson.JsonParserException
 import org.schabi.newpipe.extractor.downloader.Response
 import org.schabi.newpipe.extractor.exceptions.ReCaptchaException
-import org.schabi.newpipe.util.ReleaseVersionUtil.coerceUpdateCheckExpiry
-import org.schabi.newpipe.util.ReleaseVersionUtil.isLastUpdateCheckExpired
-import org.schabi.newpipe.util.ReleaseVersionUtil.isReleaseApk
+import org.schabi.newpipe.util.ReleaseVersionUtil
 import java.io.IOException
 
 class NewVersionWorker(
@@ -84,7 +82,7 @@ class NewVersionWorker(
     @Throws(IOException::class, ReCaptchaException::class)
     private fun checkNewVersion() {
         // Check if the current apk is a github one or not.
-        if (!isReleaseApk()) {
+        if (!ReleaseVersionUtil.isReleaseApk) {
             return
         }
 
@@ -93,7 +91,7 @@ class NewVersionWorker(
             // Check if the last request has happened a certain time ago
             // to reduce the number of API requests.
             val expiry = prefs.getLong(applicationContext.getString(R.string.update_expiry_key), 0)
-            if (!isLastUpdateCheckExpired(expiry)) {
+            if (!ReleaseVersionUtil.isLastUpdateCheckExpired(expiry)) {
                 return
             }
         }
@@ -108,7 +106,7 @@ class NewVersionWorker(
         try {
             // Store a timestamp which needs to be exceeded,
             // before a new request to the API is made.
-            val newExpiry = coerceUpdateCheckExpiry(response.getHeader("expires"))
+            val newExpiry = ReleaseVersionUtil.coerceUpdateCheckExpiry(response.getHeader("expires"))
             prefs.edit {
                 putLong(applicationContext.getString(R.string.update_expiry_key), newExpiry)
             }
@@ -120,13 +118,13 @@ class NewVersionWorker(
 
         // Parse the json from the response.
         try {
-            val githubStableObject = JsonParser.`object`()
+            val newpipeVersionInfo = JsonParser.`object`()
                 .from(response.responseBody()).getObject("flavors")
-                .getObject("github").getObject("stable")
+                .getObject("newpipe")
 
-            val versionName = githubStableObject.getString("version")
-            val versionCode = githubStableObject.getInt("version_code")
-            val apkLocationUrl = githubStableObject.getString("apk")
+            val versionName = newpipeVersionInfo.getString("version")
+            val versionCode = newpipeVersionInfo.getInt("version_code")
+            val apkLocationUrl = newpipeVersionInfo.getString("apk")
             compareAppVersionAndShowNotification(versionName, apkLocationUrl, versionCode)
         } catch (e: JsonParserException) {
             // Most likely something is wrong in data received from NEWPIPE_API_URL.

app/src/main/java/org/schabi/newpipe/QueueItemMenuUtil.java

@@ -75,7 +75,7 @@ public final class QueueItemMenuUtil {
                     return true;
                 case R.id.menu_item_share:
                     shareText(context, item.getTitle(), item.getUrl(),
-                            item.getThumbnailUrl());
+                            item.getThumbnails());
                     return true;
                 case R.id.menu_item_download:
                     fetchStreamInfoAndSaveToDatabase(context, item.getServiceId(), item.getUrl(),

app/src/main/java/org/schabi/newpipe/RouterActivity.java

@@ -45,6 +45,7 @@ import org.schabi.newpipe.database.stream.model.StreamEntity;
 import org.schabi.newpipe.databinding.ListRadioIconItemBinding;
 import org.schabi.newpipe.databinding.SingleChoiceDialogViewBinding;
 import org.schabi.newpipe.download.DownloadDialog;
+import org.schabi.newpipe.download.LoadingDialog;
 import org.schabi.newpipe.error.ErrorInfo;
 import org.schabi.newpipe.error.ErrorUtil;
 import org.schabi.newpipe.error.ReCaptchaActivity;
@@ -64,6 +65,7 @@ import org.schabi.newpipe.extractor.exceptions.PrivateContentException;
 import org.schabi.newpipe.extractor.exceptions.ReCaptchaException;
 import org.schabi.newpipe.extractor.exceptions.SoundCloudGoPlusContentException;
 import org.schabi.newpipe.extractor.exceptions.YoutubeMusicPremiumContentException;
+import org.schabi.newpipe.extractor.linkhandler.ListLinkHandler;
 import org.schabi.newpipe.extractor.playlist.PlaylistInfo;
 import org.schabi.newpipe.extractor.stream.StreamInfo;
 import org.schabi.newpipe.ktx.ExceptionUtils;
@@ -71,10 +73,11 @@ import org.schabi.newpipe.local.dialog.PlaylistDialog;
 import org.schabi.newpipe.player.PlayerType;
 import org.schabi.newpipe.player.helper.PlayerHelper;
 import org.schabi.newpipe.player.helper.PlayerHolder;
-import org.schabi.newpipe.player.playqueue.ChannelPlayQueue;
+import org.schabi.newpipe.player.playqueue.ChannelTabPlayQueue;
 import org.schabi.newpipe.player.playqueue.PlayQueue;
 import org.schabi.newpipe.player.playqueue.PlaylistPlayQueue;
 import org.schabi.newpipe.player.playqueue.SinglePlayQueue;
+import org.schabi.newpipe.util.ChannelTabHelper;
 import org.schabi.newpipe.util.Constants;
 import org.schabi.newpipe.util.DeviceUtils;
 import org.schabi.newpipe.util.ExtractorHelper;
@@ -789,10 +792,10 @@ public class RouterActivity extends AppCompatActivity {
                     }
                 }
 
-            }, () -> {
+            }, () ->
                 // this branch is executed if there is no activity context
-                inFlight(false);
-            });
+                inFlight(false)
+            );
         }
 
         <T> Single<T> pleaseWait(final Single<T> single) {
@@ -812,19 +815,24 @@ public class RouterActivity extends AppCompatActivity {
         @SuppressLint("CheckResult")
         private void openDownloadDialog(final int currentServiceId, final String currentUrl) {
             inFlight(true);
+            final LoadingDialog loadingDialog = new LoadingDialog(R.string.loading_metadata_title);
+            loadingDialog.show(getParentFragmentManager(), "loadingDialog");
             disposables.add(ExtractorHelper.getStreamInfo(currentServiceId, currentUrl, true)
                     .subscribeOn(Schedulers.io())
                     .observeOn(AndroidSchedulers.mainThread())
                     .compose(this::pleaseWait)
                     .subscribe(result ->
                         runOnVisible(ctx -> {
+                            loadingDialog.dismiss();
                             final FragmentManager fm = ctx.getSupportFragmentManager();
                             final DownloadDialog downloadDialog = new DownloadDialog(ctx, result);
                             // dismiss listener to be handled by FragmentManager
                             downloadDialog.show(fm, "downloadDialog");
                         }
-                    ), throwable -> runOnVisible(ctx ->
-                            ((RouterActivity) ctx).showUnsupportedUrlDialog(currentUrl))));
+                        ), throwable -> runOnVisible(ctx -> {
+                        loadingDialog.dismiss();
+                        ((RouterActivity) ctx).showUnsupportedUrlDialog(currentUrl);
+                    })));
         }
 
         private void openAddToPlaylistDialog(final int currentServiceId, final String currentUrl) {
@@ -1016,7 +1024,16 @@ public class RouterActivity extends AppCompatActivity {
                     }
                     playQueue = new SinglePlayQueue((StreamInfo) info);
                 } else if (info instanceof ChannelInfo) {
-                    playQueue = new ChannelPlayQueue((ChannelInfo) info);
+                    final Optional<ListLinkHandler> playableTab = ((ChannelInfo) info).getTabs()
+                            .stream()
+                            .filter(ChannelTabHelper::isStreamsTab)
+                            .findFirst();
+
+                    if (playableTab.isPresent()) {
+                        playQueue = new ChannelTabPlayQueue(info.getServiceId(), playableTab.get());
+                    } else {
+                        return; // there is no playable tab
+                    }
                 } else if (info instanceof PlaylistInfo) {
                     playQueue = new PlaylistPlayQueue((PlaylistInfo) info);
                 } else {

app/src/main/java/org/schabi/newpipe/about/AboutActivity.kt

@@ -116,7 +116,7 @@ class AboutActivity : AppCompatActivity() {
         /**
          * List of all software components.
          */
-        private val SOFTWARE_COMPONENTS = arrayOf(
+        private val SOFTWARE_COMPONENTS = arrayListOf(
             SoftwareComponent(
                 "ACRA", "2013", "Kevin Gaudin",
                 "https://github.com/ACRA/acra", StandardLicenses.APACHE2

app/src/main/java/org/schabi/newpipe/about/LicenseFragment.kt

@@ -1,30 +1,40 @@
 package org.schabi.newpipe.about
 
 import android.os.Bundle
+import android.util.Base64
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import android.webkit.WebView
+import androidx.appcompat.app.AlertDialog
 import androidx.core.os.bundleOf
 import androidx.fragment.app.Fragment
+import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers
+import io.reactivex.rxjava3.core.Observable
 import io.reactivex.rxjava3.disposables.CompositeDisposable
+import io.reactivex.rxjava3.disposables.Disposable
+import io.reactivex.rxjava3.schedulers.Schedulers
+import org.schabi.newpipe.BuildConfig
 import org.schabi.newpipe.R
 import org.schabi.newpipe.databinding.FragmentLicensesBinding
 import org.schabi.newpipe.databinding.ItemSoftwareComponentBinding
+import org.schabi.newpipe.ktx.parcelableArrayList
+import org.schabi.newpipe.util.Localization
+import org.schabi.newpipe.util.external_communication.ShareUtils
 
 /**
  * Fragment containing the software licenses.
  */
 class LicenseFragment : Fragment() {
-    private lateinit var softwareComponents: Array<SoftwareComponent>
-    private var activeLicense: License? = null
+    private lateinit var softwareComponents: List<SoftwareComponent>
+    private var activeSoftwareComponent: SoftwareComponent? = null
     private val compositeDisposable = CompositeDisposable()
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
-        softwareComponents = arguments?.getParcelableArray(ARG_COMPONENTS) as Array<SoftwareComponent>
-        activeLicense = savedInstanceState?.getSerializable(LICENSE_KEY) as? License
-        // Sort components by name
-        softwareComponents.sortBy { it.name }
+        softwareComponents = arguments?.parcelableArrayList<SoftwareComponent>(ARG_COMPONENTS)!!
+            .sortedBy { it.name } // Sort components by name
+        activeSoftwareComponent = savedInstanceState?.getSerializable(SOFTWARE_COMPONENT_KEY) as? SoftwareComponent
     }
 
     override fun onDestroy() {
@@ -39,9 +49,8 @@ class LicenseFragment : Fragment() {
     ): View {
         val binding = FragmentLicensesBinding.inflate(inflater, container, false)
         binding.licensesAppReadLicense.setOnClickListener {
-            activeLicense = StandardLicenses.GPL3
             compositeDisposable.add(
-                showLicense(activity, StandardLicenses.GPL3)
+                showLicense(NEWPIPE_SOFTWARE_COMPONENT)
             )
         }
         for (component in softwareComponents) {
@@ -57,27 +66,72 @@ class LicenseFragment : Fragment() {
             val root: View = componentBinding.root
             root.tag = component
             root.setOnClickListener {
-                activeLicense = component.license
                 compositeDisposable.add(
-                    showLicense(activity, component)
+                    showLicense(component)
                 )
             }
             binding.licensesSoftwareComponents.addView(root)
             registerForContextMenu(root)
         }
-        activeLicense?.let { compositeDisposable.add(showLicense(activity, it)) }
+        activeSoftwareComponent?.let { compositeDisposable.add(showLicense(it)) }
         return binding.root
     }
 
     override fun onSaveInstanceState(savedInstanceState: Bundle) {
         super.onSaveInstanceState(savedInstanceState)
-        activeLicense?.let { savedInstanceState.putSerializable(LICENSE_KEY, it) }
+        activeSoftwareComponent?.let { savedInstanceState.putSerializable(SOFTWARE_COMPONENT_KEY, it) }
+    }
+
+    private fun showLicense(
+        softwareComponent: SoftwareComponent
+    ): Disposable {
+        return if (context == null) {
+            Disposable.empty()
+        } else {
+            val context = requireContext()
+            activeSoftwareComponent = softwareComponent
+            Observable.fromCallable { getFormattedLicense(context, softwareComponent.license) }
+                .subscribeOn(Schedulers.io())
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribe { formattedLicense ->
+                    val webViewData = Base64.encodeToString(
+                        formattedLicense.toByteArray(), Base64.NO_PADDING
+                    )
+                    val webView = WebView(context)
+                    webView.loadData(webViewData, "text/html; charset=UTF-8", "base64")
+
+                    Localization.assureCorrectAppLanguage(context)
+                    val builder = AlertDialog.Builder(requireContext())
+                        .setTitle(softwareComponent.name)
+                        .setView(webView)
+                        .setOnCancelListener { activeSoftwareComponent = null }
+                        .setOnDismissListener { activeSoftwareComponent = null }
+                        .setPositiveButton(R.string.done) { dialog, _ -> dialog.dismiss() }
+
+                    if (softwareComponent != NEWPIPE_SOFTWARE_COMPONENT) {
+                        builder.setNeutralButton(R.string.open_website_license) { _, _ ->
+                            ShareUtils.openUrlInApp(requireContext(), softwareComponent.link)
+                        }
+                    }
+
+                    builder.show()
+                }
+        }
     }
 
     companion object {
         private const val ARG_COMPONENTS = "components"
-        private const val LICENSE_KEY = "ACTIVE_LICENSE"
-        fun newInstance(softwareComponents: Array<SoftwareComponent>): LicenseFragment {
+        private const val SOFTWARE_COMPONENT_KEY = "ACTIVE_SOFTWARE_COMPONENT"
+        private val NEWPIPE_SOFTWARE_COMPONENT = SoftwareComponent(
+            "NewPipe",
+            "2014-2023",
+            "Team NewPipe",
+            "https://newpipe.net/",
+            StandardLicenses.GPL3,
+            BuildConfig.VERSION_NAME
+        )
+
+        fun newInstance(softwareComponents: ArrayList<SoftwareComponent>): LicenseFragment {
             val fragment = LicenseFragment()
             fragment.arguments = bundleOf(ARG_COMPONENTS to softwareComponents)
             return fragment

app/src/main/java/org/schabi/newpipe/about/LicenseFragmentHelper.kt

@@ -1,17 +1,8 @@
 package org.schabi.newpipe.about
 
 import android.content.Context
-import android.util.Base64
-import android.webkit.WebView
-import androidx.appcompat.app.AlertDialog
-import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers
-import io.reactivex.rxjava3.core.Observable
-import io.reactivex.rxjava3.disposables.Disposable
-import io.reactivex.rxjava3.schedulers.Schedulers
 import org.schabi.newpipe.R
-import org.schabi.newpipe.util.Localization
 import org.schabi.newpipe.util.ThemeHelper
-import org.schabi.newpipe.util.external_communication.ShareUtils
 import java.io.IOException
 
 /**
@@ -20,7 +11,7 @@ import java.io.IOException
  * @return String which contains a HTML formatted license page
  * styled according to the context's theme
  */
-private fun getFormattedLicense(context: Context, license: License): String {
+fun getFormattedLicense(context: Context, license: License): String {
     try {
         return context.assets.open(license.filename).bufferedReader().use { it.readText() }
             // split the HTML file and insert the stylesheet into the HEAD of the file
@@ -34,7 +25,7 @@ private fun getFormattedLicense(context: Context, license: License): String {
  * @param context the Android context
  * @return String which is a CSS stylesheet according to the context's theme
  */
-private fun getLicenseStylesheet(context: Context): String {
+fun getLicenseStylesheet(context: Context): String {
     val isLightTheme = ThemeHelper.isLightThemeSelected(context)
     val licenseBackgroundColor = getHexRGBColor(
         context, if (isLightTheme) R.color.light_license_background_color else R.color.dark_license_background_color
@@ -56,48 +47,6 @@ private fun getLicenseStylesheet(context: Context): String {
  * @param color   the color number from R.color
  * @return a six characters long String with hexadecimal RGB values
  */
-private fun getHexRGBColor(context: Context, color: Int): String {
+fun getHexRGBColor(context: Context, color: Int): String {
     return context.getString(color).substring(3)
 }
-
-fun showLicense(context: Context?, component: SoftwareComponent): Disposable {
-    return showLicense(context, component.license) {
-        setPositiveButton(R.string.dismiss) { dialog, _ ->
-            dialog.dismiss()
-        }
-        setNeutralButton(R.string.open_website_license) { _, _ ->
-            ShareUtils.openUrlInApp(context!!, component.link)
-        }
-    }
-}
-
-fun showLicense(context: Context?, license: License) = showLicense(context, license) {
-    setPositiveButton(R.string.ok) { dialog, _ -> dialog.dismiss() }
-}
-
-private fun showLicense(
-    context: Context?,
-    license: License,
-    block: AlertDialog.Builder.() -> AlertDialog.Builder
-): Disposable {
-    return if (context == null) {
-        Disposable.empty()
-    } else {
-        Observable.fromCallable { getFormattedLicense(context, license) }
-            .subscribeOn(Schedulers.io())
-            .observeOn(AndroidSchedulers.mainThread())
-            .subscribe { formattedLicense ->
-                val webViewData =
-                    Base64.encodeToString(formattedLicense.toByteArray(), Base64.NO_PADDING)
-                val webView = WebView(context)
-                webView.loadData(webViewData, "text/html; charset=UTF-8", "base64")
-
-                Localization.assureCorrectAppLanguage(context)
-                AlertDialog.Builder(context)
-                    .setTitle(license.name)
-                    .setView(webView)
-                    .block()
-                    .show()
-            }
-    }
-}

app/src/main/java/org/schabi/newpipe/about/SoftwareComponent.kt

@@ -2,6 +2,7 @@ package org.schabi.newpipe.about
 
 import android.os.Parcelable
 import kotlinx.parcelize.Parcelize
+import java.io.Serializable
 
 @Parcelize
 class SoftwareComponent
@@ -13,4 +14,4 @@ constructor(
     val link: String,
     val license: License,
     val version: String? = null
-) : Parcelable
+) : Parcelable, Serializable

app/src/main/java/org/schabi/newpipe/database/AppDatabase.java

@@ -1,6 +1,6 @@
 package org.schabi.newpipe.database;
 
-import static org.schabi.newpipe.database.Migrations.DB_VER_7;
+import static org.schabi.newpipe.database.Migrations.DB_VER_9;
 
 import androidx.room.Database;
 import androidx.room.RoomDatabase;
@@ -38,7 +38,7 @@ import org.schabi.newpipe.database.subscription.SubscriptionEntity;
                 FeedEntity.class, FeedGroupEntity.class, FeedGroupSubscriptionEntity.class,
                 FeedLastUpdatedEntity.class
         },
-        version = DB_VER_7
+        version = DB_VER_9
 )
 public abstract class AppDatabase extends RoomDatabase {
     public static final String DATABASE_NAME = "newpipe.db";

app/src/main/java/org/schabi/newpipe/database/Converters.kt

@@ -7,7 +7,7 @@ import java.time.Instant
 import java.time.OffsetDateTime
 import java.time.ZoneOffset
 
-object Converters {
+class Converters {
     /**
      * Convert a long value to a [OffsetDateTime].
      *
@@ -47,6 +47,6 @@ object Converters {
 
     @TypeConverter
     fun feedGroupIconOf(id: Int): FeedGroupIcon {
-        return FeedGroupIcon.values().first { it.id == id }
+        return FeedGroupIcon.entries.first { it.id == id }
     }
 }

app/src/main/java/org/schabi/newpipe/database/Migrations.java

@@ -25,6 +25,8 @@ public final class Migrations {
     public static final int DB_VER_5 = 5;
     public static final int DB_VER_6 = 6;
     public static final int DB_VER_7 = 7;
+    public static final int DB_VER_8 = 8;
+    public static final int DB_VER_9 = 9;
 
     private static final String TAG = Migrations.class.getName();
     public static final boolean DEBUG = MainActivity.DEBUG;
@@ -186,7 +188,7 @@ public final class Migrations {
         @Override
         public void migrate(@NonNull final SupportSQLiteDatabase database) {
             database.execSQL("ALTER TABLE `subscriptions` ADD COLUMN `notification_mode` "
-                     + "INTEGER NOT NULL DEFAULT 0");
+                    + "INTEGER NOT NULL DEFAULT 0");
         }
     };
 
@@ -235,6 +237,71 @@ public final class Migrations {
         }
     };
 
+    public static final Migration MIGRATION_7_8 = new Migration(DB_VER_7, DB_VER_8) {
+        @Override
+        public void migrate(@NonNull final SupportSQLiteDatabase database) {
+            database.execSQL("DELETE FROM search_history WHERE id NOT IN (SELECT id FROM (SELECT "
+                    + "MIN(id) as id FROM search_history GROUP BY trim(search), service_id ) tmp)");
+            database.execSQL("UPDATE search_history SET search = trim(search)");
+        }
+    };
+
+    public static final Migration MIGRATION_8_9 = new Migration(DB_VER_8, DB_VER_9) {
+        @Override
+        public void migrate(@NonNull final SupportSQLiteDatabase database) {
+            try {
+                database.beginTransaction();
+
+                // Update playlists.
+                // Create a temp table to initialize display_index.
+                database.execSQL("CREATE TABLE `playlists_tmp` "
+                        + "(`uid` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, "
+                        + "`name` TEXT, `is_thumbnail_permanent` INTEGER NOT NULL, "
+                        + "`thumbnail_stream_id` INTEGER NOT NULL, "
+                        + "`display_index` INTEGER NOT NULL)");
+                database.execSQL("INSERT INTO `playlists_tmp` "
+                        + "(`uid`, `name`, `is_thumbnail_permanent`, `thumbnail_stream_id`, "
+                        + "`display_index`) "
+                        + "SELECT `uid`, `name`, `is_thumbnail_permanent`, `thumbnail_stream_id`, "
+                        + "-1 "
+                        + "FROM `playlists`");
+
+                // Replace the old table, note that this also removes the index on the name which
+                // we don't need anymore.
+                database.execSQL("DROP TABLE `playlists`");
+                database.execSQL("ALTER TABLE `playlists_tmp` RENAME TO `playlists`");
+
+
+                // Update remote_playlists.
+                // Create a temp table to initialize display_index.
+                database.execSQL("CREATE TABLE `remote_playlists_tmp` "
+                        + "(`uid` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, "
+                        + "`service_id` INTEGER NOT NULL, `name` TEXT, `url` TEXT, "
+                        + "`thumbnail_url` TEXT, `uploader` TEXT, "
+                        + "`display_index` INTEGER NOT NULL,"
+                        + "`stream_count` INTEGER)");
+                database.execSQL("INSERT INTO `remote_playlists_tmp` (`uid`, `service_id`, "
+                        + "`name`, `url`, `thumbnail_url`, `uploader`, `display_index`, "
+                        + "`stream_count`)"
+                        + "SELECT `uid`, `service_id`, `name`, `url`, `thumbnail_url`, `uploader`, "
+                        + "-1, `stream_count` FROM `remote_playlists`");
+
+                // Replace the old table, note that this also removes the index on the name which
+                // we don't need anymore.
+                database.execSQL("DROP TABLE `remote_playlists`");
+                database.execSQL("ALTER TABLE `remote_playlists_tmp` RENAME TO `remote_playlists`");
+
+                // Create index on the new table.
+                database.execSQL("CREATE UNIQUE INDEX `index_remote_playlists_service_id_url` "
+                        + "ON `remote_playlists` (`service_id`, `url`)");
+
+                database.setTransactionSuccessful();
+            } finally {
+                database.endTransaction();
+            }
+        }
+    };
+
     private Migrations() {
     }
 }

app/src/main/java/org/schabi/newpipe/database/feed/dao/FeedDAO.kt

@@ -93,18 +93,30 @@ abstract class FeedDAO {
         uploadDateBefore: OffsetDateTime?
     ): Maybe<List<StreamWithState>>
 
+    /**
+     * Remove links to streams that are older than the given date
+     * **but keep at least one stream per uploader**.
+     *
+     * One stream per uploader is kept because it is needed as reference
+     * when fetching new streams to check if they are new or not.
+     * @param offsetDateTime the newest date to keep, older streams are removed
+     */
     @Query(
         """
-        DELETE FROM feed WHERE
-
-        feed.stream_id IN (
-            SELECT s.uid FROM streams s
-
-            INNER JOIN feed f
-            ON s.uid = f.stream_id
-
-            WHERE s.upload_date < :offsetDateTime
-        )
+        DELETE FROM feed
+        WHERE feed.stream_id IN (SELECT uid from (
+              SELECT s.uid,
+              (SELECT MAX(upload_date)
+                    FROM streams s1
+                    INNER JOIN feed f1
+                    ON s1.uid = f1.stream_id
+                    WHERE f1.subscription_id = f.subscription_id) max_upload_date
+              FROM streams s
+              INNER JOIN feed f
+              ON s.uid = f.stream_id
+        
+              WHERE s.upload_date < :offsetDateTime
+              AND   s.upload_date <> max_upload_date))
         """
     )
     abstract fun unlinkStreamsOlderThan(offsetDateTime: OffsetDateTime)

app/src/main/java/org/schabi/newpipe/database/feed/model/FeedGroupSubscriptionEntity.kt

@@ -3,7 +3,6 @@ package org.schabi.newpipe.database.feed.model
 import androidx.room.ColumnInfo
 import androidx.room.Entity
 import androidx.room.ForeignKey
-import androidx.room.ForeignKey.CASCADE
 import androidx.room.Index
 import org.schabi.newpipe.database.feed.model.FeedGroupSubscriptionEntity.Companion.FEED_GROUP_SUBSCRIPTION_TABLE
 import org.schabi.newpipe.database.feed.model.FeedGroupSubscriptionEntity.Companion.GROUP_ID
@@ -19,14 +18,14 @@ import org.schabi.newpipe.database.subscription.SubscriptionEntity
             entity = FeedGroupEntity::class,
             parentColumns = [FeedGroupEntity.ID],
             childColumns = [GROUP_ID],
-            onDelete = CASCADE, onUpdate = CASCADE, deferred = true
+            onDelete = ForeignKey.CASCADE, onUpdate = ForeignKey.CASCADE, deferred = true
         ),
 
         ForeignKey(
             entity = SubscriptionEntity::class,
             parentColumns = [SubscriptionEntity.SUBSCRIPTION_UID],
             childColumns = [SUBSCRIPTION_ID],
-            onDelete = CASCADE, onUpdate = CASCADE, deferred = true
+            onDelete = ForeignKey.CASCADE, onUpdate = ForeignKey.CASCADE, deferred = true
         )
     ]
 )

app/src/main/java/org/schabi/newpipe/database/playlist/PlaylistDuplicatesEntry.java

@@ -13,12 +13,17 @@ public class PlaylistDuplicatesEntry extends PlaylistMetadataEntry {
     @ColumnInfo(name = PLAYLIST_TIMES_STREAM_IS_CONTAINED)
     public final long timesStreamIsContained;
 
+    @SuppressWarnings("checkstyle:ParameterNumber")
     public PlaylistDuplicatesEntry(final long uid,
                                    final String name,
                                    final String thumbnailUrl,
+                                   final boolean isThumbnailPermanent,
+                                   final long thumbnailStreamId,
+                                   final long displayIndex,
                                    final long streamCount,
                                    final long timesStreamIsContained) {
-        super(uid, name, thumbnailUrl, streamCount);
+        super(uid, name, thumbnailUrl, isThumbnailPermanent, thumbnailStreamId, displayIndex,
+                streamCount);
         this.timesStreamIsContained = timesStreamIsContained;
     }
 }

app/src/main/java/org/schabi/newpipe/database/playlist/PlaylistLocalItem.java

@@ -1,22 +1,13 @@
 package org.schabi.newpipe.database.playlist;
 
 import org.schabi.newpipe.database.LocalItem;
-import org.schabi.newpipe.database.playlist.model.PlaylistRemoteEntity;
-
-import java.util.Comparator;
-import java.util.List;
-import java.util.stream.Collectors;
-import java.util.stream.Stream;
 
 public interface PlaylistLocalItem extends LocalItem {
     String getOrderingName();
 
-    static List<PlaylistLocalItem> merge(
-            final List<PlaylistMetadataEntry> localPlaylists,
-            final List<PlaylistRemoteEntity> remotePlaylists) {
-        return Stream.concat(localPlaylists.stream(), remotePlaylists.stream())
-                .sorted(Comparator.comparing(PlaylistLocalItem::getOrderingName,
-                        Comparator.nullsLast(String.CASE_INSENSITIVE_ORDER)))
-                .collect(Collectors.toList());
-    }
+    long getDisplayIndex();
+
+    long getUid();
+
+    void setDisplayIndex(long displayIndex);
 }

app/src/main/java/org/schabi/newpipe/database/playlist/PlaylistMetadataEntry.java

@@ -2,27 +2,40 @@ package org.schabi.newpipe.database.playlist;
 
 import androidx.room.ColumnInfo;
 
+import static org.schabi.newpipe.database.playlist.model.PlaylistEntity.PLAYLIST_DISPLAY_INDEX;
 import static org.schabi.newpipe.database.playlist.model.PlaylistEntity.PLAYLIST_ID;
 import static org.schabi.newpipe.database.playlist.model.PlaylistEntity.PLAYLIST_NAME;
+import static org.schabi.newpipe.database.playlist.model.PlaylistEntity.PLAYLIST_THUMBNAIL_PERMANENT;
+import static org.schabi.newpipe.database.playlist.model.PlaylistEntity.PLAYLIST_THUMBNAIL_STREAM_ID;
 import static org.schabi.newpipe.database.playlist.model.PlaylistEntity.PLAYLIST_THUMBNAIL_URL;
 
 public class PlaylistMetadataEntry implements PlaylistLocalItem {
     public static final String PLAYLIST_STREAM_COUNT = "streamCount";
 
     @ColumnInfo(name = PLAYLIST_ID)
-    public final long uid;
+    private final long uid;
     @ColumnInfo(name = PLAYLIST_NAME)
     public final String name;
+    @ColumnInfo(name = PLAYLIST_THUMBNAIL_PERMANENT)
+    private final boolean isThumbnailPermanent;
+    @ColumnInfo(name = PLAYLIST_THUMBNAIL_STREAM_ID)
+    private final long thumbnailStreamId;
     @ColumnInfo(name = PLAYLIST_THUMBNAIL_URL)
     public final String thumbnailUrl;
+    @ColumnInfo(name = PLAYLIST_DISPLAY_INDEX)
+    private long displayIndex;
     @ColumnInfo(name = PLAYLIST_STREAM_COUNT)
     public final long streamCount;
 
     public PlaylistMetadataEntry(final long uid, final String name, final String thumbnailUrl,
-                                 final long streamCount) {
+                                 final boolean isThumbnailPermanent, final long thumbnailStreamId,
+                                 final long displayIndex, final long streamCount) {
         this.uid = uid;
         this.name = name;
         this.thumbnailUrl = thumbnailUrl;
+        this.isThumbnailPermanent = isThumbnailPermanent;
+        this.thumbnailStreamId = thumbnailStreamId;
+        this.displayIndex = displayIndex;
         this.streamCount = streamCount;
     }
 
@@ -35,4 +48,27 @@ public class PlaylistMetadataEntry implements PlaylistLocalItem {
     public String getOrderingName() {
         return name;
     }
+
+    public boolean isThumbnailPermanent() {
+        return isThumbnailPermanent;
+    }
+
+    public long getThumbnailStreamId() {
+        return thumbnailStreamId;
+    }
+
+    @Override
+    public long getDisplayIndex() {
+        return displayIndex;
+    }
+
+    @Override
+    public long getUid() {
+        return uid;
+    }
+
+    @Override
+    public void setDisplayIndex(final long displayIndex) {
+        this.displayIndex = displayIndex;
+    }
 }

app/src/main/java/org/schabi/newpipe/database/playlist/PlaylistStreamEntry.kt

@@ -7,6 +7,7 @@ import org.schabi.newpipe.database.playlist.model.PlaylistStreamEntity
 import org.schabi.newpipe.database.stream.model.StreamEntity
 import org.schabi.newpipe.database.stream.model.StreamStateEntity
 import org.schabi.newpipe.extractor.stream.StreamInfoItem
+import org.schabi.newpipe.util.image.ImageStrategy
 
 data class PlaylistStreamEntry(
     @Embedded
@@ -28,7 +29,7 @@ data class PlaylistStreamEntry(
         item.duration = streamEntity.duration
         item.uploaderName = streamEntity.uploader
         item.uploaderUrl = streamEntity.uploaderUrl
-        item.thumbnailUrl = streamEntity.thumbnailUrl
+        item.thumbnails = ImageStrategy.dbUrlToImageList(streamEntity.thumbnailUrl)
 
         return item
     }

app/src/main/java/org/schabi/newpipe/database/playlist/dao/PlaylistDAO.java

@@ -2,6 +2,7 @@ package org.schabi.newpipe.database.playlist.dao;
 
 import androidx.room.Dao;
 import androidx.room.Query;
+import androidx.room.Transaction;
 
 import org.schabi.newpipe.database.BasicDAO;
 import org.schabi.newpipe.database.playlist.model.PlaylistEntity;
@@ -36,4 +37,17 @@ public interface PlaylistDAO extends BasicDAO<PlaylistEntity> {
 
     @Query("SELECT COUNT(*) FROM " + PLAYLIST_TABLE)
     Flowable<Long> getCount();
+
+    @Transaction
+    default long upsertPlaylist(final PlaylistEntity playlist) {
+        final long playlistId = playlist.getUid();
+
+        if (playlistId == -1) {
+            // This situation is probably impossible.
+            return insert(playlist);
+        } else {
+            update(playlist);
+            return playlistId;
+        }
+    }
 }

app/src/main/java/org/schabi/newpipe/database/playlist/dao/PlaylistRemoteDAO.java

@@ -11,6 +11,7 @@ import java.util.List;
 
 import io.reactivex.rxjava3.core.Flowable;
 
+import static org.schabi.newpipe.database.playlist.model.PlaylistRemoteEntity.REMOTE_PLAYLIST_DISPLAY_INDEX;
 import static org.schabi.newpipe.database.playlist.model.PlaylistRemoteEntity.REMOTE_PLAYLIST_ID;
 import static org.schabi.newpipe.database.playlist.model.PlaylistRemoteEntity.REMOTE_PLAYLIST_SERVICE_ID;
 import static org.schabi.newpipe.database.playlist.model.PlaylistRemoteEntity.REMOTE_PLAYLIST_TABLE;
@@ -31,10 +32,18 @@ public interface PlaylistRemoteDAO extends BasicDAO<PlaylistRemoteEntity> {
             + " WHERE " + REMOTE_PLAYLIST_SERVICE_ID + " = :serviceId")
     Flowable<List<PlaylistRemoteEntity>> listByService(int serviceId);
 
+    @Query("SELECT * FROM " + REMOTE_PLAYLIST_TABLE + " WHERE "
+            + REMOTE_PLAYLIST_ID + " = :playlistId")
+    Flowable<List<PlaylistRemoteEntity>> getPlaylist(long playlistId);
+
     @Query("SELECT * FROM " + REMOTE_PLAYLIST_TABLE + " WHERE "
             + REMOTE_PLAYLIST_URL + " = :url AND " + REMOTE_PLAYLIST_SERVICE_ID + " = :serviceId")
     Flowable<List<PlaylistRemoteEntity>> getPlaylist(long serviceId, String url);
 
+    @Query("SELECT * FROM " + REMOTE_PLAYLIST_TABLE
+     + " ORDER BY " + REMOTE_PLAYLIST_DISPLAY_INDEX)
+    Flowable<List<PlaylistRemoteEntity>> getPlaylists();
+
     @Query("SELECT " + REMOTE_PLAYLIST_ID + " FROM " + REMOTE_PLAYLIST_TABLE
             + " WHERE " + REMOTE_PLAYLIST_URL + " = :url "
             + "AND " + REMOTE_PLAYLIST_SERVICE_ID + " = :serviceId")

app/src/main/java/org/schabi/newpipe/database/playlist/dao/PlaylistStreamDAO.java

@@ -18,10 +18,12 @@ import io.reactivex.rxjava3.core.Flowable;
 
 import static org.schabi.newpipe.database.playlist.PlaylistDuplicatesEntry.PLAYLIST_TIMES_STREAM_IS_CONTAINED;
 import static org.schabi.newpipe.database.playlist.PlaylistMetadataEntry.PLAYLIST_STREAM_COUNT;
+import static org.schabi.newpipe.database.playlist.model.PlaylistEntity.PLAYLIST_DISPLAY_INDEX;
 import static org.schabi.newpipe.database.playlist.model.PlaylistEntity.DEFAULT_THUMBNAIL;
 import static org.schabi.newpipe.database.playlist.model.PlaylistEntity.PLAYLIST_ID;
 import static org.schabi.newpipe.database.playlist.model.PlaylistEntity.PLAYLIST_NAME;
 import static org.schabi.newpipe.database.playlist.model.PlaylistEntity.PLAYLIST_TABLE;
+import static org.schabi.newpipe.database.playlist.model.PlaylistEntity.PLAYLIST_THUMBNAIL_PERMANENT;
 import static org.schabi.newpipe.database.playlist.model.PlaylistEntity.PLAYLIST_THUMBNAIL_STREAM_ID;
 import static org.schabi.newpipe.database.playlist.model.PlaylistEntity.PLAYLIST_THUMBNAIL_URL;
 import static org.schabi.newpipe.database.playlist.model.PlaylistStreamEntity.JOIN_INDEX;
@@ -91,7 +93,9 @@ public interface PlaylistStreamDAO extends BasicDAO<PlaylistStreamEntity> {
     Flowable<List<PlaylistStreamEntry>> getOrderedStreamsOf(long playlistId);
 
