PlayerUIList: make UI list private

The `R.id` link from the comment cannot be resolved, so let’s not link
it for now.

We are using some exoplayer2 resources, let’s silence the warning.

.github/workflows/image-minimizer.js

@@ -33,11 +33,11 @@ module.exports = async ({github, context}) => {
 
     // Regex for finding images (simple variant) ![ALT_TEXT](https://*.githubusercontent.com/<number>/<variousHexStringsAnd->.<fileExtension>)
     const REGEX_USER_CONTENT_IMAGE_LOOKUP = /\!\[([^\]]*)\]\((https:\/\/[-a-z0-9]+\.githubusercontent\.com\/\d+\/[-0-9a-f]{32,512}\.(jpg|gif|png))\)/gm;
-    const REGEX_ASSETS_IMAGE_LOCKUP = /\!\[([^\]]*)\]\((https:\/\/github\.com\/[-\w\d]+\/[-\w\d]+\/assets\/\d+\/[\-0-9a-f]{32,512})\)/gm;
+    const REGEX_ASSETS_IMAGE_LOOKUP = /\!\[([^\]]*)\]\((https:\/\/github\.com\/(?:user-attachments\/assets|[-\w\d]+\/[-\w\d]+\/assets\/\d+)\/[\-0-9a-f]{32,512})\)/gm;
 
     // Check if we found something
     let foundSimpleImages = REGEX_USER_CONTENT_IMAGE_LOOKUP.test(initialBody)
-        || REGEX_ASSETS_IMAGE_LOCKUP.test(initialBody);
+        || REGEX_ASSETS_IMAGE_LOOKUP.test(initialBody);
     if (!foundSimpleImages) {
         console.log('Found no simple images to process');
         return;
@@ -52,7 +52,7 @@ module.exports = async ({github, context}) => {
 
     // Try to find and replace the images with minimized ones
     let newBody = await replaceAsync(initialBody, REGEX_USER_CONTENT_IMAGE_LOOKUP, minimizeAsync);
-    newBody = await replaceAsync(newBody, REGEX_ASSETS_IMAGE_LOCKUP, minimizeAsync);
+    newBody = await replaceAsync(newBody, REGEX_ASSETS_IMAGE_LOOKUP, minimizeAsync);
     
     if (!wasMatchModified) {
         console.log('Nothing was modified. Skipping update');

.gitignore

@@ -10,6 +10,7 @@ captures/
 *.class
 app/debug/
 app/release/
+.kotlin/
 
 # vscode / eclipse files
 *.classpath

app/build.gradle

@@ -1,14 +1,18 @@
 import com.android.tools.profgen.ArtProfileKt
 import com.android.tools.profgen.ArtProfileSerializer
 import com.android.tools.profgen.DexFile
+import com.mikepenz.aboutlibraries.plugin.DuplicateMode
 
 plugins {
-    id "com.android.application"
-    id "kotlin-android"
-    id "kotlin-kapt"
-    id "kotlin-parcelize"
-    id "checkstyle"
-    id "org.sonarqube" version "4.0.0.2929"
+    alias libs.plugins.android.application
+    alias libs.plugins.kotlin.android
+    alias libs.plugins.kotlin.compose
+    alias libs.plugins.kotlin.kapt
+    alias libs.plugins.kotlin.parcelize
+    alias libs.plugins.checkstyle
+    alias libs.plugins.sonarqube
+    alias libs.plugins.hilt
+    alias libs.plugins.aboutlibraries
 }
 
 android {
@@ -97,8 +101,13 @@ android {
         androidTest.assets.srcDirs += files("$projectDir/schemas".toString())
     }
 
+    androidResources {
+        generateLocaleConfig = true
+    }
+
     buildFeatures {
         viewBinding true
+        compose true
         buildConfig true
     }
 
@@ -113,23 +122,6 @@ android {
     }
 }
 
-ext {
-    checkstyleVersion = '10.12.1'
-
-    androidxLifecycleVersion = '2.6.2'
-    androidxRoomVersion = '2.6.1'
-    androidxWorkVersion = '2.8.1'
-
-    stateSaverVersion = '1.4.1'
-    exoPlayerVersion = '2.18.7'
-    googleAutoServiceVersion = '1.1.1'
-    groupieVersion = '2.10.1'
-    markwonVersion = '4.6.2'
-
-    leakCanaryVersion = '2.12'
-    stethoVersion = '1.6.0'
-}
-
 configurations {
     checkstyle
     ktlint
@@ -139,7 +131,7 @@ checkstyle {
     getConfigDirectory().set(rootProject.file("checkstyle"))
     ignoreFailures false
     showViolations true
-    toolVersion = checkstyleVersion
+    toolVersion = libs.versions.checkstyle.get()
 }
 
 tasks.register('runCheckstyle', Checkstyle) {
@@ -181,11 +173,13 @@ tasks.register('formatKtlint', JavaExec) {
     jvmArgs("--add-opens", "java.base/java.lang=ALL-UNNAMED")
 }
 
+apply from: 'check-dependencies.gradle'
+
 afterEvaluate {
     if (!System.properties.containsKey('skipFormatKtlint')) {
         preDebugBuild.dependsOn formatKtlint
     }
-    preDebugBuild.dependsOn runCheckstyle, runKtlint
+    preDebugBuild.dependsOn runCheckstyle, runKtlint, checkDependenciesOrder
 }
 
 sonar {
@@ -196,123 +190,155 @@ sonar {
     }
 }
 
+kapt {
+    correctErrorTypes true
+}
+
+aboutLibraries {
+    // note: offline mode prevents the plugin from fetching licenses at build time, which would be
+    // harmful for reproducible builds
+    offlineMode = true
+    duplicationMode = DuplicateMode.MERGE
+}
+
 dependencies {
 /** Desugaring **/
-    coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs_nio:2.0.4'
+    coreLibraryDesugaring libs.desugar.jdk.libs.nio
 
 /** NewPipe libraries **/
-    // You can use a local version by uncommenting a few lines in settings.gradle
-    // Or you can use a commit you pushed to GitHub by just replacing TeamNewPipe with your GitHub
-    // 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'
-    // WORKAROUND: if you get errors with the NewPipeExtractor dependency, replace `v0.24.3` with
-    // the corresponding commit hash, since JitPack is sometimes buggy
-    implementation 'com.github.TeamNewPipe.NewPipeExtractor:NewPipeExtractor:v0.24.6'
-    implementation 'com.github.TeamNewPipe:NoNonsense-FilePicker:5.0.0'
+    implementation libs.teamnewpipe.nanojson
+    implementation libs.teamnewpipe.newpipe.extractor
+    implementation libs.teamnewpipe.nononsense.filepicker
 
 /** Checkstyle **/
-    checkstyle "com.puppycrawl.tools:checkstyle:${checkstyleVersion}"
-    ktlint 'com.pinterest:ktlint:0.45.2'
+    checkstyle libs.tools.checkstyle
+    ktlint libs.tools.ktlint
 
 /** Kotlin **/
-    implementation "org.jetbrains.kotlin:kotlin-stdlib:${kotlin_version}"
+    implementation libs.kotlin.stdlib
 
 /** AndroidX **/
-    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:1.12.0'
-    implementation 'androidx.documentfile:documentfile:1.0.1'
-    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:1.7.0'
-    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:${androidxRoomVersion}"
-    implementation 'androidx.swiperefreshlayout:swiperefreshlayout:1.1.0'
-    // Newer version specified to prevent accessibility regressions with RecyclerView, see:
-    // https://developer.android.com/jetpack/androidx/releases/viewpager2#1.1.0-alpha01
-    implementation 'androidx.viewpager2:viewpager2:1.1.0-beta02'
-    implementation "androidx.work:work-runtime-ktx:${androidxWorkVersion}"
-    implementation "androidx.work:work-rxjava3:${androidxWorkVersion}"
-    implementation 'com.google.android.material:material:1.11.0'
-    implementation "androidx.webkit:webkit:1.9.0"
+    implementation libs.androidx.appcompat
+    implementation libs.androidx.cardview
+    implementation libs.androidx.constraintlayout
+    implementation libs.androidx.core.ktx
+    implementation libs.androidx.documentfile
+    implementation libs.androidx.fragment.compose
+    implementation libs.androidx.lifecycle.livedata
+    implementation libs.androidx.lifecycle.viewmodel
+    implementation libs.androidx.localbroadcastmanager
+    implementation libs.androidx.media
+    implementation libs.androidx.preference
+    implementation libs.androidx.recyclerview
+    implementation libs.androidx.room.runtime
+    implementation libs.androidx.room.rxjava3
+    kapt libs.androidx.room.compiler
+    implementation libs.androidx.swiperefreshlayout
+    implementation libs.androidx.work.runtime
+    implementation libs.androidx.work.rxjava3
+    implementation libs.androidx.material
+    implementation libs.androidx.webkit
 
 /** Third-party libraries **/
     // Instance state boilerplate elimination
-    implementation 'com.github.livefront:bridge:v2.0.2'
-    implementation "com.evernote:android-state:$stateSaverVersion"
-    kapt "com.evernote:android-state-processor:$stateSaverVersion"
+    implementation libs.livefront.bridge
+    implementation libs.android.state
+    kapt libs.android.state.processor
 
     // HTML parser
-    implementation "org.jsoup:jsoup:1.17.2"
+    implementation libs.jsoup
 
     // HTTP client
-    implementation "com.squareup.okhttp3:okhttp:4.12.0"
+    implementation libs.okhttp
 
     // Media player
-    implementation "com.google.android.exoplayer:exoplayer-core:${exoPlayerVersion}"
-    implementation "com.google.android.exoplayer:exoplayer-dash:${exoPlayerVersion}"
-    implementation "com.google.android.exoplayer:exoplayer-database:${exoPlayerVersion}"
-    implementation "com.google.android.exoplayer:exoplayer-datasource:${exoPlayerVersion}"
-    implementation "com.google.android.exoplayer:exoplayer-hls:${exoPlayerVersion}"
-    implementation "com.google.android.exoplayer:exoplayer-smoothstreaming:${exoPlayerVersion}"
-    implementation "com.google.android.exoplayer:exoplayer-ui:${exoPlayerVersion}"
-    implementation "com.google.android.exoplayer:extension-mediasession:${exoPlayerVersion}"
+    implementation libs.exoplayer.core
+    implementation libs.exoplayer.dash
+    implementation libs.exoplayer.database
+    implementation libs.exoplayer.datasource
+    implementation libs.exoplayer.hls
+    implementation libs.exoplayer.smoothstreaming
+    implementation libs.exoplayer.ui
+    implementation libs.extension.mediasession
 
     // Metadata generator for service descriptors
-    compileOnly "com.google.auto.service:auto-service-annotations:${googleAutoServiceVersion}"
-    kapt "com.google.auto.service:auto-service:${googleAutoServiceVersion}"
+    compileOnly libs.auto.service
+    kapt libs.auto.service.kapt
 
     // Manager for complex RecyclerView layouts
-    implementation "com.github.lisawray.groupie:groupie:${groupieVersion}"
-    implementation "com.github.lisawray.groupie:groupie-viewbinding:${groupieVersion}"
+    implementation libs.lisawray.groupie
+    implementation libs.lisawray.groupie.viewbinding
 
     // Image loading
-    //noinspection GradleDependency --> 2.8 is the last version, not 2.71828!
-    implementation "com.squareup.picasso:picasso:2.8"
+    implementation libs.coil.compose
+    implementation libs.coil.network.okhttp
 
     // Markdown library for Android
-    implementation "io.noties.markwon:core:${markwonVersion}"
-    implementation "io.noties.markwon:linkify:${markwonVersion}"
+    implementation libs.markwon.core
+    implementation libs.markwon.linkify
 
     // Crash reporting
-    implementation "ch.acra:acra-core:5.11.3"
+    implementation libs.acra.core
 
     // Properly restarting
-    implementation 'com.jakewharton:process-phoenix:2.1.2'
+    implementation libs.process.phoenix
 
     // Reactive extensions for Java VM
-    implementation "io.reactivex.rxjava3:rxjava:3.1.8"
-    implementation "io.reactivex.rxjava3:rxandroid:3.0.2"
+    implementation libs.rxjava3.rxjava
+    implementation libs.rxjava3.rxandroid
     // RxJava binding APIs for Android UI widgets
-    implementation "com.jakewharton.rxbinding4:rxbinding:4.0.0"
+    implementation libs.rxbinding4.rxbinding
 
     // Date and time formatting
-    implementation "org.ocpsoft.prettytime:prettytime:5.0.8.Final"
+    implementation libs.prettytime
+
+    // Jetpack Compose
+    implementation(platform(libs.androidx.compose.bom))
+    implementation libs.androidx.compose.material3
+    implementation libs.androidx.compose.adaptive
+    implementation libs.androidx.activity.compose
+    implementation libs.androidx.compose.ui.tooling.preview
+    implementation libs.androidx.lifecycle.viewmodel.compose
+    implementation libs.androidx.compose.ui.text // Needed for parsing HTML to AnnotatedString
+    implementation libs.androidx.compose.material.icons.extended
+
+    // Jetpack Compose related dependencies
+    implementation libs.androidx.paging.compose
+    implementation libs.androidx.navigation.compose
+
+    // Coroutines interop
+    implementation libs.kotlinx.coroutines.rx3
+
+    // Library loading for About screen
+    implementation libs.aboutlibraries.compose.m3
+
+    // Hilt
+    implementation libs.hilt.android
+    kapt(libs.hilt.compiler)
+
+    // Scroll
+    implementation libs.lazycolumnscrollbar
 
 /** Debugging **/
     // Memory leak detection
-    debugImplementation "com.squareup.leakcanary:leakcanary-object-watcher-android:${leakCanaryVersion}"
-    debugImplementation "com.squareup.leakcanary:plumber-android:${leakCanaryVersion}"
-    debugImplementation "com.squareup.leakcanary:leakcanary-android-core:${leakCanaryVersion}"
+    debugImplementation libs.leakcanary.object.watcher
+    debugImplementation libs.leakcanary.plumber.android
+    debugImplementation libs.leakcanary.android.core
     // Debug bridge for Android
-    debugImplementation "com.facebook.stetho:stetho:${stethoVersion}"
-    debugImplementation "com.facebook.stetho:stetho-okhttp3:${stethoVersion}"
+    debugImplementation libs.stetho
+    debugImplementation libs.stetho.okhttp3
+
+    // Jetpack Compose
+    debugImplementation libs.androidx.compose.ui.tooling
 
 /** Testing **/
-    testImplementation 'junit:junit:4.13.2'
-    testImplementation 'org.mockito:mockito-core:5.6.0'
+    testImplementation libs.junit
+    testImplementation libs.mockito.core
 
-    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:3.24.2"
+    androidTestImplementation libs.androidx.junit
+    androidTestImplementation libs.androidx.runner
+    androidTestImplementation libs.androidx.room.testing
+    androidTestImplementation libs.assertj.core
 }
 
 static String getGitWorkingBranch() {

app/check-dependencies.gradle

@@ -0,0 +1,48 @@
+tasks.register('checkDependenciesOrder') {
+    group = 'verification'
+    description = 'Checks that each section in libs.versions.toml is sorted alphabetically'
+
+    def tomlFile = file('../gradle/libs.versions.toml')
+
+    doLast {
+        if (!tomlFile.exists()) {
+            throw new GradleException('TOML file not found')
+        }
+
+        def lines = tomlFile.readLines()
+        def nonSortedBlocks = []
+        def currentBlock = []
+        def prevLine = ''
+        def prevIndex = 0
+
+        lines.eachWithIndex { line, lineIndex ->
+            if (line.trim() && !line.startsWith('#')) {
+                if (line.startsWith('[')) {
+                    prevLine = ''
+                } else {
+                    def currIndex = lineIndex + 1
+                    if (prevLine > line) {
+                        if (currentBlock && currentBlock[-1] == "${prevIndex}: ${prevLine}") {
+                            currentBlock.add("${currIndex}: ${line}")
+                        } else {
+                            if (!currentBlock.isEmpty()) {
+                                nonSortedBlocks.add(currentBlock)
+                                currentBlock = []
+                            }
+                            currentBlock.add("${prevIndex}: ${prevLine}")
+                            currentBlock.add("${currIndex}: ${line}")
+                        }
+                    }
+                    prevLine = line
+                    prevIndex = lineIndex + 1
+                }
+            }
+        }
+
+        if (!currentBlock.isEmpty()) {
+            nonSortedBlocks.add(currentBlock)
+            throw new GradleException("The following lines were not sorted:\n" +
+                    nonSortedBlocks.collect { it.join("\n") }.join("\n\n"))
+        }
+    }
+}

app/src/main/AndroidManifest.xml

@@ -64,6 +64,9 @@
             <intent-filter>
                 <action android:name="android.intent.action.MEDIA_BUTTON" />
             </intent-filter>
+            <intent-filter>
+                <action android:name="android.media.browse.MediaBrowserService"/>
+            </intent-filter>
         </service>
 
         <activity
@@ -77,6 +80,11 @@
             android:exported="false"
             android:label="@string/settings" />
 
+        <activity
+            android:name=".settings.SettingsV2Activity"
+            android:exported="true"
+            android:label="@string/settings" />
+
         <activity
             android:name=".about.AboutActivity"
             android:exported="false"
@@ -424,5 +432,10 @@
         <meta-data
             android:name="com.samsung.android.multidisplay.keep_process_alive"
             android:value="true" />
+        <!-- Android Auto -->
+        <meta-data android:name="com.google.android.gms.car.application"
+            android:resource="@xml/automotive_app_desc" />
+        <meta-data android:name="com.google.android.gms.car.notification.SmallIcon"
+            android:resource="@mipmap/ic_launcher" />
     </application>
 </manifest>

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

@@ -1,275 +0,0 @@
-package org.schabi.newpipe;
-
-import android.app.Application;
-import android.content.Context;
-import android.content.SharedPreferences;
-import android.util.Log;
-
-import androidx.annotation.NonNull;
-import androidx.core.app.NotificationChannelCompat;
-import androidx.core.app.NotificationManagerCompat;
-import androidx.preference.PreferenceManager;
-
-import com.jakewharton.processphoenix.ProcessPhoenix;
-
-import org.acra.ACRA;
-import org.acra.config.CoreConfigurationBuilder;
-import org.schabi.newpipe.error.ReCaptchaActivity;
-import org.schabi.newpipe.extractor.NewPipe;
-import org.schabi.newpipe.extractor.downloader.Downloader;
-import org.schabi.newpipe.extractor.services.youtube.extractors.YoutubeStreamExtractor;
-import org.schabi.newpipe.ktx.ExceptionUtils;
-import org.schabi.newpipe.settings.NewPipeSettings;
-import org.schabi.newpipe.util.BridgeStateSaverInitializer;
-import org.schabi.newpipe.util.Localization;
-import org.schabi.newpipe.util.ServiceHelper;
-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.image.PreferredImageQuality;
-import org.schabi.newpipe.util.potoken.PoTokenProviderImpl;
-
-import java.io.IOException;
-import java.io.InterruptedIOException;
-import java.net.SocketException;
-import java.util.List;
-import java.util.Objects;
-
-import io.reactivex.rxjava3.exceptions.CompositeException;
-import io.reactivex.rxjava3.exceptions.MissingBackpressureException;
-import io.reactivex.rxjava3.exceptions.OnErrorNotImplementedException;
-import io.reactivex.rxjava3.exceptions.UndeliverableException;
-import io.reactivex.rxjava3.functions.Consumer;
-import io.reactivex.rxjava3.plugins.RxJavaPlugins;
-
-/*
- * Copyright (C) Hans-Christoph Steiner 2016 <hans@eds.org>
- * App.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 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
-    public static App getApp() {
-        return app;
-    }
-
-    @Override
-    protected void attachBaseContext(final Context base) {
-        super.attachBaseContext(base);
-        initACRA();
-    }
-
-    @Override
-    public void onCreate() {
-        super.onCreate();
-
-        app = this;
-
-        if (ProcessPhoenix.isPhoenixProcess(this)) {
-            Log.i(TAG, "This is a phoenix process! "
-                    + "Aborting initialization of App[onCreate]");
-            return;
-        }
-
-        // 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(),
-            Localization.getPreferredLocalization(this),
-            Localization.getPreferredContentCountry(this));
-        Localization.initPrettyTime(Localization.resolvePrettyTime(getApplicationContext()));
-
-        BridgeStateSaverInitializer.init(this);
-        StateSaver.init(this);
-        initNotificationChannels();
-
-        ServiceHelper.initServices(this);
-
-        // Initialize image loader
-        final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
-        PicassoHelper.init(this);
-        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));
-
-        configureRxJavaErrorHandler();
-
-        YoutubeStreamExtractor.setPoTokenProvider(PoTokenProviderImpl.INSTANCE);
-    }
-
-    @Override
-    public void onTerminate() {
-        super.onTerminate();
-        PicassoHelper.terminate();
-    }
-
-    protected Downloader getDownloader() {
-        final DownloaderImpl downloader = DownloaderImpl.init(null);
-        setCookiesToDownloader(downloader);
-        return downloader;
-    }
-
-    protected void setCookiesToDownloader(final DownloaderImpl downloader) {
-        final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(
-                getApplicationContext());
-        final String key = getApplicationContext().getString(R.string.recaptcha_cookies_key);
-        downloader.setCookie(ReCaptchaActivity.RECAPTCHA_COOKIES_KEY, prefs.getString(key, null));
-        downloader.updateYoutubeRestrictedModeCookies(getApplicationContext());
-    }
-
-    private void configureRxJavaErrorHandler() {
-        // https://github.com/ReactiveX/RxJava/wiki/What's-different-in-2.0#error-handling
-        RxJavaPlugins.setErrorHandler(new Consumer<Throwable>() {
-            @Override
-            public void accept(@NonNull final Throwable throwable) {
-                Log.e(TAG, "RxJavaPlugins.ErrorHandler called with -> : "
-                        + "throwable = [" + throwable.getClass().getName() + "]");
-
-                final Throwable actualThrowable;
-                if (throwable instanceof UndeliverableException) {
-                    // As UndeliverableException is a wrapper,
-                    // get the cause of it to get the "real" exception
-                    actualThrowable = Objects.requireNonNull(throwable.getCause());
-                } else {
-                    actualThrowable = throwable;
-                }
-
-                final List<Throwable> errors;
-                if (actualThrowable instanceof CompositeException) {
-                    errors = ((CompositeException) actualThrowable).getExceptions();
-                } else {
-                    errors = List.of(actualThrowable);
-                }
-
-                for (final Throwable error : errors) {
-                    if (isThrowableIgnored(error)) {
-                        return;
-                    }
-                    if (isThrowableCritical(error)) {
-                        reportException(error);
-                        return;
-                    }
-                }
-
-                // Out-of-lifecycle exceptions should only be reported if a debug user wishes so,
-                // When exception is not reported, log it
-                if (isDisposedRxExceptionsReported()) {
-                    reportException(actualThrowable);
-                } else {
-                    Log.e(TAG, "RxJavaPlugin: Undeliverable Exception received: ", actualThrowable);
-                }
-            }
-
-            private boolean isThrowableIgnored(@NonNull final Throwable throwable) {
-                // Don't crash the application over a simple network problem
-                return ExceptionUtils.hasAssignableCause(throwable,
-                        // network api cancellation
-                        IOException.class, SocketException.class,
-                        // blocking code disposed
-                        InterruptedException.class, InterruptedIOException.class);
-            }
-
-            private boolean isThrowableCritical(@NonNull final Throwable throwable) {
-                // Though these exceptions cannot be ignored
-                return ExceptionUtils.hasAssignableCause(throwable,
-                        NullPointerException.class, IllegalArgumentException.class, // bug in app
-                        OnErrorNotImplementedException.class, MissingBackpressureException.class,
-                        IllegalStateException.class); // bug in operator
-            }
-
-            private void reportException(@NonNull final Throwable throwable) {
-                // Throw uncaught exception that will trigger the report system
-                Thread.currentThread().getUncaughtExceptionHandler()
-                        .uncaughtException(Thread.currentThread(), throwable);
-            }
-        });
-    }
-
-    /**
-     * Called in {@link #attachBaseContext(Context)} after calling the {@code super} method.
-     * Should be overridden if MultiDex is enabled, since it has to be initialized before ACRA.
-     */
-    protected void initACRA() {
-        if (ACRA.isACRASenderServiceProcess()) {
-            return;
-        }
-
-        final CoreConfigurationBuilder acraConfig = new CoreConfigurationBuilder()
-                .withBuildConfigClass(BuildConfig.class);
-        ACRA.init(this, acraConfig);
-    }
-
-    private void initNotificationChannels() {
-        // Keep the importance below DEFAULT to avoid making noise on every notification update for
-        // the main and update channels
-        final List<NotificationChannelCompat> notificationChannelCompats = List.of(
-                new NotificationChannelCompat.Builder(getString(R.string.notification_channel_id),
-                        NotificationManagerCompat.IMPORTANCE_LOW)
-                        .setName(getString(R.string.notification_channel_name))
-                        .setDescription(getString(R.string.notification_channel_description))
-                        .build(),
-                new NotificationChannelCompat
-                        .Builder(getString(R.string.app_update_notification_channel_id),
-                        NotificationManagerCompat.IMPORTANCE_LOW)
-                        .setName(getString(R.string.app_update_notification_channel_name))
-                        .setDescription(
-                                getString(R.string.app_update_notification_channel_description))
-                        .build(),
-                new NotificationChannelCompat.Builder(getString(R.string.hash_channel_id),
-                        NotificationManagerCompat.IMPORTANCE_HIGH)
-                        .setName(getString(R.string.hash_channel_name))
-                        .setDescription(getString(R.string.hash_channel_description))
-                        .build(),
-                new NotificationChannelCompat.Builder(getString(R.string.error_report_channel_id),
-                        NotificationManagerCompat.IMPORTANCE_LOW)
-                        .setName(getString(R.string.error_report_channel_name))
-                        .setDescription(getString(R.string.error_report_channel_description))
-                        .build(),
-                new NotificationChannelCompat
-                        .Builder(getString(R.string.streams_notification_channel_id),
-                        NotificationManagerCompat.IMPORTANCE_DEFAULT)
-                        .setName(getString(R.string.streams_notification_channel_name))
-                        .setDescription(
-                                getString(R.string.streams_notification_channel_description))
-                        .build()
-        );
-
-        final NotificationManagerCompat notificationManager = NotificationManagerCompat.from(this);
-        notificationManager.createNotificationChannelsCompat(notificationChannelCompats);
-    }
-
-    protected boolean isDisposedRxExceptionsReported() {
-        return false;
-    }
-
-    public boolean isFirstRun() {
-        return isFirstRun;
-    }
-}