     @Transaction
-    @Query("SELECT " + PLAYLIST_ID + ", " + PLAYLIST_NAME + ","
+    @Query("SELECT " + PLAYLIST_ID + ", " + PLAYLIST_NAME + ", "
+            + PLAYLIST_THUMBNAIL_PERMANENT + ", " + PLAYLIST_THUMBNAIL_STREAM_ID + ", "
+            + PLAYLIST_DISPLAY_INDEX + ", "
 
             + " CASE WHEN " + PLAYLIST_THUMBNAIL_STREAM_ID + " = "
             + PlaylistEntity.DEFAULT_THUMBNAIL_ID + " THEN " + "'" + DEFAULT_THUMBNAIL + "'"
@@ -105,7 +109,7 @@ public interface PlaylistStreamDAO extends BasicDAO<PlaylistStreamEntity> {
             + " LEFT JOIN " + PLAYLIST_STREAM_JOIN_TABLE
             + " ON " + PLAYLIST_TABLE + "." + PLAYLIST_ID + " = " + JOIN_PLAYLIST_ID
             + " GROUP BY " + PLAYLIST_ID
-            + " ORDER BY " + PLAYLIST_NAME + " COLLATE NOCASE ASC")
+            + " ORDER BY " + PLAYLIST_DISPLAY_INDEX)
     Flowable<List<PlaylistMetadataEntry>> getPlaylistMetadata();
 
     @RewriteQueriesToDropUnusedColumns
@@ -126,8 +130,9 @@ public interface PlaylistStreamDAO extends BasicDAO<PlaylistStreamEntity> {
     Flowable<List<PlaylistStreamEntry>> getStreamsWithoutDuplicates(long playlistId);
 
     @Transaction
-    @Query("SELECT " + PLAYLIST_TABLE + "." + PLAYLIST_ID + ", "
-            + PLAYLIST_NAME + ", "
+    @Query("SELECT " + PLAYLIST_TABLE + "." + PLAYLIST_ID + ", " + PLAYLIST_NAME + ", "
+            + PLAYLIST_THUMBNAIL_PERMANENT + ", " + PLAYLIST_THUMBNAIL_STREAM_ID + ", "
+            + PLAYLIST_DISPLAY_INDEX + ", "
 
             + " CASE WHEN " + PLAYLIST_THUMBNAIL_STREAM_ID + " = "
             + PlaylistEntity.DEFAULT_THUMBNAIL_ID + " THEN " + "'" + DEFAULT_THUMBNAIL + "'"
@@ -149,6 +154,6 @@ public interface PlaylistStreamDAO extends BasicDAO<PlaylistStreamEntity> {
             + " AND :streamUrl = :streamUrl"
 
             + " GROUP BY " + JOIN_PLAYLIST_ID
-            + " ORDER BY " + PLAYLIST_NAME + " COLLATE NOCASE ASC")
+            + " ORDER BY " + PLAYLIST_DISPLAY_INDEX)
     Flowable<List<PlaylistDuplicatesEntry>> getPlaylistDuplicatesMetadata(String streamUrl);
 }

app/src/main/java/org/schabi/newpipe/database/playlist/model/PlaylistEntity.java

@@ -2,16 +2,15 @@ package org.schabi.newpipe.database.playlist.model;
 
 import androidx.room.ColumnInfo;
 import androidx.room.Entity;
-import androidx.room.Index;
+import androidx.room.Ignore;
 import androidx.room.PrimaryKey;
 
-import static org.schabi.newpipe.database.playlist.model.PlaylistEntity.PLAYLIST_NAME;
 import static org.schabi.newpipe.database.playlist.model.PlaylistEntity.PLAYLIST_TABLE;
 
 import org.schabi.newpipe.R;
+import org.schabi.newpipe.database.playlist.PlaylistMetadataEntry;
 
-@Entity(tableName = PLAYLIST_TABLE,
-        indices = {@Index(value = {PLAYLIST_NAME})})
+@Entity(tableName = PLAYLIST_TABLE)
 public class PlaylistEntity {
 
     public static final String DEFAULT_THUMBNAIL = "drawable://"
@@ -22,6 +21,7 @@ public class PlaylistEntity {
     public static final String PLAYLIST_ID = "uid";
     public static final String PLAYLIST_NAME = "name";
     public static final String PLAYLIST_THUMBNAIL_URL = "thumbnail_url";
+    public static final String PLAYLIST_DISPLAY_INDEX = "display_index";
     public static final String PLAYLIST_THUMBNAIL_PERMANENT = "is_thumbnail_permanent";
     public static final String PLAYLIST_THUMBNAIL_STREAM_ID = "thumbnail_stream_id";
 
@@ -38,11 +38,24 @@ public class PlaylistEntity {
     @ColumnInfo(name = PLAYLIST_THUMBNAIL_STREAM_ID)
     private long thumbnailStreamId;
 
+    @ColumnInfo(name = PLAYLIST_DISPLAY_INDEX)
+    private long displayIndex;
+
     public PlaylistEntity(final String name, final boolean isThumbnailPermanent,
-                          final long thumbnailStreamId) {
+                          final long thumbnailStreamId, final long displayIndex) {
         this.name = name;
         this.isThumbnailPermanent = isThumbnailPermanent;
         this.thumbnailStreamId = thumbnailStreamId;
+        this.displayIndex = displayIndex;
+    }
+
+    @Ignore
+    public PlaylistEntity(final PlaylistMetadataEntry item) {
+        this.uid = item.getUid();
+        this.name = item.name;
+        this.isThumbnailPermanent = item.isThumbnailPermanent();
+        this.thumbnailStreamId = item.getThumbnailStreamId();
+        this.displayIndex = item.getDisplayIndex();
     }
 
     public long getUid() {
@@ -77,4 +90,11 @@ public class PlaylistEntity {
         this.isThumbnailPermanent = isThumbnailSet;
     }
 
+    public long getDisplayIndex() {
+        return displayIndex;
+    }
+
+    public void setDisplayIndex(final long displayIndex) {
+        this.displayIndex = displayIndex;
+    }
 }

app/src/main/java/org/schabi/newpipe/database/playlist/model/PlaylistRemoteEntity.java

@@ -11,6 +11,7 @@ import androidx.room.PrimaryKey;
 import org.schabi.newpipe.database.playlist.PlaylistLocalItem;
 import org.schabi.newpipe.extractor.playlist.PlaylistInfo;
 import org.schabi.newpipe.util.Constants;
+import org.schabi.newpipe.util.image.ImageStrategy;
 
 import static org.schabi.newpipe.database.LocalItem.LocalItemType.PLAYLIST_REMOTE_ITEM;
 import static org.schabi.newpipe.database.playlist.model.PlaylistRemoteEntity.REMOTE_PLAYLIST_NAME;
@@ -20,7 +21,6 @@ import static org.schabi.newpipe.database.playlist.model.PlaylistRemoteEntity.RE
 
 @Entity(tableName = REMOTE_PLAYLIST_TABLE,
         indices = {
-                @Index(value = {REMOTE_PLAYLIST_NAME}),
                 @Index(value = {REMOTE_PLAYLIST_SERVICE_ID, REMOTE_PLAYLIST_URL}, unique = true)
         })
 public class PlaylistRemoteEntity implements PlaylistLocalItem {
@@ -31,6 +31,7 @@ public class PlaylistRemoteEntity implements PlaylistLocalItem {
     public static final String REMOTE_PLAYLIST_URL = "url";
     public static final String REMOTE_PLAYLIST_THUMBNAIL_URL = "thumbnail_url";
     public static final String REMOTE_PLAYLIST_UPLOADER_NAME = "uploader";
+    public static final String REMOTE_PLAYLIST_DISPLAY_INDEX = "display_index";
     public static final String REMOTE_PLAYLIST_STREAM_COUNT = "stream_count";
 
     @PrimaryKey(autoGenerate = true)
@@ -52,6 +53,9 @@ public class PlaylistRemoteEntity implements PlaylistLocalItem {
     @ColumnInfo(name = REMOTE_PLAYLIST_UPLOADER_NAME)
     private String uploader;
 
+    @ColumnInfo(name = REMOTE_PLAYLIST_DISPLAY_INDEX)
+    private long displayIndex = -1; // Make sure the new item is on the top
+
     @ColumnInfo(name = REMOTE_PLAYLIST_STREAM_COUNT)
     private Long streamCount;
 
@@ -66,11 +70,25 @@ public class PlaylistRemoteEntity implements PlaylistLocalItem {
         this.streamCount = streamCount;
     }
 
+    @Ignore
+    public PlaylistRemoteEntity(final int serviceId, final String name, final String url,
+                                final String thumbnailUrl, final String uploader,
+                                final long displayIndex, final Long streamCount) {
+        this.serviceId = serviceId;
+        this.name = name;
+        this.url = url;
+        this.thumbnailUrl = thumbnailUrl;
+        this.uploader = uploader;
+        this.displayIndex = displayIndex;
+        this.streamCount = streamCount;
+    }
+
     @Ignore
     public PlaylistRemoteEntity(final PlaylistInfo info) {
         this(info.getServiceId(), info.getName(), info.getUrl(),
-                info.getThumbnailUrl() == null
-                        ? info.getUploaderAvatarUrl() : info.getThumbnailUrl(),
+                // use uploader avatar when no thumbnail is available
+                ImageStrategy.imageListToDbUrl(info.getThumbnails().isEmpty()
+                        ? info.getUploaderAvatars() : info.getThumbnails()),
                 info.getUploaderName(), info.getStreamCount());
     }
 
@@ -84,10 +102,14 @@ public class PlaylistRemoteEntity implements PlaylistLocalItem {
                 && getStreamCount() == info.getStreamCount()
                 && TextUtils.equals(getName(), info.getName())
                 && TextUtils.equals(getUrl(), info.getUrl())
-                && TextUtils.equals(getThumbnailUrl(), info.getThumbnailUrl())
+                // we want to update the local playlist data even when either the remote thumbnail
+                // URL changes, or the preferred image quality setting is changed by the user
+                && TextUtils.equals(getThumbnailUrl(),
+                ImageStrategy.imageListToDbUrl(info.getThumbnails()))
                 && TextUtils.equals(getUploader(), info.getUploaderName());
     }
 
+    @Override
     public long getUid() {
         return uid;
     }
@@ -136,6 +158,16 @@ public class PlaylistRemoteEntity implements PlaylistLocalItem {
         this.uploader = uploader;
     }
 
+    @Override
+    public long getDisplayIndex() {
+        return displayIndex;
+    }
+
+    @Override
+    public void setDisplayIndex(final long displayIndex) {
+        this.displayIndex = displayIndex;
+    }
+
     public Long getStreamCount() {
         return streamCount;
     }

app/src/main/java/org/schabi/newpipe/database/stream/StreamStatisticsEntry.kt

@@ -7,6 +7,7 @@ import org.schabi.newpipe.database.history.model.StreamHistoryEntity
 import org.schabi.newpipe.database.stream.model.StreamEntity
 import org.schabi.newpipe.database.stream.model.StreamStateEntity.STREAM_PROGRESS_MILLIS
 import org.schabi.newpipe.extractor.stream.StreamInfoItem
+import org.schabi.newpipe.util.image.ImageStrategy
 import java.time.OffsetDateTime
 
 class StreamStatisticsEntry(
@@ -30,7 +31,7 @@ class StreamStatisticsEntry(
         item.duration = streamEntity.duration
         item.uploaderName = streamEntity.uploader
         item.uploaderUrl = streamEntity.uploaderUrl
-        item.thumbnailUrl = streamEntity.thumbnailUrl
+        item.thumbnails = ImageStrategy.dbUrlToImageList(streamEntity.thumbnailUrl)
 
         return item
     }

app/src/main/java/org/schabi/newpipe/database/stream/model/StreamEntity.kt

@@ -13,6 +13,7 @@ import org.schabi.newpipe.extractor.stream.StreamInfo
 import org.schabi.newpipe.extractor.stream.StreamInfoItem
 import org.schabi.newpipe.extractor.stream.StreamType
 import org.schabi.newpipe.player.playqueue.PlayQueueItem
+import org.schabi.newpipe.util.image.ImageStrategy
 import java.io.Serializable
 import java.time.OffsetDateTime
 
@@ -67,7 +68,8 @@ data class StreamEntity(
     constructor(item: StreamInfoItem) : this(
         serviceId = item.serviceId, url = item.url, title = item.name,
         streamType = item.streamType, duration = item.duration, uploader = item.uploaderName,
-        uploaderUrl = item.uploaderUrl, thumbnailUrl = item.thumbnailUrl, viewCount = item.viewCount,
+        uploaderUrl = item.uploaderUrl,
+        thumbnailUrl = ImageStrategy.imageListToDbUrl(item.thumbnails), viewCount = item.viewCount,
         textualUploadDate = item.textualUploadDate, uploadDate = item.uploadDate?.offsetDateTime(),
         isUploadDateApproximation = item.uploadDate?.isApproximation
     )
@@ -76,7 +78,8 @@ data class StreamEntity(
     constructor(info: StreamInfo) : this(
         serviceId = info.serviceId, url = info.url, title = info.name,
         streamType = info.streamType, duration = info.duration, uploader = info.uploaderName,
-        uploaderUrl = info.uploaderUrl, thumbnailUrl = info.thumbnailUrl, viewCount = info.viewCount,
+        uploaderUrl = info.uploaderUrl,
+        thumbnailUrl = ImageStrategy.imageListToDbUrl(info.thumbnails), viewCount = info.viewCount,
         textualUploadDate = info.textualUploadDate, uploadDate = info.uploadDate?.offsetDateTime(),
         isUploadDateApproximation = info.uploadDate?.isApproximation
     )
@@ -85,7 +88,8 @@ data class StreamEntity(
     constructor(item: PlayQueueItem) : this(
         serviceId = item.serviceId, url = item.url, title = item.title,
         streamType = item.streamType, duration = item.duration, uploader = item.uploader,
-        uploaderUrl = item.uploaderUrl, thumbnailUrl = item.thumbnailUrl
+        uploaderUrl = item.uploaderUrl,
+        thumbnailUrl = ImageStrategy.imageListToDbUrl(item.thumbnails)
     )
 
     fun toStreamInfoItem(): StreamInfoItem {
@@ -93,7 +97,7 @@ data class StreamEntity(
         item.duration = duration
         item.uploaderName = uploader
         item.uploaderUrl = uploaderUrl
-        item.thumbnailUrl = thumbnailUrl
+        item.thumbnails = ImageStrategy.dbUrlToImageList(thumbnailUrl)
 
         if (viewCount != null) item.viewCount = viewCount as Long
         item.textualUploadDate = textualUploadDate

app/src/main/java/org/schabi/newpipe/database/subscription/SubscriptionEntity.java

@@ -1,6 +1,7 @@
 package org.schabi.newpipe.database.subscription;
 
 import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 import androidx.room.ColumnInfo;
 import androidx.room.Entity;
 import androidx.room.Ignore;
@@ -10,6 +11,7 @@ import androidx.room.PrimaryKey;
 import org.schabi.newpipe.extractor.channel.ChannelInfo;
 import org.schabi.newpipe.extractor.channel.ChannelInfoItem;
 import org.schabi.newpipe.util.Constants;
+import org.schabi.newpipe.util.image.ImageStrategy;
 
 import static org.schabi.newpipe.database.subscription.SubscriptionEntity.SUBSCRIPTION_SERVICE_ID;
 import static org.schabi.newpipe.database.subscription.SubscriptionEntity.SUBSCRIPTION_TABLE;
@@ -57,8 +59,8 @@ public class SubscriptionEntity {
         final SubscriptionEntity result = new SubscriptionEntity();
         result.setServiceId(info.getServiceId());
         result.setUrl(info.getUrl());
-        result.setData(info.getName(), info.getAvatarUrl(), info.getDescription(),
-                info.getSubscriberCount());
+        result.setData(info.getName(), ImageStrategy.imageListToDbUrl(info.getAvatars()),
+                info.getDescription(), info.getSubscriberCount());
         return result;
     }
 
@@ -94,11 +96,12 @@ public class SubscriptionEntity {
         this.name = name;
     }
 
+    @Nullable
     public String getAvatarUrl() {
         return avatarUrl;
     }
 
-    public void setAvatarUrl(final String avatarUrl) {
+    public void setAvatarUrl(@Nullable final String avatarUrl) {
         this.avatarUrl = avatarUrl;
     }
 
@@ -138,7 +141,7 @@ public class SubscriptionEntity {
     @Ignore
     public ChannelInfoItem toChannelInfoItem() {
         final ChannelInfoItem item = new ChannelInfoItem(getServiceId(), getUrl(), getName());
-        item.setThumbnailUrl(getAvatarUrl());
+        item.setThumbnails(ImageStrategy.dbUrlToImageList(getAvatarUrl()));
         item.setSubscriberCount(getSubscriberCount());
         item.setDescription(getDescription());
         return item;

app/src/main/java/org/schabi/newpipe/download/DownloadDialog.java

@@ -7,8 +7,6 @@ import static org.schabi.newpipe.util.Localization.assureCorrectAppLanguage;
 import android.app.Activity;
 import android.content.ComponentName;
 import android.content.Context;
-import android.content.DialogInterface;
-import android.content.DialogInterface.OnDismissListener;
 import android.content.Intent;
 import android.content.ServiceConnection;
 import android.content.SharedPreferences;
@@ -16,6 +14,7 @@ import android.net.Uri;
 import android.os.Bundle;
 import android.os.Environment;
 import android.os.IBinder;
+import android.provider.Settings;
 import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -67,13 +66,14 @@ import org.schabi.newpipe.util.PermissionHelper;
 import org.schabi.newpipe.util.SecondaryStreamHelper;
 import org.schabi.newpipe.util.SimpleOnSeekBarChangeListener;
 import org.schabi.newpipe.util.StreamItemAdapter;
-import org.schabi.newpipe.util.StreamItemAdapter.StreamSizeWrapper;
+import org.schabi.newpipe.util.StreamItemAdapter.StreamInfoWrapper;
 import org.schabi.newpipe.util.AudioTrackAdapter;
 import org.schabi.newpipe.util.AudioTrackAdapter.AudioTracksWrapper;
 import org.schabi.newpipe.util.ThemeHelper;
 
 import java.io.File;
 import java.io.IOException;
+import java.util.ArrayList;
 import java.util.List;
 import java.util.Locale;
 import java.util.Objects;
@@ -97,9 +97,9 @@ public class DownloadDialog extends DialogFragment
     @State
     StreamInfo currentInfo;
     @State
-    StreamSizeWrapper<VideoStream> wrappedVideoStreams;
+    StreamInfoWrapper<VideoStream> wrappedVideoStreams;
     @State
-    StreamSizeWrapper<SubtitlesStream> wrappedSubtitleStreams;
+    StreamInfoWrapper<SubtitlesStream> wrappedSubtitleStreams;
     @State
     AudioTracksWrapper wrappedAudioTracks;
     @State
@@ -111,14 +111,11 @@ public class DownloadDialog extends DialogFragment
     @State
     int selectedSubtitleIndex = 0; // default to the first item
 
-    @Nullable
-    private OnDismissListener onDismissListener = null;
-
     private StoredDirectoryHelper mainStorageAudio = null;
     private StoredDirectoryHelper mainStorageVideo = null;
     private DownloadManager downloadManager = null;
     private ActionMenuItemView okButton = null;
-    private Context context;
+    private Context context = null;
     private boolean askForSavePath;
 
     private AudioTrackAdapter audioTrackAdapter;
@@ -146,7 +143,6 @@ public class DownloadDialog extends DialogFragment
             registerForActivityResult(
                     new StartActivityForResult(), this::requestDownloadPickVideoFolderResult);
 
-
     /*//////////////////////////////////////////////////////////////////////////
     // Instance creation
     //////////////////////////////////////////////////////////////////////////*/
@@ -187,20 +183,13 @@ public class DownloadDialog extends DialogFragment
                 wrappedAudioTracks.size() > 1
         );
 
-        this.wrappedVideoStreams = new StreamSizeWrapper<>(videoStreams, context);
-        this.wrappedSubtitleStreams = new StreamSizeWrapper<>(
+        this.wrappedVideoStreams = new StreamInfoWrapper<>(videoStreams, context);
+        this.wrappedSubtitleStreams = new StreamInfoWrapper<>(
                 getStreamsOfSpecifiedDelivery(info.getSubtitles(), PROGRESSIVE_HTTP), context);
 
         this.selectedVideoIndex = ListHelper.getDefaultResolutionIndex(context, videoStreams);
     }
 
-    /**
-     * @param onDismissListener the listener to call in {@link #onDismiss(DialogInterface)}
-     */
-    public void setOnDismissListener(@Nullable final OnDismissListener onDismissListener) {
-        this.onDismissListener = onDismissListener;
-    }
-
 
     /*//////////////////////////////////////////////////////////////////////////
     // Android lifecycle
@@ -220,6 +209,8 @@ public class DownloadDialog extends DialogFragment
             return;
         }
 
+        // context will remain null if dismiss() was called above, allowing to check whether the
+        // dialog is being dismissed in onViewCreated()
         context = getContext();
 
         setStyle(STYLE_NO_TITLE, ThemeHelper.getDialogTheme(context));
@@ -258,17 +249,17 @@ public class DownloadDialog extends DialogFragment
      * Update the displayed video streams based on the selected audio track.
      */
     private void updateSecondaryStreams() {
-        final StreamSizeWrapper<AudioStream> audioStreams = getWrappedAudioStreams();
+        final StreamInfoWrapper<AudioStream> audioStreams = getWrappedAudioStreams();
         final var secondaryStreams = new SparseArrayCompat<SecondaryStreamHelper<AudioStream>>(4);
         final List<VideoStream> videoStreams = wrappedVideoStreams.getStreamsList();
-        wrappedVideoStreams.resetSizes();
+        wrappedVideoStreams.resetInfo();
 
         for (int i = 0; i < videoStreams.size(); i++) {
             if (!videoStreams.get(i).isVideoOnly()) {
                 continue;
             }
-            final AudioStream audioStream = SecondaryStreamHelper
-                    .getAudioStreamFor(audioStreams.getStreamsList(), videoStreams.get(i));
+            final AudioStream audioStream = SecondaryStreamHelper.getAudioStreamFor(
+                    context, audioStreams.getStreamsList(), videoStreams.get(i));
 
             if (audioStream != null) {
                 secondaryStreams.append(i, new SecondaryStreamHelper<>(audioStreams, audioStream));
@@ -304,6 +295,9 @@ public class DownloadDialog extends DialogFragment
                               @Nullable final Bundle savedInstanceState) {
         super.onViewCreated(view, savedInstanceState);
         dialogBinding = DownloadDialogBinding.bind(view);
+        if (context == null) {
+            return; // the dialog is being dismissed, see the call to dismiss() in onCreate()
+        }
 
         dialogBinding.fileName.setText(FilenameUtils.createFilename(getContext(),
                 currentInfo.getName()));
@@ -313,6 +307,7 @@ public class DownloadDialog extends DialogFragment
         selectedSubtitleIndex = getSubtitleIndexBy(subtitleStreamsAdapter.getAll());
 
         dialogBinding.qualitySpinner.setOnItemSelectedListener(this);
+        dialogBinding.audioStreamSpinner.setOnItemSelectedListener(this);
         dialogBinding.audioTrackSpinner.setOnItemSelectedListener(this);
         dialogBinding.videoAudioGroup.setOnCheckedChangeListener(this);
 
@@ -362,14 +357,6 @@ public class DownloadDialog extends DialogFragment
         });
     }
 
-    @Override
-    public void onDismiss(@NonNull final DialogInterface dialog) {
-        super.onDismiss(dialog);
-        if (onDismissListener != null) {
-            onDismissListener.onDismiss(dialog);
-        }
-    }
-
     @Override
     public void onDestroy() {
         super.onDestroy();
@@ -395,7 +382,7 @@ public class DownloadDialog extends DialogFragment
 
     private void fetchStreamsSize() {
         disposables.clear();
-        disposables.add(StreamSizeWrapper.fetchSizeForWrapper(wrappedVideoStreams)
+        disposables.add(StreamInfoWrapper.fetchMoreInfoForWrapper(wrappedVideoStreams)
                 .subscribe(result -> {
                     if (dialogBinding.videoAudioGroup.getCheckedRadioButtonId()
                             == R.id.video_button) {
@@ -405,7 +392,7 @@ public class DownloadDialog extends DialogFragment
                         new ErrorInfo(throwable, UserAction.DOWNLOAD_OPEN_DIALOG,
                                 "Downloading video stream size",
                                 currentInfo.getServiceId()))));
-        disposables.add(StreamSizeWrapper.fetchSizeForWrapper(getWrappedAudioStreams())
+        disposables.add(StreamInfoWrapper.fetchMoreInfoForWrapper(getWrappedAudioStreams())
                 .subscribe(result -> {
                     if (dialogBinding.videoAudioGroup.getCheckedRadioButtonId()
                             == R.id.audio_button) {
@@ -415,7 +402,7 @@ public class DownloadDialog extends DialogFragment
                         new ErrorInfo(throwable, UserAction.DOWNLOAD_OPEN_DIALOG,
                                 "Downloading audio stream size",
                                 currentInfo.getServiceId()))));
-        disposables.add(StreamSizeWrapper.fetchSizeForWrapper(wrappedSubtitleStreams)
+        disposables.add(StreamInfoWrapper.fetchMoreInfoForWrapper(wrappedSubtitleStreams)
                 .subscribe(result -> {
                     if (dialogBinding.videoAudioGroup.getCheckedRadioButtonId()
                             == R.id.subtitle_button) {
@@ -563,7 +550,6 @@ public class DownloadDialog extends DialogFragment
         }
     }
 
-
     /*//////////////////////////////////////////////////////////////////////////
     // Listeners
     //////////////////////////////////////////////////////////////////////////*/
@@ -723,9 +709,9 @@ public class DownloadDialog extends DialogFragment
         dialogBinding.subtitleButton.setEnabled(enabled);
     }
 
-    private StreamSizeWrapper<AudioStream> getWrappedAudioStreams() {
+    private StreamInfoWrapper<AudioStream> getWrappedAudioStreams() {
         if (selectedAudioTrackIndex < 0 || selectedAudioTrackIndex > wrappedAudioTracks.size()) {
-            return StreamSizeWrapper.empty();
+            return StreamInfoWrapper.empty();
         }
         return wrappedAudioTracks.getTracksList().get(selectedAudioTrackIndex);
     }
@@ -765,7 +751,7 @@ public class DownloadDialog extends DialogFragment
     }
 
     private void showFailedDialog(@StringRes final int msg) {
-        assureCorrectAppLanguage(getContext());
+        assureCorrectAppLanguage(requireContext());
         new AlertDialog.Builder(context)
                 .setTitle(R.string.general_error)
                 .setMessage(msg)
@@ -782,6 +768,7 @@ public class DownloadDialog extends DialogFragment
         final StoredDirectoryHelper mainStorage;
         final MediaFormat format;
         final String selectedMediaType;
+        final long size;
 
         // first, build the filename and get the output folder (if possible)
         // later, run a very very very large file checking logic
@@ -793,35 +780,38 @@ public class DownloadDialog extends DialogFragment
                 selectedMediaType = getString(R.string.last_download_type_audio_key);
                 mainStorage = mainStorageAudio;
                 format = audioStreamsAdapter.getItem(selectedAudioIndex).getFormat();
+                size = getWrappedAudioStreams().getSizeInBytes(selectedAudioIndex);
                 if (format == MediaFormat.WEBMA_OPUS) {
                     mimeTmp = "audio/ogg";
                     filenameTmp += "opus";
                 } else if (format != null) {
                     mimeTmp = format.mimeType;
-                    filenameTmp += format.suffix;
+                    filenameTmp += format.getSuffix();
                 }
                 break;
             case R.id.video_button:
                 selectedMediaType = getString(R.string.last_download_type_video_key);
                 mainStorage = mainStorageVideo;
                 format = videoStreamsAdapter.getItem(selectedVideoIndex).getFormat();
+                size = wrappedVideoStreams.getSizeInBytes(selectedVideoIndex);
                 if (format != null) {
                     mimeTmp = format.mimeType;
-                    filenameTmp += format.suffix;
+                    filenameTmp += format.getSuffix();
                 }
                 break;
             case R.id.subtitle_button:
                 selectedMediaType = getString(R.string.last_download_type_subtitle_key);
                 mainStorage = mainStorageVideo; // subtitle & video files go together
                 format = subtitleStreamsAdapter.getItem(selectedSubtitleIndex).getFormat();
+                size = wrappedSubtitleStreams.getSizeInBytes(selectedSubtitleIndex);
                 if (format != null) {
                     mimeTmp = format.mimeType;
                 }
 
                 if (format == MediaFormat.TTML) {
-                    filenameTmp += MediaFormat.SRT.suffix;
+                    filenameTmp += MediaFormat.SRT.getSuffix();
                 } else if (format != null) {
-                    filenameTmp += format.suffix;
+                    filenameTmp += format.getSuffix();
                 }
                 break;
             default:
@@ -869,6 +859,21 @@ public class DownloadDialog extends DialogFragment
             return;
         }
 
+        // Check for free storage space
+        final long freeSpace = mainStorage.getFreeStorageSpace();
+        if (freeSpace <= size) {
+            Toast.makeText(context, getString(R.
+                    string.error_insufficient_storage), Toast.LENGTH_LONG).show();
+            // move the user to storage setting tab
+            final Intent storageSettingsIntent = new Intent(Settings.
+                    ACTION_INTERNAL_STORAGE_SETTINGS);
+            if (storageSettingsIntent.resolveActivity(context.getPackageManager())
+                    != null) {
+                startActivity(storageSettingsIntent);
+            }
+            return;
+        }
+
         // check for existing file with the same name
         checkSelectedDownload(mainStorage, mainStorage.findFile(filenameTmp), filenameTmp,
                 mimeTmp);
@@ -1051,7 +1056,7 @@ public class DownloadDialog extends DialogFragment
         final char kind;
         int threads = dialogBinding.threads.getProgress() + 1;
         final String[] urls;
-        final MissionRecoveryInfo[] recoveryInfo;
+        final List<MissionRecoveryInfo> recoveryInfo;
         String psName = null;
         String[] psArgs = null;
         long nearLength = 0;
@@ -1116,9 +1121,7 @@ public class DownloadDialog extends DialogFragment
             urls = new String[] {
                     selectedStream.getContent()
             };
-            recoveryInfo = new MissionRecoveryInfo[] {
-                    new MissionRecoveryInfo(selectedStream)
-            };
+            recoveryInfo = List.of(new MissionRecoveryInfo(selectedStream));
         } else {
             if (secondaryStream.getDeliveryMethod() != PROGRESSIVE_HTTP) {
                 throw new IllegalArgumentException("Unsupported stream delivery format"
@@ -1128,12 +1131,14 @@ public class DownloadDialog extends DialogFragment
             urls = new String[] {
                     selectedStream.getContent(), secondaryStream.getContent()
             };
-            recoveryInfo = new MissionRecoveryInfo[] {new MissionRecoveryInfo(selectedStream),
-                    new MissionRecoveryInfo(secondaryStream)};
+            recoveryInfo = List.of(
+                    new MissionRecoveryInfo(selectedStream),
+                    new MissionRecoveryInfo(secondaryStream)
+            );
         }
 
         DownloadManagerService.startMission(context, urls, storage, kind, threads,
-                currentInfo.getUrl(), psName, psArgs, nearLength, recoveryInfo);
+                currentInfo.getUrl(), psName, psArgs, nearLength, new ArrayList<>(recoveryInfo));
 
         Toast.makeText(context, getString(R.string.download_has_started),
                 Toast.LENGTH_SHORT).show();

app/src/main/java/org/schabi/newpipe/download/LoadingDialog.java

@@ -0,0 +1,87 @@
+package org.schabi.newpipe.download;
+
+import android.os.Bundle;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.annotation.StringRes;
+import androidx.appcompat.widget.Toolbar;
+import androidx.fragment.app.DialogFragment;
+
+import org.schabi.newpipe.MainActivity;
+import org.schabi.newpipe.R;
+import org.schabi.newpipe.databinding.DownloadLoadingDialogBinding;
+
+/**
+ * This class contains a dialog which shows a loading indicator and has a customizable title.
+ */
+public class LoadingDialog extends DialogFragment {
+    private static final String TAG = "LoadingDialog";
+    private static final boolean DEBUG = MainActivity.DEBUG;
+    private DownloadLoadingDialogBinding dialogLoadingBinding;
+    private final @StringRes int title;
+
+    /**
+     * Create a new LoadingDialog.
+     *
+     * <p>
+     *     The dialog contains a loading indicator and has a customizable title.
+     *     <br/>
+     *     Use {@code show()} to display the dialog to the user.
+     * </p>
+     *
+     * @param title an informative title shown in the dialog's toolbar
+     */
+    public LoadingDialog(final @StringRes int title) {
+        this.title = title;
+    }
+
+    @Override
+    public void onCreate(@Nullable final Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        if (DEBUG) {
+            Log.d(TAG, "onCreate() called with: "
+                    + "savedInstanceState = [" + savedInstanceState + "]");
+        }
+        this.setCancelable(false);
+    }
+
+    @Override
+    public View onCreateView(
+            @NonNull final LayoutInflater inflater,
+            final ViewGroup container,
+            final Bundle savedInstanceState) {
+        if (DEBUG) {
+            Log.d(TAG, "onCreateView() called with: "
+                    + "inflater = [" + inflater + "], container = [" + container + "], "
+                    + "savedInstanceState = [" + savedInstanceState + "]");
+        }
+        return inflater.inflate(R.layout.download_loading_dialog, container);
+    }
+
+    @Override
+    public void onViewCreated(@NonNull final View view, @Nullable final Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
+        dialogLoadingBinding = DownloadLoadingDialogBinding.bind(view);
+        initToolbar(dialogLoadingBinding.toolbarLayout.toolbar);
+    }
+
+    private void initToolbar(final Toolbar toolbar) {
+        if (DEBUG) {
+            Log.d(TAG, "initToolbar() called with: toolbar = [" + toolbar + "]");
+        }
+        toolbar.setTitle(requireContext().getString(title));
+        toolbar.setNavigationOnClickListener(v -> dismiss());
+
+    }
+
+    @Override
+    public void onDestroyView() {
+        dialogLoadingBinding = null;
+        super.onDestroyView();
+    }
+}

app/src/main/java/org/schabi/newpipe/error/ErrorActivity.java

@@ -17,6 +17,7 @@ import androidx.annotation.Nullable;
 import androidx.appcompat.app.ActionBar;
 import androidx.appcompat.app.AlertDialog;
 import androidx.appcompat.app.AppCompatActivity;
+import androidx.core.content.IntentCompat;
 
 import com.grack.nanojson.JsonWriter;
 
@@ -105,7 +106,7 @@ public class ErrorActivity extends AppCompatActivity {
             actionBar.setDisplayShowTitleEnabled(true);
         }
 
-        errorInfo = intent.getParcelableExtra(ERROR_INFO);
+        errorInfo = IntentCompat.getParcelableExtra(intent, ERROR_INFO, ErrorInfo.class);
 
         // important add guru meditation
         addGuruMeditation();

app/src/main/java/org/schabi/newpipe/error/ErrorInfo.kt

@@ -11,7 +11,6 @@ import org.schabi.newpipe.extractor.exceptions.AccountTerminatedException
 import org.schabi.newpipe.extractor.exceptions.ContentNotAvailableException
 import org.schabi.newpipe.extractor.exceptions.ContentNotSupportedException
 import org.schabi.newpipe.extractor.exceptions.ExtractionException
-import org.schabi.newpipe.extractor.services.youtube.extractors.YoutubeStreamExtractor.DeobfuscateException
 import org.schabi.newpipe.ktx.isNetworkRelated
 import org.schabi.newpipe.util.ServiceHelper
 
@@ -96,7 +95,6 @@ class ErrorInfo(
                 throwable is ContentNotAvailableException -> R.string.content_not_available
                 throwable != null && throwable.isNetworkRelated -> R.string.network_error
                 throwable is ContentNotSupportedException -> R.string.content_not_supported
-                throwable is DeobfuscateException -> R.string.youtube_signature_deobfuscation_error
                 throwable is ExtractionException -> R.string.parsing_error
                 throwable is ExoPlaybackException -> {
                     when (throwable.type) {

app/src/main/java/org/schabi/newpipe/error/UserAction.java

@@ -6,6 +6,7 @@ package org.schabi.newpipe.error;
 public enum UserAction {
     USER_REPORT("user report"),
     UI_ERROR("ui error"),
+    DATABASE_IMPORT_EXPORT("database import or export"),
     SUBSCRIPTION_CHANGE("subscription change"),
     SUBSCRIPTION_UPDATE("subscription update"),
     SUBSCRIPTION_GET("get subscription"),
@@ -19,6 +20,7 @@ public enum UserAction {
     REQUESTED_PLAYLIST("requested playlist"),
     REQUESTED_KIOSK("requested kiosk"),
     REQUESTED_COMMENTS("requested comments"),
+    REQUESTED_COMMENT_REPLIES("requested comment replies"),
     REQUESTED_FEED("requested feed"),
     REQUESTED_BOOKMARK("bookmark"),
     DELETE_FROM_HISTORY("delete from history"),

app/src/main/java/org/schabi/newpipe/fragments/BaseStateFragment.java

@@ -1,12 +1,16 @@
 package org.schabi.newpipe.fragments;
 
+import static org.schabi.newpipe.ktx.ViewUtils.animate;
+
 import android.os.Bundle;
 import android.util.Log;
 import android.view.View;
 import android.widget.ProgressBar;
+import android.widget.TextView;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.annotation.StringRes;
 import androidx.fragment.app.Fragment;
 
 import org.schabi.newpipe.BaseFragment;
@@ -20,15 +24,15 @@ import java.util.concurrent.atomic.AtomicBoolean;
 
 import icepick.State;
 