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

@@ -0,0 +1,290 @@
+package org.schabi.newpipe
+
+import android.app.ActivityManager
+import android.app.Application
+import android.content.Context
+import android.util.Log
+import androidx.core.app.NotificationChannelCompat
+import androidx.core.app.NotificationManagerCompat
+import androidx.core.content.getSystemService
+import androidx.preference.PreferenceManager
+import coil3.ImageLoader
+import coil3.SingletonImageLoader
+import coil3.network.okhttp.OkHttpNetworkFetcherFactory
+import coil3.request.allowRgb565
+import coil3.request.crossfade
+import coil3.util.DebugLogger
+import com.jakewharton.processphoenix.ProcessPhoenix
+import dagger.hilt.android.HiltAndroidApp
+import io.reactivex.rxjava3.exceptions.CompositeException
+import io.reactivex.rxjava3.exceptions.MissingBackpressureException
+import io.reactivex.rxjava3.exceptions.OnErrorNotImplementedException
+import io.reactivex.rxjava3.exceptions.UndeliverableException
+import io.reactivex.rxjava3.functions.Consumer
+import io.reactivex.rxjava3.plugins.RxJavaPlugins
+import org.acra.ACRA.init
+import org.acra.ACRA.isACRASenderServiceProcess
+import org.acra.config.CoreConfigurationBuilder
+import org.schabi.newpipe.error.ReCaptchaActivity
+import org.schabi.newpipe.extractor.NewPipe
+import org.schabi.newpipe.extractor.downloader.Downloader
+import org.schabi.newpipe.extractor.services.youtube.extractors.YoutubeStreamExtractor
+import org.schabi.newpipe.ktx.hasAssignableCause
+import org.schabi.newpipe.settings.NewPipeSettings
+import org.schabi.newpipe.util.BridgeStateSaverInitializer
+import org.schabi.newpipe.util.Localization
+import org.schabi.newpipe.util.ServiceHelper
+import org.schabi.newpipe.util.StateSaver
+import org.schabi.newpipe.util.image.ImageStrategy
+import org.schabi.newpipe.util.image.PreferredImageQuality
+import org.schabi.newpipe.util.potoken.PoTokenProviderImpl
+import java.io.IOException
+import java.io.InterruptedIOException
+import java.net.SocketException
+
+/*
+ * Copyright (C) Hans-Christoph Steiner 2016 <hans@eds.org>
+ * App.kt 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/>.
+ */
+@HiltAndroidApp
+open class App :
+    Application(),
+    SingletonImageLoader.Factory {
+    var isFirstRun = false
+        private set
+
+    override fun attachBaseContext(base: Context?) {
+        super.attachBaseContext(base)
+        initACRA()
+    }
+
+    override fun onCreate() {
+        super.onCreate()
+
+        instance = this
+
+        if (ProcessPhoenix.isPhoenixProcess(this)) {
+            Log.i(TAG, "This is a phoenix process! Aborting initialization of App[onCreate]")
+            return
+        }
+
+        // check if the last used preference version is set
+        // to determine whether this is the first app run
+        val 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(),
+            Localization.getPreferredLocalization(this),
+            Localization.getPreferredContentCountry(this),
+        )
+        Localization.initPrettyTime(Localization.resolvePrettyTime(this))
+
+        BridgeStateSaverInitializer.init(this)
+        StateSaver.init(this)
+        initNotificationChannels()
+
+        ServiceHelper.initServices(this)
+
+        // Initialize image loader
+        val prefs = PreferenceManager.getDefaultSharedPreferences(this)
+        ImageStrategy.setPreferredImageQuality(
+            PreferredImageQuality.fromPreferenceKey(
+                this,
+                prefs.getString(
+                    getString(R.string.image_quality_key),
+                    getString(R.string.image_quality_default),
+                ),
+            ),
+        )
+
+        configureRxJavaErrorHandler()
+
+        YoutubeStreamExtractor.setPoTokenProvider(PoTokenProviderImpl)
+    }
+
+    override fun newImageLoader(context: Context): ImageLoader =
+        ImageLoader
+            .Builder(this)
+            .logger(if (BuildConfig.DEBUG) DebugLogger() else null)
+            .allowRgb565(getSystemService<ActivityManager>()!!.isLowRamDevice)
+            .crossfade(true)
+            .components {
+                add(OkHttpNetworkFetcherFactory(callFactory = DownloaderImpl.getInstance().client))
+            }.build()
+
+    protected open fun getDownloader(): Downloader {
+        val downloader = DownloaderImpl.init(null)
+        setCookiesToDownloader(downloader)
+        return downloader
+    }
+
+    protected fun setCookiesToDownloader(downloader: DownloaderImpl) {
+        val prefs = PreferenceManager.getDefaultSharedPreferences(this)
+        val key = getString(R.string.recaptcha_cookies_key)
+        downloader.setCookie(ReCaptchaActivity.RECAPTCHA_COOKIES_KEY, prefs.getString(key, null))
+        downloader.updateYoutubeRestrictedModeCookies(this)
+    }
+
+    private fun configureRxJavaErrorHandler() {
+        // https://github.com/ReactiveX/RxJava/wiki/What's-different-in-2.0#error-handling
+        RxJavaPlugins.setErrorHandler(
+            object : Consumer<Throwable> {
+                override fun accept(throwable: Throwable) {
+                    Log.e(TAG, "RxJavaPlugins.ErrorHandler called with -> : throwable = [${throwable.javaClass.getName()}]")
+
+                    // As UndeliverableException is a wrapper,
+                    // get the cause of it to get the "real" exception
+                    val actualThrowable = (throwable as? UndeliverableException)?.cause ?: throwable
+
+                    val errors = (actualThrowable as? CompositeException)?.exceptions ?: listOf(actualThrowable)
+
+                    for (error in errors) {
+                        if (isThrowableIgnored(error)) {
+                            return
+                        }
+                        if (isThrowableCritical(error)) {
+                            reportException(error)
+                            return
+                        }
+                    }
+
+                    // Out-of-lifecycle exceptions should only be reported if a debug user wishes so,
+                    // When exception is not reported, log it
+                    if (isDisposedRxExceptionsReported()) {
+                        reportException(actualThrowable)
+                    } else {
+                        Log.e(TAG, "RxJavaPlugin: Undeliverable Exception received: ", actualThrowable)
+                    }
+                }
+
+                fun isThrowableIgnored(throwable: Throwable): Boolean {
+                    // Don't crash the application over a simple network problem
+                    return throwable // network api cancellation
+                        .hasAssignableCause(
+                            IOException::class.java,
+                            SocketException::class.java, // blocking code disposed
+                            InterruptedException::class.java,
+                            InterruptedIOException::class.java,
+                        )
+                }
+
+                fun isThrowableCritical(throwable: Throwable): Boolean {
+                    // Though these exceptions cannot be ignored
+                    return throwable
+                        .hasAssignableCause(
+                            // bug in app
+                            NullPointerException::class.java,
+                            IllegalArgumentException::class.java,
+                            OnErrorNotImplementedException::class.java,
+                            MissingBackpressureException::class.java,
+                            // bug in operator
+                            IllegalStateException::class.java,
+                        )
+                }
+
+                fun reportException(throwable: Throwable) {
+                    // Throw uncaught exception that will trigger the report system
+                    Thread
+                        .currentThread()
+                        .uncaughtExceptionHandler
+                        .uncaughtException(Thread.currentThread(), throwable)
+                }
+            },
+        )
+    }
+
+    /**
+     * Called in [.attachBaseContext] after calling the `super` method.
+     * Should be overridden if MultiDex is enabled, since it has to be initialized before ACRA.
+     */
+    protected fun initACRA() {
+        if (isACRASenderServiceProcess()) {
+            return
+        }
+
+        val acraConfig =
+            CoreConfigurationBuilder()
+                .withBuildConfigClass(BuildConfig::class.java)
+        init(this, acraConfig)
+    }
+
+    private fun initNotificationChannels() {
+        // Keep the importance below DEFAULT to avoid making noise on every notification update for
+        // the main and update channels
+        val mainChannel =
+            NotificationChannelCompat
+                .Builder(
+                    getString(R.string.notification_channel_id),
+                    NotificationManagerCompat.IMPORTANCE_LOW,
+                ).setName(getString(R.string.notification_channel_name))
+                .setDescription(getString(R.string.notification_channel_description))
+                .build()
+        val appUpdateChannel =
+            NotificationChannelCompat
+                .Builder(
+                    getString(R.string.app_update_notification_channel_id),
+                    NotificationManagerCompat.IMPORTANCE_LOW,
+                ).setName(getString(R.string.app_update_notification_channel_name))
+                .setDescription(getString(R.string.app_update_notification_channel_description))
+                .build()
+        val hashChannel =
+            NotificationChannelCompat
+                .Builder(
+                    getString(R.string.hash_channel_id),
+                    NotificationManagerCompat.IMPORTANCE_HIGH,
+                ).setName(getString(R.string.hash_channel_name))
+                .setDescription(getString(R.string.hash_channel_description))
+                .build()
+        val errorReportChannel =
+            NotificationChannelCompat
+                .Builder(
+                    getString(R.string.error_report_channel_id),
+                    NotificationManagerCompat.IMPORTANCE_LOW,
+                ).setName(getString(R.string.error_report_channel_name))
+                .setDescription(getString(R.string.error_report_channel_description))
+                .build()
+        val newStreamChannel =
+            NotificationChannelCompat
+                .Builder(
+                    getString(R.string.streams_notification_channel_id),
+                    NotificationManagerCompat.IMPORTANCE_DEFAULT,
+                ).setName(getString(R.string.streams_notification_channel_name))
+                .setDescription(getString(R.string.streams_notification_channel_description))
+                .build()
+
+        val channels = listOf(mainChannel, appUpdateChannel, hashChannel, errorReportChannel, newStreamChannel)
+
+        NotificationManagerCompat.from(this).createNotificationChannelsCompat(channels)
+    }
+
+    protected open fun isDisposedRxExceptionsReported(): Boolean = false
+
+    companion object {
+        const val PACKAGE_NAME: String = BuildConfig.APPLICATION_ID
+        private val TAG = App::class.java.toString()
+
+        @JvmStatic
+        lateinit var instance: App
+            private set
+    }
+}

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

@@ -0,0 +1,22 @@
+package org.schabi.newpipe
+
+import android.content.Context
+import android.content.SharedPreferences
+import androidx.preference.PreferenceManager
+import dagger.Module
+import dagger.Provides
+import dagger.hilt.InstallIn
+import dagger.hilt.android.qualifiers.ApplicationContext
+import dagger.hilt.components.SingletonComponent
+import javax.inject.Singleton
+
+@Module
+@InstallIn(SingletonComponent::class)
+class AppModule {
+
+    @Provides
+    @Singleton
+    fun providesSharedPreference(@ApplicationContext context: Context): SharedPreferences {
+        return PreferenceManager.getDefaultSharedPreferences(context)
+    }
+}

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

@@ -48,6 +48,11 @@ public final class DownloaderImpl extends Downloader {
         this.mCookies = new HashMap<>();
     }
 
+    @NonNull
+    public OkHttpClient getClient() {
+        return client;
+    }
+
     /**
      * It's recommended to call exactly once in the entire lifetime of the application.
      *

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

@@ -38,13 +38,13 @@ import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
+import android.webkit.WebView;
 import android.widget.AdapterView;
 import android.widget.ArrayAdapter;
 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;
@@ -52,7 +52,6 @@ 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;
 
@@ -66,13 +65,11 @@ import org.schabi.newpipe.databinding.ToolbarLayoutBinding;
 import org.schabi.newpipe.error.ErrorUtil;
 import org.schabi.newpipe.extractor.NewPipe;
 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;
@@ -140,6 +137,19 @@ public class MainActivity extends AppCompatActivity {
         ThemeHelper.setDayNightMode(this);
         ThemeHelper.setTheme(this, ServiceHelper.getSelectedServiceId(this));
 
+        // Fixes text color turning black in dark/black mode:
+        // https://github.com/TeamNewPipe/NewPipe/issues/12016
+        // For further reference see: https://issuetracker.google.com/issues/37124582
+        if (DeviceUtils.supportsWebView()) {
+            try {
+                new WebView(this);
+            } catch (final Throwable e) {
+                if (DEBUG) {
+                    Log.e(TAG, "Failed to create WebView", e);
+                }
+            }
+        }
+
         assureCorrectAppLanguage(this);
         super.onCreate(savedInstanceState);
 
@@ -172,17 +182,19 @@ public class MainActivity extends AppCompatActivity {
             NotificationWorker.initialize(this);
         }
         if (!UpdateSettingsFragment.wasUserAskedForConsent(this)
-                && !App.getApp().isFirstRun()
+                && !App.getInstance().isFirstRun()
                 && ReleaseVersionUtil.INSTANCE.isReleaseApk()) {
             UpdateSettingsFragment.askForConsentToUpdateChecks(this);
         }
+
+        Localization.migrateAppLanguageSettingIfNecessary(getApplicationContext());
     }
 
     @Override
     protected void onPostCreate(final Bundle savedInstanceState) {
         super.onPostCreate(savedInstanceState);
 
-        final App app = App.getApp();
+        final App app = App.getInstance();
         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(app);
 
         if (prefs.getBoolean(app.getString(R.string.update_app_key), false)
@@ -566,39 +578,27 @@ public class MainActivity extends AppCompatActivity {
         // In case bottomSheet is not visible on the screen or collapsed we can assume that the user
         // interacts with a fragment inside fragment_holder so all back presses should be
         // handled by it
-        if (bottomSheetHiddenOrCollapsed()) {
-            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);
-            }
+        final var fragmentManager = getSupportFragmentManager();
 
-        } else {
-            final Fragment fragmentPlayer = getSupportFragmentManager()
-                    .findFragmentById(R.id.fragment_player_holder);
+        if (bottomSheetHiddenOrCollapsed()) {
+            final var fragment = fragmentManager.findFragmentById(R.id.fragment_holder);
             // If current fragment implements BackPressable (i.e. can/wanna handle back press)
             // delegate the back press to it
-            if (fragmentPlayer instanceof BackPressable) {
-                if (!((BackPressable) fragmentPlayer).onBackPressed()) {
-                    BottomSheetBehavior.from(mainBinding.fragmentPlayerHolder)
-                            .setState(BottomSheetBehavior.STATE_COLLAPSED);
-                }
+            if (fragment instanceof BackPressable backPressable && backPressable.onBackPressed()) {
                 return;
             }
+        } else {
+            final var player = fragmentManager.findFragmentById(R.id.fragment_player_holder);
+            // If current fragment implements BackPressable (i.e. can/wanna handle back press)
+            // delegate the back press to it
+            if (player instanceof BackPressable backPressable && !backPressable.onBackPressed()) {
+                BottomSheetBehavior.from(mainBinding.fragmentPlayerHolder)
+                        .setState(BottomSheetBehavior.STATE_COLLAPSED);
+            }
+            return;
         }
 
-        if (getSupportFragmentManager().getBackStackEntryCount() == 1) {
+        if (fragmentManager.getBackStackEntryCount() == 1) {
             finish();
         } else {
             super.onBackPressed();
@@ -657,15 +657,9 @@ public class MainActivity extends AppCompatActivity {
      * </pre>
      */
     private void onHomeButtonPressed() {
-        final FragmentManager fm = getSupportFragmentManager();
-        final Fragment fragment = fm.findFragmentById(R.id.fragment_holder);
+        final var fm = getSupportFragmentManager();
 
-        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 (!NavigationHelper.tryGotoSearchFragment(fm)) {
             // If search fragment wasn't found in the backstack go to the main fragment
             NavigationHelper.gotoMainFragment(fm);
         }
@@ -848,7 +842,8 @@ public class MainActivity extends AppCompatActivity {
                 @Override
                 public void onReceive(final Context context, final Intent intent) {
                     if (Objects.equals(intent.getAction(),
-                            VideoDetailFragment.ACTION_PLAYER_STARTED)) {
+                            VideoDetailFragment.ACTION_PLAYER_STARTED)
+                            && PlayerHolder.getInstance().isPlayerOpen()) {
                         openMiniPlayerIfMissing();
                         // At this point the player is added 100%, we can unregister. Other actions
                         // are useless since the fragment will not be removed after that.
@@ -860,71 +855,13 @@ public class MainActivity extends AppCompatActivity {
             final IntentFilter intentFilter = new IntentFilter();
             intentFilter.addAction(VideoDetailFragment.ACTION_PLAYER_STARTED);
             registerReceiver(broadcastReceiver, intentFilter);
+
+            // If the PlayerHolder is not bound yet, but the service is running, try to bind to it.
+            // Once the connection is established, the ACTION_PLAYER_STARTED will be sent.
+            PlayerHolder.getInstance().tryBindIfNeeded(this);
         }
     }
 
-    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/about/AboutActivity.kt

@@ -1,203 +1,31 @@
 package org.schabi.newpipe.about
 
 import android.os.Bundle
-import android.view.LayoutInflater
-import android.view.MenuItem
-import android.view.View
-import android.view.ViewGroup
-import android.widget.Button
-import androidx.annotation.StringRes
+import androidx.activity.compose.setContent
+import androidx.activity.enableEdgeToEdge
 import androidx.appcompat.app.AppCompatActivity
-import androidx.fragment.app.Fragment
-import androidx.fragment.app.FragmentActivity
-import androidx.viewpager2.adapter.FragmentStateAdapter
-import com.google.android.material.tabs.TabLayoutMediator
-import org.schabi.newpipe.BuildConfig
+import androidx.compose.ui.res.stringResource
 import org.schabi.newpipe.R
-import org.schabi.newpipe.databinding.ActivityAboutBinding
-import org.schabi.newpipe.databinding.FragmentAboutBinding
+import org.schabi.newpipe.ui.components.common.ScaffoldWithToolbar
+import org.schabi.newpipe.ui.screens.AboutScreen
+import org.schabi.newpipe.ui.theme.AppTheme
 import org.schabi.newpipe.util.Localization
-import org.schabi.newpipe.util.ThemeHelper
-import org.schabi.newpipe.util.external_communication.ShareUtils
 
 class AboutActivity : AppCompatActivity() {
-
     override fun onCreate(savedInstanceState: Bundle?) {
         Localization.assureCorrectAppLanguage(this)
+        enableEdgeToEdge()
         super.onCreate(savedInstanceState)
-        ThemeHelper.setTheme(this)
-        title = getString(R.string.title_activity_about)
 
-        val aboutBinding = ActivityAboutBinding.inflate(layoutInflater)
-        setContentView(aboutBinding.root)
-        setSupportActionBar(aboutBinding.aboutToolbar)
-        supportActionBar?.setDisplayHomeAsUpEnabled(true)
-
-        // Create the adapter that will return a fragment for each of the three
-        // primary sections of the activity.
-        val mAboutStateAdapter = AboutStateAdapter(this)
-        // Set up the ViewPager with the sections adapter.
-        aboutBinding.aboutViewPager2.adapter = mAboutStateAdapter
-        TabLayoutMediator(
-            aboutBinding.aboutTabLayout,
-            aboutBinding.aboutViewPager2
-        ) { tab, position ->
-            tab.setText(mAboutStateAdapter.getPageTitle(position))
-        }.attach()
-    }
-
-    override fun onOptionsItemSelected(item: MenuItem): Boolean {
-        if (item.itemId == android.R.id.home) {
-            finish()
-            return true
-        }
-        return super.onOptionsItemSelected(item)
-    }
-
-    /**
-     * A placeholder fragment containing a simple view.
-     */
-    class AboutFragment : Fragment() {
-        private fun Button.openLink(@StringRes url: Int) {
-            setOnClickListener {
-                ShareUtils.openUrlInApp(context, requireContext().getString(url))
+        setContent {
+            AppTheme {
+                ScaffoldWithToolbar(
+                    title = stringResource(R.string.title_activity_about),
+                    onBackClick = { onBackPressedDispatcher.onBackPressed() }
+                ) { padding ->
+                    AboutScreen(padding)
+                }
             }
         }
-
-        override fun onCreateView(
-            inflater: LayoutInflater,
-            container: ViewGroup?,
-            savedInstanceState: Bundle?
-        ): View {
-            FragmentAboutBinding.inflate(inflater, container, false).apply {
-                aboutAppVersion.text = BuildConfig.VERSION_NAME
-                aboutGithubLink.openLink(R.string.github_url)
-                aboutDonationLink.openLink(R.string.donation_url)
-                aboutWebsiteLink.openLink(R.string.website_url)
-                aboutPrivacyPolicyLink.openLink(R.string.privacy_policy_url)
-                faqLink.openLink(R.string.faq_url)
-                return root
-            }
-        }
-    }
-
-    /**
-     * A [FragmentStateAdapter] that returns a fragment corresponding to
-     * one of the sections/tabs/pages.
-     */
-    private class AboutStateAdapter(fa: FragmentActivity) : FragmentStateAdapter(fa) {
-        private val posAbout = 0
-        private val posLicense = 1
-        private val totalCount = 2
-
-        override fun createFragment(position: Int): Fragment {
-            return when (position) {
-                posAbout -> AboutFragment()
-                posLicense -> LicenseFragment.newInstance(SOFTWARE_COMPONENTS)
-                else -> throw IllegalArgumentException("Unknown position for ViewPager2")
-            }
-        }
-
-        override fun getItemCount(): Int {
-            // Show 2 total pages.
-            return totalCount
-        }
-
-        fun getPageTitle(position: Int): Int {
-            return when (position) {
-                posAbout -> R.string.tab_about
-                posLicense -> R.string.tab_licenses
-                else -> throw IllegalArgumentException("Unknown position for ViewPager2")
-            }
-        }
-    }
-
-    companion object {
-        /**
-         * List of all software components.
-         */
-        private val SOFTWARE_COMPONENTS = arrayListOf(
-            SoftwareComponent(
-                "ACRA", "2013", "Kevin Gaudin",
-                "https://github.com/ACRA/acra", StandardLicenses.APACHE2
-            ),
-            SoftwareComponent(
-                "AndroidX", "2005 - 2011", "The Android Open Source Project",
-                "https://developer.android.com/jetpack", StandardLicenses.APACHE2
-            ),
-            SoftwareComponent(
-                "ExoPlayer", "2014 - 2020", "Google, Inc.",
-                "https://github.com/google/ExoPlayer", StandardLicenses.APACHE2
-            ),
-            SoftwareComponent(
-                "GigaGet", "2014 - 2015", "Peter Cai",
-                "https://github.com/PaperAirplane-Dev-Team/GigaGet", StandardLicenses.GPL3
-            ),
-            SoftwareComponent(
-                "Groupie", "2016", "Lisa Wray",
-                "https://github.com/lisawray/groupie", StandardLicenses.MIT
-            ),
-            SoftwareComponent(
-                "Android-State", "2018", "Evernote",
-                "https://github.com/Evernote/android-state", StandardLicenses.EPL1
-            ),
-            SoftwareComponent(
-                "Bridge", "2021", "Livefront",
-                "https://github.com/livefront/bridge", StandardLicenses.APACHE2
-            ),
-            SoftwareComponent(
-                "Jsoup", "2009 - 2020", "Jonathan Hedley",
-                "https://github.com/jhy/jsoup", StandardLicenses.MIT
-            ),
-            SoftwareComponent(
-                "Markwon", "2019", "Dimitry Ivanov",
-                "https://github.com/noties/Markwon", StandardLicenses.APACHE2
-            ),
-            SoftwareComponent(
-                "Material Components for Android", "2016 - 2020", "Google, Inc.",
-                "https://github.com/material-components/material-components-android",
-                StandardLicenses.APACHE2
-            ),
-            SoftwareComponent(
-                "NewPipe Extractor", "2017 - 2020", "Christian Schabesberger",
-                "https://github.com/TeamNewPipe/NewPipeExtractor", StandardLicenses.GPL3
-            ),
-            SoftwareComponent(
-                "NoNonsense-FilePicker", "2016", "Jonas Kalderstam",
-                "https://github.com/spacecowboy/NoNonsense-FilePicker", StandardLicenses.MPL2
-            ),
-            SoftwareComponent(
-                "OkHttp", "2019", "Square, Inc.",
-                "https://square.github.io/okhttp/", StandardLicenses.APACHE2
-            ),
-            SoftwareComponent(
-                "Picasso", "2013", "Square, Inc.",
-                "https://square.github.io/picasso/", StandardLicenses.APACHE2
-            ),
-            SoftwareComponent(
-                "PrettyTime", "2012 - 2020", "Lincoln Baxter, III",
-                "https://github.com/ocpsoft/prettytime", StandardLicenses.APACHE2
-            ),
-            SoftwareComponent(
-                "ProcessPhoenix", "2015", "Jake Wharton",
-                "https://github.com/JakeWharton/ProcessPhoenix", StandardLicenses.APACHE2
-            ),
-            SoftwareComponent(
-                "RxAndroid", "2015", "The RxAndroid authors",
-                "https://github.com/ReactiveX/RxAndroid", StandardLicenses.APACHE2
-            ),
-            SoftwareComponent(
-                "RxBinding", "2015", "Jake Wharton",
-                "https://github.com/JakeWharton/RxBinding", StandardLicenses.APACHE2
-            ),
-            SoftwareComponent(
-                "RxJava", "2016 - 2020", "RxJava Contributors",
-                "https://github.com/ReactiveX/RxJava", StandardLicenses.APACHE2
-            ),
-            SoftwareComponent(
-                "SearchPreference", "2018", "ByteHamster",
-                "https://github.com/ByteHamster/SearchPreference", StandardLicenses.MIT
-            ),
-        )
     }
 }