-import static org.schabi.newpipe.ktx.ViewUtils.animate;
-
 public abstract class BaseStateFragment<I> extends BaseFragment implements ViewContract<I> {
     @State
     protected AtomicBoolean wasLoading = new AtomicBoolean();
     protected AtomicBoolean isLoading = new AtomicBoolean();
 
     @Nullable
-    private View emptyStateView;
+    protected View emptyStateView;
+    @Nullable
+    protected TextView emptyStateMessageView;
     @Nullable
     private ProgressBar loadingProgressBar;
 
@@ -65,6 +69,7 @@ public abstract class BaseStateFragment<I> extends BaseFragment implements ViewC
     protected void initViews(final View rootView, final Bundle savedInstanceState) {
         super.initViews(rootView, savedInstanceState);
         emptyStateView = rootView.findViewById(R.id.empty_state_view);
+        emptyStateMessageView = rootView.findViewById(R.id.empty_state_message);
         loadingProgressBar = rootView.findViewById(R.id.loading_progress_bar);
         errorPanelHelper = new ErrorPanelHelper(this, rootView, this::onRetryButtonClicked);
     }
@@ -75,6 +80,8 @@ public abstract class BaseStateFragment<I> extends BaseFragment implements ViewC
         if (errorPanelHelper != null) {
             errorPanelHelper.dispose();
         }
+        emptyStateView = null;
+        emptyStateMessageView = null;
     }
 
     protected void onRetryButtonClicked() {
@@ -189,6 +196,12 @@ public abstract class BaseStateFragment<I> extends BaseFragment implements ViewC
         errorPanelHelper.showTextError(errorString);
     }
 
+    protected void setEmptyStateMessage(@StringRes final int text) {
+        if (emptyStateMessageView != null) {
+            emptyStateMessageView.setText(text);
+        }
+    }
+
     public final void hideErrorPanel() {
         errorPanelHelper.hide();
         lastPanelError = null;

app/src/main/java/org/schabi/newpipe/fragments/MainFragment.java

@@ -1,6 +1,16 @@
 package org.schabi.newpipe.fragments;
 
+import static android.widget.RelativeLayout.ABOVE;
+import static android.widget.RelativeLayout.ALIGN_PARENT_BOTTOM;
+import static android.widget.RelativeLayout.ALIGN_PARENT_TOP;
+import static android.widget.RelativeLayout.BELOW;
+import static com.google.android.material.tabs.TabLayout.INDICATOR_GRAVITY_BOTTOM;
+import static com.google.android.material.tabs.TabLayout.INDICATOR_GRAVITY_TOP;
+
 import android.content.Context;
+import android.content.SharedPreferences;
+import android.content.res.ColorStateList;
+import android.graphics.Color;
 import android.os.Bundle;
 import android.util.Log;
 import android.view.LayoutInflater;
@@ -9,7 +19,9 @@ import android.view.MenuInflater;
 import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.RelativeLayout;
 
+import androidx.annotation.ColorInt;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.appcompat.app.ActionBar;
@@ -17,6 +29,7 @@ import androidx.fragment.app.Fragment;
 import androidx.fragment.app.FragmentManager;
 import androidx.fragment.app.FragmentStatePagerAdapterMenuWorkaround;
 import androidx.preference.PreferenceManager;
+import androidx.viewpager.widget.ViewPager;
 
 import com.google.android.material.tabs.TabLayout;
 
@@ -25,10 +38,13 @@ import org.schabi.newpipe.R;
 import org.schabi.newpipe.databinding.FragmentMainBinding;
 import org.schabi.newpipe.error.ErrorUtil;
 import org.schabi.newpipe.extractor.exceptions.ExtractionException;
+import org.schabi.newpipe.local.playlist.LocalPlaylistFragment;
 import org.schabi.newpipe.settings.tabs.Tab;
 import org.schabi.newpipe.settings.tabs.TabsManager;
 import org.schabi.newpipe.util.NavigationHelper;
 import org.schabi.newpipe.util.ServiceHelper;
+import org.schabi.newpipe.util.ThemeHelper;
+import org.schabi.newpipe.views.ScrollableTabLayout;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -42,8 +58,11 @@ public class MainFragment extends BaseFragment implements TabLayout.OnTabSelecte
 
     private boolean hasTabsChanged = false;
 
-    private boolean previousYoutubeRestrictedModeEnabled;
+    private SharedPreferences prefs;
+    private boolean youtubeRestrictedModeEnabled;
     private String youtubeRestrictedModeEnabledKey;
+    private boolean mainTabsPositionBottom;
+    private String mainTabsPositionKey;
 
     /*//////////////////////////////////////////////////////////////////////////
     // Fragment's LifeCycle
@@ -66,10 +85,11 @@ public class MainFragment extends BaseFragment implements TabLayout.OnTabSelecte
             }
         });
 
+        prefs = PreferenceManager.getDefaultSharedPreferences(requireContext());
         youtubeRestrictedModeEnabledKey = getString(R.string.youtube_restricted_mode_enabled);
-        previousYoutubeRestrictedModeEnabled =
-                PreferenceManager.getDefaultSharedPreferences(requireContext())
-                        .getBoolean(youtubeRestrictedModeEnabledKey, false);
+        youtubeRestrictedModeEnabled = prefs.getBoolean(youtubeRestrictedModeEnabledKey, false);
+        mainTabsPositionKey = getString(R.string.main_tabs_position_key);
+        mainTabsPositionBottom = prefs.getBoolean(mainTabsPositionKey, false);
     }
 
     @Override
@@ -87,25 +107,27 @@ public class MainFragment extends BaseFragment implements TabLayout.OnTabSelecte
 
         binding.mainTabLayout.setupWithViewPager(binding.pager);
         binding.mainTabLayout.addOnTabSelectedListener(this);
-        binding.mainTabLayout.setTabRippleColor(binding.mainTabLayout.getTabRippleColor()
-                .withAlpha(32));
 
         setupTabs();
+        updateTabLayoutPosition();
     }
 
     @Override
     public void onResume() {
         super.onResume();
 
-        final boolean youtubeRestrictedModeEnabled =
-                PreferenceManager.getDefaultSharedPreferences(requireContext())
-                        .getBoolean(youtubeRestrictedModeEnabledKey, false);
-        if (previousYoutubeRestrictedModeEnabled != youtubeRestrictedModeEnabled) {
-            previousYoutubeRestrictedModeEnabled = youtubeRestrictedModeEnabled;
-            setupTabs();
-        } else if (hasTabsChanged) {
+        final boolean newYoutubeRestrictedModeEnabled =
+                prefs.getBoolean(youtubeRestrictedModeEnabledKey, false);
+        if (youtubeRestrictedModeEnabled != newYoutubeRestrictedModeEnabled || hasTabsChanged) {
+            youtubeRestrictedModeEnabled = newYoutubeRestrictedModeEnabled;
             setupTabs();
         }
+
+        final boolean newMainTabsPosition = prefs.getBoolean(mainTabsPositionKey, false);
+        if (mainTabsPositionBottom != newMainTabsPosition) {
+            mainTabsPositionBottom = newMainTabsPosition;
+            updateTabLayoutPosition();
+        }
     }
 
     @Override
@@ -118,6 +140,12 @@ public class MainFragment extends BaseFragment implements TabLayout.OnTabSelecte
         }
     }
 
+    @Override
+    public void onDestroyView() {
+        super.onDestroyView();
+        binding = null;
+    }
+
     /*//////////////////////////////////////////////////////////////////////////
     // Menu
     //////////////////////////////////////////////////////////////////////////*/
@@ -166,7 +194,6 @@ public class MainFragment extends BaseFragment implements TabLayout.OnTabSelecte
         }
 
         binding.pager.setAdapter(null);
-        binding.pager.setOffscreenPageLimit(tabsList.size());
         binding.pager.setAdapter(pagerAdapter);
 
         updateTabsIconAndDescription();
@@ -190,6 +217,44 @@ public class MainFragment extends BaseFragment implements TabLayout.OnTabSelecte
         setTitle(tabsList.get(tabPosition).getTabName(requireContext()));
     }
 
+    public void commitPlaylistTabs() {
+        pagerAdapter.getLocalPlaylistFragments()
+                .stream()
+                .forEach(LocalPlaylistFragment::saveImmediate);
+    }
+
+    private void updateTabLayoutPosition() {
+        final ScrollableTabLayout tabLayout = binding.mainTabLayout;
+        final ViewPager viewPager = binding.pager;
+        final boolean bottom = mainTabsPositionBottom;
+
+        // change layout params to make the tab layout appear either at the top or at the bottom
+        final var tabParams = (RelativeLayout.LayoutParams) tabLayout.getLayoutParams();
+        final var pagerParams = (RelativeLayout.LayoutParams) viewPager.getLayoutParams();
+
+        tabParams.removeRule(bottom ? ALIGN_PARENT_TOP : ALIGN_PARENT_BOTTOM);
+        tabParams.addRule(bottom ? ALIGN_PARENT_BOTTOM : ALIGN_PARENT_TOP);
+        pagerParams.removeRule(bottom ? BELOW : ABOVE);
+        pagerParams.addRule(bottom ? ABOVE : BELOW, R.id.main_tab_layout);
+        tabLayout.setSelectedTabIndicatorGravity(
+                bottom ? INDICATOR_GRAVITY_TOP : INDICATOR_GRAVITY_BOTTOM);
+
+        tabLayout.setLayoutParams(tabParams);
+        viewPager.setLayoutParams(pagerParams);
+
+        // change the background and icon color of the tab layout:
+        // service-colored at the top, app-background-colored at the bottom
+        tabLayout.setBackgroundColor(ThemeHelper.resolveColorFromAttr(requireContext(),
+                bottom ? R.attr.colorSecondary : R.attr.colorPrimary));
+
+        @ColorInt final int iconColor = bottom
+                ? ThemeHelper.resolveColorFromAttr(requireContext(), R.attr.colorAccent)
+                : Color.WHITE;
+        tabLayout.setTabRippleColor(ColorStateList.valueOf(iconColor).withAlpha(32));
+        tabLayout.setTabIconTint(ColorStateList.valueOf(iconColor));
+        tabLayout.setSelectedTabIndicatorColor(iconColor);
+    }
+
     @Override
     public void onTabSelected(final TabLayout.Tab selectedTab) {
         if (DEBUG) {
@@ -209,10 +274,18 @@ public class MainFragment extends BaseFragment implements TabLayout.OnTabSelecte
         updateTitleForTab(tab.getPosition());
     }
 
-    private static final class SelectedTabsPagerAdapter
+    public static final class SelectedTabsPagerAdapter
             extends FragmentStatePagerAdapterMenuWorkaround {
         private final Context context;
         private final List<Tab> internalTabsList;
+        /**
+         * Keep reference to LocalPlaylistFragments, because their data can be modified by the user
+         * during runtime and changes are not committed immediately. However, in some cases,
+         * the changes need to be committed immediately by calling
+         * {@link LocalPlaylistFragment#saveImmediate()}.
+         * The fragments are removed when {@link LocalPlaylistFragment#onDestroy()} is called.
+         */
+        private final List<LocalPlaylistFragment> localPlaylistFragments = new ArrayList<>();
 
         private SelectedTabsPagerAdapter(final Context context,
                                          final FragmentManager fragmentManager,
@@ -239,9 +312,17 @@ public class MainFragment extends BaseFragment implements TabLayout.OnTabSelecte
                 ((BaseFragment) fragment).useAsFrontPage(true);
             }
 
+            if (fragment instanceof LocalPlaylistFragment) {
+                localPlaylistFragments.add((LocalPlaylistFragment) fragment);
+            }
+
             return fragment;
         }
 
+        public List<LocalPlaylistFragment> getLocalPlaylistFragments() {
+            return localPlaylistFragments;
+        }
+
         @Override
         public int getItemPosition(@NonNull final Object object) {
             // Causes adapter to reload all Fragments when

app/src/main/java/org/schabi/newpipe/fragments/detail/BaseDescriptionFragment.java

@@ -0,0 +1,281 @@
+package org.schabi.newpipe.fragments.detail;
+
+import static android.text.TextUtils.isEmpty;
+import static org.schabi.newpipe.extractor.utils.Utils.isBlank;
+import static org.schabi.newpipe.util.text.TextLinkifier.SET_LINK_MOVEMENT_METHOD;
+
+import android.graphics.Typeface;
+import android.os.Bundle;
+import android.text.SpannableStringBuilder;
+import android.text.Spanned;
+import android.text.method.LinkMovementMethod;
+import android.text.style.ClickableSpan;
+import android.text.style.StyleSpan;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.LinearLayout;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.annotation.StringRes;
+import androidx.appcompat.widget.TooltipCompat;
+import androidx.core.text.HtmlCompat;
+
+import com.google.android.material.chip.Chip;
+
+import org.schabi.newpipe.BaseFragment;
+import org.schabi.newpipe.R;
+import org.schabi.newpipe.databinding.FragmentDescriptionBinding;
+import org.schabi.newpipe.databinding.ItemMetadataBinding;
+import org.schabi.newpipe.databinding.ItemMetadataTagsBinding;
+import org.schabi.newpipe.extractor.Image;
+import org.schabi.newpipe.extractor.StreamingService;
+import org.schabi.newpipe.extractor.stream.Description;
+import org.schabi.newpipe.util.NavigationHelper;
+import org.schabi.newpipe.util.external_communication.ShareUtils;
+import org.schabi.newpipe.util.image.ImageStrategy;
+import org.schabi.newpipe.util.text.TextLinkifier;
+
+import java.util.List;
+
+import io.reactivex.rxjava3.disposables.CompositeDisposable;
+
+public abstract class BaseDescriptionFragment extends BaseFragment {
+    private final CompositeDisposable descriptionDisposables = new CompositeDisposable();
+    protected FragmentDescriptionBinding binding;
+
+    @Override
+    public View onCreateView(@NonNull final LayoutInflater inflater,
+                             @Nullable final ViewGroup container,
+                             @Nullable final Bundle savedInstanceState) {
+        binding = FragmentDescriptionBinding.inflate(inflater, container, false);
+        setupDescription();
+        setupMetadata(inflater, binding.detailMetadataLayout);
+        addTagsMetadataItem(inflater, binding.detailMetadataLayout);
+        return binding.getRoot();
+    }
+
+    @Override
+    public void onDestroy() {
+        descriptionDisposables.clear();
+        super.onDestroy();
+    }
+
+    /**
+     * Get the description to display.
+     * @return description object, if available
+     */
+    @Nullable
+    protected abstract Description getDescription();
+
+    /**
+     * Get the streaming service. Used for generating description links.
+     * @return streaming service
+     */
+    @NonNull
+    protected abstract StreamingService getService();
+
+    /**
+     * Get the streaming service ID. Used for tag links.
+     * @return service ID
+     */
+    protected abstract int getServiceId();
+
+    /**
+     * Get the URL of the described video or audio, used to generate description links.
+     * @return stream URL
+     */
+    @Nullable
+    protected abstract String getStreamUrl();
+
+    /**
+     * Get the list of tags to display below the description.
+     * @return tag list
+     */
+    @NonNull
+    public abstract List<String> getTags();
+
+    /**
+     * Add additional metadata to display.
+     * @param inflater LayoutInflater
+     * @param layout detailMetadataLayout
+     */
+    protected abstract void setupMetadata(LayoutInflater inflater, LinearLayout layout);
+
+    private void setupDescription() {
+        final Description description = getDescription();
+        if (description == null || isEmpty(description.getContent())
+                || description == Description.EMPTY_DESCRIPTION) {
+            binding.detailDescriptionView.setVisibility(View.GONE);
+            binding.detailSelectDescriptionButton.setVisibility(View.GONE);
+            return;
+        }
+
+        // start with disabled state. This also loads description content (!)
+        disableDescriptionSelection();
+
+        binding.detailSelectDescriptionButton.setOnClickListener(v -> {
+            if (binding.detailDescriptionNoteView.getVisibility() == View.VISIBLE) {
+                disableDescriptionSelection();
+            } else {
+                // enable selection only when button is clicked to prevent flickering
+                enableDescriptionSelection();
+            }
+        });
+    }
+
+    private void enableDescriptionSelection() {
+        binding.detailDescriptionNoteView.setVisibility(View.VISIBLE);
+        binding.detailDescriptionView.setTextIsSelectable(true);
+
+        final String buttonLabel = getString(R.string.description_select_disable);
+        binding.detailSelectDescriptionButton.setContentDescription(buttonLabel);
+        TooltipCompat.setTooltipText(binding.detailSelectDescriptionButton, buttonLabel);
+        binding.detailSelectDescriptionButton.setImageResource(R.drawable.ic_close);
+    }
+
+    private void disableDescriptionSelection() {
+        // show description content again, otherwise some links are not clickable
+        final Description description = getDescription();
+        if (description != null) {
+            TextLinkifier.fromDescription(binding.detailDescriptionView,
+                    description, HtmlCompat.FROM_HTML_MODE_LEGACY,
+                    getService(), getStreamUrl(),
+                    descriptionDisposables, SET_LINK_MOVEMENT_METHOD);
+        }
+
+        binding.detailDescriptionNoteView.setVisibility(View.GONE);
+        binding.detailDescriptionView.setTextIsSelectable(false);
+
+        final String buttonLabel = getString(R.string.description_select_enable);
+        binding.detailSelectDescriptionButton.setContentDescription(buttonLabel);
+        TooltipCompat.setTooltipText(binding.detailSelectDescriptionButton, buttonLabel);
+        binding.detailSelectDescriptionButton.setImageResource(R.drawable.ic_select_all);
+    }
+
+    protected void addMetadataItem(final LayoutInflater inflater,
+                                   final LinearLayout layout,
+                                   final boolean linkifyContent,
+                                   @StringRes final int type,
+                                   @NonNull final String content) {
+        if (isBlank(content)) {
+            return;
+        }
+
+        final ItemMetadataBinding itemBinding =
+                ItemMetadataBinding.inflate(inflater, layout, false);
+
+        itemBinding.metadataTypeView.setText(type);
+        itemBinding.metadataTypeView.setOnLongClickListener(v -> {
+            ShareUtils.copyToClipboard(requireContext(), content);
+            return true;
+        });
+
+        if (linkifyContent) {
+            TextLinkifier.fromPlainText(itemBinding.metadataContentView, content, null, null,
+                    descriptionDisposables, SET_LINK_MOVEMENT_METHOD);
+        } else {
+            itemBinding.metadataContentView.setText(content);
+        }
+
+        itemBinding.metadataContentView.setClickable(true);
+
+        layout.addView(itemBinding.getRoot());
+    }
+
+    private String imageSizeToText(final int heightOrWidth) {
+        if (heightOrWidth < 0) {
+            return getString(R.string.question_mark);
+        } else {
+            return String.valueOf(heightOrWidth);
+        }
+    }
+
+    protected void addImagesMetadataItem(final LayoutInflater inflater,
+                                         final LinearLayout layout,
+                                         @StringRes final int type,
+                                         final List<Image> images) {
+        final String preferredImageUrl = ImageStrategy.choosePreferredImage(images);
+        if (preferredImageUrl == null) {
+            return; // null will be returned in case there is no image
+        }
+
+        final ItemMetadataBinding itemBinding =
+                ItemMetadataBinding.inflate(inflater, layout, false);
+        itemBinding.metadataTypeView.setText(type);
+
+        final SpannableStringBuilder urls = new SpannableStringBuilder();
+        for (final Image image : images) {
+            if (urls.length() != 0) {
+                urls.append(", ");
+            }
+            final int entryBegin = urls.length();
+
+            if (image.getHeight() != Image.HEIGHT_UNKNOWN
+                    || image.getWidth() != Image.WIDTH_UNKNOWN
+                    // if even the resolution level is unknown, ?x? will be shown
+                    || image.getEstimatedResolutionLevel() == Image.ResolutionLevel.UNKNOWN) {
+                urls.append(imageSizeToText(image.getHeight()));
+                urls.append('x');
+                urls.append(imageSizeToText(image.getWidth()));
+            } else {
+                switch (image.getEstimatedResolutionLevel()) {
+                    case LOW -> urls.append(getString(R.string.image_quality_low));
+                    case MEDIUM -> urls.append(getString(R.string.image_quality_medium));
+                    case HIGH -> urls.append(getString(R.string.image_quality_high));
+                    default -> {
+                        // unreachable, Image.ResolutionLevel.UNKNOWN is already filtered out
+                    }
+                }
+            }
+
+            urls.setSpan(new ClickableSpan() {
+                @Override
+                public void onClick(@NonNull final View widget) {
+                    ShareUtils.openUrlInBrowser(requireContext(), image.getUrl());
+                }
+            }, entryBegin, urls.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
+
+            if (preferredImageUrl.equals(image.getUrl())) {
+                urls.setSpan(new StyleSpan(Typeface.BOLD), entryBegin, urls.length(),
+                        Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
+            }
+        }
+
+        itemBinding.metadataContentView.setText(urls);
+        itemBinding.metadataContentView.setMovementMethod(LinkMovementMethod.getInstance());
+        layout.addView(itemBinding.getRoot());
+    }
+
+    private void addTagsMetadataItem(final LayoutInflater inflater, final LinearLayout layout) {
+        final List<String> tags = getTags();
+
+        if (!tags.isEmpty()) {
+            final var itemBinding = ItemMetadataTagsBinding.inflate(inflater, layout, false);
+
+            tags.stream().sorted(String.CASE_INSENSITIVE_ORDER).forEach(tag -> {
+                final Chip chip = (Chip) inflater.inflate(R.layout.chip,
+                        itemBinding.metadataTagsChips, false);
+                chip.setText(tag);
+                chip.setOnClickListener(this::onTagClick);
+                chip.setOnLongClickListener(this::onTagLongClick);
+                itemBinding.metadataTagsChips.addView(chip);
+            });
+
+            layout.addView(itemBinding.getRoot());
+        }
+    }
+
+    private void onTagClick(final View chip) {
+        if (getParentFragment() != null) {
+            NavigationHelper.openSearchFragment(getParentFragment().getParentFragmentManager(),
+                    getServiceId(), ((Chip) chip).getText().toString());
+        }
+    }
+
+    private boolean onTagLongClick(final View chip) {
+        ShareUtils.copyToClipboard(requireContext(), ((Chip) chip).getText().toString());
+        return true;
+    }
+}

app/src/main/java/org/schabi/newpipe/fragments/detail/DescriptionFragment.java

@@ -1,134 +1,83 @@
 package org.schabi.newpipe.fragments.detail;
 
-import static android.text.TextUtils.isEmpty;
 import static org.schabi.newpipe.extractor.stream.StreamExtractor.NO_AGE_LIMIT;
-import static org.schabi.newpipe.extractor.utils.Utils.isBlank;
 import static org.schabi.newpipe.util.Localization.getAppLocale;
-import static org.schabi.newpipe.util.text.TextLinkifier.SET_LINK_MOVEMENT_METHOD;
 
-import android.os.Bundle;
 import android.view.LayoutInflater;
 import android.view.View;
-import android.view.ViewGroup;
 import android.widget.LinearLayout;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.annotation.StringRes;
-import androidx.appcompat.widget.TooltipCompat;
-import androidx.core.text.HtmlCompat;
 
-import com.google.android.material.chip.Chip;
-
-import org.schabi.newpipe.BaseFragment;
 import org.schabi.newpipe.R;
-import org.schabi.newpipe.databinding.FragmentDescriptionBinding;
-import org.schabi.newpipe.databinding.ItemMetadataBinding;
-import org.schabi.newpipe.databinding.ItemMetadataTagsBinding;
+import org.schabi.newpipe.extractor.StreamingService;
 import org.schabi.newpipe.extractor.stream.Description;
 import org.schabi.newpipe.extractor.stream.StreamInfo;
 import org.schabi.newpipe.util.Localization;
-import org.schabi.newpipe.util.NavigationHelper;
-import org.schabi.newpipe.util.external_communication.ShareUtils;
-import org.schabi.newpipe.util.text.TextLinkifier;
+
+import java.util.List;
 
 import icepick.State;
-import io.reactivex.rxjava3.disposables.CompositeDisposable;
 
-public class DescriptionFragment extends BaseFragment {
+public class DescriptionFragment extends BaseDescriptionFragment {
 
     @State
-    StreamInfo streamInfo = null;
-    final CompositeDisposable descriptionDisposables = new CompositeDisposable();
-    FragmentDescriptionBinding binding;
-
-    public DescriptionFragment() {
-    }
+    StreamInfo streamInfo;
 
     public DescriptionFragment(final StreamInfo streamInfo) {
         this.streamInfo = streamInfo;
     }
 
-    @Override
-    public View onCreateView(@NonNull final LayoutInflater inflater,
-                             @Nullable final ViewGroup container,
-                             @Nullable final Bundle savedInstanceState) {
-        binding = FragmentDescriptionBinding.inflate(inflater, container, false);
-        if (streamInfo != null) {
-            setupUploadDate();
-            setupDescription();
-            setupMetadata(inflater, binding.detailMetadataLayout);
-        }
-        return binding.getRoot();
-    }
-
-    @Override
-    public void onDestroy() {
-        descriptionDisposables.clear();
-        super.onDestroy();
+    public DescriptionFragment() {
+        // keep empty constructor for IcePick when resuming fragment from memory
     }
 
 
-    private void setupUploadDate() {
-        if (streamInfo.getUploadDate() != null) {
+    @Nullable
+    @Override
+    protected Description getDescription() {
+        return streamInfo.getDescription();
+    }
+
+    @NonNull
+    @Override
+    protected StreamingService getService() {
+        return streamInfo.getService();
+    }
+
+    @Override
+    protected int getServiceId() {
+        return streamInfo.getServiceId();
+    }
+
+    @NonNull
+    @Override
+    protected String getStreamUrl() {
+        return streamInfo.getUrl();
+    }
+
+    @NonNull
+    @Override
+    public List<String> getTags() {
+        return streamInfo.getTags();
+    }
+
+    @Override
+    protected void setupMetadata(final LayoutInflater inflater,
+                                 final LinearLayout layout) {
+        if (streamInfo != null && streamInfo.getUploadDate() != null) {
             binding.detailUploadDateView.setText(Localization
                     .localizeUploadDate(activity, streamInfo.getUploadDate().offsetDateTime()));
         } else {
             binding.detailUploadDateView.setVisibility(View.GONE);
         }
-    }
 
-
-    private void setupDescription() {
-        final Description description = streamInfo.getDescription();
-        if (description == null || isEmpty(description.getContent())
-                || description == Description.EMPTY_DESCRIPTION) {
-            binding.detailDescriptionView.setVisibility(View.GONE);
-            binding.detailSelectDescriptionButton.setVisibility(View.GONE);
+        if (streamInfo == null) {
             return;
         }
 
-        // start with disabled state. This also loads description content (!)
-        disableDescriptionSelection();
-
-        binding.detailSelectDescriptionButton.setOnClickListener(v -> {
-            if (binding.detailDescriptionNoteView.getVisibility() == View.VISIBLE) {
-                disableDescriptionSelection();
-            } else {
-                // enable selection only when button is clicked to prevent flickering
-                enableDescriptionSelection();
-            }
-        });
-    }
-
-    private void enableDescriptionSelection() {
-        binding.detailDescriptionNoteView.setVisibility(View.VISIBLE);
-        binding.detailDescriptionView.setTextIsSelectable(true);
-
-        final String buttonLabel = getString(R.string.description_select_disable);
-        binding.detailSelectDescriptionButton.setContentDescription(buttonLabel);
-        TooltipCompat.setTooltipText(binding.detailSelectDescriptionButton, buttonLabel);
-        binding.detailSelectDescriptionButton.setImageResource(R.drawable.ic_close);
-    }
-
-    private void disableDescriptionSelection() {
-        // show description content again, otherwise some links are not clickable
-        TextLinkifier.fromDescription(binding.detailDescriptionView,
-                streamInfo.getDescription(), HtmlCompat.FROM_HTML_MODE_LEGACY,
-                streamInfo.getService(), streamInfo.getUrl(),
-                descriptionDisposables, SET_LINK_MOVEMENT_METHOD);
-
-        binding.detailDescriptionNoteView.setVisibility(View.GONE);
-        binding.detailDescriptionView.setTextIsSelectable(false);
-
-        final String buttonLabel = getString(R.string.description_select_enable);
-        binding.detailSelectDescriptionButton.setContentDescription(buttonLabel);
-        TooltipCompat.setTooltipText(binding.detailSelectDescriptionButton, buttonLabel);
-        binding.detailSelectDescriptionButton.setImageResource(R.drawable.ic_select_all);
-    }
-
-    private void setupMetadata(final LayoutInflater inflater,
-                               final LinearLayout layout) {
         addMetadataItem(inflater, layout, false, R.string.metadata_category,
                 streamInfo.getCategory());
 
@@ -151,69 +100,13 @@ public class DescriptionFragment extends BaseFragment {
                 streamInfo.getSupportInfo());
         addMetadataItem(inflater, layout, true, R.string.metadata_host,
                 streamInfo.getHost());
-        addMetadataItem(inflater, layout, true, R.string.metadata_thumbnail_url,
-                streamInfo.getThumbnailUrl());
 
-        addTagsMetadataItem(inflater, layout);
-    }
-
-    private void addMetadataItem(final LayoutInflater inflater,
-                                 final LinearLayout layout,
-                                 final boolean linkifyContent,
-                                 @StringRes final int type,
-                                 @Nullable final String content) {
-        if (isBlank(content)) {
-            return;
-        }
-
-        final ItemMetadataBinding itemBinding =
-                ItemMetadataBinding.inflate(inflater, layout, false);
-
-        itemBinding.metadataTypeView.setText(type);
-        itemBinding.metadataTypeView.setOnLongClickListener(v -> {
-            ShareUtils.copyToClipboard(requireContext(), content);
-            return true;
-        });
-
-        if (linkifyContent) {
-            TextLinkifier.fromPlainText(itemBinding.metadataContentView, content, null, null,
-                    descriptionDisposables, SET_LINK_MOVEMENT_METHOD);
-        } else {
-            itemBinding.metadataContentView.setText(content);
-        }
-
-        itemBinding.metadataContentView.setClickable(true);
-
-        layout.addView(itemBinding.getRoot());
-    }
-
-    private void addTagsMetadataItem(final LayoutInflater inflater, final LinearLayout layout) {
-        if (streamInfo.getTags() != null && !streamInfo.getTags().isEmpty()) {
-            final var itemBinding = ItemMetadataTagsBinding.inflate(inflater, layout, false);
-
-            streamInfo.getTags().stream().sorted(String.CASE_INSENSITIVE_ORDER).forEach(tag -> {
-                final Chip chip = (Chip) inflater.inflate(R.layout.chip,
-                        itemBinding.metadataTagsChips, false);
-                chip.setText(tag);
-                chip.setOnClickListener(this::onTagClick);
-                chip.setOnLongClickListener(this::onTagLongClick);
-                itemBinding.metadataTagsChips.addView(chip);
-            });
-
-            layout.addView(itemBinding.getRoot());
-        }
-    }
-
-    private void onTagClick(final View chip) {
-        if (getParentFragment() != null) {
-            NavigationHelper.openSearchFragment(getParentFragment().getParentFragmentManager(),
-                    streamInfo.getServiceId(), ((Chip) chip).getText().toString());
-        }
-    }
-
-    private boolean onTagLongClick(final View chip) {
-        ShareUtils.copyToClipboard(requireContext(), ((Chip) chip).getText().toString());
-        return true;
+        addImagesMetadataItem(inflater, layout, R.string.metadata_thumbnails,
+                streamInfo.getThumbnails());
+        addImagesMetadataItem(inflater, layout, R.string.metadata_uploader_avatars,
+                streamInfo.getUploaderAvatars());
+        addImagesMetadataItem(inflater, layout, R.string.metadata_subchannel_avatars,
+                streamInfo.getSubChannelAvatars());
     }
 
     private void addPrivacyMetadataItem(final LayoutInflater inflater, final LinearLayout layout) {

app/src/main/java/org/schabi/newpipe/fragments/detail/VideoDetailFragment.java

@@ -24,7 +24,6 @@ import android.content.pm.ActivityInfo;
 import android.database.ContentObserver;
 import android.graphics.Color;
 import android.graphics.Rect;
-import android.graphics.drawable.Drawable;
 import android.net.Uri;
 import android.os.Build;
 import android.os.Bundle;
@@ -54,6 +53,7 @@ import androidx.appcompat.content.res.AppCompatResources;
 import androidx.appcompat.widget.Toolbar;
 import androidx.coordinatorlayout.widget.CoordinatorLayout;
 import androidx.core.content.ContextCompat;
+import androidx.fragment.app.Fragment;
 import androidx.preference.PreferenceManager;
 
 import com.google.android.exoplayer2.PlaybackException;
@@ -71,8 +71,9 @@ import org.schabi.newpipe.error.ErrorInfo;
 import org.schabi.newpipe.error.ErrorUtil;
 import org.schabi.newpipe.error.ReCaptchaActivity;
 import org.schabi.newpipe.error.UserAction;
-import org.schabi.newpipe.extractor.InfoItem;
+import org.schabi.newpipe.extractor.Image;
 import org.schabi.newpipe.extractor.NewPipe;
+import org.schabi.newpipe.extractor.comments.CommentsInfoItem;
 import org.schabi.newpipe.extractor.exceptions.ContentNotSupportedException;
 import org.schabi.newpipe.extractor.exceptions.ExtractionException;
 import org.schabi.newpipe.extractor.stream.AudioStream;
@@ -83,11 +84,13 @@ import org.schabi.newpipe.extractor.stream.VideoStream;
 import org.schabi.newpipe.fragments.BackPressable;
 import org.schabi.newpipe.fragments.BaseStateFragment;
 import org.schabi.newpipe.fragments.EmptyFragment;
+import org.schabi.newpipe.fragments.MainFragment;
 import org.schabi.newpipe.fragments.list.comments.CommentsFragment;
 import org.schabi.newpipe.fragments.list.videos.RelatedItemsFragment;
 import org.schabi.newpipe.ktx.AnimationType;
 import org.schabi.newpipe.local.dialog.PlaylistDialog;
 import org.schabi.newpipe.local.history.HistoryRecordManager;
+import org.schabi.newpipe.local.playlist.LocalPlaylistFragment;
 import org.schabi.newpipe.player.Player;
 import org.schabi.newpipe.player.PlayerService;
 import org.schabi.newpipe.player.PlayerType;
@@ -103,15 +106,17 @@ import org.schabi.newpipe.player.ui.VideoPlayerUi;
 import org.schabi.newpipe.util.Constants;
 import org.schabi.newpipe.util.DeviceUtils;
 import org.schabi.newpipe.util.ExtractorHelper;
+import org.schabi.newpipe.util.InfoCache;
 import org.schabi.newpipe.util.ListHelper;
 import org.schabi.newpipe.util.Localization;
 import org.schabi.newpipe.util.NavigationHelper;
 import org.schabi.newpipe.util.PermissionHelper;
-import org.schabi.newpipe.util.PicassoHelper;
+import org.schabi.newpipe.util.PlayButtonHelper;
 import org.schabi.newpipe.util.StreamTypeUtil;
 import org.schabi.newpipe.util.ThemeHelper;
 import org.schabi.newpipe.util.external_communication.KoreUtils;
 import org.schabi.newpipe.util.external_communication.ShareUtils;
+import org.schabi.newpipe.util.image.PicassoHelper;
 
 import java.util.ArrayList;
 import java.util.Iterator;
@@ -470,10 +475,23 @@ public final class VideoDetailFragment
 
         binding.detailControlsBackground.setOnClickListener(v -> openBackgroundPlayer(false));
         binding.detailControlsPopup.setOnClickListener(v -> openPopupPlayer(false));
-        binding.detailControlsPlaylistAppend.setOnClickListener(makeOnClickListener(info ->
+        binding.detailControlsPlaylistAppend.setOnClickListener(makeOnClickListener(info -> {
+            if (getFM() != null && currentInfo != null) {
+                final Fragment fragment = getParentFragmentManager().
+                        findFragmentById(R.id.fragment_holder);
+
+                // commit previous pending changes to database
+                if (fragment instanceof LocalPlaylistFragment) {
+                    ((LocalPlaylistFragment) fragment).saveImmediate();
+                } else if (fragment instanceof MainFragment) {
+                    ((MainFragment) fragment).commitPlaylistTabs();
+                }
+
                 disposables.add(PlaylistDialog.createCorrespondingDialog(requireContext(),
                         List.of(new StreamEntity(info)),
-                        dialog -> dialog.show(getParentFragmentManager(), TAG)))));
+                        dialog -> dialog.show(getParentFragmentManager(), TAG)));
+            }
+        }));
         binding.detailControlsDownload.setOnClickListener(v -> {
             if (PermissionHelper.checkStoragePermissions(activity,
                     PermissionHelper.DOWNLOAD_DIALOG_REQUEST_CODE)) {
@@ -482,7 +500,7 @@ public final class VideoDetailFragment
         });
         binding.detailControlsShare.setOnClickListener(makeOnClickListener(info ->
                 ShareUtils.shareText(requireContext(), info.getName(), info.getUrl(),
-                        info.getThumbnailUrl())));
+                        info.getThumbnails())));
         binding.detailControlsOpenInBrowser.setOnClickListener(makeOnClickListener(info ->
                 ShareUtils.openUrlInBrowser(requireContext(), info.getUrl())));
         binding.detailControlsPlayWithKodi.setOnClickListener(makeOnClickListener(info ->
@@ -535,9 +553,11 @@ public final class VideoDetailFragment
         }));
 
         binding.detailControlsBackground.setOnLongClickListener(makeOnLongClickListener(info ->
-                openBackgroundPlayer(true)));
+            openBackgroundPlayer(true)
+        ));
         binding.detailControlsPopup.setOnLongClickListener(makeOnLongClickListener(info ->
-                openPopupPlayer(true)));
+            openPopupPlayer(true)
+        ));
         binding.detailControlsDownload.setOnLongClickListener(makeOnLongClickListener(info ->
                 NavigationHelper.openDownloads(activity)));
 