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

@@ -1,11 +0,0 @@
-package org.schabi.newpipe.about
-
-import android.os.Parcelable
-import kotlinx.parcelize.Parcelize
-import java.io.Serializable
-
-/**
- * Class for storing information about a software license.
- */
-@Parcelize
-class License(val name: String, val abbreviation: String, val filename: String) : Parcelable, Serializable

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

@@ -1,140 +0,0 @@
-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: List<SoftwareComponent>
-    private var activeSoftwareComponent: SoftwareComponent? = null
-    private val compositeDisposable = CompositeDisposable()
-
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-        softwareComponents = arguments?.parcelableArrayList<SoftwareComponent>(ARG_COMPONENTS)!!
-            .sortedBy { it.name } // Sort components by name
-        activeSoftwareComponent = savedInstanceState?.getSerializable(SOFTWARE_COMPONENT_KEY) as? SoftwareComponent
-    }
-
-    override fun onDestroy() {
-        compositeDisposable.dispose()
-        super.onDestroy()
-    }
-
-    override fun onCreateView(
-        inflater: LayoutInflater,
-        container: ViewGroup?,
-        savedInstanceState: Bundle?
-    ): View {
-        val binding = FragmentLicensesBinding.inflate(inflater, container, false)
-        binding.licensesAppReadLicense.setOnClickListener {
-            compositeDisposable.add(
-                showLicense(NEWPIPE_SOFTWARE_COMPONENT)
-            )
-        }
-        for (component in softwareComponents) {
-            val componentBinding = ItemSoftwareComponentBinding
-                .inflate(inflater, container, false)
-            componentBinding.name.text = component.name
-            componentBinding.copyright.text = getString(
-                R.string.copyright,
-                component.years,
-                component.copyrightOwner,
-                component.license.abbreviation
-            )
-            val root: View = componentBinding.root
-            root.tag = component
-            root.setOnClickListener {
-                compositeDisposable.add(
-                    showLicense(component)
-                )
-            }
-            binding.licensesSoftwareComponents.addView(root)
-            registerForContextMenu(root)
-        }
-        activeSoftwareComponent?.let { compositeDisposable.add(showLicense(it)) }
-        return binding.root
-    }
-
-    override fun onSaveInstanceState(savedInstanceState: Bundle) {
-        super.onSaveInstanceState(savedInstanceState)
-        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 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

@@ -1,52 +0,0 @@
-package org.schabi.newpipe.about
-
-import android.content.Context
-import org.schabi.newpipe.R
-import org.schabi.newpipe.util.ThemeHelper
-import java.io.IOException
-
-/**
- * @param context the context to use
- * @param license the license
- * @return String which contains a HTML formatted license page
- * styled according to the context's theme
- */
-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
-            .replace("</head>", "<style>${getLicenseStylesheet(context)}</style></head>")
-    } catch (e: IOException) {
-        throw IllegalArgumentException("Could not get license file: ${license.filename}", e)
-    }
-}
-
-/**
- * @param context the Android context
- * @return String which is a CSS stylesheet according to the context's theme
- */
-fun getLicenseStylesheet(context: Context): String {
-    val isLightTheme = ThemeHelper.isLightThemeSelected(context)
-    val licenseBackgroundColor = getHexRGBColor(
-        context, if (isLightTheme) R.color.light_license_background_color else R.color.dark_license_background_color
-    )
-    val licenseTextColor = getHexRGBColor(
-        context, if (isLightTheme) R.color.light_license_text_color else R.color.dark_license_text_color
-    )
-    val youtubePrimaryColor = getHexRGBColor(
-        context, if (isLightTheme) R.color.light_youtube_primary_color else R.color.dark_youtube_primary_color
-    )
-    return "body{padding:12px 15px;margin:0;background:#$licenseBackgroundColor;color:#$licenseTextColor}" +
-        "a[href]{color:#$youtubePrimaryColor}pre{white-space:pre-wrap}"
-}
-
-/**
- * Cast R.color to a hexadecimal color value.
- *
- * @param context the context to use
- * @param color   the color number from R.color
- * @return a six characters long String with hexadecimal RGB values
- */
-fun getHexRGBColor(context: Context, color: Int): String {
-    return context.getString(color).substring(3)
-}

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

@@ -1,17 +0,0 @@
-package org.schabi.newpipe.about
-
-import android.os.Parcelable
-import kotlinx.parcelize.Parcelize
-import java.io.Serializable
-
-@Parcelize
-class SoftwareComponent
-@JvmOverloads
-constructor(
-    val name: String,
-    val years: String,
-    val copyrightOwner: String,
-    val link: String,
-    val license: License,
-    val version: String? = null
-) : Parcelable, Serializable

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

@@ -1,21 +0,0 @@
-package org.schabi.newpipe.about
-
-/**
- * Class containing information about standard software licenses.
- */
-object StandardLicenses {
-    @JvmField
-    val GPL3 = License("GNU General Public License, Version 3.0", "GPLv3", "gpl_3.html")
-
-    @JvmField
-    val APACHE2 = License("Apache License, Version 2.0", "ALv2", "apache2.html")
-
-    @JvmField
-    val MPL2 = License("Mozilla Public License, Version 2.0", "MPL 2.0", "mpl2.html")
-
-    @JvmField
-    val MIT = License("MIT License", "MIT", "mit.html")
-
-    @JvmField
-    val EPL1 = License("Eclipse Public License, Version 1.0", "EPL 1.0", "epl1.html")
-}

app/src/main/java/org/schabi/newpipe/database/history/model/StreamHistoryEntry.kt

@@ -3,6 +3,8 @@ package org.schabi.newpipe.database.history.model
 import androidx.room.ColumnInfo
 import androidx.room.Embedded
 import org.schabi.newpipe.database.stream.model.StreamEntity
+import org.schabi.newpipe.extractor.stream.StreamInfoItem
+import org.schabi.newpipe.util.image.ImageStrategy
 import java.time.OffsetDateTime
 
 data class StreamHistoryEntry(
@@ -27,4 +29,17 @@ data class StreamHistoryEntry(
         return this.streamEntity.uid == other.streamEntity.uid && streamId == other.streamId &&
             accessDate.isEqual(other.accessDate)
     }
+
+    fun toStreamInfoItem(): StreamInfoItem =
+        StreamInfoItem(
+            streamEntity.serviceId,
+            streamEntity.url,
+            streamEntity.title,
+            streamEntity.streamType,
+        ).apply {
+            duration = streamEntity.duration
+            uploaderName = streamEntity.uploader
+            uploaderUrl = streamEntity.uploaderUrl
+            thumbnails = ImageStrategy.dbUrlToImageList(streamEntity.thumbnailUrl)
+        }
 }

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

@@ -1,5 +1,7 @@
 package org.schabi.newpipe.database.playlist;
 
+import androidx.annotation.Nullable;
+
 import org.schabi.newpipe.database.LocalItem;
 
 public interface PlaylistLocalItem extends LocalItem {
@@ -10,4 +12,7 @@ public interface PlaylistLocalItem extends LocalItem {
     long getUid();
 
     void setDisplayIndex(long displayIndex);
+
+    @Nullable
+    String getThumbnailUrl();
 }

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

@@ -9,6 +9,8 @@ import static org.schabi.newpipe.database.playlist.model.PlaylistEntity.PLAYLIST
 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 androidx.annotation.Nullable;
+
 public class PlaylistMetadataEntry implements PlaylistLocalItem {
     public static final String PLAYLIST_STREAM_COUNT = "streamCount";
 
@@ -71,4 +73,10 @@ public class PlaylistMetadataEntry implements PlaylistLocalItem {
     public void setDisplayIndex(final long displayIndex) {
         this.displayIndex = displayIndex;
     }
+
+    @Nullable
+    @Override
+    public String getThumbnailUrl() {
+        return thumbnailUrl;
+    }
 }

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

@@ -34,7 +34,7 @@ public interface PlaylistRemoteDAO extends BasicDAO<PlaylistRemoteEntity> {
 
     @Query("SELECT * FROM " + REMOTE_PLAYLIST_TABLE + " WHERE "
             + REMOTE_PLAYLIST_ID + " = :playlistId")
-    Flowable<List<PlaylistRemoteEntity>> getPlaylist(long playlistId);
+    Flowable<PlaylistRemoteEntity> getPlaylist(long playlistId);
 
     @Query("SELECT * FROM " + REMOTE_PLAYLIST_TABLE + " WHERE "
             + REMOTE_PLAYLIST_URL + " = :url AND " + REMOTE_PLAYLIST_SERVICE_ID + " = :serviceId")

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

@@ -2,6 +2,7 @@ package org.schabi.newpipe.database.playlist.model;
 
 import android.text.TextUtils;
 
+import androidx.annotation.Nullable;
 import androidx.room.ColumnInfo;
 import androidx.room.Entity;
 import androidx.room.Ignore;
@@ -134,6 +135,8 @@ public class PlaylistRemoteEntity implements PlaylistLocalItem {
         this.name = name;
     }
 
+    @Nullable
+    @Override
     public String getThumbnailUrl() {
         return thumbnailUrl;
     }

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

@@ -8,6 +8,7 @@ import androidx.room.Query
 import androidx.room.Transaction
 import io.reactivex.rxjava3.core.Completable
 import io.reactivex.rxjava3.core.Flowable
+import io.reactivex.rxjava3.core.Maybe
 import org.schabi.newpipe.database.BasicDAO
 import org.schabi.newpipe.database.stream.model.StreamEntity
 import org.schabi.newpipe.database.stream.model.StreamEntity.Companion.STREAM_ID
@@ -27,7 +28,7 @@ abstract class StreamDAO : BasicDAO<StreamEntity> {
     abstract override fun listByService(serviceId: Int): Flowable<List<StreamEntity>>
 
     @Query("SELECT * FROM streams WHERE url = :url AND service_id = :serviceId")
-    abstract fun getStream(serviceId: Long, url: String): Flowable<List<StreamEntity>>
+    abstract fun getStream(serviceId: Long, url: String): Maybe<StreamEntity>
 
     @Query("UPDATE streams SET uploader_url = :uploaderUrl WHERE url = :url AND service_id = :serviceId")
     abstract fun setUploaderUrl(serviceId: Long, url: String, uploaderUrl: String): Completable

app/src/main/java/org/schabi/newpipe/database/stream/dao/StreamStateDAO.java

@@ -1,5 +1,8 @@
 package org.schabi.newpipe.database.stream.dao;
 
+import static org.schabi.newpipe.database.stream.model.StreamStateEntity.JOIN_STREAM_ID;
+import static org.schabi.newpipe.database.stream.model.StreamStateEntity.STREAM_STATE_TABLE;
+
 import androidx.room.Dao;
 import androidx.room.Insert;
 import androidx.room.OnConflictStrategy;
@@ -12,9 +15,7 @@ import org.schabi.newpipe.database.stream.model.StreamStateEntity;
 import java.util.List;
 
 import io.reactivex.rxjava3.core.Flowable;
-
-import static org.schabi.newpipe.database.stream.model.StreamStateEntity.JOIN_STREAM_ID;
-import static org.schabi.newpipe.database.stream.model.StreamStateEntity.STREAM_STATE_TABLE;
+import io.reactivex.rxjava3.core.Maybe;
 
 @Dao
 public interface StreamStateDAO extends BasicDAO<StreamStateEntity> {
@@ -32,7 +33,7 @@ public interface StreamStateDAO extends BasicDAO<StreamStateEntity> {
     }
 
     @Query("SELECT * FROM " + STREAM_STATE_TABLE + " WHERE " + JOIN_STREAM_ID + " = :streamId")
-    Flowable<List<StreamStateEntity>> getState(long streamId);
+    Maybe<StreamStateEntity> getState(long streamId);
 
     @Query("DELETE FROM " + STREAM_STATE_TABLE + " WHERE " + JOIN_STREAM_ID + " = :streamId")
     int deleteState(long streamId);

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

@@ -9,7 +9,6 @@ import com.google.auto.service.AutoService;
 import org.acra.config.CoreConfiguration;
 import org.acra.sender.ReportSender;
 import org.acra.sender.ReportSenderFactory;
-import org.schabi.newpipe.App;
 
 /*
  * Created by Christian Schabesberger on 13.09.16.

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

@@ -6,9 +6,11 @@ import android.view.View;
 import android.view.ViewGroup;
 
 import androidx.annotation.Nullable;
+import androidx.compose.ui.platform.ComposeView;
 
 import org.schabi.newpipe.BaseFragment;
 import org.schabi.newpipe.R;
+import org.schabi.newpipe.ui.emptystate.EmptyStateUtil;
 
 public class EmptyFragment extends BaseFragment {
     private static final String SHOW_MESSAGE = "SHOW_MESSAGE";
@@ -26,8 +28,10 @@ public class EmptyFragment extends BaseFragment {
                              final Bundle savedInstanceState) {
         final boolean showMessage = getArguments().getBoolean(SHOW_MESSAGE);
         final View view = inflater.inflate(R.layout.fragment_empty, container, false);
-        view.findViewById(R.id.empty_state_view).setVisibility(
-                showMessage ? View.VISIBLE : View.GONE);
+
+        final ComposeView composeView = view.findViewById(R.id.empty_state_view);
+        EmptyStateUtil.setEmptyStateComposable(composeView);
+        composeView.setVisibility(showMessage ? View.VISIBLE : View.GONE);
         return view;
     }
 }

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

@@ -74,7 +74,6 @@ import org.schabi.newpipe.error.ReCaptchaActivity;
 import org.schabi.newpipe.error.UserAction;
 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;
@@ -117,7 +116,7 @@ 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 org.schabi.newpipe.util.image.CoilHelper;
 
 import java.util.ArrayList;
 import java.util.Iterator;
@@ -128,6 +127,7 @@ import java.util.Optional;
 import java.util.concurrent.TimeUnit;
 import java.util.function.Consumer;
 
+import coil3.util.CoilUtils;
 import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers;
 import io.reactivex.rxjava3.disposables.CompositeDisposable;
 import io.reactivex.rxjava3.disposables.Disposable;
@@ -159,8 +159,6 @@ public final class VideoDetailFragment
     private static final String DESCRIPTION_TAB_TAG = "DESCRIPTION TAB";
     private static final String EMPTY_TAB_TAG = "EMPTY TAB";
 
-    private static final String PICASSO_VIDEO_DETAILS_TAG = "PICASSO_VIDEO_DETAILS_TAG";
-
     // tabs
     private boolean showComments;
     private boolean showRelatedItems;
@@ -190,21 +188,21 @@ public final class VideoDetailFragment
             };
 
     @State
-    protected int serviceId = Constants.NO_SERVICE_ID;
+    int serviceId = Constants.NO_SERVICE_ID;
     @State
     @NonNull
-    protected String title = "";
+    String title = "";
     @State
     @Nullable
-    protected String url = null;
+    String url = null;
     @Nullable
-    protected PlayQueue playQueue = null;
+    private PlayQueue playQueue = null;
     @State
     int bottomSheetState = BottomSheetBehavior.STATE_EXPANDED;
     @State
     int lastStableBottomSheetState = BottomSheetBehavior.STATE_EXPANDED;
     @State
-    protected boolean autoPlayEnabled = true;
+    boolean autoPlayEnabled = true;
 
     @Nullable
     private StreamInfo currentInfo = null;
@@ -236,16 +234,19 @@ public final class VideoDetailFragment
     // Service management
     //////////////////////////////////////////////////////////////////////////*/
     @Override
-    public void onServiceConnected(final Player connectedPlayer,
-                                   final PlayerService connectedPlayerService,
-                                   final boolean playAfterConnect) {
-        player = connectedPlayer;
+    public void onServiceConnected(@NonNull final PlayerService connectedPlayerService) {
         playerService = connectedPlayerService;
+    }
+
+    @Override
+    public void onPlayerConnected(@NonNull final Player connectedPlayer,
+                                  final boolean playAfterConnect) {
+        player = connectedPlayer;
 
         // It will do nothing if the player is not in fullscreen mode
         hideSystemUiIfNeeded();
 
-        final Optional<MainPlayerUi> playerUi = player.UIs().get(MainPlayerUi.class);
+        final Optional<MainPlayerUi> playerUi = player.UIs().getOpt(MainPlayerUi.class);
         if (!player.videoPlayerSelected() && !playAfterConnect) {
             return;
         }
@@ -272,11 +273,18 @@ public final class VideoDetailFragment
         updateOverlayPlayQueueButtonVisibility();
     }
 
+    @Override
+    public void onPlayerDisconnected() {
+        player = null;
+        // the binding could be null at this point, if the app is finishing
+        if (binding != null) {
+            restoreDefaultBrightness();
+        }
+    }
+
     @Override
     public void onServiceDisconnected() {
         playerService = null;
-        player = null;
-        restoreDefaultBrightness();
     }
 
 
@@ -430,18 +438,15 @@ public final class VideoDetailFragment
     @Override
     public void onActivityResult(final int requestCode, final int resultCode, final Intent data) {
         super.onActivityResult(requestCode, resultCode, data);
-        switch (requestCode) {
-            case ReCaptchaActivity.RECAPTCHA_REQUEST:
-                if (resultCode == Activity.RESULT_OK) {
-                    NavigationHelper.openVideoDetailFragment(requireContext(), getFM(),
-                            serviceId, url, title, null, false);
-                } else {
-                    Log.e(TAG, "ReCaptcha failed");
-                }
-                break;
-            default:
-                Log.e(TAG, "Request code from activity not supported [" + requestCode + "]");
-                break;
+        if (requestCode == ReCaptchaActivity.RECAPTCHA_REQUEST) {
+            if (resultCode == Activity.RESULT_OK) {
+                NavigationHelper.openVideoDetailFragment(requireContext(), getFM(),
+                        serviceId, url, title, null, false);
+            } else {
+                Log.e(TAG, "ReCaptcha failed");
+            }
+        } else {
+            Log.e(TAG, "Request code from activity not supported [" + requestCode + "]");
         }
     }
 
@@ -521,7 +526,7 @@ public final class VideoDetailFragment
         binding.overlayPlayPauseButton.setOnClickListener(v -> {
             if (playerIsNotStopped()) {
                 player.playPause();
-                player.UIs().get(VideoPlayerUi.class).ifPresent(ui -> ui.hideControls(0, 0));
+                player.UIs().getOpt(VideoPlayerUi.class).ifPresent(ui -> ui.hideControls(0, 0));
                 showSystemUi();
             } else {
                 autoPlayEnabled = true; // forcefully start playing
@@ -680,7 +685,7 @@ public final class VideoDetailFragment
     @Override
     public boolean onKeyDown(final int keyCode) {
         return isPlayerAvailable()
-                && player.UIs().get(VideoPlayerUi.class)
+                && player.UIs().getOpt(VideoPlayerUi.class)
                 .map(playerUi -> playerUi.onKeyDown(keyCode)).orElse(false);
     }
 
@@ -807,25 +812,17 @@ public final class VideoDetailFragment
 
     }
 
-    protected void prepareAndLoadInfo() {
+    private void prepareAndLoadInfo() {
         scrollToTop();
         startLoading(false);
     }
 
     @Override
     public void startLoading(final boolean forceLoad) {
-        super.startLoading(forceLoad);
-
-        initTabs();
-        currentInfo = null;
-        if (currentWorker != null) {
-            currentWorker.dispose();
-        }
-
-        runWorker(forceLoad, stack.isEmpty());
+        startLoading(forceLoad, null);
     }
 
-    private void startLoading(final boolean forceLoad, final boolean addToBackStack) {
+    private void startLoading(final boolean forceLoad, final @Nullable Boolean addToBackStack) {
         super.startLoading(forceLoad);
 
         initTabs();
@@ -834,7 +831,7 @@ public final class VideoDetailFragment
             currentWorker.dispose();
         }
 
-        runWorker(forceLoad, addToBackStack);
+        runWorker(forceLoad, addToBackStack != null ? addToBackStack : stack.isEmpty());
     }
 
     private void runWorker(final boolean forceLoad, final boolean addToBackStack) {
@@ -882,8 +879,7 @@ public final class VideoDetailFragment
         tabContentDescriptions.clear();
 
         if (shouldShowComments()) {
-            pageAdapter.addFragment(
-                    CommentsFragment.getInstance(serviceId, url, title), COMMENTS_TAB_TAG);
+            pageAdapter.addFragment(CommentsFragment.getInstance(serviceId, url), COMMENTS_TAB_TAG);
             tabIcons.add(R.drawable.ic_comment);
             tabContentDescriptions.add(R.string.comments_tab_description);
         }
@@ -1013,20 +1009,6 @@ 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
     //////////////////////////////////////////////////////////////////////////*/
@@ -1035,7 +1017,7 @@ public final class VideoDetailFragment
         // If a user watched video inside fullscreen mode and than chose another player
         // return to non-fullscreen mode
         if (isPlayerAvailable()) {
-            player.UIs().get(MainPlayerUi.class).ifPresent(playerUi -> {
+            player.UIs().getOpt(MainPlayerUi.class).ifPresent(playerUi -> {
                 if (playerUi.isFullscreen()) {
                     playerUi.toggleFullscreen();
                 }
@@ -1145,7 +1127,7 @@ public final class VideoDetailFragment
     }
 
     private void openMainPlayer() {
-        if (!isPlayerServiceAvailable()) {
+        if (noPlayerServiceAvailable()) {
             playerHolder.startService(autoPlayEnabled, this);
             return;
         }
@@ -1170,7 +1152,7 @@ public final class VideoDetailFragment
      */
     private void hideMainPlayerOnLoadingNewStream() {
         final var root = getRoot();
-        if (!isPlayerServiceAvailable() || root.isEmpty() || !player.videoPlayerSelected()) {
+        if (noPlayerServiceAvailable() || root.isEmpty() || !player.videoPlayerSelected()) {
             return;
         }
 
@@ -1251,7 +1233,7 @@ public final class VideoDetailFragment
             // setup the surface view height, so that it fits the video correctly
             setHeightThumbnail();
 
-            player.UIs().get(MainPlayerUi.class).ifPresent(playerUi -> {
+            player.UIs().getOpt(MainPlayerUi.class).ifPresent(playerUi -> {
                 // sometimes binding would be null here, even though getView() != null above u.u
                 if (binding != null) {
                     // prevent from re-adding a view multiple times
@@ -1267,7 +1249,7 @@ public final class VideoDetailFragment
         makeDefaultHeightForVideoPlaceholder();
 
         if (player != null) {
-            player.UIs().get(VideoPlayerUi.class).ifPresent(VideoPlayerUi::removeViewFromParent);
+            player.UIs().getOpt(VideoPlayerUi.class).ifPresent(VideoPlayerUi::removeViewFromParent);
         }
     }
 
@@ -1334,7 +1316,7 @@ public final class VideoDetailFragment
         binding.detailThumbnailImageView.setMinimumHeight(newHeight);
         if (isPlayerAvailable()) {
             final int maxHeight = (int) (metrics.heightPixels * MAX_PLAYER_HEIGHT);
-            player.UIs().get(VideoPlayerUi.class).ifPresent(ui ->
+            player.UIs().getOpt(VideoPlayerUi.class).ifPresent(ui ->
                     ui.getBinding().surfaceView.setHeights(newHeight,
                             ui.isFullscreen() ? newHeight : maxHeight));
         }
@@ -1344,23 +1326,23 @@ public final class VideoDetailFragment
         binding.detailContentRootHiding.setVisibility(View.VISIBLE);
     }
 
-    protected void setInitialData(final int newServiceId,
-                                  @Nullable final String newUrl,
-                                  @NonNull final String newTitle,
-                                  @Nullable final PlayQueue newPlayQueue) {
+    private void setInitialData(final int newServiceId,
+                                @Nullable final String newUrl,
+                                @NonNull final String newTitle,
+                                @Nullable final PlayQueue newPlayQueue) {
         this.serviceId = newServiceId;
         this.url = newUrl;
         this.title = newTitle;
         this.playQueue = newPlayQueue;
     }
 
-    private void setErrorImage(final int imageResource) {
+    private void setErrorImage() {
         if (binding == null || activity == null) {
             return;
         }
 
         binding.detailThumbnailImageView.setImageDrawable(
-                AppCompatResources.getDrawable(requireContext(), imageResource));
+                AppCompatResources.getDrawable(requireContext(), R.drawable.not_available_monkey));
         animate(binding.detailThumbnailImageView, false, 0, AnimationType.ALPHA,
                 0, () -> animate(binding.detailThumbnailImageView, true, 500));
     }
@@ -1368,7 +1350,7 @@ public final class VideoDetailFragment
     @Override
     public void handleError() {
         super.handleError();
-        setErrorImage(R.drawable.not_available_monkey);
+        setErrorImage();
 
         if (binding.relatedItemsLayout != null) { // hide related streams for tablets
             binding.relatedItemsLayout.setVisibility(View.INVISIBLE);
@@ -1471,7 +1453,11 @@ public final class VideoDetailFragment
             }
         }
 
-        PicassoHelper.cancelTag(PICASSO_VIDEO_DETAILS_TAG);
+        CoilUtils.dispose(binding.detailThumbnailImageView);
+        CoilUtils.dispose(binding.detailSubChannelThumbnailView);
+        CoilUtils.dispose(binding.overlayThumbnail);
+        CoilUtils.dispose(binding.detailUploaderThumbnailView);
+
         binding.detailThumbnailImageView.setImageBitmap(null);
         binding.detailSubChannelThumbnailView.setImageBitmap(null);
     }
@@ -1562,8 +1548,8 @@ public final class VideoDetailFragment
         binding.detailSecondaryControlPanel.setVisibility(View.GONE);
 
         checkUpdateProgressInfo(info);
-        PicassoHelper.loadDetailsThumbnail(info.getThumbnails()).tag(PICASSO_VIDEO_DETAILS_TAG)
-                .into(binding.detailThumbnailImageView);
+        CoilHelper.INSTANCE.loadDetailsThumbnail(binding.detailThumbnailImageView,
+                info.getThumbnails());
         showMetaInfoInTextView(info.getMetaInfo(), binding.detailMetaInfoTextView,
                 binding.detailMetaInfoSeparator, disposables);
 
@@ -1613,8 +1599,8 @@ public final class VideoDetailFragment
             binding.detailUploaderTextView.setVisibility(View.GONE);
         }
 
-        PicassoHelper.loadAvatar(info.getUploaderAvatars()).tag(PICASSO_VIDEO_DETAILS_TAG)
-                .into(binding.detailSubChannelThumbnailView);
+        CoilHelper.INSTANCE.loadAvatar(binding.detailSubChannelThumbnailView,
+                info.getUploaderAvatars());
         binding.detailSubChannelThumbnailView.setVisibility(View.VISIBLE);
         binding.detailUploaderThumbnailView.setVisibility(View.GONE);
     }
@@ -1645,11 +1631,11 @@ public final class VideoDetailFragment
             binding.detailUploaderTextView.setVisibility(View.GONE);
         }
 
-        PicassoHelper.loadAvatar(info.getSubChannelAvatars()).tag(PICASSO_VIDEO_DETAILS_TAG)
-                .into(binding.detailSubChannelThumbnailView);
+        CoilHelper.INSTANCE.loadAvatar(binding.detailSubChannelThumbnailView,
+                info.getSubChannelAvatars());
         binding.detailSubChannelThumbnailView.setVisibility(View.VISIBLE);
-        PicassoHelper.loadAvatar(info.getUploaderAvatars()).tag(PICASSO_VIDEO_DETAILS_TAG)
-                .into(binding.detailUploaderThumbnailView);
+        CoilHelper.INSTANCE.loadAvatar(binding.detailUploaderThumbnailView,
+                info.getUploaderAvatars());
         binding.detailUploaderThumbnailView.setVisibility(View.VISIBLE);
     }
 
@@ -1779,16 +1765,14 @@ public final class VideoDetailFragment
                                  final PlaybackParameters parameters) {
         setOverlayPlayPauseImage(player != null && player.isPlaying());
 
-        switch (state) {
-            case Player.STATE_PLAYING:
-                if (binding.positionView.getAlpha() != 1.0f
-                        && player.getPlayQueue() != null
-                        && player.getPlayQueue().getItem() != null
-                        && player.getPlayQueue().getItem().getUrl().equals(url)) {
-                    animate(binding.positionView, true, 100);
-                    animate(binding.detailPositionView, true, 100);
-                }
-                break;
+        if (state == Player.STATE_PLAYING) {
+            if (binding.positionView.getAlpha() != 1.0f
+                    && player.getPlayQueue() != null
+                    && player.getPlayQueue().getItem() != null
+                    && player.getPlayQueue().getItem().getUrl().equals(url)) {
+                animate(binding.positionView, true, 100);
+                animate(binding.detailPositionView, true, 100);
+            }
         }
     }
 
@@ -1848,20 +1832,23 @@ public final class VideoDetailFragment
 
     @Override
     public void onServiceStopped() {
-        setOverlayPlayPauseImage(false);
-        if (currentInfo != null) {
-            updateOverlayData(currentInfo.getName(),
-                    currentInfo.getUploaderName(),
-                    currentInfo.getThumbnails());
+        // the binding could be null at this point, if the app is finishing
+        if (binding != null) {
+            setOverlayPlayPauseImage(false);
+            if (currentInfo != null) {
+                updateOverlayData(currentInfo.getName(),
+                        currentInfo.getUploaderName(),
+                        currentInfo.getThumbnails());
+            }
+            updateOverlayPlayQueueButtonVisibility();
         }
-        updateOverlayPlayQueueButtonVisibility();
     }
 
     @Override
     public void onFullscreenStateChanged(final boolean fullscreen) {
         setupBrightness();
         if (!isPlayerAndPlayerServiceAvailable()
-                || player.UIs().get(MainPlayerUi.class).isEmpty()
+                || player.UIs().getOpt(MainPlayerUi.class).isEmpty()
                 || getRoot().map(View::getParent).isEmpty()) {
             return;
         }
@@ -1890,7 +1877,7 @@ public final class VideoDetailFragment
         final boolean isLandscape = DeviceUtils.isLandscape(requireContext());
         if (DeviceUtils.isTablet(activity)
                 && (!globalScreenOrientationLocked(activity) || isLandscape)) {
-            player.UIs().get(MainPlayerUi.class).ifPresent(MainPlayerUi::toggleFullscreen);
+            player.UIs().getOpt(MainPlayerUi.class).ifPresent(MainPlayerUi::toggleFullscreen);
             return;
         }
 
@@ -1990,7 +1977,7 @@ public final class VideoDetailFragment
     }
 
     private boolean isFullscreen() {
-        return isPlayerAvailable() && player.UIs().get(VideoPlayerUi.class)
+        return isPlayerAvailable() && player.UIs().getOpt(VideoPlayerUi.class)
                 .map(VideoPlayerUi::isFullscreen).orElse(false);
     }
 
@@ -2067,7 +2054,7 @@ public final class VideoDetailFragment
             setAutoPlay(true);
         }
 
-        player.UIs().get(MainPlayerUi.class).ifPresent(MainPlayerUi::checkLandscape);
+        player.UIs().getOpt(MainPlayerUi.class).ifPresent(MainPlayerUi::checkLandscape);
         // Let's give a user time to look at video information page if video is not playing
         if (globalScreenOrientationLocked(activity) && !player.isPlaying()) {
             player.play();
@@ -2332,7 +2319,7 @@ public final class VideoDetailFragment
                                 && player.isPlaying()
                                 && !isFullscreen()
                                 && !DeviceUtils.isTablet(activity)) {
-                            player.UIs().get(MainPlayerUi.class)
+                            player.UIs().getOpt(MainPlayerUi.class)
                                     .ifPresent(MainPlayerUi::toggleFullscreen);
                         }
                         setOverlayLook(binding.appBarLayout, behavior, 1);
@@ -2346,7 +2333,7 @@ public final class VideoDetailFragment
                         // Re-enable clicks
                         setOverlayElementsClickable(true);
                         if (isPlayerAvailable()) {
-                            player.UIs().get(MainPlayerUi.class)
+                            player.UIs().getOpt(MainPlayerUi.class)
                                     .ifPresent(MainPlayerUi::closeItemsList);
                         }
                         setOverlayLook(binding.appBarLayout, behavior, 0);
@@ -2357,7 +2344,7 @@ public final class VideoDetailFragment
                             showSystemUi();
                         }
                         if (isPlayerAvailable()) {
-                            player.UIs().get(MainPlayerUi.class).ifPresent(ui -> {
+                            player.UIs().getOpt(MainPlayerUi.class).ifPresent(ui -> {
                                 if (ui.isControlsVisible()) {
                                     ui.hideControls(0, 0);
                                 }
@@ -2403,8 +2390,7 @@ public final class VideoDetailFragment
         binding.overlayTitleTextView.setText(isEmpty(overlayTitle) ? "" : overlayTitle);
         binding.overlayChannelTextView.setText(isEmpty(uploader) ? "" : uploader);
         binding.overlayThumbnail.setImageDrawable(null);
-        PicassoHelper.loadDetailsThumbnail(thumbnails).tag(PICASSO_VIDEO_DETAILS_TAG)
-                .into(binding.overlayThumbnail);
+        CoilHelper.INSTANCE.loadDetailsThumbnail(binding.overlayThumbnail, thumbnails);
     }
 
     private void setOverlayPlayPauseImage(final boolean playerIsPlaying) {
@@ -2445,8 +2431,8 @@ public final class VideoDetailFragment
         return player != null;
     }
 
-    boolean isPlayerServiceAvailable() {
-        return playerService != null;
+    boolean noPlayerServiceAvailable() {
+        return playerService == null;
     }
 
     boolean isPlayerAndPlayerServiceAvailable() {
@@ -2455,7 +2441,7 @@ public final class VideoDetailFragment
 
     public Optional<View> getRoot() {
         return Optional.ofNullable(player)
-                .flatMap(player1 -> player1.UIs().get(VideoPlayerUi.class))
+                .flatMap(player1 -> player1.UIs().getOpt(VideoPlayerUi.class))
                 .map(playerUi -> playerUi.getBinding().getRoot());
     }
 

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

@@ -10,7 +10,6 @@ import android.graphics.Color;
 import android.os.Bundle;
 import android.text.TextUtils;
 import android.util.Log;
-import android.util.TypedValue;
 import android.view.LayoutInflater;
 import android.view.Menu;
 import android.view.MenuInflater;
@@ -45,6 +44,8 @@ import org.schabi.newpipe.fragments.detail.TabAdapter;
 import org.schabi.newpipe.ktx.AnimationType;
 import org.schabi.newpipe.local.feed.notifications.NotificationHelper;
 import org.schabi.newpipe.local.subscription.SubscriptionManager;
+import org.schabi.newpipe.ui.emptystate.EmptyStateSpec;
+import org.schabi.newpipe.ui.emptystate.EmptyStateUtil;
 import org.schabi.newpipe.util.ChannelTabHelper;
 import org.schabi.newpipe.util.Constants;
 import org.schabi.newpipe.util.ExtractorHelper;
@@ -53,13 +54,14 @@ import org.schabi.newpipe.util.NavigationHelper;
 import org.schabi.newpipe.util.StateSaver;
 import org.schabi.newpipe.util.ThemeHelper;
 import org.schabi.newpipe.util.external_communication.ShareUtils;
+import org.schabi.newpipe.util.image.CoilHelper;
 import org.schabi.newpipe.util.image.ImageStrategy;
-import org.schabi.newpipe.util.image.PicassoHelper;
 
 import java.util.List;
 import java.util.Queue;
 import java.util.concurrent.TimeUnit;
 
+import coil3.util.CoilUtils;
 import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers;
 import io.reactivex.rxjava3.core.Observable;
 import io.reactivex.rxjava3.disposables.CompositeDisposable;
@@ -73,7 +75,6 @@ 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;
@@ -120,67 +121,6 @@ public class ChannelFragment extends BaseStateFragment<ChannelInfo>
     // LifeCycle
     //////////////////////////////////////////////////////////////////////////*/
 
-    @Override
-    public void onCreate(final Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        menuProvider = new MenuProvider() {
-            @Override
-            public void onCreateMenu(@NonNull final Menu menu,
-                                     @NonNull final MenuInflater inflater) {
-                inflater.inflate(R.menu.menu_channel, menu);
-
-                if (DEBUG) {
-                    Log.d(TAG, "onCreateOptionsMenu() called with: "
-                            + "menu = [" + menu + "], inflater = [" + inflater + "]");
-                }
-
-            }
-
-            @Override
-            public void onPrepareMenu(@NonNull final Menu menu) {
-                menuRssButton = menu.findItem(R.id.menu_item_rss);
-                menuNotifyButton = menu.findItem(R.id.menu_item_notify);
-                updateRssButton();
-                updateNotifyButton(channelSubscription);
-            }
-
-            @Override
-            public boolean onMenuItemSelected(@NonNull final MenuItem item) {
-                switch (item.getItemId()) {
-                    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());
-                        }
-                        break;
-                    case R.id.menu_item_openInBrowser:
-                        if (currentInfo != null) {
-                            ShareUtils.openUrlInBrowser(requireContext(),
-                                    currentInfo.getOriginalUrl());
-                        }
-                        break;
-                    case R.id.menu_item_share:
-                        if (currentInfo != null) {
-                            ShareUtils.shareText(requireContext(), name,
-                                    currentInfo.getOriginalUrl(), currentInfo.getAvatars());
-                        }
-                        break;
-                    default:
-                        return false;
-                }
-                return true;
-            }
-        };
-        activity.addMenuProvider(menuProvider);
-    }
-
     @Override
     public void onAttach(@NonNull final Context context) {
         super.onAttach(context);
@@ -195,10 +135,76 @@ public class ChannelFragment extends BaseStateFragment<ChannelInfo>
         return binding.getRoot();
     }
 
+    @Override
+    public void onViewCreated(@NonNull final View rootView, final Bundle savedInstanceState) {
+        super.onViewCreated(rootView, savedInstanceState);
+            menuProvider = new MenuProvider() {
+                @Override
+                public void onCreateMenu(@NonNull final Menu menu,
+                                         @NonNull final MenuInflater inflater) {
+                    inflater.inflate(R.menu.menu_channel, menu);
+
+                    if (DEBUG) {
+                        Log.d(TAG, "onCreateOptionsMenu() called with: "
+                                + "menu = [" + menu + "], inflater = [" + inflater + "]");
+                    }
+
+                }
+
+                @Override
+                public void onPrepareMenu(@NonNull final Menu menu) {
+                    menuRssButton = menu.findItem(R.id.menu_item_rss);
+                    menuNotifyButton = menu.findItem(R.id.menu_item_notify);
+                    updateRssButton();
+                    updateNotifyButton(channelSubscription);
+                }
+
+                @Override
+                public boolean onMenuItemSelected(@NonNull final MenuItem item) {
+                    switch (item.getItemId()) {
+                        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());
+                            }
+                            break;
+                        case R.id.menu_item_openInBrowser:
+                            if (currentInfo != null) {
+                                ShareUtils.openUrlInBrowser(requireContext(),
+                                        currentInfo.getOriginalUrl());
+                            }
+                            break;
+                        case R.id.menu_item_share:
+                            if (currentInfo != null) {
+                                ShareUtils.shareText(requireContext(), name,
+                                        currentInfo.getOriginalUrl(), currentInfo.getAvatars());
+                            }
+                            break;
+                        default:
+                            return false;
+                    }
+                    return true;
+                }
+            };
+            activity.addMenuProvider(menuProvider);
+    }
+
     @Override // called from onViewCreated in BaseFragment.onViewCreated
     protected void initViews(final View rootView, final Bundle savedInstanceState) {
         super.initViews(rootView, savedInstanceState);
 
+        EmptyStateUtil.setEmptyStateComposable(
+                binding.emptyStateView,
+                EmptyStateSpec.Companion.getContentNotSupported()
+        );
+
         tabAdapter = new TabAdapter(getChildFragmentManager());
         binding.viewPager.setAdapter(tabAdapter);
         binding.tabLayout.setupWithViewPager(binding.viewPager);
@@ -232,6 +238,14 @@ public class ChannelFragment extends BaseStateFragment<ChannelInfo>
         binding.subChannelTitleView.setOnClickListener(openSubChannel);
     }
 
+    @Override
+    public void onDestroyView() {
+        super.onDestroyView();
+        if (menuProvider != null) {
+            activity.removeMenuProvider(menuProvider);
+        }
+    }
+
     @Override
     public void onDestroy() {
         super.onDestroy();
@@ -240,7 +254,6 @@ public class ChannelFragment extends BaseStateFragment<ChannelInfo>
         }
         disposables.clear();
         binding = null;
-        activity.removeMenuProvider(menuProvider);
         menuProvider = null;
     }
 
@@ -576,7 +589,9 @@ public class ChannelFragment extends BaseStateFragment<ChannelInfo>
     @Override
     public void showLoading() {
         super.showLoading();
-        PicassoHelper.cancelTag(PICASSO_CHANNEL_TAG);
+        CoilUtils.dispose(binding.channelAvatarView);
+        CoilUtils.dispose(binding.channelBannerImage);
+        CoilUtils.dispose(binding.subChannelAvatarView);
         animate(binding.channelSubscribeButton, false, 100);
     }
 
@@ -587,17 +602,15 @@ public class ChannelFragment extends BaseStateFragment<ChannelInfo>
         setInitialData(result.getServiceId(), result.getOriginalUrl(), result.getName());
 
         if (ImageStrategy.shouldLoadImages() && !result.getBanners().isEmpty()) {
-            PicassoHelper.loadBanner(result.getBanners()).tag(PICASSO_CHANNEL_TAG)
-                    .into(binding.channelBannerImage);
+            CoilHelper.INSTANCE.loadBanner(binding.channelBannerImage, result.getBanners());
         } else {
             // do not waste space for the banner, if the user disabled images or there is not one
             binding.channelBannerImage.setImageDrawable(null);
         }
 
-        PicassoHelper.loadAvatar(result.getAvatars()).tag(PICASSO_CHANNEL_TAG)
-                .into(binding.channelAvatarView);
-        PicassoHelper.loadAvatar(result.getParentChannelAvatars()).tag(PICASSO_CHANNEL_TAG)
-                .into(binding.subChannelAvatarView);
+        CoilHelper.INSTANCE.loadAvatar(binding.channelAvatarView, result.getAvatars());
+        CoilHelper.INSTANCE.loadAvatar(binding.subChannelAvatarView,
+                result.getParentChannelAvatars());
 
         binding.channelTitleView.setText(result.getName());
         binding.channelSubscriberView.setVisibility(View.VISIBLE);
@@ -645,8 +658,6 @@ public class ChannelFragment extends BaseStateFragment<ChannelInfo>
             return;
         }
 
-        binding.errorContentNotSupported.setVisibility(View.VISIBLE);
-        binding.channelKaomoji.setText("(︶︹︺)");
-        binding.channelKaomoji.setTextSize(TypedValue.COMPLEX_UNIT_SP, 45f);
+        binding.emptyStateView.setVisibility(View.VISIBLE);
     }
 }

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

@@ -26,6 +26,7 @@ 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.ui.emptystate.EmptyStateUtil;
 import org.schabi.newpipe.util.ChannelTabHelper;
 import org.schabi.newpipe.util.ExtractorHelper;
 import org.schabi.newpipe.util.PlayButtonHelper;
@@ -79,6 +80,12 @@ public class ChannelTabFragment extends BaseListInfoFragment<InfoItem, ChannelTa
         return inflater.inflate(R.layout.fragment_channel_tab, container, false);
     }
 
+    @Override
+    public void onViewCreated(@NonNull final View rootView, final Bundle savedInstanceState) {
+        super.onViewCreated(rootView, savedInstanceState);
+        EmptyStateUtil.setEmptyStateComposable(rootView.findViewById(R.id.empty_state_view));
+    }
+
     @Override
     public void onDestroyView() {
         super.onDestroyView();

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

@@ -1,171 +0,0 @@
-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 com.evernote.android.state.State;
-
-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 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

@@ -1,22 +0,0 @@
-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

@@ -1,123 +0,0 @@
-package org.schabi.newpipe.fragments.list.comments;
-
-import android.os.Bundle;
-import android.view.LayoutInflater;
-import android.view.Menu;
-import android.view.MenuInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.TextView;
-
-import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
-
-import org.schabi.newpipe.R;
-import org.schabi.newpipe.error.UserAction;
-import org.schabi.newpipe.extractor.ListExtractor;
-import org.schabi.newpipe.extractor.comments.CommentsInfo;
-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.ktx.ViewUtils;
-import org.schabi.newpipe.util.ExtractorHelper;
-
-import io.reactivex.rxjava3.core.Single;
-import io.reactivex.rxjava3.disposables.CompositeDisposable;
-
-public class CommentsFragment extends BaseListInfoFragment<CommentsInfoItem, CommentsInfo> {
-    private final CompositeDisposable disposables = new CompositeDisposable();
-
-    private TextView emptyStateDesc;
-
-    public static CommentsFragment getInstance(final int serviceId, final String url,
-                                               final String name) {
-        final CommentsFragment instance = new CommentsFragment();
-        instance.setInitialData(serviceId, url, name);
-        return instance;
-    }
-
-    public CommentsFragment() {
-        super(UserAction.REQUESTED_COMMENTS);
-    }
-
-    @Override
-    protected void initViews(final View rootView, final Bundle savedInstanceState) {
-        super.initViews(rootView, savedInstanceState);
-
-        emptyStateDesc = rootView.findViewById(R.id.empty_state_desc);
-    }
-
-    /*//////////////////////////////////////////////////////////////////////////
-    // LifeCycle
-    //////////////////////////////////////////////////////////////////////////*/
-
-    @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 onDestroy() {
-        super.onDestroy();
-        disposables.clear();
-    }
-
-    /*//////////////////////////////////////////////////////////////////////////
-    // Load and handle
-    //////////////////////////////////////////////////////////////////////////*/
-
-    @Override
-    protected Single<ListExtractor.InfoItemsPage<CommentsInfoItem>> loadMoreItemsLogic() {
-        return ExtractorHelper.getMoreCommentItems(serviceId, currentInfo, currentNextPage);
-    }
-
-    @Override
-    protected Single<CommentsInfo> loadResult(final boolean forceLoad) {
-        return ExtractorHelper.getCommentsInfo(serviceId, url, forceLoad);
-    }
-
-    /*//////////////////////////////////////////////////////////////////////////
-    // Contract
-    //////////////////////////////////////////////////////////////////////////*/
-
-    @Override
-    public void handleResult(@NonNull final CommentsInfo result) {
-        super.handleResult(result);
-
-        emptyStateDesc.setText(
-                result.isCommentsDisabled()
-                        ? R.string.comments_are_disabled
-                        : R.string.no_comments);
-
-        ViewUtils.slideUp(requireView(), 120, 150, 0.06f);
-        disposables.clear();
-    }
-
-    /*//////////////////////////////////////////////////////////////////////////
-    // Utils
-    //////////////////////////////////////////////////////////////////////////*/
-
-    @Override
-    public void setTitle(final String title) { }
-
-    @Override
-    public void onCreateOptionsMenu(@NonNull final Menu menu,
-                                    @NonNull final MenuInflater inflater) { }
-
-    @Override
-    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/comments/CommentsFragment.kt

@@ -0,0 +1,34 @@
+package org.schabi.newpipe.fragments.list.comments
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.ViewGroup
+import androidx.compose.material3.Surface
+import androidx.core.os.bundleOf
+import androidx.fragment.app.Fragment
+import androidx.fragment.compose.content
+import org.schabi.newpipe.ui.components.video.comment.CommentSection
+import org.schabi.newpipe.ui.theme.AppTheme
+import org.schabi.newpipe.util.KEY_SERVICE_ID
+import org.schabi.newpipe.util.KEY_URL
+
+class CommentsFragment : Fragment() {
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ) = content {
+        AppTheme {
+            Surface {
+                CommentSection()
+            }
+        }
+    }
+
+    companion object {
+        @JvmStatic
+        fun getInstance(serviceId: Int, url: String?) = CommentsFragment().apply {
+            arguments = bundleOf(KEY_SERVICE_ID to serviceId, KEY_URL to url)
+        }
+    }
+}