@@ -620,8 +640,7 @@ public final class VideoDetailFragment
 
         final View.OnTouchListener controlsTouchListener = (view, motionEvent) -> {
             if (motionEvent.getAction() == MotionEvent.ACTION_DOWN
-                && PreferenceManager.getDefaultSharedPreferences(activity)
-                    .getBoolean(getString(R.string.show_hold_to_append_key), true)) {
+                    && PlayButtonHelper.shouldShowHoldToAppendTip(activity)) {
 
                 animate(binding.touchAppendDetail, true, 250, AnimationType.ALPHA, 0, () ->
                         animate(binding.touchAppendDetail, false, 1500, AnimationType.ALPHA, 1000));
@@ -721,7 +740,7 @@ public final class VideoDetailFragment
         final boolean isPlayerStopped = !isPlayerAvailable() || player.isStopped();
         if (playQueueItem != null && isPlayerStopped) {
             updateOverlayData(playQueueItem.getTitle(),
-                    playQueueItem.getUploader(), playQueueItem.getThumbnailUrl());
+                    playQueueItem.getUploader(), playQueueItem.getThumbnails());
         }
     }
 
@@ -994,6 +1013,20 @@ public final class VideoDetailFragment
         updateTabLayoutVisibility();
     }
 
+    public void scrollToComment(final CommentsInfoItem comment) {
+        final int commentsTabPos = pageAdapter.getItemPositionByTitle(COMMENTS_TAB_TAG);
+        final Fragment fragment = pageAdapter.getItem(commentsTabPos);
+        if (!(fragment instanceof CommentsFragment)) {
+            return;
+        }
+
+        // unexpand the app bar only if scrolling to the comment succeeded
+        if (((CommentsFragment) fragment).scrollToComment(comment)) {
+            binding.appBarLayout.setExpanded(false, false);
+            binding.viewPager.setCurrentItem(commentsTabPos, false);
+        }
+    }
+
     /*//////////////////////////////////////////////////////////////////////////
     // Play Utils
     //////////////////////////////////////////////////////////////////////////*/
@@ -1412,7 +1445,7 @@ public final class VideoDetailFragment
         super.showLoading();
 
         //if data is already cached, transition from VISIBLE -> INVISIBLE -> VISIBLE is not required
-        if (!ExtractorHelper.isCached(serviceId, url, InfoItem.InfoType.STREAM)) {
+        if (!ExtractorHelper.isCached(serviceId, url, InfoCache.Type.STREAM)) {
             binding.detailContentRootHiding.setVisibility(View.INVISIBLE);
         }
 
@@ -1463,11 +1496,6 @@ public final class VideoDetailFragment
             displayUploaderAsSubChannel(info);
         }
 
-        final Drawable buddyDrawable =
-                AppCompatResources.getDrawable(activity, R.drawable.placeholder_person);
-        binding.detailSubChannelThumbnailView.setImageDrawable(buddyDrawable);
-        binding.detailUploaderThumbnailView.setImageDrawable(buddyDrawable);
-
         if (info.getViewCount() >= 0) {
             if (info.getStreamType().equals(StreamType.AUDIO_LIVE_STREAM)) {
                 binding.detailViewCountView.setText(Localization.listeningCount(activity,
@@ -1534,13 +1562,13 @@ public final class VideoDetailFragment
         binding.detailSecondaryControlPanel.setVisibility(View.GONE);
 
         checkUpdateProgressInfo(info);
-        PicassoHelper.loadDetailsThumbnail(info.getThumbnailUrl()).tag(PICASSO_VIDEO_DETAILS_TAG)
+        PicassoHelper.loadDetailsThumbnail(info.getThumbnails()).tag(PICASSO_VIDEO_DETAILS_TAG)
                 .into(binding.detailThumbnailImageView);
         showMetaInfoInTextView(info.getMetaInfo(), binding.detailMetaInfoTextView,
                 binding.detailMetaInfoSeparator, disposables);
 
         if (!isPlayerAvailable() || player.isStopped()) {
-            updateOverlayData(info.getName(), info.getUploaderName(), info.getThumbnailUrl());
+            updateOverlayData(info.getName(), info.getUploaderName(), info.getThumbnails());
         }
 
         if (!info.getErrors().isEmpty()) {
@@ -1585,7 +1613,7 @@ public final class VideoDetailFragment
             binding.detailUploaderTextView.setVisibility(View.GONE);
         }
 
-        PicassoHelper.loadAvatar(info.getUploaderAvatarUrl()).tag(PICASSO_VIDEO_DETAILS_TAG)
+        PicassoHelper.loadAvatar(info.getUploaderAvatars()).tag(PICASSO_VIDEO_DETAILS_TAG)
                 .into(binding.detailSubChannelThumbnailView);
         binding.detailSubChannelThumbnailView.setVisibility(View.VISIBLE);
         binding.detailUploaderThumbnailView.setVisibility(View.GONE);
@@ -1617,10 +1645,10 @@ public final class VideoDetailFragment
             binding.detailUploaderTextView.setVisibility(View.GONE);
         }
 
-        PicassoHelper.loadAvatar(info.getSubChannelAvatarUrl()).tag(PICASSO_VIDEO_DETAILS_TAG)
+        PicassoHelper.loadAvatar(info.getSubChannelAvatars()).tag(PICASSO_VIDEO_DETAILS_TAG)
                 .into(binding.detailSubChannelThumbnailView);
         binding.detailSubChannelThumbnailView.setVisibility(View.VISIBLE);
-        PicassoHelper.loadAvatar(info.getUploaderAvatarUrl()).tag(PICASSO_VIDEO_DETAILS_TAG)
+        PicassoHelper.loadAvatar(info.getUploaderAvatars()).tag(PICASSO_VIDEO_DETAILS_TAG)
                 .into(binding.detailUploaderThumbnailView);
         binding.detailUploaderThumbnailView.setVisibility(View.VISIBLE);
     }
@@ -1795,7 +1823,7 @@ public final class VideoDetailFragment
             return;
         }
 
-        updateOverlayData(info.getName(), info.getUploaderName(), info.getThumbnailUrl());
+        updateOverlayData(info.getName(), info.getUploaderName(), info.getThumbnails());
         if (currentInfo != null && info.getUrl().equals(currentInfo.getUrl())) {
             return;
         }
@@ -1824,7 +1852,7 @@ public final class VideoDetailFragment
         if (currentInfo != null) {
             updateOverlayData(currentInfo.getName(),
                     currentInfo.getUploaderName(),
-                    currentInfo.getThumbnailUrl());
+                    currentInfo.getThumbnails());
         }
         updateOverlayPlayQueueButtonVisibility();
     }
@@ -2189,7 +2217,7 @@ public final class VideoDetailFragment
         playerHolder.stopService();
         setInitialData(0, null, "", null);
         currentInfo = null;
-        updateOverlayData(null, null, null);
+        updateOverlayData(null, null, List.of());
     }
 
     /*//////////////////////////////////////////////////////////////////////////
@@ -2371,11 +2399,11 @@ public final class VideoDetailFragment
 
     private void updateOverlayData(@Nullable final String overlayTitle,
                                    @Nullable final String uploader,
-                                   @Nullable final String thumbnailUrl) {
+                                   @NonNull final List<Image> thumbnails) {
         binding.overlayTitleTextView.setText(isEmpty(overlayTitle) ? "" : overlayTitle);
         binding.overlayChannelTextView.setText(isEmpty(uploader) ? "" : uploader);
         binding.overlayThumbnail.setImageDrawable(null);
-        PicassoHelper.loadDetailsThumbnail(thumbnailUrl).tag(PICASSO_VIDEO_DETAILS_TAG)
+        PicassoHelper.loadDetailsThumbnail(thumbnails).tag(PICASSO_VIDEO_DETAILS_TAG)
                 .into(binding.overlayThumbnail);
     }
 

app/src/main/java/org/schabi/newpipe/fragments/list/BaseListInfoFragment.java

@@ -1,5 +1,7 @@
 package org.schabi.newpipe.fragments.list;
 
+import static org.schabi.newpipe.extractor.ServiceList.SoundCloud;
+
 import android.os.Bundle;
 import android.text.TextUtils;
 import android.util.Log;
@@ -7,13 +9,13 @@ import android.view.View;
 
 import androidx.annotation.NonNull;
 
+import org.schabi.newpipe.R;
 import org.schabi.newpipe.error.ErrorInfo;
 import org.schabi.newpipe.error.UserAction;
 import org.schabi.newpipe.extractor.InfoItem;
 import org.schabi.newpipe.extractor.ListExtractor;
 import org.schabi.newpipe.extractor.ListInfo;
 import org.schabi.newpipe.extractor.Page;
-import org.schabi.newpipe.extractor.channel.ChannelInfo;
 import org.schabi.newpipe.extractor.exceptions.ContentNotSupportedException;
 import org.schabi.newpipe.util.Constants;
 import org.schabi.newpipe.views.NewPipeRecyclerView;
@@ -229,13 +231,11 @@ public abstract class BaseListInfoFragment<I extends InfoItem, L extends ListInf
             if (!result.getRelatedItems().isEmpty()) {
                 infoListAdapter.addInfoItemList(result.getRelatedItems());
                 showListFooter(hasMoreItems());
+            } else if (hasMoreItems()) {
+                loadMoreItems();
             } else {
                 infoListAdapter.clearStreamItemList();
-                // showEmptyState should be called only if there is no item as
-                // well as no header in infoListAdapter
-                if (!(result instanceof ChannelInfo && infoListAdapter.getItemCount() == 1)) {
-                    showEmptyState();
-                }
+                showEmptyState();
             }
         }
 
@@ -252,6 +252,20 @@ public abstract class BaseListInfoFragment<I extends InfoItem, L extends ListInf
         }
     }
 
+    @Override
+    public void showEmptyState() {
+        // show "no streams" for SoundCloud; otherwise "no videos"
+        // showing "no live streams" is handled in KioskFragment
+        if (emptyStateView != null) {
+            if (currentInfo.getService() == SoundCloud) {
+                setEmptyStateMessage(R.string.no_streams);
+            } else {
+                setEmptyStateMessage(R.string.no_videos);
+            }
+        }
+        super.showEmptyState();
+    }
+
     /*//////////////////////////////////////////////////////////////////////////
     // Utils
     //////////////////////////////////////////////////////////////////////////*/

app/src/main/java/org/schabi/newpipe/fragments/list/channel/ChannelAboutFragment.java

@@ -0,0 +1,94 @@
+package org.schabi.newpipe.fragments.list.channel;
+
+import static org.schabi.newpipe.extractor.stream.StreamExtractor.UNKNOWN_SUBSCRIBER_COUNT;
+
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.widget.LinearLayout;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+import org.schabi.newpipe.R;
+import org.schabi.newpipe.extractor.StreamingService;
+import org.schabi.newpipe.extractor.channel.ChannelInfo;
+import org.schabi.newpipe.extractor.stream.Description;
+import org.schabi.newpipe.fragments.detail.BaseDescriptionFragment;
+import org.schabi.newpipe.util.DeviceUtils;
+import org.schabi.newpipe.util.Localization;
+
+import java.util.List;
+
+import icepick.State;
+
+public class ChannelAboutFragment extends BaseDescriptionFragment {
+    @State
+    protected ChannelInfo channelInfo;
+
+    ChannelAboutFragment(@NonNull final ChannelInfo channelInfo) {
+        this.channelInfo = channelInfo;
+    }
+
+    public ChannelAboutFragment() {
+        // keep empty constructor for IcePick when resuming fragment from memory
+    }
+
+    @Override
+    protected void initViews(final View rootView, final Bundle savedInstanceState) {
+        super.initViews(rootView, savedInstanceState);
+        binding.constraintLayout.setPadding(0, DeviceUtils.dpToPx(8, requireContext()), 0, 0);
+    }
+
+    @Nullable
+    @Override
+    protected Description getDescription() {
+        return new Description(channelInfo.getDescription(), Description.PLAIN_TEXT);
+    }
+
+    @NonNull
+    @Override
+    protected StreamingService getService() {
+        return channelInfo.getService();
+    }
+
+    @Override
+    protected int getServiceId() {
+        return channelInfo.getServiceId();
+    }
+
+    @Nullable
+    @Override
+    protected String getStreamUrl() {
+        return null;
+    }
+
+    @NonNull
+    @Override
+    public List<String> getTags() {
+        return channelInfo.getTags();
+    }
+
+    @Override
+    protected void setupMetadata(final LayoutInflater inflater,
+                                 final LinearLayout layout) {
+        // There is no upload date available for channels, so hide the relevant UI element
+        binding.detailUploadDateView.setVisibility(View.GONE);
+
+        if (channelInfo == null) {
+            return;
+        }
+
+        if (channelInfo.getSubscriberCount() != UNKNOWN_SUBSCRIBER_COUNT) {
+            addMetadataItem(inflater, layout, false, R.string.metadata_subscribers,
+                    Localization.localizeNumber(
+                            requireContext(),
+                            channelInfo.getSubscriberCount()));
+        }
+
+        addImagesMetadataItem(inflater, layout, R.string.metadata_avatars,
+                channelInfo.getAvatars());
+        addImagesMetadataItem(inflater, layout, R.string.metadata_banners,
+                channelInfo.getBanners());
+    }
+}

app/src/main/java/org/schabi/newpipe/fragments/list/channel/ChannelFragment.java

@@ -5,6 +5,7 @@ import static org.schabi.newpipe.ktx.ViewUtils.animate;
 import static org.schabi.newpipe.ktx.ViewUtils.animateBackgroundColor;
 
 import android.content.Context;
+import android.content.SharedPreferences;
 import android.graphics.Color;
 import android.os.Bundle;
 import android.text.TextUtils;
@@ -16,51 +17,50 @@ import android.view.MenuInflater;
 import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
-import android.widget.Button;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
-import androidx.appcompat.app.ActionBar;
 import androidx.core.content.ContextCompat;
+import androidx.core.graphics.ColorUtils;
+import androidx.preference.PreferenceManager;
 
 import com.google.android.material.snackbar.Snackbar;
+import com.google.android.material.tabs.TabLayout;
 import com.jakewharton.rxbinding4.view.RxView;
 
 import org.schabi.newpipe.R;
 import org.schabi.newpipe.database.subscription.NotificationMode;
 import org.schabi.newpipe.database.subscription.SubscriptionEntity;
-import org.schabi.newpipe.databinding.ChannelHeaderBinding;
 import org.schabi.newpipe.databinding.FragmentChannelBinding;
-import org.schabi.newpipe.databinding.PlaylistControlBinding;
 import org.schabi.newpipe.error.ErrorInfo;
 import org.schabi.newpipe.error.ErrorUtil;
 import org.schabi.newpipe.error.UserAction;
-import org.schabi.newpipe.extractor.ListExtractor;
 import org.schabi.newpipe.extractor.channel.ChannelInfo;
 import org.schabi.newpipe.extractor.exceptions.ContentNotSupportedException;
-import org.schabi.newpipe.extractor.stream.StreamInfoItem;
-import org.schabi.newpipe.fragments.list.BaseListInfoFragment;
+import org.schabi.newpipe.extractor.linkhandler.ListLinkHandler;
+import org.schabi.newpipe.fragments.BaseStateFragment;
+import org.schabi.newpipe.fragments.detail.TabAdapter;
 import org.schabi.newpipe.ktx.AnimationType;
-import org.schabi.newpipe.local.subscription.SubscriptionManager;
 import org.schabi.newpipe.local.feed.notifications.NotificationHelper;
-import org.schabi.newpipe.player.PlayerType;
-import org.schabi.newpipe.player.playqueue.ChannelPlayQueue;
-import org.schabi.newpipe.player.playqueue.PlayQueue;
+import org.schabi.newpipe.local.subscription.SubscriptionManager;
+import org.schabi.newpipe.util.ChannelTabHelper;
+import org.schabi.newpipe.util.Constants;
 import org.schabi.newpipe.util.ExtractorHelper;
 import org.schabi.newpipe.util.Localization;
 import org.schabi.newpipe.util.NavigationHelper;
-import org.schabi.newpipe.util.PicassoHelper;
+import org.schabi.newpipe.util.StateSaver;
+import org.schabi.newpipe.util.image.ImageStrategy;
+import org.schabi.newpipe.util.image.PicassoHelper;
 import org.schabi.newpipe.util.ThemeHelper;
 import org.schabi.newpipe.util.external_communication.ShareUtils;
 
 import java.util.List;
+import java.util.Queue;
 import java.util.concurrent.TimeUnit;
-import java.util.function.Supplier;
-import java.util.stream.Collectors;
 
+import icepick.State;
 import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers;
 import io.reactivex.rxjava3.core.Observable;
-import io.reactivex.rxjava3.core.Single;
 import io.reactivex.rxjava3.disposables.CompositeDisposable;
 import io.reactivex.rxjava3.disposables.Disposable;
 import io.reactivex.rxjava3.functions.Action;
@@ -68,29 +68,37 @@ import io.reactivex.rxjava3.functions.Consumer;
 import io.reactivex.rxjava3.functions.Function;
 import io.reactivex.rxjava3.schedulers.Schedulers;
 
-public class ChannelFragment extends BaseListInfoFragment<StreamInfoItem, ChannelInfo>
-        implements View.OnClickListener {
+public class ChannelFragment extends BaseStateFragment<ChannelInfo>
+        implements StateSaver.WriteRead {
 
     private static final int BUTTON_DEBOUNCE_INTERVAL = 100;
     private static final String PICASSO_CHANNEL_TAG = "PICASSO_CHANNEL_TAG";
 
+    @State
+    protected int serviceId = Constants.NO_SERVICE_ID;
+    @State
+    protected String name;
+    @State
+    protected String url;
+
+    private ChannelInfo currentInfo;
+    private Disposable currentWorker;
     private final CompositeDisposable disposables = new CompositeDisposable();
     private Disposable subscribeButtonMonitor;
-
+    private SubscriptionManager subscriptionManager;
+    private int lastTab;
     private boolean channelContentNotSupported = false;
 
     /*//////////////////////////////////////////////////////////////////////////
     // Views
     //////////////////////////////////////////////////////////////////////////*/
 
-    private SubscriptionManager subscriptionManager;
-
-    private FragmentChannelBinding channelBinding;
-    private ChannelHeaderBinding headerBinding;
-    private PlaylistControlBinding playlistControlBinding;
+    private FragmentChannelBinding binding;
+    private TabAdapter tabAdapter;
 
     private MenuItem menuRssButton;
     private MenuItem menuNotifyButton;
+    private SubscriptionEntity channelSubscription;
 
     public static ChannelFragment getInstance(final int serviceId, final String url,
                                               final String name) {
@@ -99,22 +107,23 @@ public class ChannelFragment extends BaseListInfoFragment<StreamInfoItem, Channe
         return instance;
     }
 
-    public ChannelFragment() {
-        super(UserAction.REQUESTED_CHANNEL);
+    private void setInitialData(final int sid, final String u, final String title) {
+        this.serviceId = sid;
+        this.url = u;
+        this.name = !TextUtils.isEmpty(title) ? title : "";
     }
 
-    @Override
-    public void onResume() {
-        super.onResume();
-        if (activity != null && useAsFrontPage) {
-            setTitle(currentInfo != null ? currentInfo.getName() : name);
-        }
-    }
 
     /*//////////////////////////////////////////////////////////////////////////
     // LifeCycle
     //////////////////////////////////////////////////////////////////////////*/
 
+    @Override
+    public void onCreate(final Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setHasOptionsMenu(true);
+    }
+
     @Override
     public void onAttach(@NonNull final Context context) {
         super.onAttach(context);
@@ -125,49 +134,58 @@ public class ChannelFragment extends BaseListInfoFragment<StreamInfoItem, Channe
     public View onCreateView(@NonNull final LayoutInflater inflater,
                              @Nullable final ViewGroup container,
                              @Nullable final Bundle savedInstanceState) {
-        return inflater.inflate(R.layout.fragment_channel, container, false);
+        binding = FragmentChannelBinding.inflate(inflater, container, false);
+        return binding.getRoot();
     }
 
-    @Override
-    public void onViewCreated(@NonNull final View rootView, final Bundle savedInstanceState) {
-        super.onViewCreated(rootView, savedInstanceState);
-        channelBinding = FragmentChannelBinding.bind(rootView);
-        showContentNotSupportedIfNeeded();
-    }
+    @Override // called from onViewCreated in BaseFragment.onViewCreated
+    protected void initViews(final View rootView, final Bundle savedInstanceState) {
+        super.initViews(rootView, savedInstanceState);
 
-    @Override
-    public void onDestroy() {
-        super.onDestroy();
-        disposables.clear();
-        if (subscribeButtonMonitor != null) {
-            subscribeButtonMonitor.dispose();
+        tabAdapter = new TabAdapter(getChildFragmentManager());
+        binding.viewPager.setAdapter(tabAdapter);
+        binding.tabLayout.setupWithViewPager(binding.viewPager);
+
+        setTitle(name);
+        binding.channelTitleView.setText(name);
+        if (!ImageStrategy.shouldLoadImages()) {
+            // do not waste space for the banner if it is not going to be loaded
+            binding.channelBannerImage.setImageDrawable(null);
         }
-        channelBinding = null;
-        headerBinding = null;
-        playlistControlBinding = null;
-    }
-
-    /*//////////////////////////////////////////////////////////////////////////
-    // Init
-    //////////////////////////////////////////////////////////////////////////*/
-
-    @Override
-    protected Supplier<View> getListHeaderSupplier() {
-        headerBinding = ChannelHeaderBinding
-                .inflate(activity.getLayoutInflater(), itemsList, false);
-        playlistControlBinding = headerBinding.playlistControl;
-
-        return headerBinding::getRoot;
     }
 
     @Override
     protected void initListeners() {
         super.initListeners();
 
-        headerBinding.subChannelTitleView.setOnClickListener(this);
-        headerBinding.subChannelAvatarView.setOnClickListener(this);
+        final View.OnClickListener openSubChannel = v -> {
+            if (!TextUtils.isEmpty(currentInfo.getParentChannelUrl())) {
+                try {
+                    NavigationHelper.openChannelFragment(getFM(), currentInfo.getServiceId(),
+                            currentInfo.getParentChannelUrl(),
+                            currentInfo.getParentChannelName());
+                } catch (final Exception e) {
+                    ErrorUtil.showUiErrorSnackbar(this, "Opening channel fragment", e);
+                }
+            } else if (DEBUG) {
+                Log.i(TAG, "Can't open parent channel because we got no channel URL");
+            }
+        };
+        binding.subChannelAvatarView.setOnClickListener(openSubChannel);
+        binding.subChannelTitleView.setOnClickListener(openSubChannel);
     }
 
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+        if (currentWorker != null) {
+            currentWorker.dispose();
+        }
+        disposables.clear();
+        binding = null;
+    }
+
+
     /*//////////////////////////////////////////////////////////////////////////
     // Menu
     //////////////////////////////////////////////////////////////////////////*/
@@ -176,32 +194,33 @@ public class ChannelFragment extends BaseListInfoFragment<StreamInfoItem, Channe
     public void onCreateOptionsMenu(@NonNull final Menu menu,
                                     @NonNull final MenuInflater inflater) {
         super.onCreateOptionsMenu(menu, inflater);
-        final ActionBar supportActionBar = activity.getSupportActionBar();
-        if (useAsFrontPage && supportActionBar != null) {
-            supportActionBar.setDisplayHomeAsUpEnabled(false);
-        } else {
-            inflater.inflate(R.menu.menu_channel, menu);
+        inflater.inflate(R.menu.menu_channel, menu);
 
-            if (DEBUG) {
-                Log.d(TAG, "onCreateOptionsMenu() called with: "
-                        + "menu = [" + menu + "], inflater = [" + inflater + "]");
-            }
-            menuRssButton = menu.findItem(R.id.menu_item_rss);
-            menuNotifyButton = menu.findItem(R.id.menu_item_notify);
+        if (DEBUG) {
+            Log.d(TAG, "onCreateOptionsMenu() called with: "
+                    + "menu = [" + menu + "], inflater = [" + inflater + "]");
         }
     }
 
     @Override
-    public boolean onOptionsItemSelected(final MenuItem item) {
+    public void onPrepareOptionsMenu(@NonNull final Menu menu) {
+        super.onPrepareOptionsMenu(menu);
+        menuRssButton = menu.findItem(R.id.menu_item_rss);
+        menuNotifyButton = menu.findItem(R.id.menu_item_notify);
+        updateNotifyButton(channelSubscription);
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(@NonNull final MenuItem item) {
         switch (item.getItemId()) {
-            case R.id.action_settings:
-                NavigationHelper.openSettings(requireContext());
-                break;
             case R.id.menu_item_notify:
                 final boolean value = !item.isChecked();
                 item.setEnabled(false);
                 setNotify(value);
                 break;
+            case R.id.action_settings:
+                NavigationHelper.openSettings(requireContext());
+                break;
             case R.id.menu_item_rss:
                 if (currentInfo != null) {
                     ShareUtils.openUrlInApp(requireContext(), currentInfo.getFeedUrl());
@@ -215,7 +234,7 @@ public class ChannelFragment extends BaseListInfoFragment<StreamInfoItem, Channe
             case R.id.menu_item_share:
                 if (currentInfo != null) {
                     ShareUtils.shareText(requireContext(), name, currentInfo.getOriginalUrl(),
-                            currentInfo.getAvatarUrl());
+                            currentInfo.getAvatars());
                 }
                 break;
             default:
@@ -224,13 +243,14 @@ public class ChannelFragment extends BaseListInfoFragment<StreamInfoItem, Channe
         return true;
     }
 
+
     /*//////////////////////////////////////////////////////////////////////////
     // Channel Subscription
     //////////////////////////////////////////////////////////////////////////*/
 
     private void monitorSubscription(final ChannelInfo info) {
         final Consumer<Throwable> onError = (Throwable throwable) -> {
-            animate(headerBinding.channelSubscribeButton, false, 100);
+            animate(binding.channelSubscribeButton, false, 100);
             showSnackBarError(new ErrorInfo(throwable, UserAction.SUBSCRIPTION_GET,
                     "Get subscription status", currentInfo));
         };
@@ -263,10 +283,9 @@ public class ChannelFragment extends BaseListInfoFragment<StreamInfoItem, Channe
                 }, onError));
     }
 
-    private Function<Object, Object> mapOnSubscribe(final SubscriptionEntity subscription,
-                                                    final ChannelInfo info) {
+    private Function<Object, Object> mapOnSubscribe(final SubscriptionEntity subscription) {
         return (@NonNull Object o) -> {
-            subscriptionManager.insertSubscription(subscription, info);
+            subscriptionManager.insertSubscription(subscription);
             return o;
         };
     }
@@ -298,8 +317,7 @@ public class ChannelFragment extends BaseListInfoFragment<StreamInfoItem, Channe
                 .subscribe(onComplete, onError));
     }
 
-    private Disposable monitorSubscribeButton(final Button subscribeButton,
-                                              final Function<Object, Object> action) {
+    private Disposable monitorSubscribeButton(final Function<Object, Object> action) {
         final Consumer<Object> onNext = (@NonNull Object o) -> {
             if (DEBUG) {
                 Log.d(TAG, "Changed subscription status to this channel!");
@@ -311,7 +329,7 @@ public class ChannelFragment extends BaseListInfoFragment<StreamInfoItem, Channe
                         "Changing subscription for " + currentInfo.getUrl(), currentInfo));
 
         /* Emit clicks from main thread unto io thread */
-        return RxView.clicks(subscribeButton)
+        return RxView.clicks(binding.channelSubscribeButton)
                 .subscribeOn(AndroidSchedulers.mainThread())
                 .observeOn(Schedulers.io())
                 .debounce(BUTTON_DEBOUNCE_INTERVAL, TimeUnit.MILLISECONDS) // Ignore rapid clicks
@@ -337,20 +355,20 @@ public class ChannelFragment extends BaseListInfoFragment<StreamInfoItem, Channe
                 channel.setServiceId(info.getServiceId());
                 channel.setUrl(info.getUrl());
                 channel.setData(info.getName(),
-                        info.getAvatarUrl(),
+                        ImageStrategy.imageListToDbUrl(info.getAvatars()),
                         info.getDescription(),
                         info.getSubscriberCount());
+                channelSubscription = null;
                 updateNotifyButton(null);
-                subscribeButtonMonitor = monitorSubscribeButton(
-                        headerBinding.channelSubscribeButton, mapOnSubscribe(channel, info));
+                subscribeButtonMonitor = monitorSubscribeButton(mapOnSubscribe(channel));
             } else {
                 if (DEBUG) {
                     Log.d(TAG, "Found subscription to this channel!");
                 }
-                final SubscriptionEntity subscription = subscriptionEntities.get(0);
-                updateNotifyButton(subscription);
-                subscribeButtonMonitor = monitorSubscribeButton(
-                        headerBinding.channelSubscribeButton, mapOnUnsubscribe(subscription));
+                channelSubscription = subscriptionEntities.get(0);
+                updateNotifyButton(channelSubscription);
+                subscribeButtonMonitor =
+                        monitorSubscribeButton(mapOnUnsubscribe(channelSubscription));
             }
         };
     }
@@ -361,34 +379,33 @@ public class ChannelFragment extends BaseListInfoFragment<StreamInfoItem, Channe
                     + "isSubscribed = [" + isSubscribed + "]");
         }
 
-        final boolean isButtonVisible = headerBinding.channelSubscribeButton.getVisibility()
+        final boolean isButtonVisible = binding.channelSubscribeButton.getVisibility()
                 == View.VISIBLE;
         final int backgroundDuration = isButtonVisible ? 300 : 0;
         final int textDuration = isButtonVisible ? 200 : 0;
 
-        final int subscribeBackground = ThemeHelper
-                .resolveColorFromAttr(activity, R.attr.colorPrimary);
-        final int subscribeText = ContextCompat.getColor(activity, R.color.subscribe_text_color);
         final int subscribedBackground = ContextCompat
                 .getColor(activity, R.color.subscribed_background_color);
         final int subscribedText = ContextCompat.getColor(activity, R.color.subscribed_text_color);
+        final int subscribeBackground = ColorUtils.blendARGB(ThemeHelper
+                .resolveColorFromAttr(activity, R.attr.colorPrimary), subscribedBackground, 0.35f);
+        final int subscribeText = ContextCompat.getColor(activity, R.color.subscribe_text_color);
 
-        if (!isSubscribed) {
-            headerBinding.channelSubscribeButton.setText(R.string.subscribe_button_title);
-            animateBackgroundColor(headerBinding.channelSubscribeButton, backgroundDuration,
-                    subscribedBackground, subscribeBackground);
-            animateTextColor(headerBinding.channelSubscribeButton, textDuration, subscribedText,
-                    subscribeText);
-        } else {
-            headerBinding.channelSubscribeButton.setText(R.string.subscribed_button_title);
-            animateBackgroundColor(headerBinding.channelSubscribeButton, backgroundDuration,
+        if (isSubscribed) {
+            binding.channelSubscribeButton.setText(R.string.subscribed_button_title);
+            animateBackgroundColor(binding.channelSubscribeButton, backgroundDuration,
                     subscribeBackground, subscribedBackground);
-            animateTextColor(headerBinding.channelSubscribeButton, textDuration, subscribeText,
+            animateTextColor(binding.channelSubscribeButton, textDuration, subscribeText,
                     subscribedText);
+        } else {
+            binding.channelSubscribeButton.setText(R.string.subscribe_button_title);
+            animateBackgroundColor(binding.channelSubscribeButton, backgroundDuration,
+                    subscribedBackground, subscribeBackground);
+            animateTextColor(binding.channelSubscribeButton, textDuration, subscribedText,
+                    subscribeText);
         }
 
-        animate(headerBinding.channelSubscribeButton, true, 100,
-                AnimationType.LIGHT_SCALE_AND_ALPHA);
+        animate(binding.channelSubscribeButton, true, 100, AnimationType.LIGHT_SCALE_AND_ALPHA);
     }
 
     private void updateNotifyButton(@Nullable final SubscriptionEntity subscription) {
@@ -424,108 +441,179 @@ public class ChannelFragment extends BaseListInfoFragment<StreamInfoItem, Channe
      * Show a snackbar with the option to enable notifications on new streams for this channel.
      */
     private void showNotifySnackbar() {
-        Snackbar.make(itemsList, R.string.you_successfully_subscribed, Snackbar.LENGTH_LONG)
+        Snackbar.make(binding.getRoot(), R.string.you_successfully_subscribed, Snackbar.LENGTH_LONG)
                 .setAction(R.string.get_notified, v -> setNotify(true))
                 .setActionTextColor(Color.YELLOW)
                 .show();
     }
 
-    /*//////////////////////////////////////////////////////////////////////////
-    // Load and handle
-    //////////////////////////////////////////////////////////////////////////*/
-
-    @Override
-    protected Single<ListExtractor.InfoItemsPage<StreamInfoItem>> loadMoreItemsLogic() {
-        return ExtractorHelper.getMoreChannelItems(serviceId, url, currentNextPage);
-    }
-
-    @Override
-    protected Single<ChannelInfo> loadResult(final boolean forceLoad) {
-        return ExtractorHelper.getChannelInfo(serviceId, url, forceLoad);
-    }
 
     /*//////////////////////////////////////////////////////////////////////////
-    // OnClick
+    // Init
     //////////////////////////////////////////////////////////////////////////*/
 
-    @Override
-    public void onClick(final View v) {
-        if (isLoading.get() || currentInfo == null) {
-            return;
-        }
+    private void updateTabs() {
+        tabAdapter.clearAllItems();
 
-        switch (v.getId()) {
-            case R.id.sub_channel_avatar_view:
-            case R.id.sub_channel_title_view:
-                if (!TextUtils.isEmpty(currentInfo.getParentChannelUrl())) {
-                    try {
-                        NavigationHelper.openChannelFragment(getFM(), currentInfo.getServiceId(),
-                                currentInfo.getParentChannelUrl(),
-                                currentInfo.getParentChannelName());
-                    } catch (final Exception e) {
-                        ErrorUtil.showUiErrorSnackbar(this, "Opening channel fragment", e);
-                    }
-                } else if (DEBUG) {
-                    Log.i(TAG, "Can't open parent channel because we got no channel URL");
+        if (currentInfo != null && !channelContentNotSupported) {
+            final Context context = requireContext();
+            final SharedPreferences preferences = PreferenceManager
+                    .getDefaultSharedPreferences(context);
+
+            for (final ListLinkHandler linkHandler : currentInfo.getTabs()) {
+                final String tab = linkHandler.getContentFilters().get(0);
+                if (ChannelTabHelper.showChannelTab(context, preferences, tab)) {
+                    final ChannelTabFragment channelTabFragment =
+                            ChannelTabFragment.getInstance(serviceId, linkHandler, name);
+                    channelTabFragment.useAsFrontPage(useAsFrontPage);
+                    tabAdapter.addFragment(channelTabFragment,
+                            context.getString(ChannelTabHelper.getTranslationKey(tab)));
                 }
-                break;
+            }
+
+            if (ChannelTabHelper.showChannelTab(
+                    context, preferences, R.string.show_channel_tabs_about)) {
+                tabAdapter.addFragment(
+                        new ChannelAboutFragment(currentInfo),
+                        context.getString(R.string.channel_tab_about));
+            }
+        }
+
+        tabAdapter.notifyDataSetUpdate();
+
+        for (int i = 0; i < tabAdapter.getCount(); i++) {
+            binding.tabLayout.getTabAt(i).setText(tabAdapter.getItemTitle(i));
+        }
+
+        // Restore previously selected tab
+        final TabLayout.Tab ltab = binding.tabLayout.getTabAt(lastTab);
+        if (ltab != null) {
+            binding.tabLayout.selectTab(ltab);
         }
     }
 
+
+    /*//////////////////////////////////////////////////////////////////////////
+    // State Saving
+    //////////////////////////////////////////////////////////////////////////*/
+
+    @Override
+    public String generateSuffix() {
+        return null;
+    }
+
+    @Override
+    public void writeTo(final Queue<Object> objectsToSave) {
+        objectsToSave.add(currentInfo);
+        objectsToSave.add(binding == null ? 0 : binding.tabLayout.getSelectedTabPosition());
+    }
+
+    @Override
+    public void readFrom(@NonNull final Queue<Object> savedObjects) {
+        currentInfo = (ChannelInfo) savedObjects.poll();
+        lastTab = (Integer) savedObjects.poll();
+    }
+
+    @Override
+    public void onSaveInstanceState(final @NonNull Bundle outState) {
+        super.onSaveInstanceState(outState);
+        if (binding != null) {
+            outState.putInt("LastTab", binding.tabLayout.getSelectedTabPosition());
+        }
+    }
+
+    @Override
+    protected void onRestoreInstanceState(@NonNull final Bundle savedInstanceState) {
+        super.onRestoreInstanceState(savedInstanceState);
+        lastTab = savedInstanceState.getInt("LastTab", 0);
+    }
+
+
     /*//////////////////////////////////////////////////////////////////////////
     // Contract
     //////////////////////////////////////////////////////////////////////////*/
 
+    @Override
+    protected void doInitialLoadLogic() {
+        if (currentInfo == null) {
+            startLoading(false);
+        } else {
+            handleResult(currentInfo);
+        }
+    }
+
+    @Override
+    public void startLoading(final boolean forceLoad) {
+        super.startLoading(forceLoad);
+
+        currentInfo = null;
+        updateTabs();
+        if (currentWorker != null) {
+            currentWorker.dispose();
+        }
+
+        runWorker(forceLoad);
+    }
+
+    private void runWorker(final boolean forceLoad) {
+        currentWorker = ExtractorHelper.getChannelInfo(serviceId, url, forceLoad)
+                .subscribeOn(Schedulers.io())
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribe(result -> {
+                    isLoading.set(false);
+                    handleResult(result);
+                }, throwable -> showError(new ErrorInfo(throwable, UserAction.REQUESTED_CHANNEL,
+                        url == null ? "No URL" : url, serviceId)));
+    }
+
     @Override
     public void showLoading() {
         super.showLoading();
         PicassoHelper.cancelTag(PICASSO_CHANNEL_TAG);
-        animate(headerBinding.channelSubscribeButton, false, 100);
+        animate(binding.channelSubscribeButton, false, 100);
     }
 