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

@@ -53,7 +53,7 @@ import org.schabi.newpipe.util.Localization;
 import org.schabi.newpipe.util.NavigationHelper;
 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.image.CoilHelper;
 import org.schabi.newpipe.util.text.TextEllipsizer;
 
 import java.util.ArrayList;
@@ -62,6 +62,7 @@ import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.function.Supplier;
 import java.util.stream.Collectors;
 
+import coil3.util.CoilUtils;
 import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers;
 import io.reactivex.rxjava3.core.Flowable;
 import io.reactivex.rxjava3.core.Single;
@@ -71,8 +72,6 @@ import io.reactivex.rxjava3.disposables.Disposable;
 public class PlaylistFragment extends BaseListInfoFragment<StreamInfoItem, PlaylistInfo>
         implements PlaylistControlViewHolder {
 
-    private static final String PICASSO_PLAYLIST_TAG = "PICASSO_PLAYLIST_TAG";
-
     private CompositeDisposable disposables;
     private Subscription bookmarkReactor;
     private AtomicBoolean isBookmarkButtonReady;
@@ -276,7 +275,7 @@ public class PlaylistFragment extends BaseListInfoFragment<StreamInfoItem, Playl
         animate(headerBinding.getRoot(), false, 200);
         animateHideRecyclerViewAllowingScrolling(itemsList);
 
-        PicassoHelper.cancelTag(PICASSO_PLAYLIST_TAG);
+        CoilUtils.dispose(headerBinding.uploaderAvatarView);
         animate(headerBinding.uploaderLayout, false, 200);
     }
 
@@ -327,8 +326,8 @@ public class PlaylistFragment extends BaseListInfoFragment<StreamInfoItem, Playl
                     R.drawable.ic_radio)
             );
         } else {
-            PicassoHelper.loadAvatar(result.getUploaderAvatars()).tag(PICASSO_PLAYLIST_TAG)
-                    .into(headerBinding.uploaderAvatarView);
+            CoilHelper.INSTANCE.loadAvatar(headerBinding.uploaderAvatarView,
+                    result.getUploaderAvatars());
         }
 
         streamCount = result.getStreamCount();

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

@@ -64,6 +64,8 @@ import org.schabi.newpipe.ktx.AnimationType;
 import org.schabi.newpipe.ktx.ExceptionUtils;
 import org.schabi.newpipe.local.history.HistoryRecordManager;
 import org.schabi.newpipe.settings.NewPipeSettings;
+import org.schabi.newpipe.ui.emptystate.EmptyStateSpec;
+import org.schabi.newpipe.ui.emptystate.EmptyStateUtil;
 import org.schabi.newpipe.util.Constants;
 import org.schabi.newpipe.util.DeviceUtils;
 import org.schabi.newpipe.util.ExtractorHelper;
@@ -344,6 +346,10 @@ public class SearchFragment extends BaseListFragment<SearchInfo, ListExtractor.I
     protected void initViews(final View rootView, final Bundle savedInstanceState) {
         super.initViews(rootView, savedInstanceState);
 
+        EmptyStateUtil.setEmptyStateComposable(
+                searchBinding.emptyStateView,
+                EmptyStateSpec.Companion.getNoSearchResult());
+
         searchBinding.suggestionsList.setAdapter(suggestionListAdapter);
         // animations are just strange and useless, since the suggestions keep changing too much
         searchBinding.suggestionsList.setItemAnimator(null);

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

@@ -1,202 +0,0 @@
-package org.schabi.newpipe.fragments.list.videos;
-
-import android.content.SharedPreferences;
-import android.os.Bundle;
-import android.view.LayoutInflater;
-import android.view.Menu;
-import android.view.MenuInflater;
-import android.view.View;
-import android.view.ViewGroup;
-
-import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
-import androidx.fragment.app.Fragment;
-import androidx.preference.PreferenceManager;
-
-import org.schabi.newpipe.R;
-import org.schabi.newpipe.databinding.RelatedItemsHeaderBinding;
-import org.schabi.newpipe.error.UserAction;
-import org.schabi.newpipe.extractor.InfoItem;
-import org.schabi.newpipe.extractor.ListExtractor;
-import org.schabi.newpipe.extractor.stream.StreamInfo;
-import org.schabi.newpipe.extractor.stream.StreamInfoItem;
-import org.schabi.newpipe.fragments.list.BaseListInfoFragment;
-import org.schabi.newpipe.info_list.ItemViewMode;
-import org.schabi.newpipe.info_list.dialog.InfoItemDialog;
-import org.schabi.newpipe.ktx.ViewUtils;
-
-import java.io.Serializable;
-import java.util.function.Supplier;
-
-import io.reactivex.rxjava3.core.Single;
-
-public class RelatedItemsFragment extends BaseListInfoFragment<InfoItem, RelatedItemsInfo>
-        implements SharedPreferences.OnSharedPreferenceChangeListener {
-    private static final String INFO_KEY = "related_info_key";
-
-    private RelatedItemsInfo relatedItemsInfo;
-
-    /*//////////////////////////////////////////////////////////////////////////
-    // Views
-    //////////////////////////////////////////////////////////////////////////*/
-
-    private RelatedItemsHeaderBinding headerBinding;
-
-    public static RelatedItemsFragment getInstance(final StreamInfo info) {
-        final RelatedItemsFragment instance = new RelatedItemsFragment();
-        instance.setInitialData(info);
-        return instance;
-    }
-
-    public RelatedItemsFragment() {
-        super(UserAction.REQUESTED_STREAM);
-    }
-
-    /*//////////////////////////////////////////////////////////////////////////
-    // LifeCycle
-    //////////////////////////////////////////////////////////////////////////*/
-
-    @Override
-    public View onCreateView(@NonNull final LayoutInflater inflater,
-                             @Nullable final ViewGroup container,
-                             @Nullable final Bundle savedInstanceState) {
-        return inflater.inflate(R.layout.fragment_related_items, container, false);
-    }
-
-    @Override
-    public void onDestroyView() {
-        headerBinding = null;
-        super.onDestroyView();
-    }
-
-    @Override
-    protected Supplier<View> getListHeaderSupplier() {
-        if (relatedItemsInfo == null || relatedItemsInfo.getRelatedItems() == null) {
-            return null;
-        }
-
-        headerBinding = RelatedItemsHeaderBinding
-                .inflate(activity.getLayoutInflater(), itemsList, false);
-
-        final SharedPreferences pref = PreferenceManager
-                .getDefaultSharedPreferences(requireContext());
-        final boolean autoplay = pref.getBoolean(getString(R.string.auto_queue_key), false);
-        headerBinding.autoplaySwitch.setChecked(autoplay);
-        headerBinding.autoplaySwitch.setOnCheckedChangeListener((compoundButton, b) ->
-                PreferenceManager.getDefaultSharedPreferences(requireContext()).edit()
-                        .putBoolean(getString(R.string.auto_queue_key), b).apply());
-
-        return headerBinding::getRoot;
-    }
-
-    @Override
-    protected Single<ListExtractor.InfoItemsPage<InfoItem>> loadMoreItemsLogic() {
-        return Single.fromCallable(ListExtractor.InfoItemsPage::emptyPage);
-    }
-
-    /*//////////////////////////////////////////////////////////////////////////
-    // Contract
-    //////////////////////////////////////////////////////////////////////////*/
-
-    @Override
-    protected Single<RelatedItemsInfo> loadResult(final boolean forceLoad) {
-        return Single.fromCallable(() -> relatedItemsInfo);
-    }
-
-    @Override
-    public void showLoading() {
-        super.showLoading();
-        if (headerBinding != null) {
-            headerBinding.getRoot().setVisibility(View.INVISIBLE);
-        }
-    }
-
-    @Override
-    public void handleResult(@NonNull final RelatedItemsInfo result) {
-        super.handleResult(result);
-
-        if (headerBinding != null) {
-            headerBinding.getRoot().setVisibility(View.VISIBLE);
-        }
-        ViewUtils.slideUp(requireView(), 120, 96, 0.06f);
-
-    }
-
-    /*//////////////////////////////////////////////////////////////////////////
-    // Utils
-    //////////////////////////////////////////////////////////////////////////*/
-
-    @Override
-    public void setTitle(final String title) {
-        // Nothing to do - override parent
-    }
-
-    @Override
-    public void onCreateOptionsMenu(@NonNull final Menu menu,
-                                    @NonNull final MenuInflater inflater) {
-        // Nothing to do - override parent
-    }
-
-    private void setInitialData(final StreamInfo info) {
-        super.setInitialData(info.getServiceId(), info.getUrl(), info.getName());
-        if (this.relatedItemsInfo == null) {
-            this.relatedItemsInfo = new RelatedItemsInfo(info);
-        }
-    }
-
-    @Override
-    public void onSaveInstanceState(@NonNull final Bundle outState) {
-        super.onSaveInstanceState(outState);
-        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 RelatedItemsInfo) {
-            this.relatedItemsInfo = (RelatedItemsInfo) serializable;
-        }
-    }
-
-    @Override
-    public void onSharedPreferenceChanged(final SharedPreferences sharedPreferences,
-                                          final String key) {
-        if (headerBinding != null && getString(R.string.auto_queue_key).equals(key)) {
-            headerBinding.autoplaySwitch.setChecked(sharedPreferences.getBoolean(key, false));
-        }
-    }
-
-    @Override
-    protected ItemViewMode getItemViewMode() {
-        ItemViewMode mode = super.getItemViewMode();
-        // Only list mode is supported. Either List or card will be used.
-        if (mode != ItemViewMode.LIST && mode != ItemViewMode.CARD) {
-            mode = ItemViewMode.LIST;
-        }
-        return mode;
-    }
-
-    @Override
-    protected void showInfoItemDialog(final StreamInfoItem item) {
-        // Try and attach the InfoItemDialog to the parent fragment of the RelatedItemsFragment
-        // so that its context is not lost when the RelatedItemsFragment is reinitialized,
-        // e.g. when a new stream is loaded in a parent VideoDetailFragment.
-        final Fragment parentFragment = getParentFragment();
-        if (parentFragment != null) {
-            try {
-                new InfoItemDialog.Builder(
-                        parentFragment.getActivity(),
-                        parentFragment.getContext(),
-                        parentFragment,
-                        item
-                ).create().show();
-            } catch (final IllegalArgumentException e) {
-                InfoItemDialog.Builder.reportErrorDuringInitialization(e, item);
-            }
-        } else {
-            super.showInfoItemDialog(item);
-        }
-    }
-
-}

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

@@ -0,0 +1,35 @@
+package org.schabi.newpipe.fragments.list.videos
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.ViewGroup
+import androidx.compose.material3.Surface
+import androidx.core.os.bundleOf
+import androidx.fragment.app.Fragment
+import androidx.fragment.compose.content
+import org.schabi.newpipe.extractor.stream.StreamInfo
+import org.schabi.newpipe.ktx.serializable
+import org.schabi.newpipe.ui.components.video.RelatedItems
+import org.schabi.newpipe.ui.theme.AppTheme
+import org.schabi.newpipe.util.KEY_INFO
+
+class RelatedItemsFragment : Fragment() {
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ) = content {
+        AppTheme {
+            Surface {
+                RelatedItems(requireArguments().serializable<StreamInfo>(KEY_INFO)!!)
+            }
+        }
+    }
+
+    companion object {
+        @JvmStatic
+        fun getInstance(info: StreamInfo) = RelatedItemsFragment().apply {
+            arguments = bundleOf(KEY_INFO to info)
+        }
+    }
+}

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

@@ -1,22 +0,0 @@
-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

@@ -13,7 +13,6 @@ 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.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;
@@ -75,21 +74,16 @@ public class InfoItemBuilder {
     private InfoItemHolder holderFromInfoType(@NonNull final ViewGroup parent,
                                               @NonNull final InfoItem.InfoType infoType,
                                               final boolean useMiniVariant) {
-        switch (infoType) {
-            case STREAM:
-                return useMiniVariant ? new StreamMiniInfoItemHolder(this, parent)
-                        : new StreamInfoItemHolder(this, parent);
-            case CHANNEL:
-                return useMiniVariant ? new ChannelMiniInfoItemHolder(this, parent)
-                        : new ChannelInfoItemHolder(this, parent);
-            case PLAYLIST:
-                return useMiniVariant ? new PlaylistMiniInfoItemHolder(this, parent)
-                        : new PlaylistInfoItemHolder(this, parent);
-            case COMMENT:
-                return new CommentInfoItemHolder(this, parent);
-            default:
-                throw new RuntimeException("InfoType not expected = " + infoType.name());
-        }
+        return switch (infoType) {
+            case STREAM -> useMiniVariant ? new StreamMiniInfoItemHolder(this, parent)
+                    : new StreamInfoItemHolder(this, parent);
+            case CHANNEL -> useMiniVariant ? new ChannelMiniInfoItemHolder(this, parent)
+                    : new ChannelInfoItemHolder(this, parent);
+            case PLAYLIST -> useMiniVariant ? new PlaylistMiniInfoItemHolder(this, parent)
+                    : new PlaylistInfoItemHolder(this, parent);
+            case COMMENT ->
+                    throw new IllegalArgumentException("Comments should be rendered using Compose");
+        };
     }
 
     public Context getContext() {

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

@@ -21,7 +21,6 @@ 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.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;
@@ -283,46 +282,32 @@ public class InfoListAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolde
             Log.d(TAG, "onCreateViewHolder() called with: "
                     + "parent = [" + parent + "], type = [" + type + "]");
         }
-        switch (type) {
+        return switch (type) {
             // #4475 and #3368
             // Always create a new instance otherwise the same instance
             // is sometimes reused which causes a crash
-            case HEADER_TYPE:
-                return new HFHolder(headerSupplier.get());
-            case FOOTER_TYPE:
-                return new HFHolder(PignateFooterBinding
-                        .inflate(layoutInflater, parent, false)
-                        .getRoot()
-                );
-            case MINI_STREAM_HOLDER_TYPE:
-                return new StreamMiniInfoItemHolder(infoItemBuilder, parent);
-            case STREAM_HOLDER_TYPE:
-                return new StreamInfoItemHolder(infoItemBuilder, parent);
-            case GRID_STREAM_HOLDER_TYPE:
-                return new StreamGridInfoItemHolder(infoItemBuilder, parent);
-            case CARD_STREAM_HOLDER_TYPE:
-                return new StreamCardInfoItemHolder(infoItemBuilder, parent);
-            case MINI_CHANNEL_HOLDER_TYPE:
-                return new ChannelMiniInfoItemHolder(infoItemBuilder, parent);
-            case CHANNEL_HOLDER_TYPE:
-                return new ChannelInfoItemHolder(infoItemBuilder, parent);
-            case CARD_CHANNEL_HOLDER_TYPE:
-                return new ChannelCardInfoItemHolder(infoItemBuilder, parent);
-            case GRID_CHANNEL_HOLDER_TYPE:
-                return new ChannelGridInfoItemHolder(infoItemBuilder, parent);
-            case MINI_PLAYLIST_HOLDER_TYPE:
-                return new PlaylistMiniInfoItemHolder(infoItemBuilder, parent);
-            case PLAYLIST_HOLDER_TYPE:
-                return new PlaylistInfoItemHolder(infoItemBuilder, parent);
-            case GRID_PLAYLIST_HOLDER_TYPE:
-                return new PlaylistGridInfoItemHolder(infoItemBuilder, parent);
-            case CARD_PLAYLIST_HOLDER_TYPE:
-                return new PlaylistCardInfoItemHolder(infoItemBuilder, parent);
-            case COMMENT_HOLDER_TYPE:
-                return new CommentInfoItemHolder(infoItemBuilder, parent);
-            default:
-                return new FallbackViewHolder(new View(parent.getContext()));
-        }
+            case HEADER_TYPE -> new HFHolder(headerSupplier.get());
+            case FOOTER_TYPE -> new HFHolder(PignateFooterBinding
+                    .inflate(layoutInflater, parent, false)
+                    .getRoot()
+            );
+            case MINI_STREAM_HOLDER_TYPE -> new StreamMiniInfoItemHolder(infoItemBuilder, parent);
+            case STREAM_HOLDER_TYPE -> new StreamInfoItemHolder(infoItemBuilder, parent);
+            case GRID_STREAM_HOLDER_TYPE -> new StreamGridInfoItemHolder(infoItemBuilder, parent);
+            case CARD_STREAM_HOLDER_TYPE -> new StreamCardInfoItemHolder(infoItemBuilder, parent);
+            case MINI_CHANNEL_HOLDER_TYPE -> new ChannelMiniInfoItemHolder(infoItemBuilder, parent);
+            case CHANNEL_HOLDER_TYPE -> new ChannelInfoItemHolder(infoItemBuilder, parent);
+            case CARD_CHANNEL_HOLDER_TYPE -> new ChannelCardInfoItemHolder(infoItemBuilder, parent);
+            case GRID_CHANNEL_HOLDER_TYPE -> new ChannelGridInfoItemHolder(infoItemBuilder, parent);
+            case MINI_PLAYLIST_HOLDER_TYPE ->
+                    new PlaylistMiniInfoItemHolder(infoItemBuilder, parent);
+            case PLAYLIST_HOLDER_TYPE -> new PlaylistInfoItemHolder(infoItemBuilder, parent);
+            case GRID_PLAYLIST_HOLDER_TYPE ->
+                    new PlaylistGridInfoItemHolder(infoItemBuilder, parent);
+            case CARD_PLAYLIST_HOLDER_TYPE ->
+                    new PlaylistCardInfoItemHolder(infoItemBuilder, parent);
+            default -> new FallbackViewHolder(new View(parent.getContext()));
+        };
     }
 
     @Override

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

@@ -1,19 +1,18 @@
 package org.schabi.newpipe.info_list
 
 import android.view.View
-import android.widget.ImageView
-import android.widget.TextView
-import com.xwray.groupie.GroupieViewHolder
-import com.xwray.groupie.Item
+import com.xwray.groupie.viewbinding.BindableItem
+import com.xwray.groupie.viewbinding.GroupieViewHolder
 import org.schabi.newpipe.R
+import org.schabi.newpipe.databinding.ItemStreamSegmentBinding
 import org.schabi.newpipe.extractor.stream.StreamSegment
 import org.schabi.newpipe.util.Localization
-import org.schabi.newpipe.util.image.PicassoHelper
+import org.schabi.newpipe.util.image.CoilHelper
 
 class StreamSegmentItem(
     private val item: StreamSegment,
     private val onClick: StreamSegmentAdapter.StreamSegmentListener
-) : Item<GroupieViewHolder>() {
+) : BindableItem<ItemStreamSegmentBinding>() {
 
     companion object {
         const val PAYLOAD_SELECT = 1
@@ -21,31 +20,32 @@ class StreamSegmentItem(
 
     var isSelected = false
 
-    override fun bind(viewHolder: GroupieViewHolder, position: Int) {
-        item.previewUrl?.let {
-            PicassoHelper.loadThumbnail(it)
-                .into(viewHolder.root.findViewById<ImageView>(R.id.previewImage))
-        }
-        viewHolder.root.findViewById<TextView>(R.id.textViewTitle).text = item.title
+    override fun bind(viewBinding: ItemStreamSegmentBinding, position: Int) {
+        CoilHelper.loadThumbnail(viewBinding.previewImage, item.previewUrl)
+        viewBinding.textViewTitle.text = item.title
         if (item.channelName == null) {
-            viewHolder.root.findViewById<TextView>(R.id.textViewChannel).visibility = View.GONE
+            viewBinding.textViewChannel.visibility = View.GONE
             // When the channel name is displayed there is less space
             // and thus the segment title needs to be only one line height.
             // But when there is no channel name displayed, the title can be two lines long.
             // The default maxLines value is set to 1 to display all elements in the AS preview,
-            viewHolder.root.findViewById<TextView>(R.id.textViewTitle).maxLines = 2
+            viewBinding.textViewTitle.maxLines = 2
         } else {
-            viewHolder.root.findViewById<TextView>(R.id.textViewChannel).text = item.channelName
-            viewHolder.root.findViewById<TextView>(R.id.textViewChannel).visibility = View.VISIBLE
+            viewBinding.textViewChannel.text = item.channelName
+            viewBinding.textViewChannel.visibility = View.VISIBLE
         }
-        viewHolder.root.findViewById<TextView>(R.id.textViewStartSeconds).text =
+        viewBinding.textViewStartSeconds.text =
             Localization.getDurationString(item.startTimeSeconds.toLong())
-        viewHolder.root.setOnClickListener { onClick.onItemClick(this, item.startTimeSeconds) }
-        viewHolder.root.setOnLongClickListener { onClick.onItemLongClick(this, item.startTimeSeconds); true }
-        viewHolder.root.isSelected = isSelected
+        viewBinding.root.setOnClickListener { onClick.onItemClick(this, item.startTimeSeconds) }
+        viewBinding.root.setOnLongClickListener { onClick.onItemLongClick(this, item.startTimeSeconds); true }
+        viewBinding.root.isSelected = isSelected
     }
 
-    override fun bind(viewHolder: GroupieViewHolder, position: Int, payloads: MutableList<Any>) {
+    override fun bind(
+        viewHolder: GroupieViewHolder<ItemStreamSegmentBinding>,
+        position: Int,
+        payloads: MutableList<Any>
+    ) {
         if (payloads.contains(PAYLOAD_SELECT)) {
             viewHolder.root.isSelected = isSelected
             return
@@ -54,4 +54,6 @@ class StreamSegmentItem(
     }
 
     override fun getLayout() = R.layout.item_stream_segment
+
+    override fun initializeViewBinding(view: View) = ItemStreamSegmentBinding.bind(view)
 }

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

@@ -346,7 +346,7 @@ public final class InfoItemDialog {
 
         public static void reportErrorDuringInitialization(final Throwable throwable,
                                                            final InfoItem item) {
-            ErrorUtil.showSnackbar(App.getApp().getBaseContext(), new ErrorInfo(
+            ErrorUtil.showSnackbar(App.getInstance().getBaseContext(), new ErrorInfo(
                     throwable,
                     UserAction.OPEN_INFO_ITEM_DIALOG,
                     "none",

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

@@ -41,10 +41,11 @@ import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers;
  * </p>
  */
 public enum StreamDialogDefaultEntry {
-    SHOW_CHANNEL_DETAILS(R.string.show_channel_details, (fragment, item) ->
-            fetchUploaderUrlIfSparse(fragment.requireContext(), item.getServiceId(), item.getUrl(),
-                    item.getUploaderUrl(), url -> openChannelFragment(fragment, item, url))
-    ),
+    SHOW_CHANNEL_DETAILS(R.string.show_channel_details, (fragment, item) -> {
+        final var activity = fragment.requireActivity();
+        fetchUploaderUrlIfSparse(activity, item.getServiceId(), item.getUrl(),
+                item.getUploaderUrl(), url -> openChannelFragment(activity, item, url));
+    }),
 
     /**
      * Enqueues the stream automatically to the current PlayerType.

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

@@ -13,8 +13,8 @@ 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.image.PicassoHelper;
 import org.schabi.newpipe.util.Localization;
+import org.schabi.newpipe.util.image.CoilHelper;
 
 public class ChannelMiniInfoItemHolder extends InfoItemHolder {
     private final ImageView itemThumbnailView;
@@ -56,7 +56,7 @@ public class ChannelMiniInfoItemHolder extends InfoItemHolder {
             itemAdditionalDetailView.setText(getDetailLine(item));
         }
 
-        PicassoHelper.loadAvatar(item.getThumbnails()).into(itemThumbnailView);
+        CoilHelper.INSTANCE.loadAvatar(itemThumbnailView, item.getThumbnails());
 
         itemView.setOnClickListener(view -> {
             if (itemBuilder.getOnChannelSelectedListener() != null) {

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

@@ -1,210 +0,0 @@
-package org.schabi.newpipe.info_list.holder;
-
-import static org.schabi.newpipe.util.ServiceHelper.getServiceById;
-import static org.schabi.newpipe.util.text.TouchUtils.getOffsetForHorizontalLine;
-
-import android.text.Spanned;
-import android.text.method.LinkMovementMethod;
-import android.text.style.ClickableSpan;
-import android.text.style.URLSpan;
-import android.view.MotionEvent;
-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.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((v, event) -> {
-            final CharSequence text = itemContentView.getText();
-            if (text instanceof Spanned buffer) {
-                final int action = event.getAction();
-
-                if (action == MotionEvent.ACTION_UP || action == MotionEvent.ACTION_DOWN) {
-                    final int offset = getOffsetForHorizontalLine(itemContentView, event);
-                    final var links = buffer.getSpans(offset, offset, ClickableSpan.class);
-
-                    if (links.length != 0) {
-                        if (action == MotionEvent.ACTION_UP) {
-                            links[0].onClick(itemContentView);
-                        }
-                        // we handle events that intersect links, so return true
-                        return true;
-                    }
-                }
-            }
-            return false;
-        });
-
-        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/PlaylistMiniInfoItemHolder.java

@@ -9,8 +9,8 @@ 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.image.PicassoHelper;
 import org.schabi.newpipe.util.Localization;
+import org.schabi.newpipe.util.image.CoilHelper;
 
 public class PlaylistMiniInfoItemHolder extends InfoItemHolder {
     public final ImageView itemThumbnailView;
@@ -46,7 +46,7 @@ public class PlaylistMiniInfoItemHolder extends InfoItemHolder {
                 .localizeStreamCountMini(itemStreamCountView.getContext(), item.getStreamCount()));
         itemUploaderView.setText(item.getUploaderName());
 
-        PicassoHelper.loadPlaylistThumbnail(item.getThumbnails()).into(itemThumbnailView);
+        CoilHelper.INSTANCE.loadPlaylistThumbnail(itemThumbnailView, item.getThumbnails());
 
         itemView.setOnClickListener(view -> {
             if (itemBuilder.getOnPlaylistSelectedListener() != null) {

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

@@ -16,8 +16,8 @@ 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.image.PicassoHelper;
 import org.schabi.newpipe.util.StreamTypeUtil;
+import org.schabi.newpipe.util.image.CoilHelper;
 import org.schabi.newpipe.views.AnimatedProgressBar;
 
 import java.util.concurrent.TimeUnit;
@@ -64,8 +64,7 @@ public class StreamMiniInfoItemHolder extends InfoItemHolder {
             StreamStateEntity state2 = null;
             if (DependentPreferenceHelper
                     .getPositionsInListsEnabled(itemProgressView.getContext())) {
-                state2 = historyRecordManager.loadStreamState(infoItem)
-                        .blockingGet()[0];
+                state2 = historyRecordManager.loadStreamState(infoItem).blockingGet();
             }
             if (state2 != null) {
                 itemProgressView.setVisibility(View.VISIBLE);
@@ -87,7 +86,7 @@ public class StreamMiniInfoItemHolder extends InfoItemHolder {
         }
 
         // Default thumbnail is shown on error, while loading and if the url is empty
-        PicassoHelper.loadThumbnail(item.getThumbnails()).into(itemThumbnailView);
+        CoilHelper.INSTANCE.loadThumbnail(itemThumbnailView, item.getThumbnails());
 
         itemView.setOnClickListener(view -> {
             if (itemBuilder.getOnStreamSelectedListener() != null) {
@@ -120,7 +119,7 @@ public class StreamMiniInfoItemHolder extends InfoItemHolder {
         if (DependentPreferenceHelper.getPositionsInListsEnabled(itemProgressView.getContext())) {
             state = historyRecordManager
                     .loadStreamState(infoItem)
-                    .blockingGet()[0];
+                    .blockingGet();
         }
         if (state != null && item.getDuration() > 0
                 && !StreamTypeUtil.isLiveStream(item.getStreamType())) {

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

@@ -0,0 +1,13 @@
+package org.schabi.newpipe.ktx
+
+import android.graphics.Bitmap
+import android.graphics.Rect
+import androidx.core.graphics.BitmapCompat
+
+@Suppress("NOTHING_TO_INLINE")
+inline fun Bitmap.scale(
+    width: Int,
+    height: Int,
+    srcRect: Rect? = null,
+    scaleInLinearSpace: Boolean = true,
+) = BitmapCompat.createScaledBitmap(this, width, height, srcRect, scaleInLinearSpace)

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

@@ -1,9 +1,22 @@
 package org.schabi.newpipe.ktx
 
 import android.os.Bundle
-import android.os.Parcelable
 import androidx.core.os.BundleCompat
+import java.io.Serializable
 
-inline fun <reified T : Parcelable> Bundle.parcelableArrayList(key: String?): ArrayList<T>? {
-    return BundleCompat.getParcelableArrayList(this, key, T::class.java)
+inline fun <reified T : Serializable> Bundle.serializable(key: String?): T? {
+    return BundleCompat.getSerializable(this, key, T::class.java)
+}
+
+fun Bundle?.toDebugString(): String {
+    if (this == null) {
+        return "null"
+    }
+    val string = StringBuilder("Bundle{")
+    for (key in this.keySet()) {
+        @Suppress("DEPRECATION") // we want this[key] to return items of any type
+        string.append(" ").append(key).append(" => ").append(this[key]).append(";")
+    }
+    string.append(" }")
+    return string.toString()
 }

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

@@ -0,0 +1,13 @@
+package org.schabi.newpipe.ktx
+
+import android.content.Context
+import android.content.ContextWrapper
+import androidx.fragment.app.FragmentActivity
+
+tailrec fun Context.findFragmentActivity(): FragmentActivity {
+    return when (this) {
+        is FragmentActivity -> this
+        is ContextWrapper -> baseContext.findFragmentActivity()
+        else -> throw IllegalStateException("Unable to find FragmentActivity")
+    }
+}

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

@@ -17,8 +17,10 @@ import androidx.core.view.isGone
 import androidx.core.view.isInvisible
 import androidx.core.view.isVisible
 import androidx.interpolator.view.animation.FastOutSlowInInterpolator
-import org.schabi.newpipe.MainActivity
 
+// logs in this class are disabled by default since it's usually not useful,
+// you can enable them by setting this flag to MainActivity.DEBUG
+private const val DEBUG = false
 private const val TAG = "ViewUtils"
 
 /**
@@ -38,7 +40,7 @@ fun View.animate(
     delay: Long = 0,
     execOnEnd: Runnable? = null
 ) {
-    if (MainActivity.DEBUG) {
+    if (DEBUG) {
         val id = try {
             resources.getResourceEntryName(id)
         } catch (e: Exception) {
@@ -51,7 +53,7 @@ fun View.animate(
         Log.d(TAG, "animate(): $msg")
     }
     if (isVisible && enterOrExit) {
-        if (MainActivity.DEBUG) {
+        if (DEBUG) {
             Log.d(TAG, "animate(): view was already visible > view = [$this]")
         }
         animate().setListener(null).cancel()
@@ -60,7 +62,7 @@ fun View.animate(
         execOnEnd?.run()
         return
     } else if ((isGone || isInvisible) && !enterOrExit) {
-        if (MainActivity.DEBUG) {
+        if (DEBUG) {
             Log.d(TAG, "animate(): view was already gone > view = [$this]")
         }
         animate().setListener(null).cancel()
@@ -89,7 +91,7 @@ fun View.animate(
  * @param colorEnd   the background color to end with
  */
 fun View.animateBackgroundColor(duration: Long, @ColorInt colorStart: Int, @ColorInt colorEnd: Int) {
-    if (MainActivity.DEBUG) {
+    if (DEBUG) {
         Log.d(
             TAG,
             "animateBackgroundColor() called with: view = [$this], duration = [$duration], " +
@@ -109,7 +111,7 @@ fun View.animateBackgroundColor(duration: Long, @ColorInt colorStart: Int, @Colo
 }
 
 fun View.animateHeight(duration: Long, targetHeight: Int): ValueAnimator {
-    if (MainActivity.DEBUG) {
+    if (DEBUG) {
         Log.d(TAG, "animateHeight: duration = [$duration], from $height to → $targetHeight in: $this")
     }
     val animator = ValueAnimator.ofFloat(height.toFloat(), targetHeight.toFloat())
@@ -127,7 +129,7 @@ fun View.animateHeight(duration: Long, targetHeight: Int): ValueAnimator {
 }
 
 fun View.animateRotation(duration: Long, targetRotation: Int) {
-    if (MainActivity.DEBUG) {
+    if (DEBUG) {
         Log.d(TAG, "animateRotation: duration = [$duration], from $rotation to → $targetRotation in: $this")
     }
     animate().setListener(null).cancel()

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

@@ -194,9 +194,6 @@ public abstract class BaseLocalListFragment<I, N> extends BaseStateFragment<I>
         if (itemsList != null) {
             animateHideRecyclerViewAllowingScrolling(itemsList);
         }
-        if (headerRootBinding != null) {
-            animate(headerRootBinding.getRoot(), false, 200);
-        }
     }
 
     @Override
@@ -205,9 +202,6 @@ public abstract class BaseLocalListFragment<I, N> extends BaseStateFragment<I>
         if (itemsList != null) {
             animate(itemsList, true, 200);
         }
-        if (headerRootBinding != null) {
-            animate(headerRootBinding.getRoot(), true, 200);
-        }
     }
 
     @Override
@@ -253,9 +247,6 @@ public abstract class BaseLocalListFragment<I, N> extends BaseStateFragment<I>
         if (itemsList != null) {
             animateHideRecyclerViewAllowingScrolling(itemsList);
         }
-        if (headerRootBinding != null) {
-            animate(headerRootBinding.getRoot(), false, 200);
-        }
     }
 
     @Override

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

@@ -38,6 +38,8 @@ 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.ui.emptystate.EmptyStateSpec;
+import org.schabi.newpipe.ui.emptystate.EmptyStateUtil;
 import org.schabi.newpipe.util.NavigationHelper;
 import org.schabi.newpipe.util.OnClickGesture;
 import org.schabi.newpipe.util.debounce.DebounceSavable;
@@ -123,6 +125,10 @@ public final class BookmarkFragment extends BaseLocalListFragment<List<PlaylistL
         super.initViews(rootView, savedInstanceState);
 
         itemListAdapter.setUseItemHandle(true);
+        EmptyStateUtil.setEmptyStateComposable(
+                rootView.findViewById(R.id.empty_state_view),
+                EmptyStateSpec.Companion.getNoBookmarkedPlaylist()
+        );
     }
 
     @Override

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

@@ -74,6 +74,7 @@ import org.schabi.newpipe.ktx.slideUp
 import org.schabi.newpipe.local.feed.item.StreamItem
 import org.schabi.newpipe.local.feed.service.FeedLoadService
 import org.schabi.newpipe.local.subscription.SubscriptionManager
+import org.schabi.newpipe.ui.emptystate.setEmptyStateComposable
 import org.schabi.newpipe.util.DeviceUtils
 import org.schabi.newpipe.util.Localization
 import org.schabi.newpipe.util.NavigationHelper
@@ -132,6 +133,7 @@ class FeedFragment : BaseStateFragment<FeedState>() {
     override fun onViewCreated(rootView: View, savedInstanceState: Bundle?) {
         // super.onViewCreated() calls initListeners() which require the binding to be initialized
         _feedBinding = FragmentFeedBinding.bind(rootView)
+        feedBinding.emptyStateView.setEmptyStateComposable()
         super.onViewCreated(rootView, savedInstanceState)
 
         val factory = FeedViewModel.getFactory(requireContext(), groupId)
@@ -202,6 +204,7 @@ class FeedFragment : BaseStateFragment<FeedState>() {
     // Menu
     // /////////////////////////////////////////////////////////////////////////
 
+    @Deprecated("Deprecated in Java")
     override fun onCreateOptionsMenu(menu: Menu, inflater: MenuInflater) {
         super.onCreateOptionsMenu(menu, inflater)
 
@@ -212,6 +215,7 @@ class FeedFragment : BaseStateFragment<FeedState>() {
         inflater.inflate(R.menu.menu_feed_fragment, menu)
     }
 
+    @Deprecated("Deprecated in Java")
     override fun onOptionsItemSelected(item: MenuItem): Boolean {
         if (item.itemId == R.id.menu_item_feed_help) {
             val sharedPreferences = PreferenceManager.getDefaultSharedPreferences(requireContext())
@@ -253,7 +257,7 @@ class FeedFragment : BaseStateFragment<FeedState>() {
             viewModel.getShowFutureItemsFromPreferences()
         )
 
-        AlertDialog.Builder(context!!)
+        AlertDialog.Builder(requireContext())
             .setTitle(R.string.feed_hide_streams_title)
             .setMultiChoiceItems(dialogItems, checkedDialogItems) { _, which, isChecked ->
                 checkedDialogItems[which] = isChecked
@@ -267,6 +271,7 @@ class FeedFragment : BaseStateFragment<FeedState>() {
             .show()
     }
 
+    @Deprecated("Deprecated in Java")
     override fun onDestroyOptionsMenu() {
         super.onDestroyOptionsMenu()
         activity?.supportActionBar?.subtitle = null

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

@@ -165,7 +165,7 @@ class FeedViewModel(
         fun getFactory(context: Context, groupId: Long) = viewModelFactory {
             initializer {
                 FeedViewModel(
-                    App.getApp(),
+                    App.instance,
                     groupId,
                     // Read initial value from preferences
                     getShowPlayedItemsFromPreferences(context.applicationContext),

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

@@ -19,7 +19,7 @@ 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.StreamTypeUtil
-import org.schabi.newpipe.util.image.PicassoHelper
+import org.schabi.newpipe.util.image.CoilHelper
 import java.util.concurrent.TimeUnit
 import java.util.function.Consumer
 
@@ -101,7 +101,7 @@ data class StreamItem(
             viewBinding.itemProgressView.visibility = View.GONE
         }
 
-        PicassoHelper.loadThumbnail(stream.thumbnailUrl).into(viewBinding.itemThumbnailView)
+        CoilHelper.loadThumbnail(viewBinding.itemThumbnailView, stream.thumbnailUrl)
 
         if (itemVersion != ItemVersion.MINI) {
             viewBinding.itemAdditionalDetails.text =

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

@@ -6,7 +6,6 @@ import android.app.PendingIntent
 import android.content.Context
 import android.content.Intent
 import android.graphics.Bitmap
-import android.graphics.drawable.Drawable
 import android.net.Uri
 import android.os.Build
 import android.provider.Settings
@@ -16,20 +15,17 @@ 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.NavigationHelper
-import org.schabi.newpipe.util.image.PicassoHelper
+import org.schabi.newpipe.util.image.CoilHelper
 
 /**
  * Helper for everything related to show notifications about new streams to the user.
  */
 class NotificationHelper(val context: Context) {
     private val manager = NotificationManagerCompat.from(context)
-    private val iconLoadingTargets = ArrayList<Target>()
 
     /**
      * Show notifications for new streams from a single channel. The individual notifications are
@@ -68,51 +64,22 @@ class NotificationHelper(val context: Context) {
         summaryBuilder.setStyle(style)
 
         // open the channel page when clicking on the summary notification
+        val intent = NavigationHelper
+            .getChannelIntent(context, data.serviceId, data.url)
+            .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
         summaryBuilder.setContentIntent(
-            PendingIntentCompat.getActivity(
-                context,
-                data.pseudoId,
-                NavigationHelper
-                    .getChannelIntent(context, data.serviceId, data.url)
-                    .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK),
-                0,
-                false
-            )
+            PendingIntentCompat.getActivity(context, data.pseudoId, intent, 0, false)
         )
 
-        // a Target is like a listener for image loading events
-        val target = object : Target {
-            override fun onBitmapLoaded(bitmap: Bitmap, from: Picasso.LoadedFrom) {
-                // set channel icon only if there is actually one (for Android versions < 7.0)
-                summaryBuilder.setLargeIcon(bitmap)
+        val avatarIcon =
+            CoilHelper.loadBitmapBlocking(context, data.avatarUrl, R.drawable.ic_newpipe_triangle_white)
 
-                // 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())
+        summaryBuilder.setLargeIcon(avatarIcon)
 
-                iconLoadingTargets.remove(this) // allow it to be garbage-collected
-            }
-
-            override fun onBitmapFailed(e: Exception, errorDrawable: Drawable) {
-                // 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
-            }
-
-            override fun onPrepareLoad(placeHolderDrawable: Drawable) {
-                // Nothing to do
-            }
-        }
-
-        // add the target to the list to hold a strong reference and prevent it from being garbage
-        // collected, since Picasso only holds weak references to targets
-        iconLoadingTargets.add(target)
-
-        PicassoHelper.loadNotificationIcon(data.avatarUrl).into(target)
+        // Show individual stream notifications, set channel icon only if there is actually one
+        showStreamNotifications(newStreams, data.serviceId, avatarIcon)
+        // Show summary notification
+        manager.notify(data.pseudoId, summaryBuilder.build())
     }
 
     private fun showStreamNotifications(

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

@@ -18,10 +18,13 @@ package org.schabi.newpipe.local.history;
  * along with NewPipe.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+import static org.schabi.newpipe.util.ExtractorHelper.getStreamInfo;
+
 import android.content.Context;
 import android.content.SharedPreferences;
 
 import androidx.annotation.NonNull;
+import androidx.collection.LongLongPair;
 import androidx.preference.PreferenceManager;
 
 import org.schabi.newpipe.NewPipeDatabase;
@@ -45,7 +48,6 @@ import org.schabi.newpipe.extractor.stream.StreamInfo;
 import org.schabi.newpipe.extractor.stream.StreamInfoItem;
 import org.schabi.newpipe.local.feed.FeedViewModel;
 import org.schabi.newpipe.player.playqueue.PlayQueueItem;
-import org.schabi.newpipe.util.ExtractorHelper;
 
 import java.time.OffsetDateTime;
 import java.time.ZoneOffset;
@@ -91,47 +93,39 @@ public class HistoryRecordManager {
      * @param info the item to mark as watched
      * @return a Maybe containing the ID of the item if successful
      */
-    public Maybe<Long> markAsWatched(final StreamInfoItem info) {
+    public Completable markAsWatched(final StreamInfoItem info) {
         if (!isStreamHistoryEnabled()) {
-            return Maybe.empty();
+            return Completable.complete();
         }
 
-        final OffsetDateTime currentTime = OffsetDateTime.now(ZoneOffset.UTC);
-        return Maybe.fromCallable(() -> database.runInTransaction(() -> {
-            final long streamId;
-            final long duration;
-            // Duration will not exist if the item was loaded with fast mode, so fetch it if empty
-            if (info.getDuration() < 0) {
-                final StreamInfo completeInfo = ExtractorHelper.getStreamInfo(
-                        info.getServiceId(),
-                        info.getUrl(),
-                        false
+        final var remoteInfo = getStreamInfo(info.getServiceId(), info.getUrl(), false)
+            .map(item ->
+                new LongLongPair(item.getDuration(), streamTable.upsert(new StreamEntity(item))));
+
+        return Single.just(info)
+                .filter(item -> item.getDuration() >= 0)
+                .map(item ->
+                    new LongLongPair(item.getDuration(), streamTable.upsert(new StreamEntity(item)))
                 )
-                        .subscribeOn(Schedulers.io())
-                        .blockingGet();
-                duration = completeInfo.getDuration();
-                streamId = streamTable.upsert(new StreamEntity(completeInfo));
-            } else {
-                duration = info.getDuration();
-                streamId = streamTable.upsert(new StreamEntity(info));
-            }
+                .switchIfEmpty(remoteInfo)
+                .flatMapCompletable(pair -> Completable.fromRunnable(() -> {
+                    final long duration = pair.getFirst();
+                    final long streamId = pair.getSecond();
 
-            // Update the stream progress to the full duration of the video
-            final StreamStateEntity entity = new StreamStateEntity(
-                    streamId,
-                    duration * 1000
-            );
-            streamStateTable.upsert(entity);
+                    // Update the stream progress to the full duration of the video
+                    final var entity = new StreamStateEntity(streamId, duration * 1000);
+                    streamStateTable.upsert(entity);
 
-            // Add a history entry
-            final StreamHistoryEntity latestEntry = streamHistoryTable.getLatestEntry(streamId);
-            if (latestEntry == null) {
-                // never actually viewed: add history entry but with 0 views
-                return streamHistoryTable.insert(new StreamHistoryEntity(streamId, currentTime, 0));
-            } else {
-                return 0L;
-            }
-        })).subscribeOn(Schedulers.io());
+                    // Add a history entry
+                    final var latestEntry = streamHistoryTable.getLatestEntry(streamId);
+                    if (latestEntry == null) {
+                        final var currentTime = OffsetDateTime.now(ZoneOffset.UTC);
+                        // never actually viewed: add history entry but with 0 views
+                        final var entry = new StreamHistoryEntity(streamId, currentTime, 0);
+                        streamHistoryTable.insert(entry);
+                    }
+                }))
+                .subscribeOn(Schedulers.io());
     }
 
     public Maybe<Long> onViewed(final StreamInfo info) {
@@ -221,7 +215,7 @@ public class HistoryRecordManager {
     public Flowable<List<String>> getRelatedSearches(final String query,
                                                      final int similarQueryLimit,
                                                      final int uniqueQueryLimit) {
-        return query.length() > 0
+        return !query.isEmpty()
                 ? searchHistoryTable.getSimilarEntries(query, similarQueryLimit)
                 : searchHistoryTable.getUniqueEntries(uniqueQueryLimit);
     }
@@ -236,47 +230,31 @@ public class HistoryRecordManager {
 
     public Maybe<StreamStateEntity> loadStreamState(final PlayQueueItem queueItem) {
         return queueItem.getStream()
-                .map(info -> streamTable.upsert(new StreamEntity(info)))
-                .flatMapPublisher(streamStateTable::getState)
-                .firstElement()
-                .flatMap(list -> list.isEmpty() ? Maybe.empty() : Maybe.just(list.get(0)))
+                .flatMapMaybe(this::loadStreamState)
                 .filter(state -> state.isValid(queueItem.getDuration()))
                 .subscribeOn(Schedulers.io());
     }
 
     public Maybe<StreamStateEntity> loadStreamState(final StreamInfo info) {
         return Single.fromCallable(() -> streamTable.upsert(new StreamEntity(info)))
-                .flatMapPublisher(streamStateTable::getState)
-                .firstElement()
-                .flatMap(list -> list.isEmpty() ? Maybe.empty() : Maybe.just(list.get(0)))
-                .filter(state -> state.isValid(info.getDuration()))
+                .flatMapMaybe(streamStateTable::getState)
                 .subscribeOn(Schedulers.io());
     }
 
     public Completable saveStreamState(@NonNull final StreamInfo info, final long progressMillis) {
         return Completable.fromAction(() -> database.runInTransaction(() -> {
             final long streamId = streamTable.upsert(new StreamEntity(info));
-            final StreamStateEntity state = new StreamStateEntity(streamId, progressMillis);
+            final var state = new StreamStateEntity(streamId, progressMillis);
             if (state.isValid(info.getDuration())) {
                 streamStateTable.upsert(state);
             }
         })).subscribeOn(Schedulers.io());
     }
 
-    public Single<StreamStateEntity[]> loadStreamState(final InfoItem info) {
-        return Single.fromCallable(() -> {
-            final List<StreamEntity> entities = streamTable
-                    .getStream(info.getServiceId(), info.getUrl()).blockingFirst();
-            if (entities.isEmpty()) {
-                return new StreamStateEntity[]{null};
-            }
-            final List<StreamStateEntity> states = streamStateTable
-                    .getState(entities.get(0).getUid()).blockingFirst();
-            if (states.isEmpty()) {
-                return new StreamStateEntity[]{null};
-            }
-            return new StreamStateEntity[]{states.get(0)};
-        }).subscribeOn(Schedulers.io());
+    public Maybe<StreamStateEntity> loadStreamState(final InfoItem info) {
+        return streamTable.getStream(info.getServiceId(), info.getUrl())
+                .flatMap(entity -> streamStateTable.getState(entity.getUid()))
+                .subscribeOn(Schedulers.io());
     }
 
     public Single<List<StreamStateEntity>> loadLocalStreamStateBatch(
@@ -295,13 +273,7 @@ public class HistoryRecordManager {
                     result.add(null);
                     continue;
                 }
-                final List<StreamStateEntity> states = streamStateTable.getState(streamId)
-                        .blockingFirst();
-                if (states.isEmpty()) {
-                    result.add(null);
-                } else {
-                    result.add(states.get(0));
-                }
+                result.add(streamStateTable.getState(streamId).blockingGet());
             }
             return result;
         }).subscribeOn(Schedulers.io());

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

@@ -8,8 +8,8 @@ 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.image.PicassoHelper;
 import org.schabi.newpipe.util.Localization;
+import org.schabi.newpipe.util.image.CoilHelper;
 
 import java.time.format.DateTimeFormatter;
 
@@ -30,17 +30,16 @@ public class LocalPlaylistItemHolder extends PlaylistItemHolder {
     public void updateFromItem(final LocalItem localItem,
                                final HistoryRecordManager historyRecordManager,
                                final DateTimeFormatter dateTimeFormatter) {
-        if (!(localItem instanceof PlaylistMetadataEntry)) {
+        if (!(localItem instanceof PlaylistMetadataEntry item)) {
             return;
         }
-        final PlaylistMetadataEntry item = (PlaylistMetadataEntry) localItem;
 
         itemTitleView.setText(item.name);
         itemStreamCountView.setText(Localization.localizeStreamCountMini(
                 itemStreamCountView.getContext(), item.streamCount));
         itemUploaderView.setVisibility(View.INVISIBLE);
 
-        PicassoHelper.loadPlaylistThumbnail(item.thumbnailUrl).into(itemThumbnailView);
+        CoilHelper.INSTANCE.loadPlaylistThumbnail(itemThumbnailView, item.thumbnailUrl);
 
         if (item instanceof PlaylistDuplicatesEntry
                 && ((PlaylistDuplicatesEntry) item).timesStreamIsContained > 0) {