     @Override
     public void handleResult(@NonNull final ChannelInfo result) {
         super.handleResult(result);
+        currentInfo = result;
+        setInitialData(result.getServiceId(), result.getOriginalUrl(), result.getName());
 
-        headerBinding.getRoot().setVisibility(View.VISIBLE);
-        PicassoHelper.loadBanner(result.getBannerUrl()).tag(PICASSO_CHANNEL_TAG)
-                .into(headerBinding.channelBannerImage);
-        PicassoHelper.loadAvatar(result.getAvatarUrl()).tag(PICASSO_CHANNEL_TAG)
-                .into(headerBinding.channelAvatarView);
-        PicassoHelper.loadAvatar(result.getParentChannelAvatarUrl()).tag(PICASSO_CHANNEL_TAG)
-                .into(headerBinding.subChannelAvatarView);
+        if (ImageStrategy.shouldLoadImages() && !result.getBanners().isEmpty()) {
+            PicassoHelper.loadBanner(result.getBanners()).tag(PICASSO_CHANNEL_TAG)
+                    .into(binding.channelBannerImage);
+        } else {
+            // do not waste space for the banner, if the user disabled images or there is not one
+            binding.channelBannerImage.setImageDrawable(null);
+        }
 
-        headerBinding.channelSubscriberView.setVisibility(View.VISIBLE);
+        PicassoHelper.loadAvatar(result.getAvatars()).tag(PICASSO_CHANNEL_TAG)
+                .into(binding.channelAvatarView);
+        PicassoHelper.loadAvatar(result.getParentChannelAvatars()).tag(PICASSO_CHANNEL_TAG)
+                .into(binding.subChannelAvatarView);
+
+        binding.channelTitleView.setText(result.getName());
+        binding.channelSubscriberView.setVisibility(View.VISIBLE);
         if (result.getSubscriberCount() >= 0) {
-            headerBinding.channelSubscriberView.setText(Localization
+            binding.channelSubscriberView.setText(Localization
                     .shortSubscriberCount(activity, result.getSubscriberCount()));
         } else {
-            headerBinding.channelSubscriberView.setText(R.string.subscribers_count_not_available);
+            binding.channelSubscriberView.setText(R.string.subscribers_count_not_available);
         }
 
         if (!TextUtils.isEmpty(currentInfo.getParentChannelName())) {
-            headerBinding.subChannelTitleView.setText(String.format(
+            binding.subChannelTitleView.setText(String.format(
                     getString(R.string.channel_created_by),
                     currentInfo.getParentChannelName())
             );
-            headerBinding.subChannelTitleView.setVisibility(View.VISIBLE);
-            headerBinding.subChannelAvatarView.setVisibility(View.VISIBLE);
-        } else {
-            headerBinding.subChannelTitleView.setVisibility(View.GONE);
+            binding.subChannelTitleView.setVisibility(View.VISIBLE);
+            binding.subChannelAvatarView.setVisibility(View.VISIBLE);
         }
 
         if (menuRssButton != null) {
             menuRssButton.setVisible(!TextUtils.isEmpty(result.getFeedUrl()));
         }
 
-        // PlaylistControls should be visible only if there is some item in
-        // infoListAdapter other than header
-        if (infoListAdapter.getItemCount() != 1) {
-            playlistControlBinding.getRoot().setVisibility(View.VISIBLE);
-        } else {
-            playlistControlBinding.getRoot().setVisibility(View.GONE);
-        }
-
         channelContentNotSupported = false;
         for (final Throwable throwable : result.getErrors()) {
             if (throwable instanceof ContentNotSupportedException) {
@@ -539,62 +627,21 @@ public class ChannelFragment extends BaseListInfoFragment<StreamInfoItem, Channe
         if (subscribeButtonMonitor != null) {
             subscribeButtonMonitor.dispose();
         }
+
+        updateTabs();
         updateSubscription(result);
         monitorSubscription(result);
-
-        playlistControlBinding.playlistCtrlPlayAllButton
-                .setOnClickListener(view -> NavigationHelper
-                        .playOnMainPlayer(activity, getPlayQueue()));
-        playlistControlBinding.playlistCtrlPlayPopupButton
-                .setOnClickListener(view -> NavigationHelper
-                        .playOnPopupPlayer(activity, getPlayQueue(), false));
-        playlistControlBinding.playlistCtrlPlayBgButton
-                .setOnClickListener(view -> NavigationHelper
-                        .playOnBackgroundPlayer(activity, getPlayQueue(), false));
-
-        playlistControlBinding.playlistCtrlPlayPopupButton.setOnLongClickListener(view -> {
-            NavigationHelper.enqueueOnPlayer(activity, getPlayQueue(), PlayerType.POPUP);
-            return true;
-        });
-
-        playlistControlBinding.playlistCtrlPlayBgButton.setOnLongClickListener(view -> {
-            NavigationHelper.enqueueOnPlayer(activity, getPlayQueue(), PlayerType.AUDIO);
-            return true;
-        });
     }
 
     private void showContentNotSupportedIfNeeded() {
         // channelBinding might not be initialized when handleResult() is called
         // (e.g. after rotating the screen, #6696)
-        if (!channelContentNotSupported || channelBinding == null) {
+        if (!channelContentNotSupported || binding == null) {
             return;
         }
 
-        channelBinding.errorContentNotSupported.setVisibility(View.VISIBLE);
-        channelBinding.channelKaomoji.setText("(︶︹︺)");
-        channelBinding.channelKaomoji.setTextSize(TypedValue.COMPLEX_UNIT_SP, 45f);
-        channelBinding.channelNoVideos.setVisibility(View.GONE);
-    }
-
-    private PlayQueue getPlayQueue() {
-        final List<StreamInfoItem> streamItems = infoListAdapter.getItemsList().stream()
-                .filter(StreamInfoItem.class::isInstance)
-                .map(StreamInfoItem.class::cast)
-                .collect(Collectors.toList());
-
-        return new ChannelPlayQueue(currentInfo.getServiceId(), currentInfo.getUrl(),
-                currentInfo.getNextPage(), streamItems, 0);
-    }
-
-    /*//////////////////////////////////////////////////////////////////////////
-    // Utils
-    //////////////////////////////////////////////////////////////////////////*/
-
-    @Override
-    public void setTitle(final String title) {
-        super.setTitle(title);
-        if (!useAsFrontPage) {
-            headerBinding.channelTitleView.setText(title);
-        }
+        binding.errorContentNotSupported.setVisibility(View.VISIBLE);
+        binding.channelKaomoji.setText("(︶︹︺)");
+        binding.channelKaomoji.setTextSize(TypedValue.COMPLEX_UNIT_SP, 45f);
     }
 }

app/src/main/java/org/schabi/newpipe/fragments/list/channel/ChannelTabFragment.java

@@ -0,0 +1,168 @@
+package org.schabi.newpipe.fragments.list.channel;
+
+import android.os.Bundle;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+import org.schabi.newpipe.R;
+import org.schabi.newpipe.databinding.PlaylistControlBinding;
+import org.schabi.newpipe.error.UserAction;
+import org.schabi.newpipe.extractor.InfoItem;
+import org.schabi.newpipe.extractor.ListExtractor;
+import org.schabi.newpipe.extractor.channel.tabs.ChannelTabInfo;
+import org.schabi.newpipe.extractor.exceptions.ParsingException;
+import org.schabi.newpipe.extractor.linkhandler.ListLinkHandler;
+import org.schabi.newpipe.extractor.linkhandler.ListLinkHandlerFactory;
+import org.schabi.newpipe.extractor.linkhandler.ReadyChannelTabListLinkHandler;
+import org.schabi.newpipe.extractor.stream.StreamInfoItem;
+import org.schabi.newpipe.fragments.list.BaseListInfoFragment;
+import org.schabi.newpipe.fragments.list.playlist.PlaylistControlViewHolder;
+import org.schabi.newpipe.player.playqueue.ChannelTabPlayQueue;
+import org.schabi.newpipe.player.playqueue.PlayQueue;
+import org.schabi.newpipe.util.ChannelTabHelper;
+import org.schabi.newpipe.util.ExtractorHelper;
+import org.schabi.newpipe.util.PlayButtonHelper;
+
+import java.util.List;
+import java.util.function.Supplier;
+import java.util.stream.Collectors;
+
+import icepick.State;
+import io.reactivex.rxjava3.core.Single;
+
+public class ChannelTabFragment extends BaseListInfoFragment<InfoItem, ChannelTabInfo>
+        implements PlaylistControlViewHolder {
+
+    // states must be protected and not private for IcePick being able to access them
+    @State
+    protected ListLinkHandler tabHandler;
+    @State
+    protected String channelName;
+
+    private PlaylistControlBinding playlistControlBinding;
+
+    @NonNull
+    public static ChannelTabFragment getInstance(final int serviceId,
+                                                 final ListLinkHandler tabHandler,
+                                                 final String channelName) {
+        final ChannelTabFragment instance = new ChannelTabFragment();
+        instance.serviceId = serviceId;
+        instance.tabHandler = tabHandler;
+        instance.channelName = channelName;
+        return instance;
+    }
+
+    public ChannelTabFragment() {
+        super(UserAction.REQUESTED_CHANNEL);
+    }
+
+    /*//////////////////////////////////////////////////////////////////////////
+    // LifeCycle
+    //////////////////////////////////////////////////////////////////////////*/
+
+    @Override
+    public void onCreate(final Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setHasOptionsMenu(false);
+    }
+
+    @Override
+    public View onCreateView(@NonNull final LayoutInflater inflater,
+                             @Nullable final ViewGroup container,
+                             @Nullable final Bundle savedInstanceState) {
+        return inflater.inflate(R.layout.fragment_channel_tab, container, false);
+    }
+
+    @Override
+    public void onDestroyView() {
+        super.onDestroyView();
+        playlistControlBinding = null;
+    }
+
+    @Override
+    protected Supplier<View> getListHeaderSupplier() {
+        if (ChannelTabHelper.isStreamsTab(tabHandler)) {
+            playlistControlBinding = PlaylistControlBinding
+                    .inflate(activity.getLayoutInflater(), itemsList, false);
+            return playlistControlBinding::getRoot;
+        }
+        return null;
+    }
+
+    @Override
+    protected Single<ChannelTabInfo> loadResult(final boolean forceLoad) {
+        return ExtractorHelper.getChannelTab(serviceId, tabHandler, forceLoad);
+    }
+
+    @Override
+    protected Single<ListExtractor.InfoItemsPage<InfoItem>> loadMoreItemsLogic() {
+        return ExtractorHelper.getMoreChannelTabItems(serviceId, tabHandler, currentNextPage);
+    }
+
+    @Override
+    public void setTitle(final String title) {
+        // The channel name is displayed as title in the toolbar.
+        // The title is always a description of the content of the tab fragment.
+        // It should be unique for each channel because multiple channel tabs
+        // can be added to the main page. Therefore, the channel name is used.
+        // Using the title variable would cause the title to be the same for all channel tabs.
+        super.setTitle(channelName);
+    }
+
+    @Override
+    public void handleResult(@NonNull final ChannelTabInfo result) {
+        super.handleResult(result);
+
+        // FIXME this is a really hacky workaround, to avoid storing useless data in the fragment
+        //  state. The problem is, `ReadyChannelTabListLinkHandler` might contain raw JSON data that
+        //  uses a lot of memory (e.g. ~800KB for YouTube). While 800KB doesn't seem much, if
+        //  you combine just a couple of channel tab fragments you easily go over the 1MB
+        //  save&restore transaction limit, and get `TransactionTooLargeException`s. A proper
+        //  solution would require rethinking about `ReadyChannelTabListLinkHandler`s.
+        if (tabHandler instanceof ReadyChannelTabListLinkHandler) {
+            try {
+                // once `handleResult` is called, the parsed data was already saved to cache, so
+                // we can discard any raw data in ReadyChannelTabListLinkHandler and create a
+                // link handler with identical properties, but without any raw data
+                final ListLinkHandlerFactory channelTabLHFactory = result.getService()
+                        .getChannelTabLHFactory();
+                if (channelTabLHFactory != null) {
+                    // some services do not not have a ChannelTabLHFactory
+                    tabHandler = channelTabLHFactory.fromQuery(tabHandler.getId(),
+                            tabHandler.getContentFilters(), tabHandler.getSortFilter());
+                }
+            } catch (final ParsingException e) {
+                // silently ignore the error, as the app can continue to function normally
+                Log.w(TAG, "Could not recreate channel tab handler", e);
+            }
+        }
+
+        if (playlistControlBinding != null) {
+            // PlaylistControls should be visible only if there is some item in
+            // infoListAdapter other than header
+            if (infoListAdapter.getItemCount() > 1) {
+                playlistControlBinding.getRoot().setVisibility(View.VISIBLE);
+            } else {
+                playlistControlBinding.getRoot().setVisibility(View.GONE);
+            }
+
+            PlayButtonHelper.initPlaylistControlClickListener(
+                    activity, playlistControlBinding, this);
+        }
+    }
+
+    public PlayQueue getPlayQueue() {
+        final List<StreamInfoItem> streamItems = infoListAdapter.getItemsList().stream()
+                .filter(StreamInfoItem.class::isInstance)
+                .map(StreamInfoItem.class::cast)
+                .collect(Collectors.toList());
+
+        return new ChannelTabPlayQueue(currentInfo.getServiceId(), tabHandler,
+                currentInfo.getNextPage(), streamItems, 0);
+    }
+}

app/src/main/java/org/schabi/newpipe/fragments/list/comments/CommentRepliesFragment.java

@@ -0,0 +1,170 @@
+package org.schabi.newpipe.fragments.list.comments;
+
+import static org.schabi.newpipe.util.ServiceHelper.getServiceById;
+
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.constraintlayout.widget.ConstraintLayout;
+import androidx.core.text.HtmlCompat;
+
+import org.schabi.newpipe.R;
+import org.schabi.newpipe.databinding.CommentRepliesHeaderBinding;
+import org.schabi.newpipe.error.UserAction;
+import org.schabi.newpipe.extractor.ListExtractor;
+import org.schabi.newpipe.extractor.comments.CommentsInfoItem;
+import org.schabi.newpipe.fragments.list.BaseListInfoFragment;
+import org.schabi.newpipe.info_list.ItemViewMode;
+import org.schabi.newpipe.util.DeviceUtils;
+import org.schabi.newpipe.util.ExtractorHelper;
+import org.schabi.newpipe.util.Localization;
+import org.schabi.newpipe.util.NavigationHelper;
+import org.schabi.newpipe.util.image.ImageStrategy;
+import org.schabi.newpipe.util.image.PicassoHelper;
+import org.schabi.newpipe.util.text.TextLinkifier;
+
+import java.util.Queue;
+import java.util.function.Supplier;
+
+import icepick.State;
+import io.reactivex.rxjava3.core.Single;
+import io.reactivex.rxjava3.disposables.CompositeDisposable;
+
+public final class CommentRepliesFragment
+        extends BaseListInfoFragment<CommentsInfoItem, CommentRepliesInfo> {
+
+    public static final String TAG = CommentRepliesFragment.class.getSimpleName();
+
+    @State
+    CommentsInfoItem commentsInfoItem; // the comment to show replies of
+    private final CompositeDisposable disposables = new CompositeDisposable();
+
+
+    /*//////////////////////////////////////////////////////////////////////////
+    // Constructors and lifecycle
+    //////////////////////////////////////////////////////////////////////////*/
+
+    // only called by the Android framework, after which readFrom is called and restores all data
+    public CommentRepliesFragment() {
+        super(UserAction.REQUESTED_COMMENT_REPLIES);
+    }
+
+    public CommentRepliesFragment(@NonNull final CommentsInfoItem commentsInfoItem) {
+        this();
+        this.commentsInfoItem = commentsInfoItem;
+        // setting "" as title since the title will be properly set right after
+        setInitialData(commentsInfoItem.getServiceId(), commentsInfoItem.getUrl(), "");
+    }
+
+    @Nullable
+    @Override
+    public View onCreateView(@NonNull final LayoutInflater inflater,
+                             @Nullable final ViewGroup container,
+                             @Nullable final Bundle savedInstanceState) {
+        return inflater.inflate(R.layout.fragment_comments, container, false);
+    }
+
+    @Override
+    public void onDestroyView() {
+        disposables.clear();
+        super.onDestroyView();
+    }
+
+    @Override
+    protected Supplier<View> getListHeaderSupplier() {
+        return () -> {
+            final CommentRepliesHeaderBinding binding = CommentRepliesHeaderBinding
+                    .inflate(activity.getLayoutInflater(), itemsList, false);
+            final CommentsInfoItem item = commentsInfoItem;
+
+            // load the author avatar
+            PicassoHelper.loadAvatar(item.getUploaderAvatars()).into(binding.authorAvatar);
+            binding.authorAvatar.setVisibility(ImageStrategy.shouldLoadImages()
+                    ? View.VISIBLE : View.GONE);
+
+            // setup author name and comment date
+            binding.authorName.setText(item.getUploaderName());
+            binding.uploadDate.setText(Localization.relativeTimeOrTextual(
+                    getContext(), item.getUploadDate(), item.getTextualUploadDate()));
+            binding.authorTouchArea.setOnClickListener(
+                    v -> NavigationHelper.openCommentAuthorIfPresent(requireActivity(), item));
+
+            // setup like count, hearted and pinned
+            binding.thumbsUpCount.setText(
+                    Localization.likeCount(requireContext(), item.getLikeCount()));
+            // for heartImage goneMarginEnd was used, but there is no way to tell ConstraintLayout
+            // not to use a different margin only when both the next two views are gone
+            ((ConstraintLayout.LayoutParams) binding.thumbsUpCount.getLayoutParams())
+                    .setMarginEnd(DeviceUtils.dpToPx(
+                            (item.isHeartedByUploader() || item.isPinned() ? 8 : 16),
+                            requireContext()));
+            binding.heartImage.setVisibility(item.isHeartedByUploader() ? View.VISIBLE : View.GONE);
+            binding.pinnedImage.setVisibility(item.isPinned() ? View.VISIBLE : View.GONE);
+
+            // setup comment content
+            TextLinkifier.fromDescription(binding.commentContent, item.getCommentText(),
+                    HtmlCompat.FROM_HTML_MODE_LEGACY, getServiceById(item.getServiceId()),
+                    item.getUrl(), disposables, null);
+
+            return binding.getRoot();
+        };
+    }
+
+
+    /*//////////////////////////////////////////////////////////////////////////
+    // State saving
+    //////////////////////////////////////////////////////////////////////////*/
+
+    @Override
+    public void writeTo(final Queue<Object> objectsToSave) {
+        super.writeTo(objectsToSave);
+        objectsToSave.add(commentsInfoItem);
+    }
+
+    @Override
+    public void readFrom(@NonNull final Queue<Object> savedObjects) throws Exception {
+        super.readFrom(savedObjects);
+        commentsInfoItem = (CommentsInfoItem) savedObjects.poll();
+    }
+
+
+    /*//////////////////////////////////////////////////////////////////////////
+    // Data loading
+    //////////////////////////////////////////////////////////////////////////*/
+
+    @Override
+    protected Single<CommentRepliesInfo> loadResult(final boolean forceLoad) {
+        return Single.fromCallable(() -> new CommentRepliesInfo(commentsInfoItem,
+                // the reply count string will be shown as the activity title
+                Localization.replyCount(requireContext(), commentsInfoItem.getReplyCount())));
+    }
+
+    @Override
+    protected Single<ListExtractor.InfoItemsPage<CommentsInfoItem>> loadMoreItemsLogic() {
+        // commentsInfoItem.getUrl() should contain the url of the original
+        // ListInfo<CommentsInfoItem>, which should be the stream url
+        return ExtractorHelper.getMoreCommentItems(
+                serviceId, commentsInfoItem.getUrl(), currentNextPage);
+    }
+
+
+    /*//////////////////////////////////////////////////////////////////////////
+    // Utils
+    //////////////////////////////////////////////////////////////////////////*/
+
+    @Override
+    protected ItemViewMode getItemViewMode() {
+        return ItemViewMode.LIST;
+    }
+
+    /**
+     * @return the comment to which the replies are shown
+     */
+    public CommentsInfoItem getCommentsInfoItem() {
+        return commentsInfoItem;
+    }
+}

app/src/main/java/org/schabi/newpipe/fragments/list/comments/CommentRepliesInfo.java

@@ -0,0 +1,22 @@
+package org.schabi.newpipe.fragments.list.comments;
+
+import org.schabi.newpipe.extractor.ListInfo;
+import org.schabi.newpipe.extractor.comments.CommentsInfoItem;
+import org.schabi.newpipe.extractor.linkhandler.ListLinkHandler;
+
+import java.util.Collections;
+
+public final class CommentRepliesInfo extends ListInfo<CommentsInfoItem> {
+    /**
+     * This class is used to wrap the comment replies page into a ListInfo object.
+     *
+     * @param comment the comment from which to get replies
+     * @param name will be shown as the fragment title
+     */
+    public CommentRepliesInfo(final CommentsInfoItem comment, final String name) {
+        super(comment.getServiceId(),
+                new ListLinkHandler("", "", "", Collections.emptyList(), null), name);
+        setNextPage(comment.getReplies());
+        setRelatedItems(Collections.emptyList()); // since it must be non-null
+    }
+}

app/src/main/java/org/schabi/newpipe/fragments/list/comments/CommentsFragment.java

@@ -110,4 +110,14 @@ public class CommentsFragment extends BaseListInfoFragment<CommentsInfoItem, Com
     protected ItemViewMode getItemViewMode() {
         return ItemViewMode.LIST;
     }
+
+    public boolean scrollToComment(final CommentsInfoItem comment) {
+        final int position = infoListAdapter.getItemsList().indexOf(comment);
+        if (position < 0) {
+            return false;
+        }
+
+        itemsList.scrollToPosition(position);
+        return true;
+    }
 }

app/src/main/java/org/schabi/newpipe/fragments/list/kiosk/KioskFragment.java

@@ -16,11 +16,13 @@ import org.schabi.newpipe.error.ErrorInfo;
 import org.schabi.newpipe.error.UserAction;
 import org.schabi.newpipe.extractor.ListExtractor;
 import org.schabi.newpipe.extractor.NewPipe;
+import org.schabi.newpipe.extractor.ServiceList;
 import org.schabi.newpipe.extractor.StreamingService;
 import org.schabi.newpipe.extractor.exceptions.ExtractionException;
 import org.schabi.newpipe.extractor.kiosk.KioskInfo;
 import org.schabi.newpipe.extractor.linkhandler.ListLinkHandlerFactory;
 import org.schabi.newpipe.extractor.localization.ContentCountry;
+import org.schabi.newpipe.extractor.services.media_ccc.extractors.MediaCCCLiveStreamKiosk;
 import org.schabi.newpipe.extractor.stream.StreamInfoItem;
 import org.schabi.newpipe.fragments.list.BaseListInfoFragment;
 import org.schabi.newpipe.util.ExtractorHelper;
@@ -161,4 +163,14 @@ public class KioskFragment extends BaseListInfoFragment<StreamInfoItem, KioskInf
         name = kioskTranslatedName;
         setTitle(kioskTranslatedName);
     }
+
+    @Override
+    public void showEmptyState() {
+        // show "no live streams" for live stream kiosk
+        super.showEmptyState();
+        if (MediaCCCLiveStreamKiosk.KIOSK_ID.equals(currentInfo.getId())
+                && ServiceList.MediaCCC.getServiceId() == currentInfo.getServiceId()) {
+            setEmptyStateMessage(R.string.no_live_streams);
+        }
+    }
 }

app/src/main/java/org/schabi/newpipe/fragments/list/playlist/PlaylistControlViewHolder.java

@@ -0,0 +1,11 @@
+package org.schabi.newpipe.fragments.list.playlist;
+
+import org.schabi.newpipe.player.playqueue.PlayQueue;
+
+/**
+ * Interface for {@code R.layout.playlist_control} view holders
+ * to give access to the play queue.
+ */
+public interface PlaylistControlViewHolder {
+    PlayQueue getPlayQueue();
+}

app/src/main/java/org/schabi/newpipe/fragments/list/playlist/PlaylistFragment.java

@@ -1,7 +1,9 @@
 package org.schabi.newpipe.fragments.list.playlist;
 
+import static org.schabi.newpipe.extractor.utils.Utils.isBlank;
 import static org.schabi.newpipe.ktx.ViewUtils.animate;
 import static org.schabi.newpipe.ktx.ViewUtils.animateHideRecyclerViewAllowingScrolling;
+import static org.schabi.newpipe.util.ServiceHelper.getServiceById;
 
 import android.content.Context;
 import android.os.Bundle;
@@ -37,20 +39,22 @@ import org.schabi.newpipe.extractor.ListExtractor;
 import org.schabi.newpipe.extractor.ServiceList;
 import org.schabi.newpipe.extractor.playlist.PlaylistInfo;
 import org.schabi.newpipe.extractor.services.youtube.YoutubeParsingHelper;
+import org.schabi.newpipe.extractor.stream.Description;
 import org.schabi.newpipe.extractor.stream.StreamInfoItem;
 import org.schabi.newpipe.fragments.list.BaseListInfoFragment;
 import org.schabi.newpipe.info_list.dialog.InfoItemDialog;
 import org.schabi.newpipe.info_list.dialog.StreamDialogDefaultEntry;
 import org.schabi.newpipe.local.dialog.PlaylistDialog;
 import org.schabi.newpipe.local.playlist.RemotePlaylistManager;
-import org.schabi.newpipe.player.PlayerType;
 import org.schabi.newpipe.player.playqueue.PlayQueue;
 import org.schabi.newpipe.player.playqueue.PlaylistPlayQueue;
 import org.schabi.newpipe.util.ExtractorHelper;
 import org.schabi.newpipe.util.Localization;
 import org.schabi.newpipe.util.NavigationHelper;
-import org.schabi.newpipe.util.PicassoHelper;
+import org.schabi.newpipe.util.PlayButtonHelper;
 import org.schabi.newpipe.util.external_communication.ShareUtils;
+import org.schabi.newpipe.util.image.PicassoHelper;
+import org.schabi.newpipe.util.text.TextEllipsizer;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -64,7 +68,8 @@ import io.reactivex.rxjava3.core.Single;
 import io.reactivex.rxjava3.disposables.CompositeDisposable;
 import io.reactivex.rxjava3.disposables.Disposable;
 
-public class PlaylistFragment extends BaseListInfoFragment<StreamInfoItem, PlaylistInfo> {
+public class PlaylistFragment extends BaseListInfoFragment<StreamInfoItem, PlaylistInfo>
+        implements PlaylistControlViewHolder {
 
     private static final String PICASSO_PLAYLIST_TAG = "PICASSO_PLAYLIST_TAG";
 
@@ -84,6 +89,9 @@ public class PlaylistFragment extends BaseListInfoFragment<StreamInfoItem, Playl
 
     private MenuItem playlistBookmarkButton;
 
+    private long streamCount;
+    private long playlistOverallDurationSeconds;
+
     public static PlaylistFragment getInstance(final int serviceId, final String url,
                                                final String name) {
         final PlaylistFragment instance = new PlaylistFragment();
@@ -233,7 +241,7 @@ public class PlaylistFragment extends BaseListInfoFragment<StreamInfoItem, Playl
                 break;
             case R.id.menu_item_share:
                 ShareUtils.shareText(requireContext(), name, url,
-                        currentInfo == null ? null : currentInfo.getThumbnailUrl());
+                        currentInfo == null ? List.of() : currentInfo.getThumbnails());
                 break;
             case R.id.menu_item_bookmark:
                 onBookmarkClicked();
@@ -272,6 +280,12 @@ public class PlaylistFragment extends BaseListInfoFragment<StreamInfoItem, Playl
         animate(headerBinding.uploaderLayout, false, 200);
     }
 
+    @Override
+    public void handleNextItems(final ListExtractor.InfoItemsPage result) {
+        super.handleNextItems(result);
+        setStreamCountAndOverallDuration(result.getItems(), !result.hasNextPage());
+    }
+
     @Override
     public void handleResult(@NonNull final PlaylistInfo result) {
         super.handleResult(result);
@@ -298,7 +312,6 @@ public class PlaylistFragment extends BaseListInfoFragment<StreamInfoItem, Playl
 
         playlistControlBinding.getRoot().setVisibility(View.VISIBLE);
 
-        final String avatarUrl = result.getUploaderAvatarUrl();
         if (result.getServiceId() == ServiceList.YouTube.getServiceId()
                 && (YoutubeParsingHelper.isYoutubeMixId(result.getId())
                 || YoutubeParsingHelper.isYoutubeMusicMixId(result.getId()))) {
@@ -314,12 +327,35 @@ public class PlaylistFragment extends BaseListInfoFragment<StreamInfoItem, Playl
                     R.drawable.ic_radio)
             );
         } else {
-            PicassoHelper.loadAvatar(avatarUrl).tag(PICASSO_PLAYLIST_TAG)
+            PicassoHelper.loadAvatar(result.getUploaderAvatars()).tag(PICASSO_PLAYLIST_TAG)
                     .into(headerBinding.uploaderAvatarView);
         }
 
-        headerBinding.playlistStreamCount.setText(Localization
-                .localizeStreamCount(getContext(), result.getStreamCount()));
+        streamCount = result.getStreamCount();
+        setStreamCountAndOverallDuration(result.getRelatedItems(), !result.hasNextPage());
+
+        final Description description = result.getDescription();
+        if (description != null && description != Description.EMPTY_DESCRIPTION
+                && !isBlank(description.getContent())) {
+            final TextEllipsizer ellipsizer = new TextEllipsizer(
+                    headerBinding.playlistDescription, 5, getServiceById(result.getServiceId()));
+            ellipsizer.setStateChangeListener(isEllipsized ->
+                headerBinding.playlistDescriptionReadMore.setText(
+                        Boolean.TRUE.equals(isEllipsized) ? R.string.show_more : R.string.show_less
+                ));
+            ellipsizer.setOnContentChanged(canBeEllipsized -> {
+                headerBinding.playlistDescriptionReadMore.setVisibility(
+                        Boolean.TRUE.equals(canBeEllipsized) ? View.VISIBLE : View.GONE);
+                if (Boolean.TRUE.equals(canBeEllipsized)) {
+                    ellipsizer.ellipsize();
+                }
+            });
+            ellipsizer.setContent(description);
+            headerBinding.playlistDescriptionReadMore.setOnClickListener(v -> ellipsizer.toggle());
+        } else {
+            headerBinding.playlistDescription.setVisibility(View.GONE);
+            headerBinding.playlistDescriptionReadMore.setVisibility(View.GONE);
+        }
 
         if (!result.getErrors().isEmpty()) {
             showSnackBarError(new ErrorInfo(result.getErrors(), UserAction.REQUESTED_PLAYLIST,
@@ -332,25 +368,10 @@ public class PlaylistFragment extends BaseListInfoFragment<StreamInfoItem, Playl
                 .observeOn(AndroidSchedulers.mainThread())
                 .subscribe(getPlaylistBookmarkSubscriber());
 
-        playlistControlBinding.playlistCtrlPlayAllButton.setOnClickListener(view ->
-                NavigationHelper.playOnMainPlayer(activity, getPlayQueue()));
-        playlistControlBinding.playlistCtrlPlayPopupButton.setOnClickListener(view ->
-                NavigationHelper.playOnPopupPlayer(activity, getPlayQueue(), false));
-        playlistControlBinding.playlistCtrlPlayBgButton.setOnClickListener(view ->
-                NavigationHelper.playOnBackgroundPlayer(activity, getPlayQueue(), false));
-
-        playlistControlBinding.playlistCtrlPlayPopupButton.setOnLongClickListener(view -> {
-            NavigationHelper.enqueueOnPlayer(activity, getPlayQueue(), PlayerType.POPUP);
-            return true;
-        });
-
-        playlistControlBinding.playlistCtrlPlayBgButton.setOnLongClickListener(view -> {
-            NavigationHelper.enqueueOnPlayer(activity, getPlayQueue(), PlayerType.AUDIO);
-            return true;
-        });
+        PlayButtonHelper.initPlaylistControlClickListener(activity, playlistControlBinding, this);
     }
 
-    private PlayQueue getPlayQueue() {
+    public PlayQueue getPlayQueue() {
         return getPlayQueue(0);
     }
 
@@ -474,4 +495,20 @@ public class PlaylistFragment extends BaseListInfoFragment<StreamInfoItem, Playl
         playlistBookmarkButton.setIcon(drawable);
         playlistBookmarkButton.setTitle(titleRes);
     }
+
+    private void setStreamCountAndOverallDuration(final List<StreamInfoItem> list,
+                                                  final boolean isDurationComplete) {
+        if (activity != null && headerBinding != null) {
+            playlistOverallDurationSeconds += list.stream()
+                    .mapToLong(x -> x.getDuration())
+                    .sum();
+            headerBinding.playlistStreamCount.setText(
+                Localization.concatenateStrings(
+                    Localization.localizeStreamCount(activity, streamCount),
+                    Localization.getDurationString(playlistOverallDurationSeconds,
+                            isDurationComplete, true))
+            );
+        }
+    }
+
 }

app/src/main/java/org/schabi/newpipe/fragments/list/search/SearchFragment.java

@@ -1,6 +1,7 @@
 package org.schabi.newpipe.fragments.list.search;
 
 import static androidx.recyclerview.widget.ItemTouchHelper.Callback.makeMovementFlags;
+import static org.schabi.newpipe.extractor.utils.Utils.isBlank;
 import static org.schabi.newpipe.ktx.ViewUtils.animate;
 import static org.schabi.newpipe.util.ExtractorHelper.showMetaInfoInTextView;
 import static java.util.Arrays.asList;
@@ -167,6 +168,10 @@ public class SearchFragment extends BaseListFragment<SearchInfo, ListExtractor.I
 
     /*////////////////////////////////////////////////////////////////////////*/
 
+    /**
+     * TextWatcher to remove rich-text formatting on the search EditText when pasting content
+     * from the clipboard.
+     */
     private TextWatcher textWatcher;
 
     public static SearchFragment getInstance(final int serviceId, final String searchString) {
@@ -385,7 +390,7 @@ public class SearchFragment extends BaseListFragment<SearchInfo, ListExtractor.I
     @Override
     public void onSaveInstanceState(@NonNull final Bundle bundle) {
         searchString = searchEditText != null
-                ? searchEditText.getText().toString()
+                ? getSearchEditString().trim()
                 : searchString;
         super.onSaveInstanceState(bundle);
     }
@@ -396,11 +401,11 @@ public class SearchFragment extends BaseListFragment<SearchInfo, ListExtractor.I
 
     @Override
     public void reloadContent() {
-        if (!TextUtils.isEmpty(searchString)
-                || (searchEditText != null && !TextUtils.isEmpty(searchEditText.getText()))) {
+        if (!TextUtils.isEmpty(searchString) || (searchEditText != null
+                && !isSearchEditBlank())) {
             search(!TextUtils.isEmpty(searchString)
                     ? searchString
-                    : searchEditText.getText().toString(), this.contentFilter, "");
+                    : getSearchEditString(), this.contentFilter, "");
         } else {
             if (searchEditText != null) {
                 searchEditText.setText("");
@@ -494,7 +499,8 @@ public class SearchFragment extends BaseListFragment<SearchInfo, ListExtractor.I
         }
         searchEditText.setText(searchString);
 
-        if (TextUtils.isEmpty(searchString) || TextUtils.isEmpty(searchEditText.getText())) {
+        if (TextUtils.isEmpty(searchString)
+                || isSearchEditBlank()) {
             searchToolbarContainer.setTranslationX(100);
             searchToolbarContainer.setAlpha(0.0f);
             searchToolbarContainer.setVisibility(View.VISIBLE);
@@ -518,7 +524,7 @@ public class SearchFragment extends BaseListFragment<SearchInfo, ListExtractor.I
             if (DEBUG) {
                 Log.d(TAG, "onClick() called with: v = [" + v + "]");
             }
-            if (TextUtils.isEmpty(searchEditText.getText())) {
+            if (isSearchEditBlank()) {
                 NavigationHelper.gotoMainFragment(getFM());
                 return;
             }
@@ -583,11 +589,13 @@ public class SearchFragment extends BaseListFragment<SearchInfo, ListExtractor.I
             @Override
             public void beforeTextChanged(final CharSequence s, final int start,
                                           final int count, final int after) {
+                // Do nothing, old text is already clean
             }
 
             @Override
             public void onTextChanged(final CharSequence s, final int start,
                                       final int before, final int count) {
+                // Changes are handled in afterTextChanged; CharSequence cannot be changed here.
             }
 
             @Override
@@ -597,7 +605,7 @@ public class SearchFragment extends BaseListFragment<SearchInfo, ListExtractor.I
                     s.removeSpan(span);
                 }
 
-                final String newText = searchEditText.getText().toString();
+                final String newText = getSearchEditString().trim();
                 suggestionPublisher.onNext(newText);
             }
         };
@@ -613,7 +621,8 @@ public class SearchFragment extends BaseListFragment<SearchInfo, ListExtractor.I
                     } else if (event != null
                             && (event.getKeyCode() == KeyEvent.KEYCODE_ENTER
                             || event.getAction() == EditorInfo.IME_ACTION_SEARCH)) {
-                        search(searchEditText.getText().toString(), new String[0], "");
+                        searchEditText.setText(getSearchEditString().trim());
+                        search(getSearchEditString(), new String[0], "");
                         return true;
                     }
                     return false;
@@ -688,7 +697,7 @@ public class SearchFragment extends BaseListFragment<SearchInfo, ListExtractor.I
                             .observeOn(AndroidSchedulers.mainThread())
                             .subscribe(
                                     howManyDeleted -> suggestionPublisher
-                                            .onNext(searchEditText.getText().toString()),
+                                            .onNext(getSearchEditString()),
                                     throwable -> showSnackBarError(new ErrorInfo(throwable,
                                             UserAction.DELETE_FROM_HISTORY,
                                             "Deleting item failed")));
@@ -717,9 +726,9 @@ public class SearchFragment extends BaseListFragment<SearchInfo, ListExtractor.I
                 .getRelatedSearches(query, similarQueryLimit, 25)
                 .toObservable()
                 .map(searchHistoryEntries ->
-                    searchHistoryEntries.stream()
-                            .map(entry -> new SuggestionItem(true, entry))
-                            .collect(Collectors.toList()));
+                        searchHistoryEntries.stream()
+                                .map(entry -> new SuggestionItem(true, entry))
+                                .collect(Collectors.toList()));
     }
 
     private Observable<List<SuggestionItem>> getRemoteSuggestionsObservable(final String query) {
@@ -786,12 +795,12 @@ public class SearchFragment extends BaseListFragment<SearchInfo, ListExtractor.I
                             } else if (listNotification.isOnError()
                                     && listNotification.getError() != null
                                     && !ExceptionUtils.isInterruptedCaused(
-                                            listNotification.getError())) {
+                                    listNotification.getError())) {
                                 showSnackBarError(new ErrorInfo(listNotification.getError(),
                                         UserAction.GET_SUGGESTIONS, searchString, serviceId));
                             }
                         }, throwable -> showSnackBarError(new ErrorInfo(
-                            throwable, UserAction.GET_SUGGESTIONS, searchString, serviceId)));
+                                throwable, UserAction.GET_SUGGESTIONS, searchString, serviceId)));
     }
 
     @Override
@@ -799,7 +808,13 @@ public class SearchFragment extends BaseListFragment<SearchInfo, ListExtractor.I
         // no-op
     }
 
-    private void search(final String theSearchString,
+    /**
+     * Perform a search.
+     * @param theSearchString the trimmed search string
+     * @param theContentFilter the content filter to use. FIXME: unused param
+     * @param theSortFilter FIXME: unused param
+     */
+    private void search(@NonNull final String theSearchString,
                         final String[] theContentFilter,
                         final String theSortFilter) {
         if (DEBUG) {
@@ -809,25 +824,26 @@ public class SearchFragment extends BaseListFragment<SearchInfo, ListExtractor.I
             return;
         }
 
+        // Check if theSearchString is a URL which can be opened by NewPipe directly
+        // and open it if possible.
         try {
             final StreamingService streamingService = NewPipe.getServiceByUrl(theSearchString);
-            if (streamingService != null) {
-                showLoading();
-                disposables.add(Observable
-                        .fromCallable(() -> NavigationHelper.getIntentByLink(activity,
-                                streamingService, theSearchString))
-                        .subscribeOn(Schedulers.io())
-                        .observeOn(AndroidSchedulers.mainThread())
-                        .subscribe(intent -> {
-                            getFM().popBackStackImmediate();
-                            activity.startActivity(intent);
-                        }, throwable -> showTextError(getString(R.string.unsupported_url))));
-                return;
-            }
+            showLoading();
+            disposables.add(Observable
+                    .fromCallable(() -> NavigationHelper.getIntentByLink(activity,
+                            streamingService, theSearchString))
+                    .subscribeOn(Schedulers.io())
+                    .observeOn(AndroidSchedulers.mainThread())
+                    .subscribe(intent -> {
+                        getFM().popBackStackImmediate();
+                        activity.startActivity(intent);
+                    }, throwable -> showTextError(getString(R.string.unsupported_url))));
+            return;
         } catch (final Exception ignored) {
             // Exception occurred, it's not a url
         }
 
+        // prepare search
         lastSearchedString = this.searchString;
         this.searchString = theSearchString;
         infoListAdapter.clearStreamItemList();
@@ -836,13 +852,17 @@ public class SearchFragment extends BaseListFragment<SearchInfo, ListExtractor.I
                 searchBinding.searchMetaInfoSeparator, disposables);
         hideKeyboardSearch();
 
+        // store search query if search history is enabled
         disposables.add(historyRecordManager.onSearched(serviceId, theSearchString)
                 .observeOn(AndroidSchedulers.mainThread())
                 .subscribe(
-                        ignored -> { },
+                        ignored -> {
+                        },
                         throwable -> showSnackBarError(new ErrorInfo(throwable, UserAction.SEARCHED,
                                 theSearchString, serviceId))
                 ));
+
+        // load search results
         suggestionPublisher.onNext(theSearchString);
         startLoading(false);
     }
@@ -932,6 +952,14 @@ public class SearchFragment extends BaseListFragment<SearchInfo, ListExtractor.I
         sortFilter = theSortFilter;
     }
 
+    private String getSearchEditString() {
+        return searchEditText.getText().toString();
+    }
+
+    private boolean isSearchEditBlank() {
+        return isBlank(getSearchEditString());
+    }
+
     /*//////////////////////////////////////////////////////////////////////////
     // Suggestion Results
     //////////////////////////////////////////////////////////////////////////*/
@@ -973,6 +1001,9 @@ public class SearchFragment extends BaseListFragment<SearchInfo, ListExtractor.I
         }
 
         searchSuggestion = result.getSearchSuggestion();
+        if (searchSuggestion != null) {
+            searchSuggestion = searchSuggestion.trim();
+        }
         isCorrectedSearch = result.isCorrectedSearch();
 
         // List<MetaInfo> cannot be bundled without creating some containers
@@ -1074,7 +1105,7 @@ public class SearchFragment extends BaseListFragment<SearchInfo, ListExtractor.I
                 .observeOn(AndroidSchedulers.mainThread())
                 .subscribe(
                         howManyDeleted -> suggestionPublisher
-                                .onNext(searchEditText.getText().toString()),
+                                .onNext(getSearchEditString()),
                         throwable -> showSnackBarError(new ErrorInfo(throwable,
                                 UserAction.DELETE_FROM_HISTORY, "Deleting item failed")));
         disposables.add(onDelete);

app/src/main/java/org/schabi/newpipe/fragments/list/videos/RelatedItemsFragment.java

@@ -21,18 +21,17 @@ import org.schabi.newpipe.extractor.stream.StreamInfo;
 import org.schabi.newpipe.fragments.list.BaseListInfoFragment;
 import org.schabi.newpipe.info_list.ItemViewMode;
 import org.schabi.newpipe.ktx.ViewUtils;
-import org.schabi.newpipe.util.RelatedItemInfo;
 
 import java.io.Serializable;
 import java.util.function.Supplier;
 
 import io.reactivex.rxjava3.core.Single;
 
-public class RelatedItemsFragment extends BaseListInfoFragment<InfoItem, RelatedItemInfo>
+public class RelatedItemsFragment extends BaseListInfoFragment<InfoItem, RelatedItemsInfo>
         implements SharedPreferences.OnSharedPreferenceChangeListener {
     private static final String INFO_KEY = "related_info_key";
 
-    private RelatedItemInfo relatedItemInfo;
+    private RelatedItemsInfo relatedItemsInfo;
 
     /*//////////////////////////////////////////////////////////////////////////
     // Views
@@ -69,7 +68,7 @@ public class RelatedItemsFragment extends BaseListInfoFragment<InfoItem, Related
 
     @Override
     protected Supplier<View> getListHeaderSupplier() {
-        if (relatedItemInfo == null || relatedItemInfo.getRelatedItems() == null) {
+        if (relatedItemsInfo == null || relatedItemsInfo.getRelatedItems() == null) {
             return null;
         }
 
@@ -97,8 +96,8 @@ public class RelatedItemsFragment extends BaseListInfoFragment<InfoItem, Related
     //////////////////////////////////////////////////////////////////////////*/
 
     @Override
-    protected Single<RelatedItemInfo> loadResult(final boolean forceLoad) {
-        return Single.fromCallable(() -> relatedItemInfo);
+    protected Single<RelatedItemsInfo> loadResult(final boolean forceLoad) {
+        return Single.fromCallable(() -> relatedItemsInfo);
     }
 
     @Override
@@ -110,7 +109,7 @@ public class RelatedItemsFragment extends BaseListInfoFragment<InfoItem, Related
     }
 
     @Override
-    public void handleResult(@NonNull final RelatedItemInfo result) {
+    public void handleResult(@NonNull final RelatedItemsInfo result) {
         super.handleResult(result);
 
         if (headerBinding != null) {
@@ -137,23 +136,23 @@ public class RelatedItemsFragment extends BaseListInfoFragment<InfoItem, Related
 
     private void setInitialData(final StreamInfo info) {
         super.setInitialData(info.getServiceId(), info.getUrl(), info.getName());
-        if (this.relatedItemInfo == null) {
-            this.relatedItemInfo = RelatedItemInfo.getInfo(info);
+        if (this.relatedItemsInfo == null) {
+            this.relatedItemsInfo = new RelatedItemsInfo(info);
         }
     }
 
     @Override
     public void onSaveInstanceState(@NonNull final Bundle outState) {
         super.onSaveInstanceState(outState);
-        outState.putSerializable(INFO_KEY, relatedItemInfo);
+        outState.putSerializable(INFO_KEY, relatedItemsInfo);
     }
 
     @Override
     protected void onRestoreInstanceState(@NonNull final Bundle savedState) {
         super.onRestoreInstanceState(savedState);
         final Serializable serializable = savedState.getSerializable(INFO_KEY);
-        if (serializable instanceof RelatedItemInfo) {
-            this.relatedItemInfo = (RelatedItemInfo) serializable;
+        if (serializable instanceof RelatedItemsInfo) {
+            this.relatedItemsInfo = (RelatedItemsInfo) serializable;
         }
     }
 

app/src/main/java/org/schabi/newpipe/fragments/list/videos/RelatedItemsInfo.java

@@ -0,0 +1,22 @@
+package org.schabi.newpipe.fragments.list.videos;
+
+import org.schabi.newpipe.extractor.InfoItem;
+import org.schabi.newpipe.extractor.ListInfo;
+import org.schabi.newpipe.extractor.linkhandler.ListLinkHandler;
+import org.schabi.newpipe.extractor.stream.StreamInfo;
+
+import java.util.ArrayList;
+import java.util.Collections;
+
+public final class RelatedItemsInfo extends ListInfo<InfoItem> {
+    /**
+     * This class is used to wrap the related items of a StreamInfo into a ListInfo object.
+     *
+     * @param info the stream info from which to get related items
+     */
+    public RelatedItemsInfo(final StreamInfo info) {
+        super(info.getServiceId(), new ListLinkHandler(info.getOriginalUrl(), info.getUrl(),
+                info.getId(), Collections.emptyList(), null), info.getName());
+        setRelatedItems(new ArrayList<>(info.getRelatedItems()));
+    }
+}

app/src/main/java/org/schabi/newpipe/info_list/InfoItemBuilder.java

@@ -13,8 +13,7 @@ import org.schabi.newpipe.extractor.playlist.PlaylistInfoItem;
 import org.schabi.newpipe.extractor.stream.StreamInfoItem;
 import org.schabi.newpipe.info_list.holder.ChannelInfoItemHolder;
 import org.schabi.newpipe.info_list.holder.ChannelMiniInfoItemHolder;
-import org.schabi.newpipe.info_list.holder.CommentsInfoItemHolder;
-import org.schabi.newpipe.info_list.holder.CommentsMiniInfoItemHolder;
+import org.schabi.newpipe.info_list.holder.CommentInfoItemHolder;
 import org.schabi.newpipe.info_list.holder.InfoItemHolder;
 import org.schabi.newpipe.info_list.holder.PlaylistInfoItemHolder;
 import org.schabi.newpipe.info_list.holder.PlaylistMiniInfoItemHolder;
@@ -87,8 +86,7 @@ public class InfoItemBuilder {
                 return useMiniVariant ? new PlaylistMiniInfoItemHolder(this, parent)
                         : new PlaylistInfoItemHolder(this, parent);
             case COMMENT:
-                return useMiniVariant ? new CommentsMiniInfoItemHolder(this, parent)
-                        : new CommentsInfoItemHolder(this, parent);
+                return new CommentInfoItemHolder(this, parent);
             default:
                 throw new RuntimeException("InfoType not expected = " + infoType.name());
         }

app/src/main/java/org/schabi/newpipe/info_list/InfoListAdapter.java

@@ -21,8 +21,7 @@ import org.schabi.newpipe.info_list.holder.ChannelCardInfoItemHolder;
 import org.schabi.newpipe.info_list.holder.ChannelGridInfoItemHolder;
 import org.schabi.newpipe.info_list.holder.ChannelInfoItemHolder;
 import org.schabi.newpipe.info_list.holder.ChannelMiniInfoItemHolder;
-import org.schabi.newpipe.info_list.holder.CommentsInfoItemHolder;
-import org.schabi.newpipe.info_list.holder.CommentsMiniInfoItemHolder;
+import org.schabi.newpipe.info_list.holder.CommentInfoItemHolder;
 import org.schabi.newpipe.info_list.holder.InfoItemHolder;
 import org.schabi.newpipe.info_list.holder.PlaylistCardInfoItemHolder;
 import org.schabi.newpipe.info_list.holder.PlaylistGridInfoItemHolder;
@@ -79,8 +78,7 @@ public class InfoListAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolde
     private static final int PLAYLIST_HOLDER_TYPE = 0x301;
     private static final int GRID_PLAYLIST_HOLDER_TYPE = 0x302;
     private static final int CARD_PLAYLIST_HOLDER_TYPE = 0x303;
-    private static final int MINI_COMMENT_HOLDER_TYPE = 0x400;
-    private static final int COMMENT_HOLDER_TYPE = 0x401;
+    private static final int COMMENT_HOLDER_TYPE = 0x400;
 
     private final LayoutInflater layoutInflater;
     private final InfoItemBuilder infoItemBuilder;
@@ -271,7 +269,7 @@ public class InfoListAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolde
                     return PLAYLIST_HOLDER_TYPE;
                 }
             case COMMENT:
-                return useMiniVariant ? MINI_COMMENT_HOLDER_TYPE : COMMENT_HOLDER_TYPE;
+                return COMMENT_HOLDER_TYPE;
             default:
                 return -1;
         }
@@ -320,10 +318,8 @@ public class InfoListAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolde
                 return new PlaylistGridInfoItemHolder(infoItemBuilder, parent);
             case CARD_PLAYLIST_HOLDER_TYPE:
                 return new PlaylistCardInfoItemHolder(infoItemBuilder, parent);
-            case MINI_COMMENT_HOLDER_TYPE:
-                return new CommentsMiniInfoItemHolder(infoItemBuilder, parent);
             case COMMENT_HOLDER_TYPE:
-                return new CommentsInfoItemHolder(infoItemBuilder, parent);
+                return new CommentInfoItemHolder(infoItemBuilder, parent);
             default:
                 return new FallbackViewHolder(new View(parent.getContext()));
         }

app/src/main/java/org/schabi/newpipe/info_list/StreamSegmentItem.kt

@@ -8,7 +8,7 @@ import com.xwray.groupie.Item
 import org.schabi.newpipe.R
 import org.schabi.newpipe.extractor.stream.StreamSegment
 import org.schabi.newpipe.util.Localization
-import org.schabi.newpipe.util.PicassoHelper
+import org.schabi.newpipe.util.image.PicassoHelper
 
 class StreamSegmentItem(
     private val item: StreamSegment,

app/src/main/java/org/schabi/newpipe/info_list/dialog/StreamDialogDefaultEntry.java

@@ -104,7 +104,7 @@ public enum StreamDialogDefaultEntry {
 
     SHARE(R.string.share, (fragment, item) ->
             ShareUtils.shareText(fragment.requireContext(), item.getName(), item.getUrl(),
-                    item.getThumbnailUrl())),
+                    item.getThumbnails())),
 
     /**
      * Opens a {@link DownloadDialog} after fetching some stream info.

app/src/main/java/org/schabi/newpipe/info_list/holder/ChannelMiniInfoItemHolder.java

@@ -13,7 +13,7 @@ import org.schabi.newpipe.extractor.channel.ChannelInfoItem;
 import org.schabi.newpipe.extractor.utils.Utils;
 import org.schabi.newpipe.info_list.InfoItemBuilder;
 import org.schabi.newpipe.local.history.HistoryRecordManager;
-import org.schabi.newpipe.util.PicassoHelper;
+import org.schabi.newpipe.util.image.PicassoHelper;
 import org.schabi.newpipe.util.Localization;
 
 public class ChannelMiniInfoItemHolder extends InfoItemHolder {
@@ -56,7 +56,7 @@ public class ChannelMiniInfoItemHolder extends InfoItemHolder {
             itemAdditionalDetailView.setText(getDetailLine(item));
         }
 
-        PicassoHelper.loadAvatar(item.getThumbnailUrl()).into(itemThumbnailView);
+        PicassoHelper.loadAvatar(item.getThumbnails()).into(itemThumbnailView);
 
         itemView.setOnClickListener(view -> {
             if (itemBuilder.getOnChannelSelectedListener() != null) {

app/src/main/java/org/schabi/newpipe/info_list/holder/CommentInfoItemHolder.java

@@ -0,0 +1,188 @@
+package org.schabi.newpipe.info_list.holder;
+
+import static org.schabi.newpipe.util.ServiceHelper.getServiceById;
+
+import android.text.method.LinkMovementMethod;
+import android.text.style.URLSpan;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Button;
+import android.widget.ImageView;
+import android.widget.RelativeLayout;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.fragment.app.FragmentActivity;
+
+import org.schabi.newpipe.R;
+import org.schabi.newpipe.extractor.InfoItem;
+import org.schabi.newpipe.extractor.comments.CommentsInfoItem;
+import org.schabi.newpipe.info_list.InfoItemBuilder;
+import org.schabi.newpipe.local.history.HistoryRecordManager;
+import org.schabi.newpipe.util.DeviceUtils;
+import org.schabi.newpipe.util.Localization;
+import org.schabi.newpipe.util.NavigationHelper;
+import org.schabi.newpipe.util.external_communication.ShareUtils;
+import org.schabi.newpipe.util.image.ImageStrategy;
+import org.schabi.newpipe.util.image.PicassoHelper;
+import org.schabi.newpipe.util.text.CommentTextOnTouchListener;
+import org.schabi.newpipe.util.text.TextEllipsizer;
+
+public class CommentInfoItemHolder extends InfoItemHolder {
+
+    private static final int COMMENT_DEFAULT_LINES = 2;
+    private final int commentHorizontalPadding;
+    private final int commentVerticalPadding;
+
+    private final RelativeLayout itemRoot;
+    private final ImageView itemThumbnailView;
+    private final TextView itemContentView;
+    private final ImageView itemThumbsUpView;
+    private final TextView itemLikesCountView;
+    private final TextView itemTitleView;
+    private final ImageView itemHeartView;
+    private final ImageView itemPinnedView;
+    private final Button repliesButton;
+
+    @NonNull
+    private final TextEllipsizer textEllipsizer;
+
+    public CommentInfoItemHolder(final InfoItemBuilder infoItemBuilder,
+                                 final ViewGroup parent) {
+        super(infoItemBuilder, R.layout.list_comment_item, parent);
+
+        itemRoot = itemView.findViewById(R.id.itemRoot);
+        itemThumbnailView = itemView.findViewById(R.id.itemThumbnailView);
+        itemContentView = itemView.findViewById(R.id.itemCommentContentView);
+        itemThumbsUpView = itemView.findViewById(R.id.detail_thumbs_up_img_view);
+        itemLikesCountView = itemView.findViewById(R.id.detail_thumbs_up_count_view);
+        itemTitleView = itemView.findViewById(R.id.itemTitleView);
+        itemHeartView = itemView.findViewById(R.id.detail_heart_image_view);
+        itemPinnedView = itemView.findViewById(R.id.detail_pinned_view);
+        repliesButton = itemView.findViewById(R.id.replies_button);
+
+        commentHorizontalPadding = (int) infoItemBuilder.getContext()
+                .getResources().getDimension(R.dimen.comments_horizontal_padding);
+        commentVerticalPadding = (int) infoItemBuilder.getContext()
+                .getResources().getDimension(R.dimen.comments_vertical_padding);
+
+        textEllipsizer = new TextEllipsizer(itemContentView, COMMENT_DEFAULT_LINES, null);
+        textEllipsizer.setStateChangeListener(isEllipsized -> {
+            if (Boolean.TRUE.equals(isEllipsized)) {
+                denyLinkFocus();
+            } else {
+                determineMovementMethod();
+            }
+        });
+    }
+
+    @Override
+    public void updateFromItem(final InfoItem infoItem,
+                               final HistoryRecordManager historyRecordManager) {
+        if (!(infoItem instanceof CommentsInfoItem)) {
+            return;
+        }
+        final CommentsInfoItem item = (CommentsInfoItem) infoItem;
+
+
+        // load the author avatar
+        PicassoHelper.loadAvatar(item.getUploaderAvatars()).into(itemThumbnailView);
+        if (ImageStrategy.shouldLoadImages()) {
+            itemThumbnailView.setVisibility(View.VISIBLE);
+            itemRoot.setPadding(commentVerticalPadding, commentVerticalPadding,
+                    commentVerticalPadding, commentVerticalPadding);
+        } else {
+            itemThumbnailView.setVisibility(View.GONE);
+            itemRoot.setPadding(commentHorizontalPadding, commentVerticalPadding,
+                    commentHorizontalPadding, commentVerticalPadding);
+        }
+        itemThumbnailView.setOnClickListener(view -> openCommentAuthor(item));
+
+
+        // setup the top row, with pinned icon, author name and comment date
+        itemPinnedView.setVisibility(item.isPinned() ? View.VISIBLE : View.GONE);
+        itemTitleView.setText(Localization.concatenateStrings(item.getUploaderName(),
+                Localization.relativeTimeOrTextual(itemBuilder.getContext(), item.getUploadDate(),
+                        item.getTextualUploadDate())));
+
+
+        // setup bottom row, with likes, heart and replies button
+        itemLikesCountView.setText(
+                Localization.likeCount(itemBuilder.getContext(), item.getLikeCount()));
+
+        itemHeartView.setVisibility(item.isHeartedByUploader() ? View.VISIBLE : View.GONE);
+
+        final boolean hasReplies = item.getReplies() != null;
+        repliesButton.setOnClickListener(hasReplies ? v -> openCommentReplies(item) : null);
+        repliesButton.setVisibility(hasReplies ? View.VISIBLE : View.GONE);
+        repliesButton.setText(hasReplies
+                ? Localization.replyCount(itemBuilder.getContext(), item.getReplyCount()) : "");
+        ((RelativeLayout.LayoutParams) itemThumbsUpView.getLayoutParams()).topMargin =
+                hasReplies ? 0 : DeviceUtils.dpToPx(6, itemBuilder.getContext());
+
+
+        // setup comment content and click listeners to expand/ellipsize it
+        textEllipsizer.setStreamingService(getServiceById(item.getServiceId()));
+        textEllipsizer.setStreamUrl(item.getUrl());
+        textEllipsizer.setContent(item.getCommentText());
+        textEllipsizer.ellipsize();
+
+        //noinspection ClickableViewAccessibility
+        itemContentView.setOnTouchListener(CommentTextOnTouchListener.INSTANCE);
+
+        itemView.setOnClickListener(view -> {
+            textEllipsizer.toggle();
+            if (itemBuilder.getOnCommentsSelectedListener() != null) {
+                itemBuilder.getOnCommentsSelectedListener().selected(item);
+            }
+        });
+
+        itemView.setOnLongClickListener(view -> {
+            if (DeviceUtils.isTv(itemBuilder.getContext())) {
+                openCommentAuthor(item);
+            } else {
+                final CharSequence text = itemContentView.getText();
+                if (text != null) {
+                    ShareUtils.copyToClipboard(itemBuilder.getContext(), text.toString());
+                }
+            }
+            return true;
+        });
+    }
+
+    private void openCommentAuthor(@NonNull final CommentsInfoItem item) {
+        NavigationHelper.openCommentAuthorIfPresent((FragmentActivity) itemBuilder.getContext(),
+                item);
+    }
+
+    private void openCommentReplies(@NonNull final CommentsInfoItem item) {
+        NavigationHelper.openCommentRepliesFragment((FragmentActivity) itemBuilder.getContext(),
+                item);
+    }
+
+    private void allowLinkFocus() {
+        itemContentView.setMovementMethod(LinkMovementMethod.getInstance());
+    }
+
+    private void denyLinkFocus() {
+        itemContentView.setMovementMethod(null);
+    }
+
+    private boolean shouldFocusLinks() {
+        if (itemView.isInTouchMode()) {
+            return false;
+        }
+
+        final URLSpan[] urls = itemContentView.getUrls();
+
+        return urls != null && urls.length != 0;
+    }
+
+    private void determineMovementMethod() {
+        if (shouldFocusLinks()) {
+            allowLinkFocus();
+        } else {
+            denyLinkFocus();
+        }
+    }
+}

app/src/main/java/org/schabi/newpipe/info_list/holder/CommentsInfoItemHolder.java

@@ -1,63 +0,0 @@
-package org.schabi.newpipe.info_list.holder;
-
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.ImageView;
-import android.widget.TextView;
-
-import org.schabi.newpipe.R;
-import org.schabi.newpipe.extractor.InfoItem;
-import org.schabi.newpipe.extractor.comments.CommentsInfoItem;
-import org.schabi.newpipe.info_list.InfoItemBuilder;
-import org.schabi.newpipe.local.history.HistoryRecordManager;
-
-/*
- * Created by Christian Schabesberger on 12.02.17.
- *
- * Copyright (C) Christian Schabesberger 2016 <chris.schabesberger@mailbox.org>
- * ChannelInfoItemHolder .java is part of NewPipe.
- *
- * NewPipe is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * NewPipe is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with NewPipe.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-public class CommentsInfoItemHolder extends CommentsMiniInfoItemHolder {
-    public final TextView itemTitleView;
-    private final ImageView itemHeartView;
-    private final ImageView itemPinnedView;
-
-    public CommentsInfoItemHolder(final InfoItemBuilder infoItemBuilder, final ViewGroup parent) {
-        super(infoItemBuilder, R.layout.list_comments_item, parent);
-
-        itemTitleView = itemView.findViewById(R.id.itemTitleView);
-        itemHeartView = itemView.findViewById(R.id.detail_heart_image_view);
-        itemPinnedView = itemView.findViewById(R.id.detail_pinned_view);
-    }
-
-    @Override
-    public void updateFromItem(final InfoItem infoItem,
-                               final HistoryRecordManager historyRecordManager) {
-        super.updateFromItem(infoItem, historyRecordManager);
-
-        if (!(infoItem instanceof CommentsInfoItem)) {
-            return;
-        }
-        final CommentsInfoItem item = (CommentsInfoItem) infoItem;
-
-        itemTitleView.setText(item.getUploaderName());
-
-        itemHeartView.setVisibility(item.isHeartedByUploader() ? View.VISIBLE : View.GONE);
-
-        itemPinnedView.setVisibility(item.isPinned() ? View.VISIBLE : View.GONE);
-    }
-}

app/src/main/java/org/schabi/newpipe/info_list/holder/CommentsMiniInfoItemHolder.java

@@ -1,279 +0,0 @@
-package org.schabi.newpipe.info_list.holder;
-
-import static android.text.TextUtils.isEmpty;
-
-import android.graphics.Paint;
-import android.text.Layout;
-import android.text.method.LinkMovementMethod;
-import android.text.style.URLSpan;
-import android.util.Log;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.ImageView;
-import android.widget.RelativeLayout;
-import android.widget.TextView;
-
-import androidx.annotation.Nullable;
-import androidx.appcompat.app.AppCompatActivity;
-import androidx.core.text.HtmlCompat;
-
-import org.schabi.newpipe.R;
-import org.schabi.newpipe.error.ErrorUtil;
-import org.schabi.newpipe.extractor.InfoItem;
-import org.schabi.newpipe.extractor.NewPipe;
-import org.schabi.newpipe.extractor.ServiceList;
-import org.schabi.newpipe.extractor.StreamingService;
-import org.schabi.newpipe.extractor.comments.CommentsInfoItem;
-import org.schabi.newpipe.extractor.exceptions.ExtractionException;
-import org.schabi.newpipe.extractor.stream.Description;
-import org.schabi.newpipe.info_list.InfoItemBuilder;
-import org.schabi.newpipe.local.history.HistoryRecordManager;
-import org.schabi.newpipe.util.DeviceUtils;
-import org.schabi.newpipe.util.Localization;
-import org.schabi.newpipe.util.NavigationHelper;
-import org.schabi.newpipe.util.PicassoHelper;
-import org.schabi.newpipe.util.external_communication.ShareUtils;
-import org.schabi.newpipe.util.text.CommentTextOnTouchListener;
-import org.schabi.newpipe.util.text.TextLinkifier;
-
-import java.util.function.Consumer;
-
-import io.reactivex.rxjava3.disposables.CompositeDisposable;
-
-public class CommentsMiniInfoItemHolder extends InfoItemHolder {
-    private static final String TAG = "CommentsMiniIIHolder";
-    private static final String ELLIPSIS = "…";
-
-    private static final int COMMENT_DEFAULT_LINES = 2;
-    private static final int COMMENT_EXPANDED_LINES = 1000;
-
-    private final int commentHorizontalPadding;
-    private final int commentVerticalPadding;
-
-    private final Paint paintAtContentSize;
-    private final float ellipsisWidthPx;
-
-    private final RelativeLayout itemRoot;
-    private final ImageView itemThumbnailView;
-    private final TextView itemContentView;
-    private final TextView itemLikesCountView;
-    private final TextView itemPublishedTime;
-
-    private final CompositeDisposable disposables = new CompositeDisposable();
-    @Nullable private Description commentText;
-    @Nullable private StreamingService streamService;
-    @Nullable private String streamUrl;
-
-    CommentsMiniInfoItemHolder(final InfoItemBuilder infoItemBuilder, final int layoutId,
-                               final ViewGroup parent) {
-        super(infoItemBuilder, layoutId, parent);
-
-        itemRoot = itemView.findViewById(R.id.itemRoot);
-        itemThumbnailView = itemView.findViewById(R.id.itemThumbnailView);
-        itemLikesCountView = itemView.findViewById(R.id.detail_thumbs_up_count_view);
-        itemPublishedTime = itemView.findViewById(R.id.itemPublishedTime);
-        itemContentView = itemView.findViewById(R.id.itemCommentContentView);
-
-        commentHorizontalPadding = (int) infoItemBuilder.getContext()
-                .getResources().getDimension(R.dimen.comments_horizontal_padding);
-        commentVerticalPadding = (int) infoItemBuilder.getContext()
-                .getResources().getDimension(R.dimen.comments_vertical_padding);
-
-        paintAtContentSize = new Paint();
-        paintAtContentSize.setTextSize(itemContentView.getTextSize());
-        ellipsisWidthPx = paintAtContentSize.measureText(ELLIPSIS);
-    }
-
-    public CommentsMiniInfoItemHolder(final InfoItemBuilder infoItemBuilder,
-                                      final ViewGroup parent) {
-        this(infoItemBuilder, R.layout.list_comments_mini_item, parent);
-    }
-
-    @Override
-    public void updateFromItem(final InfoItem infoItem,
-                               final HistoryRecordManager historyRecordManager) {
-        if (!(infoItem instanceof CommentsInfoItem)) {
-            return;
-        }
-        final CommentsInfoItem item = (CommentsInfoItem) infoItem;
-
-        PicassoHelper.loadAvatar(item.getUploaderAvatarUrl()).into(itemThumbnailView);
-        if (PicassoHelper.getShouldLoadImages()) {
-            itemThumbnailView.setVisibility(View.VISIBLE);
-            itemRoot.setPadding(commentVerticalPadding, commentVerticalPadding,
-                    commentVerticalPadding, commentVerticalPadding);
-        } else {
-            itemThumbnailView.setVisibility(View.GONE);
-            itemRoot.setPadding(commentHorizontalPadding, commentVerticalPadding,
-                    commentHorizontalPadding, commentVerticalPadding);
-        }
-
-
-        itemThumbnailView.setOnClickListener(view -> openCommentAuthor(item));
-
-        try {
-            streamService = NewPipe.getService(item.getServiceId());
-        } catch (final ExtractionException e) {
-            // should never happen
-            ErrorUtil.showUiErrorSnackbar(itemBuilder.getContext(), "Getting StreamingService", e);
-            Log.w(TAG, "Cannot obtain service from comment service id, defaulting to YouTube", e);
-            streamService = ServiceList.YouTube;
-        }
-        streamUrl = item.getUrl();
-        commentText = item.getCommentText();
-        ellipsize();
-
-        //noinspection ClickableViewAccessibility
-        itemContentView.setOnTouchListener(CommentTextOnTouchListener.INSTANCE);
-
-        if (item.getLikeCount() >= 0) {
-            itemLikesCountView.setText(
-                    Localization.shortCount(
-                            itemBuilder.getContext(),
-                            item.getLikeCount()));
-        } else {
-            itemLikesCountView.setText("-");
-        }
-
-        if (item.getUploadDate() != null) {
-            itemPublishedTime.setText(Localization.relativeTime(item.getUploadDate()
-                    .offsetDateTime()));
-        } else {
-            itemPublishedTime.setText(item.getTextualUploadDate());
-        }
-
-        itemView.setOnClickListener(view -> {
-            toggleEllipsize();
-            if (itemBuilder.getOnCommentsSelectedListener() != null) {
-                itemBuilder.getOnCommentsSelectedListener().selected(item);
-            }
-        });
-
-
-        itemView.setOnLongClickListener(view -> {
-            if (DeviceUtils.isTv(itemBuilder.getContext())) {
-                openCommentAuthor(item);
-            } else {
-                final CharSequence text = itemContentView.getText();
-                if (text != null) {
-                    ShareUtils.copyToClipboard(itemBuilder.getContext(), text.toString());
-                }
-            }
-            return true;
-        });
-    }
-
-    private void openCommentAuthor(final CommentsInfoItem item) {
-        if (isEmpty(item.getUploaderUrl())) {
-            return;
-        }
-        final AppCompatActivity activity = (AppCompatActivity) itemBuilder.getContext();
-        try {
-            NavigationHelper.openChannelFragment(
-                    activity.getSupportFragmentManager(),
-                    item.getServiceId(),
-                    item.getUploaderUrl(),
-                    item.getUploaderName());
-        } catch (final Exception e) {
-            ErrorUtil.showUiErrorSnackbar(activity, "Opening channel fragment", e);
-        }
-    }
-
-    private void allowLinkFocus() {
-        itemContentView.setMovementMethod(LinkMovementMethod.getInstance());
-    }
-
-    private void denyLinkFocus() {
-        itemContentView.setMovementMethod(null);
-    }
-
-    private boolean shouldFocusLinks() {
-        if (itemView.isInTouchMode()) {
-            return false;
-        }
-
-        final URLSpan[] urls = itemContentView.getUrls();
-
-        return urls != null && urls.length != 0;
-    }
-
-    private void determineMovementMethod() {
-        if (shouldFocusLinks()) {
-            allowLinkFocus();
-        } else {
-            denyLinkFocus();
-        }
-    }
-
-    private void ellipsize() {
-        itemContentView.setMaxLines(COMMENT_EXPANDED_LINES);
-        linkifyCommentContentView(v -> {
-            boolean hasEllipsis = false;
-
-            final CharSequence charSeqText = itemContentView.getText();
-            if (charSeqText != null && itemContentView.getLineCount() > COMMENT_DEFAULT_LINES) {
-                // Note that converting to String removes spans (i.e. links), but that's something
-                // we actually want since when the text is ellipsized we want all clicks on the
-                // comment to expand the comment, not to open links.
-                final String text = charSeqText.toString();
-
-                final Layout layout = itemContentView.getLayout();
-                final float lineWidth = layout.getLineWidth(COMMENT_DEFAULT_LINES - 1);
-                final float layoutWidth = layout.getWidth();
-                final int lineStart = layout.getLineStart(COMMENT_DEFAULT_LINES - 1);
-                final int lineEnd = layout.getLineEnd(COMMENT_DEFAULT_LINES - 1);
-
-                // remove characters up until there is enough space for the ellipsis
-                // (also summing 2 more pixels, just to be sure to avoid float rounding errors)
-                int end = lineEnd;
-                float removedCharactersWidth = 0.0f;
-                while (lineWidth - removedCharactersWidth + ellipsisWidthPx + 2.0f > layoutWidth
-                        && end >= lineStart) {
-                    end -= 1;
-                    // recalculate each time to account for ligatures or other similar things
-                    removedCharactersWidth = paintAtContentSize.measureText(
-                            text.substring(end, lineEnd));
-                }
-
-                // remove trailing spaces and newlines
-                while (end > 0 && Character.isWhitespace(text.charAt(end - 1))) {
-                    end -= 1;
-                }
-
-                final String newVal = text.substring(0, end) + ELLIPSIS;
-                itemContentView.setText(newVal);
-                hasEllipsis = true;
-            }
-
-            itemContentView.setMaxLines(COMMENT_DEFAULT_LINES);
-            if (hasEllipsis) {
-                denyLinkFocus();
-            } else {
-                determineMovementMethod();
-            }
-        });
-    }
-
-    private void toggleEllipsize() {
-        final CharSequence text = itemContentView.getText();
-        if (!isEmpty(text) && text.charAt(text.length() - 1) == ELLIPSIS.charAt(0)) {
-            expand();
-        } else if (itemContentView.getLineCount() > COMMENT_DEFAULT_LINES) {
-            ellipsize();
-        }
-    }
-
-    private void expand() {
-        itemContentView.setMaxLines(COMMENT_EXPANDED_LINES);
-        linkifyCommentContentView(v -> determineMovementMethod());
-    }
-
-    private void linkifyCommentContentView(@Nullable final Consumer<TextView> onCompletion) {
-        disposables.clear();
-        if (commentText != null) {
-            TextLinkifier.fromDescription(itemContentView, commentText,
-                    HtmlCompat.FROM_HTML_MODE_LEGACY, streamService, streamUrl, disposables,
-                    onCompletion);
-        }
-    }
-}

app/src/main/java/org/schabi/newpipe/info_list/holder/PlaylistMiniInfoItemHolder.java