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

@@ -16,8 +16,8 @@ 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.image.PicassoHelper;
 import org.schabi.newpipe.util.ServiceHelper;
+import org.schabi.newpipe.util.image.CoilHelper;
 import org.schabi.newpipe.views.AnimatedProgressBar;
 
 import java.time.format.DateTimeFormatter;
@@ -83,8 +83,8 @@ public class LocalPlaylistStreamItemHolder extends LocalItemHolder {
         }
 
         // Default thumbnail is shown on error, while loading and if the url is empty
-        PicassoHelper.loadThumbnail(item.getStreamEntity().getThumbnailUrl())
-                .into(itemThumbnailView);
+        CoilHelper.INSTANCE.loadThumbnail(itemThumbnailView,
+                item.getStreamEntity().getThumbnailUrl());
 
         itemView.setOnClickListener(view -> {
             if (itemBuilder.getOnItemSelectedListener() != null) {

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

@@ -16,8 +16,8 @@ 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.image.PicassoHelper;
 import org.schabi.newpipe.util.ServiceHelper;
+import org.schabi.newpipe.util.image.CoilHelper;
 import org.schabi.newpipe.views.AnimatedProgressBar;
 
 import java.time.format.DateTimeFormatter;
@@ -117,8 +117,8 @@ public class LocalStatisticStreamItemHolder extends LocalItemHolder {
         }
 
         // Default thumbnail is shown on error, while loading and if the url is empty
-        PicassoHelper.loadThumbnail(item.getStreamEntity().getThumbnailUrl())
-                .into(itemThumbnailView);
+        CoilHelper.INSTANCE.loadThumbnail(itemThumbnailView,
+                item.getStreamEntity().getThumbnailUrl());
 
         itemView.setOnClickListener(view -> {
             if (itemBuilder.getOnItemSelectedListener() != null) {

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

@@ -8,8 +8,8 @@ import org.schabi.newpipe.database.playlist.model.PlaylistRemoteEntity;
 import org.schabi.newpipe.local.LocalItemBuilder;
 import org.schabi.newpipe.local.history.HistoryRecordManager;
 import org.schabi.newpipe.util.Localization;
-import org.schabi.newpipe.util.image.PicassoHelper;
 import org.schabi.newpipe.util.ServiceHelper;
+import org.schabi.newpipe.util.image.CoilHelper;
 
 import java.time.format.DateTimeFormatter;
 
@@ -29,10 +29,9 @@ public class RemotePlaylistItemHolder extends PlaylistItemHolder {
     public void updateFromItem(final LocalItem localItem,
                                final HistoryRecordManager historyRecordManager,
                                final DateTimeFormatter dateTimeFormatter) {
-        if (!(localItem instanceof PlaylistRemoteEntity)) {
+        if (!(localItem instanceof PlaylistRemoteEntity item)) {
             return;
         }
-        final PlaylistRemoteEntity item = (PlaylistRemoteEntity) localItem;
 
         itemTitleView.setText(item.getName());
         itemStreamCountView.setText(Localization.localizeStreamCountMini(
@@ -45,7 +44,7 @@ public class RemotePlaylistItemHolder extends PlaylistItemHolder {
             itemUploaderView.setText(ServiceHelper.getNameOfServiceById(item.getServiceId()));
         }
 
-        PicassoHelper.loadPlaylistThumbnail(item.getThumbnailUrl()).into(itemThumbnailView);
+        CoilHelper.INSTANCE.loadPlaylistThumbnail(itemThumbnailView, item.getThumbnailUrl());
 
         super.updateFromItem(localItem, historyRecordManager, dateTimeFormatter);
     }

app/src/main/java/org/schabi/newpipe/local/playlist/ExportPlaylist.kt

@@ -0,0 +1,72 @@
+package org.schabi.newpipe.local.playlist
+
+import android.content.Context
+import org.schabi.newpipe.R
+import org.schabi.newpipe.database.playlist.PlaylistStreamEntry
+import org.schabi.newpipe.extractor.exceptions.ParsingException
+import org.schabi.newpipe.extractor.services.youtube.linkHandler.YoutubeStreamLinkHandlerFactory
+import org.schabi.newpipe.local.playlist.PlayListShareMode.JUST_URLS
+import org.schabi.newpipe.local.playlist.PlayListShareMode.WITH_TITLES
+import org.schabi.newpipe.local.playlist.PlayListShareMode.YOUTUBE_TEMP_PLAYLIST
+
+fun export(
+    shareMode: PlayListShareMode,
+    playlist: List<PlaylistStreamEntry>,
+    context: Context
+): String {
+    return when (shareMode) {
+        WITH_TITLES -> exportWithTitles(playlist, context)
+        JUST_URLS -> exportJustUrls(playlist)
+        YOUTUBE_TEMP_PLAYLIST -> exportAsYoutubeTempPlaylist(playlist)
+    }
+}
+
+fun exportWithTitles(
+    playlist: List<PlaylistStreamEntry>,
+    context: Context
+): String {
+
+    return playlist.asSequence()
+        .map { it.streamEntity }
+        .map { entity ->
+            context.getString(
+                R.string.video_details_list_item,
+                entity.title,
+                entity.url
+            )
+        }
+        .joinToString(separator = "\n")
+}
+
+fun exportJustUrls(playlist: List<PlaylistStreamEntry>): String {
+
+    return playlist.asSequence()
+        .map { it.streamEntity.url }
+        .joinToString(separator = "\n")
+}
+
+fun exportAsYoutubeTempPlaylist(playlist: List<PlaylistStreamEntry>): String {
+
+    val videoIDs = playlist.asReversed().asSequence()
+        .map { it.streamEntity.url }
+        .mapNotNull(::getYouTubeId)
+        .take(50) // YouTube limitation: temp playlists can't have more than 50 items
+        .toList()
+        .asReversed()
+        .joinToString(separator = ",")
+
+    return "https://www.youtube.com/watch_videos?video_ids=$videoIDs"
+}
+
+val linkHandler: YoutubeStreamLinkHandlerFactory = YoutubeStreamLinkHandlerFactory.getInstance()
+
+/**
+ * Gets the video id from a YouTube URL.
+ *
+ * @param url YouTube URL
+ * @return the video id
+ */
+fun getYouTubeId(url: String): String? {
+
+    return try { linkHandler.getId(url) } catch (e: ParsingException) { null }
+}

app/src/main/java/org/schabi/newpipe/local/playlist/LocalPlaylistFragment.java

@@ -2,8 +2,13 @@ package org.schabi.newpipe.local.playlist;
 
 import static org.schabi.newpipe.error.ErrorUtil.showUiErrorSnackbar;
 import static org.schabi.newpipe.ktx.ViewUtils.animate;
+import static org.schabi.newpipe.local.playlist.ExportPlaylistKt.export;
+import static org.schabi.newpipe.local.playlist.PlayListShareMode.JUST_URLS;
+import static org.schabi.newpipe.local.playlist.PlayListShareMode.WITH_TITLES;
+import static org.schabi.newpipe.local.playlist.PlayListShareMode.YOUTUBE_TEMP_PLAYLIST;
 import static org.schabi.newpipe.util.ThemeHelper.shouldUseGridLayout;
 
+
 import android.content.Context;
 import android.os.Bundle;
 import android.os.Parcelable;
@@ -27,7 +32,6 @@ import androidx.recyclerview.widget.RecyclerView;
 import androidx.viewbinding.ViewBinding;
 
 import com.evernote.android.state.State;
-
 import org.reactivestreams.Subscriber;
 import org.reactivestreams.Subscription;
 import org.schabi.newpipe.NewPipeDatabase;
@@ -385,34 +389,41 @@ public class LocalPlaylistFragment extends BaseLocalListFragment<List<PlaylistSt
     }
 
     /**
-     * Shares the playlist as a list of stream URLs if {@code shouldSharePlaylistDetails} is
-     * set to {@code false}. Shares the playlist name along with a list of video titles and URLs
-     * if {@code shouldSharePlaylistDetails} is set to {@code true}.
+     * Shares the playlist in one of 3 ways, depending on the value of {@code shareMode}:
+     * <ul>
+     *     <li>{@code JUST_URLS}: shares the URLs only.</li>
+     *     <li>{@code WITH_TITLES}: each entry in the list is accompanied by its title.</li>
+     *     <li>{@code YOUTUBE_TEMP_PLAYLIST}: shares as a YouTube temporary playlist.</li>
+     * </ul>
      *
-     * @param shouldSharePlaylistDetails Whether the playlist details should be included in the
-     *                                   shared content.
+     * @param shareMode The way the playlist should be shared.
      */
-    private void sharePlaylist(final boolean shouldSharePlaylistDetails) {
+    private void sharePlaylist(final PlayListShareMode shareMode) {
         final Context context = requireContext();
 
         disposables.add(playlistManager.getPlaylistStreams(playlistId)
-                .flatMapSingle(playlist -> Single.just(playlist.stream()
-                        .map(PlaylistStreamEntry::getStreamEntity)
-                        .map(streamEntity -> {
-                            if (shouldSharePlaylistDetails) {
-                                return context.getString(R.string.video_details_list_item,
-                                        streamEntity.getTitle(), streamEntity.getUrl());
-                            } else {
-                                return streamEntity.getUrl();
-                            }
-                        })
-                        .collect(Collectors.joining("\n"))))
-                .observeOn(AndroidSchedulers.mainThread())
-                .subscribe(urlsText -> ShareUtils.shareText(
-                                context, name, shouldSharePlaylistDetails
-                                        ? context.getString(R.string.share_playlist_content_details,
-                                        name, urlsText) : urlsText),
-                        throwable -> showUiErrorSnackbar(this, "Sharing playlist", throwable)));
+            .flatMapSingle(playlist -> Single.just(export(
+
+                shareMode,
+                playlist,
+                context
+            )))
+            .observeOn(AndroidSchedulers.mainThread())
+            .subscribe(
+                urlsText -> {
+
+                    final String content = shareMode == WITH_TITLES
+                        ? context.getString(R.string.share_playlist_content_details,
+                                            name,
+                                            urlsText
+                                           )
+                        : urlsText;
+
+                    ShareUtils.shareText(context, name, content);
+                },
+                throwable -> showUiErrorSnackbar(this, "Sharing playlist", throwable)
+            )
+        );
     }
 
     public void removeWatchedStreams(final boolean removePartiallyWatched) {
@@ -872,13 +883,15 @@ public class LocalPlaylistFragment extends BaseLocalListFragment<List<PlaylistSt
     private void createShareConfirmationDialog() {
         new AlertDialog.Builder(requireContext())
                 .setTitle(R.string.share_playlist)
-                .setMessage(R.string.share_playlist_with_titles_message)
                 .setCancelable(true)
                 .setPositiveButton(R.string.share_playlist_with_titles, (dialog, which) ->
-                    sharePlaylist(/* shouldSharePlaylistDetails= */ true)
+                    sharePlaylist(WITH_TITLES)
+                )
+                .setNeutralButton(R.string.share_playlist_as_youtube_temporary_playlist,
+                    (dialog, which) -> sharePlaylist(YOUTUBE_TEMP_PLAYLIST)
                 )
                 .setNegativeButton(R.string.share_playlist_with_list, (dialog, which) ->
-                    sharePlaylist(/* shouldSharePlaylistDetails= */ false)
+                    sharePlaylist(JUST_URLS)
                 )
                 .show();
     }

app/src/main/java/org/schabi/newpipe/local/playlist/PlayListShareMode.java

@@ -0,0 +1,8 @@
+package org.schabi.newpipe.local.playlist;
+
+public enum PlayListShareMode {
+
+    JUST_URLS,
+    WITH_TITLES,
+    YOUTUBE_TEMP_PLAYLIST
+}

app/src/main/java/org/schabi/newpipe/local/playlist/RemotePlaylistManager.java

@@ -26,6 +26,10 @@ public class RemotePlaylistManager {
         return playlistRemoteTable.getPlaylists().subscribeOn(Schedulers.io());
     }
 
+    public Flowable<PlaylistRemoteEntity> getPlaylist(final long playlistId) {
+        return playlistRemoteTable.getPlaylist(playlistId).subscribeOn(Schedulers.io());
+    }
+
     public Flowable<List<PlaylistRemoteEntity>> getPlaylist(final PlaylistInfo info) {
         return playlistRemoteTable.getPlaylist(info.getServiceId(), info.getUrl())
                 .subscribeOn(Schedulers.io());

app/src/main/java/org/schabi/newpipe/local/subscription/SubscriptionFragment.kt

@@ -56,6 +56,7 @@ import org.schabi.newpipe.local.subscription.services.SubscriptionsImportService
 import org.schabi.newpipe.local.subscription.services.SubscriptionsImportService.PREVIOUS_EXPORT_MODE
 import org.schabi.newpipe.streams.io.NoFileManagerSafeGuard
 import org.schabi.newpipe.streams.io.StoredFileHelper
+import org.schabi.newpipe.ui.emptystate.setEmptyStateComposable
 import org.schabi.newpipe.util.NavigationHelper
 import org.schabi.newpipe.util.OnClickGesture
 import org.schabi.newpipe.util.ServiceHelper
@@ -129,6 +130,7 @@ class SubscriptionFragment : BaseStateFragment<SubscriptionState>() {
     // Menu
     // ////////////////////////////////////////////////////////////////////////
 
+    @Deprecated("Deprecated in Java")
     override fun onCreateOptionsMenu(menu: Menu, inflater: MenuInflater) {
         super.onCreateOptionsMenu(menu, inflater)
 
@@ -256,6 +258,8 @@ class SubscriptionFragment : BaseStateFragment<SubscriptionState>() {
         binding.itemsList.adapter = groupAdapter
         binding.itemsList.itemAnimator = null
 
+        binding.emptyStateView.setEmptyStateComposable()
+
         viewModel = ViewModelProvider(this)[SubscriptionViewModel::class.java]
         viewModel.stateLiveData.observe(viewLifecycleOwner) { it?.let(this::handleResult) }
         viewModel.feedGroupsLiveData.observe(viewLifecycleOwner) {

app/src/main/java/org/schabi/newpipe/local/subscription/dialog/FeedGroupDialog.kt

@@ -94,6 +94,7 @@ class FeedGroupDialog : DialogFragment(), BackPressable {
 
     override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
         return object : Dialog(requireActivity(), theme) {
+            @Deprecated("Deprecated in Java")
             override fun onBackPressed() {
                 if (!this@FeedGroupDialog.onBackPressed()) {
                     super.onBackPressed()

app/src/main/java/org/schabi/newpipe/local/subscription/item/ChannelItem.kt

@@ -9,7 +9,7 @@ import org.schabi.newpipe.R
 import org.schabi.newpipe.extractor.channel.ChannelInfoItem
 import org.schabi.newpipe.util.Localization
 import org.schabi.newpipe.util.OnClickGesture
-import org.schabi.newpipe.util.image.PicassoHelper
+import org.schabi.newpipe.util.image.CoilHelper
 
 class ChannelItem(
     private val infoItem: ChannelInfoItem,
@@ -39,7 +39,7 @@ class ChannelItem(
             itemChannelDescriptionView.text = infoItem.description
         }
 
-        PicassoHelper.loadAvatar(infoItem.thumbnails).into(itemThumbnailView)
+        CoilHelper.loadAvatar(itemThumbnailView, infoItem.thumbnails)
 
         gesturesListener?.run {
             viewHolder.root.setOnClickListener { selected(infoItem) }

app/src/main/java/org/schabi/newpipe/local/subscription/item/ImportSubscriptionsHintPlaceholderItem.kt

@@ -3,14 +3,18 @@ package org.schabi.newpipe.local.subscription.item
 import android.view.View
 import com.xwray.groupie.viewbinding.BindableItem
 import org.schabi.newpipe.R
-import org.schabi.newpipe.databinding.ListEmptyViewBinding
+import org.schabi.newpipe.databinding.ListEmptyViewSubscriptionsBinding
+import org.schabi.newpipe.ui.emptystate.EmptyStateSpec
+import org.schabi.newpipe.ui.emptystate.setEmptyStateComposable
 
 /**
  * When there are no subscriptions, show a hint to the user about how to import subscriptions
  */
-class ImportSubscriptionsHintPlaceholderItem : BindableItem<ListEmptyViewBinding>() {
+class ImportSubscriptionsHintPlaceholderItem : BindableItem<ListEmptyViewSubscriptionsBinding>() {
     override fun getLayout(): Int = R.layout.list_empty_view_subscriptions
-    override fun bind(viewBinding: ListEmptyViewBinding, position: Int) {}
+    override fun bind(viewBinding: ListEmptyViewSubscriptionsBinding, position: Int) {
+        viewBinding.root.setEmptyStateComposable(EmptyStateSpec.NoSubscriptionsHint)
+    }
     override fun getSpanSize(spanCount: Int, position: Int): Int = spanCount
-    override fun initializeViewBinding(view: View) = ListEmptyViewBinding.bind(view)
+    override fun initializeViewBinding(view: View) = ListEmptyViewSubscriptionsBinding.bind(view)
 }

app/src/main/java/org/schabi/newpipe/local/subscription/item/PickerSubscriptionItem.kt

@@ -10,7 +10,7 @@ import org.schabi.newpipe.database.subscription.SubscriptionEntity
 import org.schabi.newpipe.databinding.PickerSubscriptionItemBinding
 import org.schabi.newpipe.ktx.AnimationType
 import org.schabi.newpipe.ktx.animate
-import org.schabi.newpipe.util.image.PicassoHelper
+import org.schabi.newpipe.util.image.CoilHelper
 
 data class PickerSubscriptionItem(
     val subscriptionEntity: SubscriptionEntity,
@@ -21,7 +21,7 @@ data class PickerSubscriptionItem(
     override fun getSpanSize(spanCount: Int, position: Int): Int = 1
 
     override fun bind(viewBinding: PickerSubscriptionItemBinding, position: Int) {
-        PicassoHelper.loadAvatar(subscriptionEntity.avatarUrl).into(viewBinding.thumbnailView)
+        CoilHelper.loadAvatar(viewBinding.thumbnailView, subscriptionEntity.avatarUrl)
         viewBinding.titleView.text = subscriptionEntity.name
         viewBinding.selectedHighlight.isVisible = isSelected
     }

app/src/main/java/org/schabi/newpipe/paging/CommentRepliesSource.kt

@@ -0,0 +1,27 @@
+package org.schabi.newpipe.paging
+
+import androidx.paging.PagingSource
+import androidx.paging.PagingState
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
+import org.schabi.newpipe.extractor.NewPipe
+import org.schabi.newpipe.extractor.Page
+import org.schabi.newpipe.extractor.comments.CommentsInfo
+import org.schabi.newpipe.extractor.comments.CommentsInfoItem
+
+class CommentRepliesSource(
+    private val commentInfo: CommentsInfoItem,
+) : PagingSource<Page, CommentsInfoItem>() {
+    private val service = NewPipe.getService(commentInfo.serviceId)
+
+    override suspend fun load(params: LoadParams<Page>): LoadResult<Page, CommentsInfoItem> {
+        // params.key is null the first time load() is called, and we need to return the first page
+        val repliesPage = params.key ?: commentInfo.replies
+        val info = withContext(Dispatchers.IO) {
+            CommentsInfo.getMoreItems(service, commentInfo.url, repliesPage)
+        }
+        return LoadResult.Page(info.items, null, info.nextPage)
+    }
+
+    override fun getRefreshKey(state: PagingState<Page, CommentsInfoItem>) = null
+}

app/src/main/java/org/schabi/newpipe/paging/CommentsSource.kt

@@ -0,0 +1,30 @@
+package org.schabi.newpipe.paging
+
+import androidx.paging.PagingSource
+import androidx.paging.PagingState
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
+import org.schabi.newpipe.extractor.NewPipe
+import org.schabi.newpipe.extractor.Page
+import org.schabi.newpipe.extractor.comments.CommentsInfo
+import org.schabi.newpipe.extractor.comments.CommentsInfoItem
+import org.schabi.newpipe.ui.components.video.comment.CommentInfo
+
+class CommentsSource(private val commentInfo: CommentInfo) : PagingSource<Page, CommentsInfoItem>() {
+    private val service = NewPipe.getService(commentInfo.serviceId)
+
+    override suspend fun load(params: LoadParams<Page>): LoadResult<Page, CommentsInfoItem> {
+        // params.key is null the first time the load() function is called, so we need to return the
+        // first batch of already-loaded comments
+        if (params.key == null) {
+            return LoadResult.Page(commentInfo.comments, null, commentInfo.nextPage)
+        } else {
+            val info = withContext(Dispatchers.IO) {
+                CommentsInfo.getMoreItems(service, commentInfo.url, params.key)
+            }
+            return LoadResult.Page(info.items, null, info.nextPage)
+        }
+    }
+
+    override fun getRefreshKey(state: PagingState<Page, CommentsInfoItem>) = null
+}

app/src/main/java/org/schabi/newpipe/player/PlayQueueActivity.java

@@ -183,7 +183,10 @@ public final class PlayQueueActivity extends AppCompatActivity
     ////////////////////////////////////////////////////////////////////////////
 
     private void bind() {
+        // Note: this code should not really exist, and PlayerHolder should be used instead, but
+        // it will be rewritten when NewPlayer will replace the current player.
         final Intent bindIntent = new Intent(this, PlayerService.class);
+        bindIntent.setAction(PlayerService.BIND_PLAYER_HOLDER_ACTION);
         final boolean success = bindService(bindIntent, serviceConnection, BIND_AUTO_CREATE);
         if (!success) {
             unbindService(serviceConnection);
@@ -221,7 +224,7 @@ public final class PlayQueueActivity extends AppCompatActivity
                 Log.d(TAG, "Player service is connected");
 
                 if (service instanceof PlayerService.LocalBinder) {
-                    player = ((PlayerService.LocalBinder) service).getPlayer();
+                    player = ((PlayerService.LocalBinder) service).getService().getPlayer();
                 }
 
                 if (player == null || player.getPlayQueue() == null || player.exoPlayerIsNull()) {

app/src/main/java/org/schabi/newpipe/player/Player.java

@@ -46,6 +46,7 @@ import static org.schabi.newpipe.util.ListHelper.getPopupResolutionIndex;
 import static org.schabi.newpipe.util.ListHelper.getResolutionIndex;
 import static org.schabi.newpipe.util.Localization.assureCorrectAppLanguage;
 import static java.util.concurrent.TimeUnit.MILLISECONDS;
+import static coil3.Image_androidKt.toBitmap;
 
 import android.content.BroadcastReceiver;
 import android.content.Context;
@@ -53,8 +54,8 @@ import android.content.Intent;
 import android.content.IntentFilter;
 import android.content.SharedPreferences;
 import android.graphics.Bitmap;
-import android.graphics.drawable.Drawable;
 import android.media.AudioManager;
+import android.support.v4.media.session.MediaSessionCompat;
 import android.util.Log;
 import android.view.LayoutInflater;
 
@@ -71,14 +72,13 @@ import com.google.android.exoplayer2.PlaybackParameters;
 import com.google.android.exoplayer2.Player.PositionInfo;
 import com.google.android.exoplayer2.Timeline;
 import com.google.android.exoplayer2.Tracks;
+import com.google.android.exoplayer2.ext.mediasession.MediaSessionConnector;
 import com.google.android.exoplayer2.source.MediaSource;
 import com.google.android.exoplayer2.text.CueGroup;
 import com.google.android.exoplayer2.trackselection.DefaultTrackSelector;
 import com.google.android.exoplayer2.trackselection.MappingTrackSelector;
 import com.google.android.exoplayer2.upstream.DefaultBandwidthMeter;
 import com.google.android.exoplayer2.video.VideoSize;
-import com.squareup.picasso.Picasso;
-import com.squareup.picasso.Target;
 
 import org.schabi.newpipe.MainActivity;
 import org.schabi.newpipe.R;
@@ -86,8 +86,8 @@ import org.schabi.newpipe.databinding.PlayerBinding;
 import org.schabi.newpipe.error.ErrorInfo;
 import org.schabi.newpipe.error.ErrorUtil;
 import org.schabi.newpipe.error.UserAction;
-import org.schabi.newpipe.extractor.stream.AudioStream;
 import org.schabi.newpipe.extractor.Image;
+import org.schabi.newpipe.extractor.stream.AudioStream;
 import org.schabi.newpipe.extractor.stream.StreamInfo;
 import org.schabi.newpipe.extractor.stream.StreamType;
 import org.schabi.newpipe.extractor.stream.VideoStream;
@@ -118,14 +118,15 @@ import org.schabi.newpipe.player.ui.VideoPlayerUi;
 import org.schabi.newpipe.util.DependentPreferenceHelper;
 import org.schabi.newpipe.util.ListHelper;
 import org.schabi.newpipe.util.NavigationHelper;
-import org.schabi.newpipe.util.image.PicassoHelper;
 import org.schabi.newpipe.util.SerializedCache;
 import org.schabi.newpipe.util.StreamTypeUtil;
+import org.schabi.newpipe.util.image.CoilHelper;
 
 import java.util.List;
 import java.util.Optional;
 import java.util.stream.IntStream;
 