@@ -9,7 +9,7 @@ import org.schabi.newpipe.extractor.InfoItem;
 import org.schabi.newpipe.extractor.playlist.PlaylistInfoItem;
 import org.schabi.newpipe.info_list.InfoItemBuilder;
 import org.schabi.newpipe.local.history.HistoryRecordManager;
-import org.schabi.newpipe.util.PicassoHelper;
+import org.schabi.newpipe.util.image.PicassoHelper;
 import org.schabi.newpipe.util.Localization;
 
 public class PlaylistMiniInfoItemHolder extends InfoItemHolder {
@@ -46,7 +46,7 @@ public class PlaylistMiniInfoItemHolder extends InfoItemHolder {
                 .localizeStreamCountMini(itemStreamCountView.getContext(), item.getStreamCount()));
         itemUploaderView.setText(item.getUploaderName());
 
-        PicassoHelper.loadPlaylistThumbnail(item.getThumbnailUrl()).into(itemThumbnailView);
+        PicassoHelper.loadPlaylistThumbnail(item.getThumbnails()).into(itemThumbnailView);
 
         itemView.setOnClickListener(view -> {
             if (itemBuilder.getOnPlaylistSelectedListener() != null) {

app/src/main/java/org/schabi/newpipe/info_list/holder/StreamInfoItemHolder.java

@@ -12,10 +12,6 @@ import org.schabi.newpipe.info_list.InfoItemBuilder;
 import org.schabi.newpipe.local.history.HistoryRecordManager;
 import org.schabi.newpipe.util.Localization;
 
-import androidx.preference.PreferenceManager;
-
-import static org.schabi.newpipe.MainActivity.DEBUG;
-
 /*
  * Created by Christian Schabesberger on 01.08.16.
  * <p>
@@ -81,7 +77,9 @@ public class StreamInfoItemHolder extends StreamMiniInfoItemHolder {
             }
         }
 
-        final String uploadDate = getFormattedRelativeUploadDate(infoItem);
+        final String uploadDate = Localization.relativeTimeOrTextual(itemBuilder.getContext(),
+                infoItem.getUploadDate(),
+                infoItem.getTextualUploadDate());
         if (!TextUtils.isEmpty(uploadDate)) {
             if (viewsAndDate.isEmpty()) {
                 return uploadDate;
@@ -92,20 +90,4 @@ public class StreamInfoItemHolder extends StreamMiniInfoItemHolder {
 
         return viewsAndDate;
     }
-
-    private String getFormattedRelativeUploadDate(final StreamInfoItem infoItem) {
-        if (infoItem.getUploadDate() != null) {
-            String formattedRelativeTime = Localization
-                    .relativeTime(infoItem.getUploadDate().offsetDateTime());
-
-            if (DEBUG && PreferenceManager.getDefaultSharedPreferences(itemBuilder.getContext())
-                    .getBoolean(itemBuilder.getContext()
-                            .getString(R.string.show_original_time_ago_key), false)) {
-                formattedRelativeTime += " (" + infoItem.getTextualUploadDate() + ")";
-            }
-            return formattedRelativeTime;
-        } else {
-            return infoItem.getTextualUploadDate();
-        }
-    }
 }

app/src/main/java/org/schabi/newpipe/info_list/holder/StreamMiniInfoItemHolder.java

@@ -16,7 +16,7 @@ import org.schabi.newpipe.ktx.ViewUtils;
 import org.schabi.newpipe.local.history.HistoryRecordManager;
 import org.schabi.newpipe.util.DependentPreferenceHelper;
 import org.schabi.newpipe.util.Localization;
-import org.schabi.newpipe.util.PicassoHelper;
+import org.schabi.newpipe.util.image.PicassoHelper;
 import org.schabi.newpipe.util.StreamTypeUtil;
 import org.schabi.newpipe.views.AnimatedProgressBar;
 
@@ -87,7 +87,7 @@ public class StreamMiniInfoItemHolder extends InfoItemHolder {
         }
 
         // Default thumbnail is shown on error, while loading and if the url is empty
-        PicassoHelper.loadThumbnail(item.getThumbnailUrl()).into(itemThumbnailView);
+        PicassoHelper.loadThumbnail(item.getThumbnails()).into(itemThumbnailView);
 
         itemView.setOnClickListener(view -> {
             if (itemBuilder.getOnStreamSelectedListener() != null) {

app/src/main/java/org/schabi/newpipe/ktx/Bundle.kt

@@ -0,0 +1,9 @@
+package org.schabi.newpipe.ktx
+
+import android.os.Bundle
+import android.os.Parcelable
+import androidx.core.os.BundleCompat
+
+inline fun <reified T : Parcelable> Bundle.parcelableArrayList(key: String?): ArrayList<T>? {
+    return BundleCompat.getParcelableArrayList(this, key, T::class.java)
+}

app/src/main/java/org/schabi/newpipe/local/LocalItemListAdapter.java

@@ -14,6 +14,7 @@ import org.schabi.newpipe.database.LocalItem;
 import org.schabi.newpipe.database.stream.model.StreamStateEntity;
 import org.schabi.newpipe.info_list.ItemViewMode;
 import org.schabi.newpipe.local.history.HistoryRecordManager;
+import org.schabi.newpipe.local.holder.LocalBookmarkPlaylistItemHolder;
 import org.schabi.newpipe.local.holder.LocalItemHolder;
 import org.schabi.newpipe.local.holder.LocalPlaylistCardItemHolder;
 import org.schabi.newpipe.local.holder.LocalPlaylistGridItemHolder;
@@ -24,6 +25,7 @@ import org.schabi.newpipe.local.holder.LocalPlaylistStreamItemHolder;
 import org.schabi.newpipe.local.holder.LocalStatisticStreamCardItemHolder;
 import org.schabi.newpipe.local.holder.LocalStatisticStreamGridItemHolder;
 import org.schabi.newpipe.local.holder.LocalStatisticStreamItemHolder;
+import org.schabi.newpipe.local.holder.RemoteBookmarkPlaylistItemHolder;
 import org.schabi.newpipe.local.holder.RemotePlaylistCardItemHolder;
 import org.schabi.newpipe.local.holder.RemotePlaylistGridItemHolder;
 import org.schabi.newpipe.local.holder.RemotePlaylistItemHolder;
@@ -73,10 +75,12 @@ public class LocalItemListAdapter extends RecyclerView.Adapter<RecyclerView.View
     private static final int LOCAL_PLAYLIST_HOLDER_TYPE = 0x2000;
     private static final int LOCAL_PLAYLIST_GRID_HOLDER_TYPE = 0x2001;
     private static final int LOCAL_PLAYLIST_CARD_HOLDER_TYPE = 0x2002;
+    private static final int LOCAL_BOOKMARK_PLAYLIST_HOLDER_TYPE = 0x2003;
 
     private static final int REMOTE_PLAYLIST_HOLDER_TYPE = 0x3000;
     private static final int REMOTE_PLAYLIST_GRID_HOLDER_TYPE = 0x3001;
     private static final int REMOTE_PLAYLIST_CARD_HOLDER_TYPE = 0x3002;
+    private static final int REMOTE_BOOKMARK_PLAYLIST_HOLDER_TYPE = 0x3003;
 
     private final LocalItemBuilder localItemBuilder;
     private final ArrayList<LocalItem> localItems;
@@ -87,6 +91,7 @@ public class LocalItemListAdapter extends RecyclerView.Adapter<RecyclerView.View
     private View header = null;
     private View footer = null;
     private ItemViewMode itemViewMode = ItemViewMode.LIST;
+    private boolean useItemHandle = false;
 
     public LocalItemListAdapter(final Context context) {
         recordManager = new HistoryRecordManager(context);
@@ -180,6 +185,10 @@ public class LocalItemListAdapter extends RecyclerView.Adapter<RecyclerView.View
         this.itemViewMode = itemViewMode;
     }
 
+    public void setUseItemHandle(final boolean useItemHandle) {
+        this.useItemHandle = useItemHandle;
+    }
+
     public void setHeader(final View header) {
         final boolean changed = header != this.header;
         this.header = header;
@@ -257,7 +266,9 @@ public class LocalItemListAdapter extends RecyclerView.Adapter<RecyclerView.View
         final LocalItem item = localItems.get(position);
         switch (item.getLocalItemType()) {
             case PLAYLIST_LOCAL_ITEM:
-                if (itemViewMode == ItemViewMode.CARD) {
+                if (useItemHandle) {
+                    return LOCAL_BOOKMARK_PLAYLIST_HOLDER_TYPE;
+                } else if (itemViewMode == ItemViewMode.CARD) {
                     return LOCAL_PLAYLIST_CARD_HOLDER_TYPE;
                 } else if (itemViewMode == ItemViewMode.GRID) {
                     return LOCAL_PLAYLIST_GRID_HOLDER_TYPE;
@@ -265,7 +276,9 @@ public class LocalItemListAdapter extends RecyclerView.Adapter<RecyclerView.View
                     return LOCAL_PLAYLIST_HOLDER_TYPE;
                 }
             case PLAYLIST_REMOTE_ITEM:
-                if (itemViewMode == ItemViewMode.CARD) {
+                if (useItemHandle) {
+                    return REMOTE_BOOKMARK_PLAYLIST_HOLDER_TYPE;
+                } else if (itemViewMode == ItemViewMode.CARD) {
                     return REMOTE_PLAYLIST_CARD_HOLDER_TYPE;
                 } else if (itemViewMode == ItemViewMode.GRID) {
                     return REMOTE_PLAYLIST_GRID_HOLDER_TYPE;
@@ -314,12 +327,16 @@ public class LocalItemListAdapter extends RecyclerView.Adapter<RecyclerView.View
                 return new LocalPlaylistGridItemHolder(localItemBuilder, parent);
             case LOCAL_PLAYLIST_CARD_HOLDER_TYPE:
                 return new LocalPlaylistCardItemHolder(localItemBuilder, parent);
+            case LOCAL_BOOKMARK_PLAYLIST_HOLDER_TYPE:
+                return new LocalBookmarkPlaylistItemHolder(localItemBuilder, parent);
             case REMOTE_PLAYLIST_HOLDER_TYPE:
                 return new RemotePlaylistItemHolder(localItemBuilder, parent);
             case REMOTE_PLAYLIST_GRID_HOLDER_TYPE:
                 return new RemotePlaylistGridItemHolder(localItemBuilder, parent);
             case REMOTE_PLAYLIST_CARD_HOLDER_TYPE:
                 return new RemotePlaylistCardItemHolder(localItemBuilder, parent);
+            case REMOTE_BOOKMARK_PLAYLIST_HOLDER_TYPE:
+                return new RemoteBookmarkPlaylistItemHolder(localItemBuilder, parent);
             case STREAM_PLAYLIST_HOLDER_TYPE:
                 return new LocalPlaylistStreamItemHolder(localItemBuilder, parent);
             case STREAM_PLAYLIST_GRID_HOLDER_TYPE:

app/src/main/java/org/schabi/newpipe/local/bookmark/BookmarkFragment.java

@@ -1,10 +1,13 @@
 package org.schabi.newpipe.local.bookmark;
 
+import static org.schabi.newpipe.local.bookmark.MergedPlaylistManager.getMergedOrderedPlaylists;
+
 import android.content.DialogInterface;
 import android.os.Bundle;
 import android.os.Parcelable;
 import android.text.InputType;
 import android.util.Log;
+import android.util.Pair;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -13,6 +16,8 @@ import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.appcompat.app.AlertDialog;
 import androidx.fragment.app.FragmentManager;
+import androidx.recyclerview.widget.ItemTouchHelper;
+import androidx.recyclerview.widget.RecyclerView;
 
 import org.reactivestreams.Subscriber;
 import org.reactivestreams.Subscription;
@@ -27,29 +32,45 @@ import org.schabi.newpipe.databinding.DialogEditTextBinding;
 import org.schabi.newpipe.error.ErrorInfo;
 import org.schabi.newpipe.error.UserAction;
 import org.schabi.newpipe.local.BaseLocalListFragment;
+import org.schabi.newpipe.local.holder.LocalBookmarkPlaylistItemHolder;
+import org.schabi.newpipe.local.holder.RemoteBookmarkPlaylistItemHolder;
 import org.schabi.newpipe.local.playlist.LocalPlaylistManager;
 import org.schabi.newpipe.local.playlist.RemotePlaylistManager;
+import org.schabi.newpipe.util.debounce.DebounceSavable;
+import org.schabi.newpipe.util.debounce.DebounceSaver;
 import org.schabi.newpipe.util.NavigationHelper;
 import org.schabi.newpipe.util.OnClickGesture;
 
 import java.util.ArrayList;
 import java.util.List;
+import java.util.concurrent.atomic.AtomicBoolean;
 
 import icepick.State;
 import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers;
-import io.reactivex.rxjava3.core.Flowable;
-import io.reactivex.rxjava3.core.Single;
 import io.reactivex.rxjava3.disposables.CompositeDisposable;
 import io.reactivex.rxjava3.disposables.Disposable;
 
-public final class BookmarkFragment extends BaseLocalListFragment<List<PlaylistLocalItem>, Void> {
+public final class BookmarkFragment extends BaseLocalListFragment<List<PlaylistLocalItem>, Void>
+        implements DebounceSavable {
+
+    private static final int MINIMUM_INITIAL_DRAG_VELOCITY = 12;
     @State
-    protected Parcelable itemsListState;
+    Parcelable itemsListState;
 
     private Subscription databaseSubscription;
     private CompositeDisposable disposables = new CompositeDisposable();
     private LocalPlaylistManager localPlaylistManager;
     private RemotePlaylistManager remotePlaylistManager;
+    private ItemTouchHelper itemTouchHelper;
+
+    /* Have the bookmarked playlists been fully loaded from db */
+    private AtomicBoolean isLoadingComplete;
+
+    /* Gives enough time to avoid interrupting user sorting operations */
+    @Nullable
+    private DebounceSaver debounceSaver;
+
+    private List<Pair<Long, LocalItem.LocalItemType>> deletedItems;
 
     ///////////////////////////////////////////////////////////////////////////
     // Fragment LifeCycle - Creation
@@ -65,6 +86,11 @@ public final class BookmarkFragment extends BaseLocalListFragment<List<PlaylistL
         localPlaylistManager = new LocalPlaylistManager(database);
         remotePlaylistManager = new RemotePlaylistManager(database);
         disposables = new CompositeDisposable();
+
+        isLoadingComplete = new AtomicBoolean();
+        debounceSaver = new DebounceSaver(3000, this);
+
+        deletedItems = new ArrayList<>();
     }
 
     @Nullable
@@ -94,12 +120,17 @@ public final class BookmarkFragment extends BaseLocalListFragment<List<PlaylistL
     @Override
     protected void initViews(final View rootView, final Bundle savedInstanceState) {
         super.initViews(rootView, savedInstanceState);
+
+        itemListAdapter.setUseItemHandle(true);
     }
 
     @Override
     protected void initListeners() {
         super.initListeners();
 
+        itemTouchHelper = new ItemTouchHelper(getItemTouchCallback());
+        itemTouchHelper.attachToRecyclerView(itemsList);
+
         itemListAdapter.setSelectedListener(new OnClickGesture<>() {
             @Override
             public void selected(final LocalItem selectedItem) {
@@ -107,7 +138,7 @@ public final class BookmarkFragment extends BaseLocalListFragment<List<PlaylistL
 
                 if (selectedItem instanceof PlaylistMetadataEntry) {
                     final PlaylistMetadataEntry entry = ((PlaylistMetadataEntry) selectedItem);
-                    NavigationHelper.openLocalPlaylistFragment(fragmentManager, entry.uid,
+                    NavigationHelper.openLocalPlaylistFragment(fragmentManager, entry.getUid(),
                             entry.name);
 
                 } else if (selectedItem instanceof PlaylistRemoteEntity) {
@@ -128,6 +159,14 @@ public final class BookmarkFragment extends BaseLocalListFragment<List<PlaylistL
                     showRemoteDeleteDialog((PlaylistRemoteEntity) selectedItem);
                 }
             }
+
+            @Override
+            public void drag(final LocalItem selectedItem,
+                             final RecyclerView.ViewHolder viewHolder) {
+                if (itemTouchHelper != null) {
+                    itemTouchHelper.startDrag(viewHolder);
+                }
+            }
         });
     }
 
@@ -139,8 +178,13 @@ public final class BookmarkFragment extends BaseLocalListFragment<List<PlaylistL
     public void startLoading(final boolean forceLoad) {
         super.startLoading(forceLoad);
 
-        Flowable.combineLatest(localPlaylistManager.getPlaylists(),
-                remotePlaylistManager.getPlaylists(), PlaylistLocalItem::merge)
+        if (debounceSaver != null) {
+            disposables.add(debounceSaver.getDebouncedSaver());
+            debounceSaver.setNoChangesToSave();
+        }
+        isLoadingComplete.set(false);
+
+        getMergedOrderedPlaylists(localPlaylistManager, remotePlaylistManager)
                 .onBackpressureLatest()
                 .observeOn(AndroidSchedulers.mainThread())
                 .subscribe(getPlaylistsSubscriber());
@@ -154,6 +198,9 @@ public final class BookmarkFragment extends BaseLocalListFragment<List<PlaylistL
     public void onPause() {
         super.onPause();
         itemsListState = itemsList.getLayoutManager().onSaveInstanceState();
+
+        // Save on exit
+        saveImmediate();
     }
 
     @Override
@@ -168,19 +215,27 @@ public final class BookmarkFragment extends BaseLocalListFragment<List<PlaylistL
         }
 
         databaseSubscription = null;
+        itemTouchHelper = null;
     }
 
     @Override
     public void onDestroy() {
         super.onDestroy();
+        if (debounceSaver != null) {
+            debounceSaver.getDebouncedSaveSignal().onComplete();
+        }
         if (disposables != null) {
             disposables.dispose();
         }
 
+        debounceSaver = null;
         disposables = null;
         localPlaylistManager = null;
         remotePlaylistManager = null;
         itemsListState = null;
+
+        isLoadingComplete = null;
+        deletedItems = null;
     }
 
     ///////////////////////////////////////////////////////////////////////////
@@ -188,10 +243,12 @@ public final class BookmarkFragment extends BaseLocalListFragment<List<PlaylistL
     ///////////////////////////////////////////////////////////////////////////
 
     private Subscriber<List<PlaylistLocalItem>> getPlaylistsSubscriber() {
-        return new Subscriber<List<PlaylistLocalItem>>() {
+        return new Subscriber<>() {
             @Override
             public void onSubscribe(final Subscription s) {
                 showLoading();
+                isLoadingComplete.set(false);
+
                 if (databaseSubscription != null) {
                     databaseSubscription.cancel();
                 }
@@ -201,7 +258,10 @@ public final class BookmarkFragment extends BaseLocalListFragment<List<PlaylistL
 
             @Override
             public void onNext(final List<PlaylistLocalItem> subscriptions) {
-                handleResult(subscriptions);
+                if (debounceSaver == null || !debounceSaver.getIsModified()) {
+                    handleResult(subscriptions);
+                    isLoadingComplete.set(true);
+                }
                 if (databaseSubscription != null) {
                     databaseSubscription.request(1);
                 }
@@ -214,7 +274,8 @@ public final class BookmarkFragment extends BaseLocalListFragment<List<PlaylistL
             }
 
             @Override
-            public void onComplete() { }
+            public void onComplete() {
+            }
         };
     }
 
@@ -249,12 +310,183 @@ public final class BookmarkFragment extends BaseLocalListFragment<List<PlaylistL
         }
     }
 
+    /*//////////////////////////////////////////////////////////////////////////
+    // Playlist Metadata Manipulation
+    //////////////////////////////////////////////////////////////////////////*/
+
+    private void changeLocalPlaylistName(final long id, final String name) {
+        if (localPlaylistManager == null) {
+            return;
+        }
+
+        if (DEBUG) {
+            Log.d(TAG, "Updating playlist id=[" + id + "] "
+                    + "with new name=[" + name + "] items");
+        }
+
+        final Disposable disposable = localPlaylistManager.renamePlaylist(id, name)
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribe(longs -> { /*Do nothing on success*/ }, throwable -> showError(
+                        new ErrorInfo(throwable,
+                                UserAction.REQUESTED_BOOKMARK,
+                                "Changing playlist name")));
+        disposables.add(disposable);
+    }
+
+    private void deleteItem(final PlaylistLocalItem item) {
+        if (itemListAdapter == null) {
+            return;
+        }
+        itemListAdapter.removeItem(item);
+
+        if (item instanceof PlaylistMetadataEntry) {
+            deletedItems.add(new Pair<>(item.getUid(),
+                    LocalItem.LocalItemType.PLAYLIST_LOCAL_ITEM));
+        } else if (item instanceof PlaylistRemoteEntity) {
+            deletedItems.add(new Pair<>(item.getUid(),
+                    LocalItem.LocalItemType.PLAYLIST_REMOTE_ITEM));
+        }
+
+        if (debounceSaver != null) {
+            debounceSaver.setHasChangesToSave();
+            saveImmediate();
+        }
+    }
+
+    @Override
+    public void saveImmediate() {
+        if (itemListAdapter == null) {
+            return;
+        }
+
+        // List must be loaded and modified in order to save
+        if (isLoadingComplete == null || debounceSaver == null
+                || !isLoadingComplete.get() || !debounceSaver.getIsModified()) {
+            return;
+        }
+
+        final List<LocalItem> items = itemListAdapter.getItemsList();
+        final List<PlaylistMetadataEntry> localItemsUpdate = new ArrayList<>();
+        final List<Long> localItemsDeleteUid = new ArrayList<>();
+        final List<PlaylistRemoteEntity> remoteItemsUpdate = new ArrayList<>();
+        final List<Long> remoteItemsDeleteUid = new ArrayList<>();
+
+        // Calculate display index
+        for (int i = 0; i < items.size(); i++) {
+            final LocalItem item = items.get(i);
+
+            if (item instanceof PlaylistMetadataEntry
+                    && ((PlaylistMetadataEntry) item).getDisplayIndex() != i) {
+                ((PlaylistMetadataEntry) item).setDisplayIndex(i);
+                localItemsUpdate.add((PlaylistMetadataEntry) item);
+            } else if (item instanceof PlaylistRemoteEntity
+                    && ((PlaylistRemoteEntity) item).getDisplayIndex() != i) {
+                ((PlaylistRemoteEntity) item).setDisplayIndex(i);
+                remoteItemsUpdate.add((PlaylistRemoteEntity) item);
+            }
+        }
+
+        // Find deleted items
+        for (final Pair<Long, LocalItem.LocalItemType> item : deletedItems) {
+            if (item.second.equals(LocalItem.LocalItemType.PLAYLIST_LOCAL_ITEM)) {
+                localItemsDeleteUid.add(item.first);
+            } else if (item.second.equals(LocalItem.LocalItemType.PLAYLIST_REMOTE_ITEM)) {
+                remoteItemsDeleteUid.add(item.first);
+            }
+        }
+
+        deletedItems.clear();
+
+        // 1. Update local playlists
+        // 2. Update remote playlists
+        // 3. Set NoChangesToSave
+        disposables.add(localPlaylistManager.updatePlaylists(localItemsUpdate, localItemsDeleteUid)
+                .mergeWith(remotePlaylistManager.updatePlaylists(
+                        remoteItemsUpdate, remoteItemsDeleteUid))
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribe(() -> {
+                            if (debounceSaver != null) {
+                                debounceSaver.setNoChangesToSave();
+                            }
+                        },
+                        throwable -> showError(new ErrorInfo(throwable,
+                                UserAction.REQUESTED_BOOKMARK, "Saving playlist"))
+                ));
+
+    }
+
+    private ItemTouchHelper.SimpleCallback getItemTouchCallback() {
+        // if adding grid layout, also include ItemTouchHelper.LEFT | ItemTouchHelper.RIGHT
+        // with an `if (shouldUseGridLayout()) ...`
+        return new ItemTouchHelper.SimpleCallback(ItemTouchHelper.UP | ItemTouchHelper.DOWN,
+                ItemTouchHelper.ACTION_STATE_IDLE) {
+            @Override
+            public int interpolateOutOfBoundsScroll(@NonNull final RecyclerView recyclerView,
+                                                    final int viewSize,
+                                                    final int viewSizeOutOfBounds,
+                                                    final int totalSize,
+                                                    final long msSinceStartScroll) {
+                final int standardSpeed = super.interpolateOutOfBoundsScroll(recyclerView,
+                        viewSize, viewSizeOutOfBounds, totalSize, msSinceStartScroll);
+                final int minimumAbsVelocity = Math.max(MINIMUM_INITIAL_DRAG_VELOCITY,
+                        Math.abs(standardSpeed));
+                return minimumAbsVelocity * (int) Math.signum(viewSizeOutOfBounds);
+            }
+
+            @Override
+            public boolean onMove(@NonNull final RecyclerView recyclerView,
+                                  @NonNull final RecyclerView.ViewHolder source,
+                                  @NonNull final RecyclerView.ViewHolder target) {
+
+                // Allow swap LocalBookmarkPlaylistItemHolder and RemoteBookmarkPlaylistItemHolder.
+                if (itemListAdapter == null
+                        || source.getItemViewType() != target.getItemViewType()
+                        && !(
+                        (
+                                (source instanceof LocalBookmarkPlaylistItemHolder)
+                                        || (source instanceof RemoteBookmarkPlaylistItemHolder)
+                        )
+                                && (
+                                (target instanceof LocalBookmarkPlaylistItemHolder)
+                                        || (target instanceof RemoteBookmarkPlaylistItemHolder)
+                        ))
+                ) {
+                    return false;
+                }
+
+                final int sourceIndex = source.getBindingAdapterPosition();
+                final int targetIndex = target.getBindingAdapterPosition();
+                final boolean isSwapped = itemListAdapter.swapItems(sourceIndex, targetIndex);
+                if (isSwapped && debounceSaver != null) {
+                    debounceSaver.setHasChangesToSave();
+                }
+                return isSwapped;
+            }
+
+            @Override
+            public boolean isLongPressDragEnabled() {
+                return false;
+            }
+
+            @Override
+            public boolean isItemViewSwipeEnabled() {
+                return false;
+            }
+
+            @Override
+            public void onSwiped(@NonNull final RecyclerView.ViewHolder viewHolder,
+                                 final int swipeDir) {
+                // Do nothing.
+            }
+        };
+    }
+
     ///////////////////////////////////////////////////////////////////////////
     // Utils
     ///////////////////////////////////////////////////////////////////////////
 
     private void showRemoteDeleteDialog(final PlaylistRemoteEntity item) {
-        showDeleteDialog(item.getName(), remotePlaylistManager.deletePlaylist(item.getUid()));
+        showDeleteDialog(item.getName(), item);
     }
 
     private void showLocalDialog(final PlaylistMetadataEntry selectedItem) {
@@ -262,7 +494,7 @@ public final class BookmarkFragment extends BaseLocalListFragment<List<PlaylistL
         final String delete = getString(R.string.delete);
         final String unsetThumbnail = getString(R.string.unset_playlist_thumbnail);
         final boolean isThumbnailPermanent = localPlaylistManager
-                .getIsPlaylistThumbnailPermanent(selectedItem.uid);
+                .getIsPlaylistThumbnailPermanent(selectedItem.getUid());
 
         final ArrayList<String> items = new ArrayList<>();
         items.add(rename);
@@ -275,13 +507,12 @@ public final class BookmarkFragment extends BaseLocalListFragment<List<PlaylistL
             if (items.get(index).equals(rename)) {
                 showRenameDialog(selectedItem);
             } else if (items.get(index).equals(delete)) {
-                showDeleteDialog(selectedItem.name,
-                        localPlaylistManager.deletePlaylist(selectedItem.uid));
+                showDeleteDialog(selectedItem.name, selectedItem);
             } else if (isThumbnailPermanent && items.get(index).equals(unsetThumbnail)) {
                 final long thumbnailStreamId = localPlaylistManager
-                        .getAutomaticPlaylistThumbnailStreamId(selectedItem.uid);
+                        .getAutomaticPlaylistThumbnailStreamId(selectedItem.getUid());
                 localPlaylistManager
-                        .changePlaylistThumbnail(selectedItem.uid, thumbnailStreamId, false)
+                        .changePlaylistThumbnail(selectedItem.getUid(), thumbnailStreamId, false)
                         .observeOn(AndroidSchedulers.mainThread())
                         .subscribe();
             }
@@ -303,13 +534,13 @@ public final class BookmarkFragment extends BaseLocalListFragment<List<PlaylistL
                 .setView(dialogBinding.getRoot())
                 .setPositiveButton(R.string.rename_playlist, (dialog, which) ->
                         changeLocalPlaylistName(
-                                selectedItem.uid,
+                                selectedItem.getUid(),
                                 dialogBinding.dialogEditText.getText().toString()))
                 .setNegativeButton(R.string.cancel, null)
                 .show();
     }
 
-    private void showDeleteDialog(final String name, final Single<Integer> deleteReactor) {
+    private void showDeleteDialog(final String name, final PlaylistLocalItem item) {
         if (activity == null || disposables == null) {
             return;
         }
@@ -318,35 +549,8 @@ public final class BookmarkFragment extends BaseLocalListFragment<List<PlaylistL
                 .setTitle(name)
                 .setMessage(R.string.delete_playlist_prompt)
                 .setCancelable(true)
-                .setPositiveButton(R.string.delete, (dialog, i) ->
-                        disposables.add(deleteReactor
-                                .observeOn(AndroidSchedulers.mainThread())
-                                .subscribe(ignored -> { /*Do nothing on success*/ }, throwable ->
-                                        showError(new ErrorInfo(throwable,
-                                                UserAction.REQUESTED_BOOKMARK,
-                                                "Deleting playlist")))))
+                .setPositiveButton(R.string.delete, (dialog, i) -> deleteItem(item))
                 .setNegativeButton(R.string.cancel, null)
                 .show();
     }
-
-    private void changeLocalPlaylistName(final long id, final String name) {
-        if (localPlaylistManager == null) {
-            return;
-        }
-
-        if (DEBUG) {
-            Log.d(TAG, "Updating playlist id=[" + id + "] "
-                    + "with new name=[" + name + "] items");
-        }
-
-        localPlaylistManager.renamePlaylist(id, name);
-        final Disposable disposable = localPlaylistManager.renamePlaylist(id, name)
-                .observeOn(AndroidSchedulers.mainThread())
-                .subscribe(longs -> { /*Do nothing on success*/ }, throwable -> showError(
-                        new ErrorInfo(throwable,
-                                UserAction.REQUESTED_BOOKMARK,
-                                "Changing playlist name")));
-        disposables.add(disposable);
-    }
 }
-

app/src/main/java/org/schabi/newpipe/local/bookmark/MergedPlaylistManager.java

@@ -0,0 +1,95 @@
+package org.schabi.newpipe.local.bookmark;
+
+import org.schabi.newpipe.database.playlist.PlaylistLocalItem;
+import org.schabi.newpipe.database.playlist.PlaylistMetadataEntry;
+import org.schabi.newpipe.database.playlist.model.PlaylistRemoteEntity;
+import org.schabi.newpipe.local.playlist.LocalPlaylistManager;
+import org.schabi.newpipe.local.playlist.RemotePlaylistManager;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.List;
+
+import io.reactivex.rxjava3.core.Flowable;
+
+/**
+ * Takes care of remote and local playlists at once, hence "merged".
+ */
+public final class MergedPlaylistManager {
+
+    private MergedPlaylistManager() {
+    }
+
+    public static Flowable<List<PlaylistLocalItem>> getMergedOrderedPlaylists(
+            final LocalPlaylistManager localPlaylistManager,
+            final RemotePlaylistManager remotePlaylistManager) {
+        return Flowable.combineLatest(
+                localPlaylistManager.getPlaylists(),
+                remotePlaylistManager.getPlaylists(),
+                MergedPlaylistManager::merge
+        );
+    }
+
+    /**
+     * Merge localPlaylists and remotePlaylists by the display index.
+     * If two items have the same display index, sort them in {@code CASE_INSENSITIVE_ORDER}.
+     *
+     * @param localPlaylists  local playlists, already sorted by display index
+     * @param remotePlaylists remote playlists, already sorted by display index
+     * @return merged playlists
+     */
+    public static List<PlaylistLocalItem> merge(
+            final List<PlaylistMetadataEntry> localPlaylists,
+            final List<PlaylistRemoteEntity> remotePlaylists) {
+
+        // This algorithm is similar to the merge operation in merge sort.
+        final List<PlaylistLocalItem> result = new ArrayList<>(
+                localPlaylists.size() + remotePlaylists.size());
+        final List<PlaylistLocalItem> itemsWithSameIndex = new ArrayList<>();
+
+        int i = 0;
+        int j = 0;
+        while (i < localPlaylists.size()) {
+            while (j < remotePlaylists.size()) {
+                if (remotePlaylists.get(j).getDisplayIndex()
+                        <= localPlaylists.get(i).getDisplayIndex()) {
+                    addItem(result, remotePlaylists.get(j), itemsWithSameIndex);
+                    j++;
+                } else {
+                    break;
+                }
+            }
+            addItem(result, localPlaylists.get(i), itemsWithSameIndex);
+            i++;
+        }
+        while (j < remotePlaylists.size()) {
+            addItem(result, remotePlaylists.get(j), itemsWithSameIndex);
+            j++;
+        }
+        addItemsWithSameIndex(result, itemsWithSameIndex);
+
+        return result;
+    }
+
+    private static void addItem(final List<PlaylistLocalItem> result,
+                                final PlaylistLocalItem item,
+                                final List<PlaylistLocalItem> itemsWithSameIndex) {
+        if (!itemsWithSameIndex.isEmpty()
+                && itemsWithSameIndex.get(0).getDisplayIndex() != item.getDisplayIndex()) {
+            // The new item has a different display index, add previous items with same
+            // index to the result.
+            addItemsWithSameIndex(result, itemsWithSameIndex);
+            itemsWithSameIndex.clear();
+        }
+        itemsWithSameIndex.add(item);
+    }
+
+    private static void addItemsWithSameIndex(final List<PlaylistLocalItem> result,
+                                              final List<PlaylistLocalItem> itemsWithSameIndex) {
+        Collections.sort(itemsWithSameIndex,
+                Comparator.comparing(PlaylistLocalItem::getOrderingName,
+                        Comparator.nullsLast(String.CASE_INSENSITIVE_ORDER)));
+        result.addAll(itemsWithSameIndex);
+    }
+}

app/src/main/java/org/schabi/newpipe/local/dialog/PlaylistAppendDialog.java

@@ -155,14 +155,14 @@ public final class PlaylistAppendDialog extends PlaylistDialog {
 
         final Toast successToast = Toast.makeText(getContext(), toastText, Toast.LENGTH_SHORT);
 
-        playlistDisposables.add(manager.appendToPlaylist(playlist.uid, streams)
+        playlistDisposables.add(manager.appendToPlaylist(playlist.getUid(), streams)
                 .observeOn(AndroidSchedulers.mainThread())
                 .subscribe(ignored -> {
                     successToast.show();
 
                     if (playlist.thumbnailUrl.equals(PlaylistEntity.DEFAULT_THUMBNAIL)) {
                         playlistDisposables.add(manager
-                                .changePlaylistThumbnail(playlist.uid, streams.get(0).getUid(),
+                                .changePlaylistThumbnail(playlist.getUid(), streams.get(0).getUid(),
                                         false)
                                 .observeOn(AndroidSchedulers.mainThread())
                                 .subscribe(ignore -> successToast.show()));

app/src/main/java/org/schabi/newpipe/local/feed/FeedFragment.kt

@@ -38,7 +38,6 @@ import android.view.ViewGroup
 import android.widget.Button
 import androidx.appcompat.app.AlertDialog
 import androidx.core.content.edit
-import androidx.core.math.MathUtils
 import androidx.core.os.bundleOf
 import androidx.core.view.isVisible
 import androidx.lifecycle.ViewModelProvider
@@ -60,6 +59,7 @@ import org.schabi.newpipe.database.feed.model.FeedGroupEntity
 import org.schabi.newpipe.database.subscription.SubscriptionEntity
 import org.schabi.newpipe.databinding.FragmentFeedBinding
 import org.schabi.newpipe.error.ErrorInfo
+import org.schabi.newpipe.error.ErrorUtil
 import org.schabi.newpipe.error.UserAction
 import org.schabi.newpipe.extractor.exceptions.AccountTerminatedException
 import org.schabi.newpipe.extractor.exceptions.ContentNotAvailableException
@@ -453,24 +453,33 @@ class FeedFragment : BaseStateFragment<FeedState>() {
             if (t is FeedLoadService.RequestException &&
                 t.cause is ContentNotAvailableException
             ) {
-                Single.fromCallable {
-                    NewPipeDatabase.getInstance(requireContext()).subscriptionDAO()
-                        .getSubscription(t.subscriptionId)
-                }.subscribeOn(Schedulers.io())
-                    .observeOn(AndroidSchedulers.mainThread())
-                    .subscribe(
-                        { subscriptionEntity ->
-                            handleFeedNotAvailable(
-                                subscriptionEntity,
-                                t.cause,
-                                errors.subList(i + 1, errors.size)
-                            )
-                        },
-                        { throwable -> Log.e(TAG, "Unable to process", throwable) }
-                    )
-                return // this will be called on the remaining errors by handleFeedNotAvailable()
+                disposables.add(
+                    Single.fromCallable {
+                        NewPipeDatabase.getInstance(requireContext()).subscriptionDAO()
+                            .getSubscription(t.subscriptionId)
+                    }
+                        .subscribeOn(Schedulers.io())
+                        .observeOn(AndroidSchedulers.mainThread())
+                        .subscribe(
+                            { subscriptionEntity ->
+                                handleFeedNotAvailable(
+                                    subscriptionEntity,
+                                    t.cause,
+                                    errors.subList(i + 1, errors.size)
+                                )
+                            },
+                            { throwable -> Log.e(TAG, "Unable to process", throwable) }
+                        )
+                )
+                // this will be called on the remaining errors by handleFeedNotAvailable()
+                return@handleItemsErrors
             }
         }
+
+        if (errors.isNotEmpty()) {
+            // if no error was a ContentNotAvailableException, show a general error snackbar
+            ErrorUtil.showSnackbar(this, ErrorInfo(errors, UserAction.REQUESTED_FEED, ""))
+        }
     }
 
     private fun handleFeedNotAvailable(
@@ -579,7 +588,7 @@ class FeedFragment : BaseStateFragment<FeedState>() {
         // state until the user scrolls them out of the visible area which causes a update/bind-call
         groupAdapter.notifyItemRangeChanged(
             0,
-            MathUtils.clamp(highlightCount, lastNewItemsCount, groupAdapter.itemCount)
+            highlightCount.coerceIn(lastNewItemsCount, groupAdapter.itemCount)
         )
 
         if (highlightCount > 0) {
@@ -598,9 +607,13 @@ class FeedFragment : BaseStateFragment<FeedState>() {
                 execOnEnd = {
                     // Disabled animations would result in immediately hiding the button
                     // after it showed up
-                    if (DeviceUtils.hasAnimationsAnimatorDurationEnabled(context)) {
-                        // Hide the new items-"popup" after 10s
-                        hideNewItemsLoaded(true, 10000)
+                    // Context can be null in some cases, so we have to make sure it is not null in
+                    // order to avoid a NullPointerException
+                    context?.let {
+                        if (DeviceUtils.hasAnimationsAnimatorDurationEnabled(it)) {
+                            // Hide the new items button after 10s
+                            hideNewItemsLoaded(true, 10000)
+                        }
                     }
                 }
             )

app/src/main/java/org/schabi/newpipe/local/feed/FeedState.kt

@@ -13,9 +13,9 @@ sealed class FeedState {
 
     data class LoadedState(
         val items: List<StreamItem>,
-        val oldestUpdate: OffsetDateTime? = null,
+        val oldestUpdate: OffsetDateTime?,
         val notLoadedCount: Long,
-        val itemsErrors: List<Throwable> = emptyList()
+        val itemsErrors: List<Throwable>
     ) : FeedState()
 
     data class ErrorState(

app/src/main/java/org/schabi/newpipe/local/feed/FeedViewModel.kt

@@ -86,7 +86,7 @@ class FeedViewModel(
         .subscribe { (event, listFromDB, notLoadedCount, oldestUpdate) ->
             mutableStateLiveData.postValue(
                 when (event) {
-                    is IdleEvent -> FeedState.LoadedState(listFromDB.map { e -> StreamItem(e) }, oldestUpdate, notLoadedCount)
+                    is IdleEvent -> FeedState.LoadedState(listFromDB.map { e -> StreamItem(e) }, oldestUpdate, notLoadedCount, listOf())
                     is ProgressEvent -> FeedState.ProgressState(event.currentProgress, event.maxProgress, event.progressMessage)
                     is SuccessResultEvent -> FeedState.LoadedState(listFromDB.map { e -> StreamItem(e) }, oldestUpdate, notLoadedCount, event.itemsErrors)
                     is ErrorResultEvent -> FeedState.ErrorState(event.error)

app/src/main/java/org/schabi/newpipe/local/feed/item/StreamItem.kt

@@ -18,8 +18,8 @@ import org.schabi.newpipe.extractor.stream.StreamType.POST_LIVE_AUDIO_STREAM
 import org.schabi.newpipe.extractor.stream.StreamType.POST_LIVE_STREAM
 import org.schabi.newpipe.extractor.stream.StreamType.VIDEO_STREAM
 import org.schabi.newpipe.util.Localization
-import org.schabi.newpipe.util.PicassoHelper
 import org.schabi.newpipe.util.StreamTypeUtil
+import org.schabi.newpipe.util.image.PicassoHelper
 import java.util.concurrent.TimeUnit
 import java.util.function.Consumer
 

app/src/main/java/org/schabi/newpipe/local/feed/notifications/NotificationHelper.kt

@@ -1,6 +1,8 @@
 package org.schabi.newpipe.local.feed.notifications
 
+import android.app.Notification
 import android.app.NotificationManager
+import android.app.PendingIntent
 import android.content.Context
 import android.content.Intent
 import android.graphics.Bitmap
@@ -12,46 +14,41 @@ import androidx.core.app.NotificationCompat
 import androidx.core.app.NotificationManagerCompat
 import androidx.core.app.PendingIntentCompat
 import androidx.core.content.ContextCompat
+import androidx.core.content.getSystemService
 import androidx.preference.PreferenceManager
 import com.squareup.picasso.Picasso
 import com.squareup.picasso.Target
 import org.schabi.newpipe.R
 import org.schabi.newpipe.extractor.stream.StreamInfoItem
 import org.schabi.newpipe.local.feed.service.FeedUpdateInfo
-import org.schabi.newpipe.util.Localization
 import org.schabi.newpipe.util.NavigationHelper
-import org.schabi.newpipe.util.PicassoHelper
+import org.schabi.newpipe.util.image.PicassoHelper
 
 /**
  * Helper for everything related to show notifications about new streams to the user.
  */
 class NotificationHelper(val context: Context) {
-
-    private val manager = context.getSystemService(
-        Context.NOTIFICATION_SERVICE
-    ) as NotificationManager
-
+    private val manager = NotificationManagerCompat.from(context)
     private val iconLoadingTargets = ArrayList<Target>()
 
     /**
-     * Show a notification about new streams from a single channel.
-     * Opening the notification will open the corresponding channel page.
+     * Show notifications for new streams from a single channel. The individual notifications are
+     * expandable on Android 7.0 and later.
+     *
+     * Opening the summary notification will open the corresponding channel page. Opening the
+     * individual notifications will open the corresponding video.
      */
-    fun displayNewStreamsNotification(data: FeedUpdateInfo) {
-        val newStreams: List<StreamInfoItem> = data.newStreams
+    fun displayNewStreamsNotifications(data: FeedUpdateInfo) {
+        val newStreams = data.newStreams
         val summary = context.resources.getQuantityString(
             R.plurals.new_streams, newStreams.size, newStreams.size
         )
-        val builder = NotificationCompat.Builder(
+        val summaryBuilder = NotificationCompat.Builder(
             context,
             context.getString(R.string.streams_notification_channel_id)
         )
-            .setContentTitle(Localization.concatenateStrings(data.name, summary))
-            .setContentText(
-                data.listInfo.relatedItems.joinToString(
-                    context.getString(R.string.enumeration_comma)
-                ) { x -> x.name }
-            )
+            .setContentTitle(data.name)
+            .setContentText(summary)
             .setNumber(newStreams.size)
             .setBadgeIconType(NotificationCompat.BADGE_ICON_LARGE)
             .setPriority(NotificationCompat.PRIORITY_DEFAULT)
@@ -60,21 +57,23 @@ class NotificationHelper(val context: Context) {
             .setColorized(true)
             .setAutoCancel(true)
             .setCategory(NotificationCompat.CATEGORY_SOCIAL)
+            .setGroupSummary(true)
+            .setGroup(data.url)
+            .setGroupAlertBehavior(NotificationCompat.GROUP_ALERT_SUMMARY)
 
-        // Build style
+        // Build a summary notification for Android versions < 7.0
         val style = NotificationCompat.InboxStyle()
+            .setBigContentTitle(data.name)
         newStreams.forEach { style.addLine(it.name) }
-        style.setSummaryText(summary)
-        style.setBigContentTitle(data.name)
-        builder.setStyle(style)
+        summaryBuilder.setStyle(style)
 
-        // open the channel page when clicking on the notification
-        builder.setContentIntent(
+        // open the channel page when clicking on the summary notification
+        summaryBuilder.setContentIntent(
             PendingIntentCompat.getActivity(
                 context,
                 data.pseudoId,
                 NavigationHelper
-                    .getChannelIntent(context, data.listInfo.serviceId, data.listInfo.url)
+                    .getChannelIntent(context, data.serviceId, data.url)
                     .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK),
                 0,
                 false
@@ -84,13 +83,23 @@ class NotificationHelper(val context: Context) {
         // a Target is like a listener for image loading events
         val target = object : Target {
             override fun onBitmapLoaded(bitmap: Bitmap, from: Picasso.LoadedFrom) {
-                builder.setLargeIcon(bitmap) // set only if there is actually one
-                manager.notify(data.pseudoId, builder.build())
+                // set channel icon only if there is actually one (for Android versions < 7.0)
+                summaryBuilder.setLargeIcon(bitmap)
+
+                // Show individual stream notifications, set channel icon only if there is actually
+                // one
+                showStreamNotifications(newStreams, data.serviceId, bitmap)
+                // Show summary notification
+                manager.notify(data.pseudoId, summaryBuilder.build())
+
                 iconLoadingTargets.remove(this) // allow it to be garbage-collected
             }
 
             override fun onBitmapFailed(e: Exception, errorDrawable: Drawable) {
-                manager.notify(data.pseudoId, builder.build())
+                // Show individual stream notifications
+                showStreamNotifications(newStreams, data.serviceId, null)
+                // Show summary notification
+                manager.notify(data.pseudoId, summaryBuilder.build())
                 iconLoadingTargets.remove(this) // allow it to be garbage-collected
             }
 
@@ -106,6 +115,49 @@ class NotificationHelper(val context: Context) {
         PicassoHelper.loadNotificationIcon(data.avatarUrl).into(target)
     }
 
+    private fun showStreamNotifications(
+        newStreams: List<StreamInfoItem>,
+        serviceId: Int,
+        channelIcon: Bitmap?
+    ) {
+        for (stream in newStreams) {
+            val notification = createStreamNotification(stream, serviceId, channelIcon)
+            manager.notify(stream.url.hashCode(), notification)
+        }
+    }
+
+    private fun createStreamNotification(
+        item: StreamInfoItem,
+        serviceId: Int,
+        channelIcon: Bitmap?
+    ): Notification {
+        return NotificationCompat.Builder(
+            context,
+            context.getString(R.string.streams_notification_channel_id)
+        )
+            .setSmallIcon(R.drawable.ic_newpipe_triangle_white)
+            .setLargeIcon(channelIcon)
+            .setContentTitle(item.name)
+            .setContentText(item.uploaderName)
+            .setGroup(item.uploaderUrl)
+            .setColor(ContextCompat.getColor(context, R.color.ic_launcher_background))
+            .setColorized(true)
+            .setAutoCancel(true)
+            .setCategory(NotificationCompat.CATEGORY_SOCIAL)
+            .setContentIntent(
+                // Open the stream link in the player when clicking on the notification.
+                PendingIntentCompat.getActivity(
+                    context,
+                    item.url.hashCode(),
+                    NavigationHelper.getStreamIntent(context, serviceId, item.url, item.name),
+                    PendingIntent.FLAG_UPDATE_CURRENT,
+                    false
+                )
+            )
+            .setSilent(true) // Avoid creating noise for individual stream notifications.
+            .build()
+    }
+
     companion object {
         /**
          * Check whether notifications are enabled on the device.
@@ -124,9 +176,7 @@ class NotificationHelper(val context: Context) {
         fun areNotificationsEnabledOnDevice(context: Context): Boolean {
             return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
                 val channelId = context.getString(R.string.streams_notification_channel_id)
-                val manager = context.getSystemService(
-                    Context.NOTIFICATION_SERVICE
-                ) as NotificationManager
+                val manager = context.getSystemService<NotificationManager>()!!
                 val enabled = manager.areNotificationsEnabled()
                 val channel = manager.getNotificationChannel(channelId)
                 val importance = channel?.importance

app/src/main/java/org/schabi/newpipe/local/feed/notifications/NotificationWorker.kt

@@ -55,7 +55,7 @@ class NotificationWorker(
             .map { feedUpdateInfoList ->
                 // display notifications for each feedUpdateInfo (i.e. channel)
                 feedUpdateInfoList.forEach { feedUpdateInfo ->
-                    notificationHelper.displayNewStreamsNotification(feedUpdateInfo)
+                    notificationHelper.displayNewStreamsNotifications(feedUpdateInfo)
                 }
                 return@map Result.success()
             }
@@ -137,7 +137,7 @@ class NotificationWorker(
                 .enqueueUniquePeriodicWork(
                     WORK_TAG,
                     if (force) {
-                        ExistingPeriodicWorkPolicy.REPLACE
+                        ExistingPeriodicWorkPolicy.CANCEL_AND_REENQUEUE
                     } else {
                         ExistingPeriodicWorkPolicy.KEEP
                     },

app/src/main/java/org/schabi/newpipe/local/feed/service/FeedEventManager.kt

@@ -26,7 +26,7 @@ object FeedEventManager {
     }
 
     sealed class Event {
-        object IdleEvent : Event()
+        data object IdleEvent : Event()
         data class ProgressEvent(val currentProgress: Int = -1, val maxProgress: Int = -1, @StringRes val progressMessage: Int = 0) : Event() {
             constructor(@StringRes progressMessage: Int) : this(-1, -1, progressMessage)
         }

app/src/main/java/org/schabi/newpipe/local/feed/service/FeedLoadManager.kt

@@ -1,6 +1,7 @@
 package org.schabi.newpipe.local.feed.service
 
 import android.content.Context
+import android.content.SharedPreferences
 import androidx.preference.PreferenceManager
 import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers
 import io.reactivex.rxjava3.core.Completable
@@ -13,11 +14,17 @@ import io.reactivex.rxjava3.schedulers.Schedulers
 import org.schabi.newpipe.R
 import org.schabi.newpipe.database.feed.model.FeedGroupEntity
 import org.schabi.newpipe.database.subscription.NotificationMode
-import org.schabi.newpipe.extractor.ListInfo
+import org.schabi.newpipe.database.subscription.SubscriptionEntity
+import org.schabi.newpipe.extractor.Info
+import org.schabi.newpipe.extractor.NewPipe
+import org.schabi.newpipe.extractor.feed.FeedInfo
 import org.schabi.newpipe.extractor.stream.StreamInfoItem
 import org.schabi.newpipe.local.feed.FeedDatabaseManager
 import org.schabi.newpipe.local.subscription.SubscriptionManager
-import org.schabi.newpipe.util.ExtractorHelper
+import org.schabi.newpipe.util.ChannelTabHelper
+import org.schabi.newpipe.util.ExtractorHelper.getChannelInfo
+import org.schabi.newpipe.util.ExtractorHelper.getChannelTab
+import org.schabi.newpipe.util.ExtractorHelper.getMoreChannelTabItems
 import java.time.OffsetDateTime
 import java.time.ZoneOffset
 import java.util.concurrent.atomic.AtomicBoolean
@@ -75,7 +82,9 @@ class FeedLoadManager(private val context: Context) {
          * subscriptions which have not been updated within the feed updated threshold
          */
         val outdatedSubscriptions = when (groupId) {
-            FeedGroupEntity.GROUP_ALL_ID -> feedDatabaseManager.outdatedSubscriptions(outdatedThreshold)
+            FeedGroupEntity.GROUP_ALL_ID -> feedDatabaseManager.outdatedSubscriptions(
+                outdatedThreshold
+            )
             GROUP_NOTIFICATION_ENABLED -> feedDatabaseManager.outdatedSubscriptionsWithNotificationMode(
                 outdatedThreshold, NotificationMode.ENABLED
             )
@@ -101,52 +110,7 @@ class FeedLoadManager(private val context: Context) {
             .runOn(Schedulers.io(), PARALLEL_EXTRACTIONS * 2)
             .filter { !cancelSignal.get() }
             .map { subscriptionEntity ->
-                var error: Throwable? = null
-                try {
-                    // check for and load new streams
-                    // either by using the dedicated feed method or by getting the channel info
-                    val listInfo = if (useFeedExtractor) {
-                        ExtractorHelper
-                            .getFeedInfoFallbackToChannelInfo(
-                                subscriptionEntity.serviceId,
-                                subscriptionEntity.url
-                            )
-                            .onErrorReturn {
-                                error = it // store error, otherwise wrapped into RuntimeException
-                                throw it
-                            }
-                            .blockingGet()
-                    } else {
-                        ExtractorHelper
-                            .getChannelInfo(
-                                subscriptionEntity.serviceId,
-                                subscriptionEntity.url,
-                                true
-                            )
-                            .onErrorReturn {
-                                error = it // store error, otherwise wrapped into RuntimeException
-                                throw it
-                            }
-                            .blockingGet()
-                    } as ListInfo<StreamInfoItem>
-
-                    return@map Notification.createOnNext(
-                        FeedUpdateInfo(
-                            subscriptionEntity,
-                            listInfo
-                        )
-                    )
-                } catch (e: Throwable) {
-                    if (error == null) {
-                        // do this to prevent blockingGet() from wrapping into RuntimeException
-                        error = e
-                    }
-
-                    val request = "${subscriptionEntity.serviceId}:${subscriptionEntity.url}"
-                    val wrapper =
-                        FeedLoadService.RequestException(subscriptionEntity.uid, request, error!!)
-                    return@map Notification.createOnError<FeedUpdateInfo>(wrapper)
-                }
+                loadStreams(subscriptionEntity, useFeedExtractor, defaultSharedPreferences)
             }
             .sequential()
             .observeOn(AndroidSchedulers.mainThread())
@@ -164,7 +128,112 @@ class FeedLoadManager(private val context: Context) {
     }
 
     private fun broadcastProgress() {
-        FeedEventManager.postEvent(FeedEventManager.Event.ProgressEvent(currentProgress.get(), maxProgress.get()))
+        FeedEventManager.postEvent(
+            FeedEventManager.Event.ProgressEvent(
+                currentProgress.get(),
+                maxProgress.get()
+            )
+        )
+    }
+
+    private fun loadStreams(
+        subscriptionEntity: SubscriptionEntity,
+        useFeedExtractor: Boolean,
+        defaultSharedPreferences: SharedPreferences
+    ): Notification<FeedUpdateInfo> {
+        var error: Throwable? = null
+        val storeOriginalErrorAndRethrow = { e: Throwable ->
+            // keep original to prevent blockingGet() from wrapping it into RuntimeException
+            error = e
+            throw e
+        }
+
+        try {
+            // check for and load new streams
+            // either by using the dedicated feed method or by getting the channel info
+            var originalInfo: Info? = null
+            var streams: List<StreamInfoItem>? = null
+            val errors = ArrayList<Throwable>()
+
+            if (useFeedExtractor) {
+                NewPipe.getService(subscriptionEntity.serviceId)
+                    .getFeedExtractor(subscriptionEntity.url)
+                    ?.also { feedExtractor ->
+                        // the user wants to use a feed extractor and there is one, use it
+                        val feedInfo = FeedInfo.getInfo(feedExtractor)
+                        errors.addAll(feedInfo.errors)
+                        originalInfo = feedInfo
+                        streams = feedInfo.relatedItems
+                    }
+            }
+
+            if (originalInfo == null) {
+                // use the normal channel tabs extractor if either the user wants it, or
+                // the current service does not have a dedicated feed extractor
+
+                val channelInfo = getChannelInfo(
+                    subscriptionEntity.serviceId,
+                    subscriptionEntity.url, true
+                )
+                    .onErrorReturn(storeOriginalErrorAndRethrow)
+                    .blockingGet()
+                errors.addAll(channelInfo.errors)
+                originalInfo = channelInfo
+
+                streams = channelInfo.tabs
+                    .filter { tab ->
+                        ChannelTabHelper.fetchFeedChannelTab(
+                            context,
+                            defaultSharedPreferences,
+                            tab
+                        )
+                    }
+                    .map {
+                        Pair(
+                            getChannelTab(subscriptionEntity.serviceId, it, true)
+                                .onErrorReturn(storeOriginalErrorAndRethrow)
+                                .blockingGet(),
+                            it
+                        )
+                    }
+                    .flatMap { (channelTabInfo, linkHandler) ->
+                        errors.addAll(channelTabInfo.errors)
+                        if (channelTabInfo.relatedItems.isEmpty() &&
+                            channelTabInfo.nextPage != null
+                        ) {
+                            val infoItemsPage = getMoreChannelTabItems(
+                                subscriptionEntity.serviceId,
+                                linkHandler, channelTabInfo.nextPage
+                            )
+                                .blockingGet()
+
+                            errors.addAll(infoItemsPage.errors)
+                            return@flatMap infoItemsPage.items
+                        } else {
+                            return@flatMap channelTabInfo.relatedItems
+                        }
+                    }
+                    .filterIsInstance<StreamInfoItem>()
+            }
+
+            return Notification.createOnNext(
+                FeedUpdateInfo(
+                    subscriptionEntity,
+                    originalInfo!!,
+                    streams!!,
+                    errors,
+                )
+            )
+        } catch (e: Throwable) {
+            val request = "${subscriptionEntity.serviceId}:${subscriptionEntity.url}"
+            val wrapper = FeedLoadService.RequestException(
+                subscriptionEntity.uid,
+                request,
+                // do this to prevent blockingGet() from wrapping into RuntimeException
+                error ?: e
+            )
+            return Notification.createOnError(wrapper)
+        }
     }
 
     /**
@@ -203,24 +272,24 @@ class FeedLoadManager(private val context: Context) {
                 for (notification in list) {
                     when {
                         notification.isOnNext -> {
-                            val subscriptionId = notification.value!!.uid
-                            val info = notification.value!!.listInfo
+                            val info = notification.value!!
 
-                            notification.value!!.newStreams = filterNewStreams(
-                                notification.value!!.listInfo.relatedItems
-                            )
+                            notification.value!!.newStreams = filterNewStreams(info.streams)
 
-                            feedDatabaseManager.upsertAll(subscriptionId, info.relatedItems)
-                            subscriptionManager.updateFromInfo(subscriptionId, info)
+                            feedDatabaseManager.upsertAll(info.uid, info.streams)
+                            subscriptionManager.updateFromInfo(info)
 
                             if (info.errors.isNotEmpty()) {
                                 feedResultsHolder.addErrors(
-                                    FeedLoadService.RequestException.wrapList(
-                                        subscriptionId,
-                                        info
-                                    )
+                                    info.errors.map {
+                                        FeedLoadService.RequestException(
+                                            info.uid,
+                                            "${info.serviceId}:${info.url}",
+                                            it
+                                        )
+                                    }
                                 )
-                                feedDatabaseManager.markAsOutdated(subscriptionId)
+                                feedDatabaseManager.markAsOutdated(info.uid)
                             }
                         }
                         notification.isOnError -> {

app/src/main/java/org/schabi/newpipe/local/feed/service/FeedLoadService.kt

@@ -39,8 +39,6 @@ import org.schabi.newpipe.App
 import org.schabi.newpipe.MainActivity.DEBUG
 import org.schabi.newpipe.R
 import org.schabi.newpipe.database.feed.model.FeedGroupEntity
-import org.schabi.newpipe.extractor.ListInfo
-import org.schabi.newpipe.extractor.stream.StreamInfoItem
 import org.schabi.newpipe.local.feed.service.FeedEventManager.Event.ErrorResultEvent
 import org.schabi.newpipe.local.feed.service.FeedEventManager.postEvent
 import java.util.concurrent.TimeUnit
@@ -95,13 +93,7 @@ class FeedLoadService : Service() {
             .doOnSubscribe {
                 startForeground(NOTIFICATION_ID, notificationBuilder.build())
             }
-            .subscribe { _, error ->
-                // There seems to be a bug in the kotlin plugin as it tells you when
-                // building that this can't be null:
-                // "Condition 'error != null' is always 'true'"
-                // However it can indeed be null
-                // The suppression may be removed in further versions
-                @Suppress("SENSELESS_COMPARISON")
+            .subscribe { _, error: Throwable? -> // explicitly mark error as nullable
                 if (error != null) {
                     Log.e(TAG, "Error while storing result", error)
                     handleError(error)
@@ -132,17 +124,7 @@ class FeedLoadService : Service() {
     // Loading & Handling
     // /////////////////////////////////////////////////////////////////////////
 
-    class RequestException(val subscriptionId: Long, message: String, cause: Throwable) : Exception(message, cause) {
-        companion object {
-            fun wrapList(subscriptionId: Long, info: ListInfo<StreamInfoItem>): List<Throwable> {
-                val toReturn = ArrayList<Throwable>(info.errors.size)
-                info.errors.mapTo(toReturn) {
-                    RequestException(subscriptionId, info.serviceId.toString() + ":" + info.url, it)
-                }
-                return toReturn
-            }
-        }
-    }
+    class RequestException(val subscriptionId: Long, message: String, cause: Throwable) : Exception(message, cause)
 
     // /////////////////////////////////////////////////////////////////////////
     // Notification

app/src/main/java/org/schabi/newpipe/local/feed/service/FeedUpdateInfo.kt

@@ -2,33 +2,58 @@ package org.schabi.newpipe.local.feed.service
 
 import org.schabi.newpipe.database.subscription.NotificationMode
 import org.schabi.newpipe.database.subscription.SubscriptionEntity
-import org.schabi.newpipe.extractor.ListInfo
+import org.schabi.newpipe.extractor.Info
+import org.schabi.newpipe.extractor.channel.ChannelInfo
 import org.schabi.newpipe.extractor.stream.StreamInfoItem
+import org.schabi.newpipe.util.image.ImageStrategy
 
+/**
+ * Instances of this class might stay around in memory for some time while fetching the feed,
+ * because of [FeedLoadManager.BUFFER_COUNT_BEFORE_INSERT]. Therefore this class should contain
+ * as little data as possible to avoid out of memory errors. In particular, avoid storing whole
+ * [ChannelInfo] objects, as they might contain raw JSON info in ready channel tabs link handlers.
+ */
 data class FeedUpdateInfo(
     val uid: Long,
     @NotificationMode
     val notificationMode: Int,
     val name: String,
-    val avatarUrl: String,
-    val listInfo: ListInfo<StreamInfoItem>,
+    val avatarUrl: String?,
+    val url: String,
+    val serviceId: Int,
+    // description and subscriberCount are null if the constructor info is from the fast feed method
+    val description: String?,
+    val subscriberCount: Long?,
+    val streams: List<StreamInfoItem>,
+    val errors: List<Throwable>,
 ) {
     constructor(
         subscription: SubscriptionEntity,
-        listInfo: ListInfo<StreamInfoItem>,
+        info: Info,
+        streams: List<StreamInfoItem>,
+        errors: List<Throwable>,
     ) : this(
         uid = subscription.uid,
         notificationMode = subscription.notificationMode,
-        name = subscription.name,
-        avatarUrl = subscription.avatarUrl,
-        listInfo = listInfo,
+        name = info.name,
+        avatarUrl = (info as? ChannelInfo)?.avatars?.let {
+            // if the newly fetched info is not from fast feed, then it contains updated avatars
+            ImageStrategy.imageListToDbUrl(it)
+        } ?: subscription.avatarUrl,
+        url = info.url,
+        serviceId = info.serviceId,
+        // there is no description and subscriberCount in the fast feed
+        description = (info as? ChannelInfo)?.description,
+        subscriberCount = (info as? ChannelInfo)?.subscriberCount,
+        streams = streams,
+        errors = errors,
     )
 
     /**
      * Integer id, can be used as notification id, etc.
      */
     val pseudoId: Int
-        get() = listInfo.url.hashCode()
+        get() = url.hashCode()
 
     lateinit var newStreams: List<StreamInfoItem>
 }

app/src/main/java/org/schabi/newpipe/local/history/StatisticsPlaylistFragment.java

@@ -28,14 +28,16 @@ import org.schabi.newpipe.databinding.StatisticPlaylistControlBinding;
 import org.schabi.newpipe.error.ErrorInfo;
 import org.schabi.newpipe.error.UserAction;
 import org.schabi.newpipe.extractor.stream.StreamInfoItem;
+import org.schabi.newpipe.fragments.list.playlist.PlaylistControlViewHolder;
 import org.schabi.newpipe.info_list.dialog.InfoItemDialog;
+import org.schabi.newpipe.info_list.dialog.StreamDialogDefaultEntry;
 import org.schabi.newpipe.local.BaseLocalListFragment;
 import org.schabi.newpipe.player.playqueue.PlayQueue;
 import org.schabi.newpipe.player.playqueue.SinglePlayQueue;
 import org.schabi.newpipe.settings.HistorySettingsFragment;
 import org.schabi.newpipe.util.NavigationHelper;
 import org.schabi.newpipe.util.OnClickGesture;
-import org.schabi.newpipe.info_list.dialog.StreamDialogDefaultEntry;
+import org.schabi.newpipe.util.PlayButtonHelper;
 
 import java.util.ArrayList;
 import java.util.Collections;
@@ -49,7 +51,8 @@ import io.reactivex.rxjava3.disposables.CompositeDisposable;
 import io.reactivex.rxjava3.disposables.Disposable;
 
 public class StatisticsPlaylistFragment
-        extends BaseLocalListFragment<List<StreamStatisticsEntry>, Void> {
+        extends BaseLocalListFragment<List<StreamStatisticsEntry>, Void>
+        implements PlaylistControlViewHolder {
     private final CompositeDisposable disposables = new CompositeDisposable();
     @State
     Parcelable itemsListState;
@@ -195,14 +198,9 @@ public class StatisticsPlaylistFragment
         if (itemListAdapter != null) {
             itemListAdapter.unsetSelectedListener();
         }
-        if (playlistControlBinding != null) {
-            playlistControlBinding.playlistCtrlPlayBgButton.setOnClickListener(null);
-            playlistControlBinding.playlistCtrlPlayAllButton.setOnClickListener(null);
-            playlistControlBinding.playlistCtrlPlayPopupButton.setOnClickListener(null);
 
-            headerBinding = null;
-            playlistControlBinding = null;
-        }
+        headerBinding = null;
+        playlistControlBinding = null;
 
         if (databaseSubscription != null) {
             databaseSubscription.cancel();
@@ -276,12 +274,8 @@ public class StatisticsPlaylistFragment
             itemsListState = null;
         }
 
-        playlistControlBinding.playlistCtrlPlayAllButton.setOnClickListener(view ->
-                NavigationHelper.playOnMainPlayer(activity, getPlayQueue()));
-        playlistControlBinding.playlistCtrlPlayPopupButton.setOnClickListener(view ->
-                NavigationHelper.playOnPopupPlayer(activity, getPlayQueue(), false));
-        playlistControlBinding.playlistCtrlPlayBgButton.setOnClickListener(view ->
-                NavigationHelper.playOnBackgroundPlayer(activity, getPlayQueue(), false));
+        PlayButtonHelper.initPlaylistControlClickListener(activity, playlistControlBinding, this);
+
         headerBinding.sortButton.setOnClickListener(view -> toggleSortMode());
 
         hideLoading();
@@ -374,7 +368,7 @@ public class StatisticsPlaylistFragment
         }
     }
 
-    private PlayQueue getPlayQueue() {
+    public PlayQueue getPlayQueue() {
         return getPlayQueue(0);
     }
 

app/src/main/java/org/schabi/newpipe/local/holder/LocalBookmarkPlaylistItemHolder.java

@@ -0,0 +1,54 @@
+package org.schabi.newpipe.local.holder;
+
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.ViewGroup;
+
+import org.schabi.newpipe.R;
+import org.schabi.newpipe.database.LocalItem;
+import org.schabi.newpipe.database.playlist.PlaylistMetadataEntry;
+import org.schabi.newpipe.local.LocalItemBuilder;
+import org.schabi.newpipe.local.history.HistoryRecordManager;
+
+import java.time.format.DateTimeFormatter;
+
+public class LocalBookmarkPlaylistItemHolder extends LocalPlaylistItemHolder {
+    private final View itemHandleView;
+
+    public LocalBookmarkPlaylistItemHolder(final LocalItemBuilder infoItemBuilder,
+                                           final ViewGroup parent) {
+        this(infoItemBuilder, R.layout.list_playlist_bookmark_item, parent);
+    }
+
+    LocalBookmarkPlaylistItemHolder(final LocalItemBuilder infoItemBuilder, final int layoutId,
+                                    final ViewGroup parent) {
+        super(infoItemBuilder, layoutId, parent);
+        itemHandleView = itemView.findViewById(R.id.itemHandle);
+    }
+
+    @Override
+    public void updateFromItem(final LocalItem localItem,
+                               final HistoryRecordManager historyRecordManager,
+                               final DateTimeFormatter dateTimeFormatter) {
+        if (!(localItem instanceof PlaylistMetadataEntry)) {
+            return;
+        }
+        final PlaylistMetadataEntry item = (PlaylistMetadataEntry) localItem;
+
+        itemHandleView.setOnTouchListener(getOnTouchListener(item));
+
+        super.updateFromItem(localItem, historyRecordManager, dateTimeFormatter);
+    }
+
+    private View.OnTouchListener getOnTouchListener(final PlaylistMetadataEntry item) {
+        return (view, motionEvent) -> {
+            view.performClick();
+            if (itemBuilder != null && itemBuilder.getOnItemSelectedListener() != null
+                    && motionEvent.getActionMasked() == MotionEvent.ACTION_DOWN) {
+                itemBuilder.getOnItemSelectedListener().drag(item,
+                        LocalBookmarkPlaylistItemHolder.this);
+            }
+            return false;
+        };
+    }
+}

app/src/main/java/org/schabi/newpipe/local/holder/LocalPlaylistItemHolder.java

@@ -8,7 +8,7 @@ import org.schabi.newpipe.database.playlist.PlaylistDuplicatesEntry;
 import org.schabi.newpipe.database.playlist.PlaylistMetadataEntry;
 import org.schabi.newpipe.local.LocalItemBuilder;
 import org.schabi.newpipe.local.history.HistoryRecordManager;
-import org.schabi.newpipe.util.PicassoHelper;
+import org.schabi.newpipe.util.image.PicassoHelper;
 import org.schabi.newpipe.util.Localization;
 
 import java.time.format.DateTimeFormatter;

app/src/main/java/org/schabi/newpipe/local/holder/LocalPlaylistStreamItemHolder.java

@@ -16,7 +16,7 @@ import org.schabi.newpipe.local.LocalItemBuilder;
 import org.schabi.newpipe.local.history.HistoryRecordManager;
 import org.schabi.newpipe.util.DependentPreferenceHelper;
 import org.schabi.newpipe.util.Localization;
-import org.schabi.newpipe.util.PicassoHelper;
+import org.schabi.newpipe.util.image.PicassoHelper;
 import org.schabi.newpipe.util.ServiceHelper;
 import org.schabi.newpipe.views.AnimatedProgressBar;
 

app/src/main/java/org/schabi/newpipe/local/holder/LocalStatisticStreamItemHolder.java

@@ -16,7 +16,7 @@ import org.schabi.newpipe.local.LocalItemBuilder;
 import org.schabi.newpipe.local.history.HistoryRecordManager;
 import org.schabi.newpipe.util.DependentPreferenceHelper;
 import org.schabi.newpipe.util.Localization;
-import org.schabi.newpipe.util.PicassoHelper;
+import org.schabi.newpipe.util.image.PicassoHelper;
 import org.schabi.newpipe.util.ServiceHelper;
 import org.schabi.newpipe.views.AnimatedProgressBar;
 

app/src/main/java/org/schabi/newpipe/local/holder/RemoteBookmarkPlaylistItemHolder.java

@@ -0,0 +1,54 @@
+package org.schabi.newpipe.local.holder;
+
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.ViewGroup;
+
+import org.schabi.newpipe.R;
+import org.schabi.newpipe.database.LocalItem;
+import org.schabi.newpipe.database.playlist.model.PlaylistRemoteEntity;
+import org.schabi.newpipe.local.LocalItemBuilder;
+import org.schabi.newpipe.local.history.HistoryRecordManager;
+
+import java.time.format.DateTimeFormatter;
+
+public class RemoteBookmarkPlaylistItemHolder extends RemotePlaylistItemHolder {
+    private final View itemHandleView;
+
+    public RemoteBookmarkPlaylistItemHolder(final LocalItemBuilder infoItemBuilder,
+                                            final ViewGroup parent) {
+        this(infoItemBuilder, R.layout.list_playlist_bookmark_item, parent);
+    }
+
+    RemoteBookmarkPlaylistItemHolder(final LocalItemBuilder infoItemBuilder, final int layoutId,
+                                     final ViewGroup parent) {
+        super(infoItemBuilder, layoutId, parent);
+        itemHandleView = itemView.findViewById(R.id.itemHandle);
+    }
+
+    @Override
+    public void updateFromItem(final LocalItem localItem,
+                               final HistoryRecordManager historyRecordManager,
+                               final DateTimeFormatter dateTimeFormatter) {
+        if (!(localItem instanceof PlaylistRemoteEntity)) {
+            return;
+        }
+        final PlaylistRemoteEntity item = (PlaylistRemoteEntity) localItem;
+
+        itemHandleView.setOnTouchListener(getOnTouchListener(item));
+
+        super.updateFromItem(localItem, historyRecordManager, dateTimeFormatter);
+    }
+
+    private View.OnTouchListener getOnTouchListener(final PlaylistRemoteEntity item) {
+        return (view, motionEvent) -> {
+            view.performClick();
+            if (itemBuilder != null && itemBuilder.getOnItemSelectedListener() != null
+                    && motionEvent.getActionMasked() == MotionEvent.ACTION_DOWN) {
+                itemBuilder.getOnItemSelectedListener().drag(item,
+                        RemoteBookmarkPlaylistItemHolder.this);
+            }
+            return false;
+        };
+    }
+}