+import coil3.target.Target;
 import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers;
 import io.reactivex.rxjava3.core.Observable;
 import io.reactivex.rxjava3.disposables.CompositeDisposable;
@@ -174,7 +175,6 @@ public final class Player implements PlaybackListener, Listener {
     //////////////////////////////////////////////////////////////////////////*/
 
     public static final int RENDERER_UNAVAILABLE = -1;
-    private static final String PICASSO_PLAYER_THUMBNAIL_TAG = "PICASSO_PLAYER_THUMBNAIL_TAG";
 
     /*//////////////////////////////////////////////////////////////////////////
     // Playback
@@ -193,6 +193,8 @@ public final class Player implements PlaybackListener, Listener {
     private MediaItemTag currentMetadata;
     @Nullable
     private Bitmap currentThumbnail;
+    @Nullable
+    private coil3.request.Disposable thumbnailDisposable;
 
     /*//////////////////////////////////////////////////////////////////////////
     // Player
@@ -246,12 +248,6 @@ public final class Player implements PlaybackListener, Listener {
     @NonNull
     private final CompositeDisposable databaseUpdateDisposable = new CompositeDisposable();
 
-    // This is the only listener we need for thumbnail loading, since there is always at most only
-    // one thumbnail being loaded at a time. This field is also here to maintain a strong reference,
-    // which would otherwise be garbage collected since Picasso holds weak references to targets.
-    @NonNull
-    private final Target currentThumbnailTarget;
-
     /*//////////////////////////////////////////////////////////////////////////
     // Utils
     //////////////////////////////////////////////////////////////////////////*/
@@ -269,7 +265,16 @@ public final class Player implements PlaybackListener, Listener {
     //////////////////////////////////////////////////////////////////////////*/
     //region Constructor
 
-    public Player(@NonNull final PlayerService service) {
+    /**
+     * @param service the service this player resides in
+     * @param mediaSession used to build the {@link MediaSessionPlayerUi}, lives in the service and
+     *                     could possibly be reused with multiple player instances
+     * @param sessionConnector used to build the {@link MediaSessionPlayerUi}, lives in the service
+     *                         and could possibly be reused with multiple player instances
+     */
+    public Player(@NonNull final PlayerService service,
+                  @NonNull final MediaSessionCompat mediaSession,
+                  @NonNull final MediaSessionConnector sessionConnector) {
         this.service = service;
         context = service;
         prefs = PreferenceManager.getDefaultSharedPreferences(context);
@@ -295,14 +300,12 @@ public final class Player implements PlaybackListener, Listener {
         videoResolver = new VideoPlaybackResolver(context, dataSource, getQualityResolver());
         audioResolver = new AudioPlaybackResolver(context, dataSource);
 
-        currentThumbnailTarget = getCurrentThumbnailTarget();
-
         // The UIs added here should always be present. They will be initialized when the player
         // reaches the initialization step. Make sure the media session ui is before the
         // notification ui in the UIs list, since the notification depends on the media session in
         // PlayerUi#initPlayer(), and UIs.call() guarantees UI order is preserved.
         UIs = new PlayerUiList(
-                new MediaSessionPlayerUi(this),
+                new MediaSessionPlayerUi(this, mediaSession, sessionConnector),
                 new NotificationPlayerUi(this)
         );
     }
@@ -470,14 +473,15 @@ public final class Player implements PlaybackListener, Listener {
     }
 
     private void initUIsForCurrentPlayerType() {
-        if ((UIs.get(MainPlayerUi.class).isPresent() && playerType == PlayerType.MAIN)
-                || (UIs.get(PopupPlayerUi.class).isPresent() && playerType == PlayerType.POPUP)) {
+        if ((UIs.getOpt(MainPlayerUi.class).isPresent() && playerType == PlayerType.MAIN)
+                || (UIs.getOpt(PopupPlayerUi.class).isPresent()
+                    && playerType == PlayerType.POPUP)) {
             // correct UI already in place
             return;
         }
 
         // try to reuse binding if possible
-        final PlayerBinding binding = UIs.get(VideoPlayerUi.class).map(VideoPlayerUi::getBinding)
+        final PlayerBinding binding = UIs.getOpt(VideoPlayerUi.class).map(VideoPlayerUi::getBinding)
                 .orElseGet(() -> {
                     if (playerType == PlayerType.AUDIO) {
                         return null;
@@ -488,15 +492,15 @@ public final class Player implements PlaybackListener, Listener {
 
         switch (playerType) {
             case MAIN:
-                UIs.destroyAll(PopupPlayerUi.class);
+                UIs.destroyAllOfType(PopupPlayerUi.class);
                 UIs.addAndPrepare(new MainPlayerUi(this, binding));
                 break;
             case POPUP:
-                UIs.destroyAll(MainPlayerUi.class);
+                UIs.destroyAllOfType(MainPlayerUi.class);
                 UIs.addAndPrepare(new PopupPlayerUi(this, binding));
                 break;
             case AUDIO:
-                UIs.destroyAll(VideoPlayerUi.class);
+                UIs.destroyAllOfType(VideoPlayerUi.class);
                 break;
         }
     }
@@ -587,9 +591,15 @@ public final class Player implements PlaybackListener, Listener {
         }
     }
 
-    public void destroy() {
+
+    /**
+     * Shut down this player.
+     * Saves the stream progress, sets recovery.
+     * Then destroys the player in all UIs and destroys the UIs as well.
+     */
+    public void saveAndShutdown() {
         if (DEBUG) {
-            Log.d(TAG, "destroy() called");
+            Log.d(TAG, "saveAndShutdown() called");
         }
 
         saveStreamProgressState();
@@ -601,9 +611,8 @@ public final class Player implements PlaybackListener, Listener {
 
         databaseUpdateDisposable.clear();
         progressUpdateDisposable.set(null);
-        cancelLoadingCurrentThumbnail();
 
-        UIs.destroyAll(Object.class); // destroy every UI: obviously every UI extends Object
+        UIs.destroyAllOfType(null);
     }
 
     public void setRecovery() {
@@ -646,7 +655,7 @@ public final class Player implements PlaybackListener, Listener {
             Log.d(TAG, "onPlaybackShutdown() called");
         }
         // destroys the service, which in turn will destroy the player
-        service.stopService();
+        service.destroyPlayerAndStopService();
     }
 
     public void smoothStopForImmediateReusing() {
@@ -718,7 +727,7 @@ public final class Player implements PlaybackListener, Listener {
                 pause();
                 break;
             case ACTION_CLOSE:
-                service.stopService();
+                service.destroyPlayerAndStopService();
                 break;
             case ACTION_PLAY_PAUSE:
                 playPause();
@@ -775,67 +784,57 @@ public final class Player implements PlaybackListener, Listener {
     //////////////////////////////////////////////////////////////////////////*/
     //region Thumbnail loading
 
-    private Target getCurrentThumbnailTarget() {
-        // a Picasso target is just a listener for thumbnail loading events
-        return new Target() {
-            @Override
-            public void onBitmapLoaded(final Bitmap bitmap, final Picasso.LoadedFrom from) {
-                if (DEBUG) {
-                    Log.d(TAG, "Thumbnail - onBitmapLoaded() called with: bitmap = [" + bitmap
-                            + " -> " + bitmap.getWidth() + "x" + bitmap.getHeight() + "], from = ["
-                            + from + "]");
-                }
-                // there is a new thumbnail, so e.g. the end screen thumbnail needs to change, too.
-                onThumbnailLoaded(bitmap);
-            }
-
-            @Override
-            public void onBitmapFailed(final Exception e, final Drawable errorDrawable) {
-                Log.e(TAG, "Thumbnail - onBitmapFailed() called", e);
-                // there is a new thumbnail, so e.g. the end screen thumbnail needs to change, too.
-                onThumbnailLoaded(null);
-            }
-
-            @Override
-            public void onPrepareLoad(final Drawable placeHolderDrawable) {
-                if (DEBUG) {
-                    Log.d(TAG, "Thumbnail - onPrepareLoad() called");
-                }
-            }
-        };
-    }
-
     private void loadCurrentThumbnail(final List<Image> thumbnails) {
         if (DEBUG) {
             Log.d(TAG, "Thumbnail - loadCurrentThumbnail() called with thumbnails = ["
                     + thumbnails.size() + "]");
         }
 
-        // first cancel any previous loading
-        cancelLoadingCurrentThumbnail();
+        // Cancel any ongoing image loading
+        if (thumbnailDisposable != null) {
+            thumbnailDisposable.dispose();
+        }
 
         // Unset currentThumbnail, since it is now outdated. This ensures it is not used in media
-        // session metadata while the new thumbnail is being loaded by Picasso.
+        // session metadata while the new thumbnail is being loaded by Coil.
         onThumbnailLoaded(null);
         if (thumbnails.isEmpty()) {
             return;
         }
 
         // scale down the notification thumbnail for performance
-        PicassoHelper.loadScaledDownThumbnail(context, thumbnails)
-                .tag(PICASSO_PLAYER_THUMBNAIL_TAG)
-                .into(currentThumbnailTarget);
-    }
+        final var thumbnailTarget = new Target() {
+            @Override
+            public void onError(@Nullable final coil3.Image error) {
+                Log.e(TAG, "Thumbnail - onError() called");
+                // there is a new thumbnail, so e.g. the end screen thumbnail needs to change, too.
+                onThumbnailLoaded(null);
+            }
 
-    private void cancelLoadingCurrentThumbnail() {
-        // cancel the Picasso job associated with the player thumbnail, if any
-        PicassoHelper.cancelTag(PICASSO_PLAYER_THUMBNAIL_TAG);
+            @Override
+            public void onStart(@Nullable final coil3.Image placeholder) {
+                if (DEBUG) {
+                    Log.d(TAG, "Thumbnail - onStart() called");
+                }
+            }
+
+            @Override
+            public void onSuccess(@NonNull final coil3.Image result) {
+                if (DEBUG) {
+                    Log.d(TAG, "Thumbnail - onSuccess() called with: drawable = [" + result + "]");
+                }
+                // there is a new thumbnail, so e.g. the end screen thumbnail needs to change, too.
+                onThumbnailLoaded(toBitmap(result));
+            }
+        };
+        thumbnailDisposable = CoilHelper.INSTANCE
+                .loadScaledDownThumbnail(context, thumbnails, thumbnailTarget);
     }
 
     private void onThumbnailLoaded(@Nullable final Bitmap bitmap) {
         // Avoid useless thumbnail updates, if the thumbnail has not actually changed. Based on the
         // thumbnail loading code, this if would be skipped only when both bitmaps are `null`, since
-        // onThumbnailLoaded won't be called twice with the same nonnull bitmap by Picasso's target.
+        // onThumbnailLoaded won't be called twice with the same nonnull bitmap by Coil's target.
         if (currentThumbnail != bitmap) {
             currentThumbnail = bitmap;
             UIs.call(playerUi -> playerUi.onThumbnailLoaded(bitmap));
@@ -1375,6 +1374,19 @@ public final class Player implements PlaybackListener, Listener {
     public void onCues(@NonNull final CueGroup cueGroup) {
         UIs.call(playerUi -> playerUi.onCues(cueGroup.cues));
     }
+
+    /**
+     * To be called when the {@code PlaybackPreparer} set in the {@link MediaSessionConnector}
+     * receives an {@code onPrepare()} call. This function allows restoring the default behavior
+     * that would happen if there was no playback preparer set, i.e. to just call
+     * {@code player.prepare()}. You can find the default behavior in `onPlay()` inside the
+     * {@link MediaSessionConnector} file.
+     */
+    public void onPrepare() {
+        if (!exoPlayerIsNull()) {
+            simpleExoPlayer.prepare();
+        }
+    }
     //endregion
 
 
@@ -1989,6 +2001,10 @@ public final class Player implements PlaybackListener, Listener {
         triggerProgressUpdate();
     }
 
+    /**
+     * Remove the listener, if it was set.
+     * @param listener listener to remove
+     * */
     public void removeFragmentListener(final PlayerServiceEventListener listener) {
         if (fragmentListener == listener) {
             fragmentListener = null;
@@ -2003,6 +2019,10 @@ public final class Player implements PlaybackListener, Listener {
         triggerProgressUpdate();
     }
 
+    /**
+     * Remove the listener, if it was set.
+     * @param listener listener to remove
+     * */
     void removeActivityListener(final PlayerEventListener listener) {
         if (activityListener == listener) {
             activityListener = null;

app/src/main/java/org/schabi/newpipe/player/PlayerService.java

@@ -1,185 +0,0 @@
-/*
- * Copyright 2017 Mauricio Colli <mauriciocolli@outlook.com>
- * Part of NewPipe
- *
- * License: GPL-3.0+
- * This program 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.
- *
- * This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-package org.schabi.newpipe.player;
-
-import static org.schabi.newpipe.util.Localization.assureCorrectAppLanguage;
-
-import android.app.Service;
-import android.content.Context;
-import android.content.Intent;
-import android.os.Binder;
-import android.os.IBinder;
-import android.util.Log;
-
-import org.schabi.newpipe.player.mediasession.MediaSessionPlayerUi;
-import org.schabi.newpipe.player.notification.NotificationPlayerUi;
-import org.schabi.newpipe.util.ThemeHelper;
-
-import java.lang.ref.WeakReference;
-
-
-/**
- * One service for all players.
- */
-public final class PlayerService extends Service {
-    private static final String TAG = PlayerService.class.getSimpleName();
-    private static final boolean DEBUG = Player.DEBUG;
-
-    private Player player;
-
-    private final IBinder mBinder = new PlayerService.LocalBinder(this);
-
-
-    /*//////////////////////////////////////////////////////////////////////////
-    // Service's LifeCycle
-    //////////////////////////////////////////////////////////////////////////*/
-
-    @Override
-    public void onCreate() {
-        if (DEBUG) {
-            Log.d(TAG, "onCreate() called");
-        }
-        assureCorrectAppLanguage(this);
-        ThemeHelper.setTheme(this);
-
-        player = new Player(this);
-        /*
-        Create the player notification and start immediately the service in foreground,
-        otherwise if nothing is played or initializing the player and its components (especially
-        loading stream metadata) takes a lot of time, the app would crash on Android 8+ as the
-        service would never be put in the foreground while we said to the system we would do so
-         */
-        player.UIs().get(NotificationPlayerUi.class)
-                .ifPresent(NotificationPlayerUi::createNotificationAndStartForeground);
-    }
-
-    @Override
-    public int onStartCommand(final Intent intent, final int flags, final int startId) {
-        if (DEBUG) {
-            Log.d(TAG, "onStartCommand() called with: intent = [" + intent
-                    + "], flags = [" + flags + "], startId = [" + startId + "]");
-        }
-
-        /*
-        Be sure that the player notification is set and the service is started in foreground,
-        otherwise, the app may crash on Android 8+ as the service would never be put in the
-        foreground while we said to the system we would do so
-        The service is always requested to be started in foreground, so always creating a
-        notification if there is no one already and starting the service in foreground should
-        not create any issues
-        If the service is already started in foreground, requesting it to be started shouldn't
-        do anything
-         */
-        if (player != null) {
-            player.UIs().get(NotificationPlayerUi.class)
-                    .ifPresent(NotificationPlayerUi::createNotificationAndStartForeground);
-        }
-
-        if (Intent.ACTION_MEDIA_BUTTON.equals(intent.getAction())
-                && (player == null || player.getPlayQueue() == null)) {
-            /*
-            No need to process media button's actions if the player is not working, otherwise
-            the player service would strangely start with nothing to play
-            Stop the service in this case, which will be removed from the foreground and its
-            notification cancelled in its destruction
-             */
-            stopSelf();
-            return START_NOT_STICKY;
-        }
-
-        if (player != null) {
-            player.handleIntent(intent);
-            player.UIs().get(MediaSessionPlayerUi.class)
-                    .ifPresent(ui -> ui.handleMediaButtonIntent(intent));
-        }
-
-        return START_NOT_STICKY;
-    }
-
-    public void stopForImmediateReusing() {
-        if (DEBUG) {
-            Log.d(TAG, "stopForImmediateReusing() called");
-        }
-
-        if (player != null && !player.exoPlayerIsNull()) {
-            // Releases wifi & cpu, disables keepScreenOn, etc.
-            // We can't just pause the player here because it will make transition
-            // from one stream to a new stream not smooth
-            player.smoothStopForImmediateReusing();
-        }
-    }
-
-    @Override
-    public void onTaskRemoved(final Intent rootIntent) {
-        super.onTaskRemoved(rootIntent);
-        if (player != null && !player.videoPlayerSelected()) {
-            return;
-        }
-        onDestroy();
-        // Unload from memory completely
-        Runtime.getRuntime().halt(0);
-    }
-
-    @Override
-    public void onDestroy() {
-        if (DEBUG) {
-            Log.d(TAG, "destroy() called");
-        }
-        cleanup();
-    }
-
-    private void cleanup() {
-        if (player != null) {
-            player.destroy();
-            player = null;
-        }
-    }
-
-    public void stopService() {
-        cleanup();
-        stopSelf();
-    }
-
-    @Override
-    protected void attachBaseContext(final Context base) {
-        super.attachBaseContext(AudioServiceLeakFix.preventLeakOf(base));
-    }
-
-    @Override
-    public IBinder onBind(final Intent intent) {
-        return mBinder;
-    }
-
-    public static class LocalBinder extends Binder {
-        private final WeakReference<PlayerService> playerService;
-
-        LocalBinder(final PlayerService playerService) {
-            this.playerService = new WeakReference<>(playerService);
-        }
-
-        public PlayerService getService() {
-            return playerService.get();
-        }
-
-        public Player getPlayer() {
-            return playerService.get().player;
-        }
-    }
-}

app/src/main/java/org/schabi/newpipe/player/PlayerService.kt

@@ -0,0 +1,353 @@
+/*
+ * Copyright 2017 Mauricio Colli <mauriciocolli@outlook.com>
+ * Part of NewPipe
+ *
+ * License: GPL-3.0+
+ * This program 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.
+ *
+ * This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.schabi.newpipe.player
+
+import android.content.Context
+import android.content.Intent
+import android.os.Binder
+import android.os.Bundle
+import android.os.IBinder
+import android.support.v4.media.MediaBrowserCompat
+import android.support.v4.media.session.MediaSessionCompat
+import android.util.Log
+import androidx.core.app.ServiceCompat
+import androidx.media.MediaBrowserServiceCompat
+import com.google.android.exoplayer2.ext.mediasession.MediaSessionConnector
+import org.schabi.newpipe.ktx.toDebugString
+import org.schabi.newpipe.player.mediabrowser.MediaBrowserImpl
+import org.schabi.newpipe.player.mediabrowser.MediaBrowserPlaybackPreparer
+import org.schabi.newpipe.player.mediasession.MediaSessionPlayerUi
+import org.schabi.newpipe.player.notification.NotificationPlayerUi
+import org.schabi.newpipe.util.Localization
+import org.schabi.newpipe.util.ThemeHelper
+import java.lang.ref.WeakReference
+import java.util.function.BiConsumer
+import java.util.function.Consumer
+
+/**
+ * One service for all players.
+ */
+class PlayerService : MediaBrowserServiceCompat() {
+    // These objects are used to cleanly separate the Service implementation (in this file) and the
+    // media browser and playback preparer implementations. At the moment the playback preparer is
+    // only used in conjunction with the media browser.
+    private var mediaBrowserImpl: MediaBrowserImpl? = null
+    private var mediaBrowserPlaybackPreparer: MediaBrowserPlaybackPreparer? = null
+
+    // these are instantiated in onCreate() as per
+    // https://developer.android.com/training/cars/media#browser_workflow
+    private var mediaSession: MediaSessionCompat? = null
+    private var sessionConnector: MediaSessionConnector? = null
+
+    /**
+     * @return the current active player instance. May be null, since the player service can outlive
+     * the player e.g. to respond to Android Auto media browser queries.
+     */
+    var player: Player? = null
+        private set
+
+    private val mBinder: IBinder = LocalBinder(this)
+
+    /**
+     * The parameter taken by this [Consumer] can be null to indicate the player is being
+     * stopped.
+     */
+    private var onPlayerStartedOrStopped: Consumer<Player?>? = null
+
+    //region Service lifecycle
+    override fun onCreate() {
+        super.onCreate()
+
+        if (DEBUG) {
+            Log.d(TAG, "onCreate() called")
+        }
+        Localization.assureCorrectAppLanguage(this)
+        ThemeHelper.setTheme(this)
+
+        mediaBrowserImpl = MediaBrowserImpl(
+            this,
+            Consumer { parentId: String? ->
+                this.notifyChildrenChanged(
+                    parentId!!
+                )
+            }
+        )
+
+        // see https://developer.android.com/training/cars/media#browser_workflow
+        mediaSession = MediaSessionCompat(this, "MediaSessionPlayerServ")
+        setSessionToken(mediaSession!!.sessionToken)
+        sessionConnector = MediaSessionConnector(mediaSession!!)
+        sessionConnector!!.setMetadataDeduplicationEnabled(true)
+
+        mediaBrowserPlaybackPreparer = MediaBrowserPlaybackPreparer(
+            this,
+            BiConsumer { message: String?, code: Int? ->
+                sessionConnector!!.setCustomErrorMessage(
+                    message,
+                    code!!
+                )
+            },
+            Runnable { sessionConnector!!.setCustomErrorMessage(null) },
+            Consumer { playWhenReady: Boolean? ->
+                if (player != null) {
+                    player!!.onPrepare()
+                }
+            }
+        )
+        sessionConnector!!.setPlaybackPreparer(mediaBrowserPlaybackPreparer)
+
+        // Note: you might be tempted to create the player instance and call startForeground here,
+        // but be aware that the Android system might start the service just to perform media
+        // queries. In those cases creating a player instance is a waste of resources, and calling
+        // startForeground means creating a useless empty notification. In case it's really needed
+        // the player instance can be created here, but startForeground() should definitely not be
+        // called here unless the service is actually starting in the foreground, to avoid the
+        // useless notification.
+    }
+
+    override fun onStartCommand(intent: Intent, flags: Int, startId: Int): Int {
+        if (DEBUG) {
+            Log.d(
+                TAG,
+                (
+                    "onStartCommand() called with: intent = [" + intent +
+                        "], extras = [" + intent.extras.toDebugString() +
+                        "], flags = [" + flags + "], startId = [" + startId + "]"
+                    )
+            )
+        }
+
+        // All internal NewPipe intents used to interact with the player, that are sent to the
+        // PlayerService using startForegroundService(), will have SHOULD_START_FOREGROUND_EXTRA,
+        // to ensure startForeground() is called (otherwise Android will force-crash the app).
+        if (intent.getBooleanExtra(SHOULD_START_FOREGROUND_EXTRA, false)) {
+            val playerWasNull = (player == null)
+            if (playerWasNull) {
+                // make sure the player exists, in case the service was resumed
+                player = Player(this, mediaSession!!, sessionConnector!!)
+            }
+
+            // Be sure that the player notification is set and the service is started in foreground,
+            // otherwise, the app may crash on Android 8+ as the service would never be put in the
+            // foreground while we said to the system we would do so. The service is always
+            // requested to be started in foreground, so always creating a notification if there is
+            // no one already and starting the service in foreground should not create any issues.
+            // If the service is already started in foreground, requesting it to be started
+            // shouldn't do anything.
+            player!!.UIs().get(NotificationPlayerUi::class.java)
+                ?.createNotificationAndStartForeground()
+
+            if (playerWasNull && onPlayerStartedOrStopped != null) {
+                // notify that a new player was created (but do it after creating the foreground
+                // notification just to make sure we don't incur, due to slowness, in
+                // "Context.startForegroundService() did not then call Service.startForeground()")
+                onPlayerStartedOrStopped!!.accept(player)
+            }
+        }
+
+        if (Intent.ACTION_MEDIA_BUTTON == intent.action &&
+            (player == null || player!!.playQueue == null)
+        ) {
+            /*
+            No need to process media button's actions if the player is not working, otherwise
+            the player service would strangely start with nothing to play
+            Stop the service in this case, which will be removed from the foreground and its
+            notification cancelled in its destruction
+             */
+            destroyPlayerAndStopService()
+            return START_NOT_STICKY
+        }
+
+        val p = player
+        if (p != null) {
+            p.handleIntent(intent)
+            p.UIs().get(MediaSessionPlayerUi::class.java)
+                ?.handleMediaButtonIntent(intent)
+        }
+
+        return START_NOT_STICKY
+    }
+
+    fun stopForImmediateReusing() {
+        if (DEBUG) {
+            Log.d(TAG, "stopForImmediateReusing() called")
+        }
+
+        if (player != null && !player!!.exoPlayerIsNull()) {
+            // Releases wifi & cpu, disables keepScreenOn, etc.
+            // We can't just pause the player here because it will make transition
+            // from one stream to a new stream not smooth
+            player!!.smoothStopForImmediateReusing()
+        }
+    }
+
+    override fun onTaskRemoved(rootIntent: Intent?) {
+        super.onTaskRemoved(rootIntent)
+        if (player != null && !player!!.videoPlayerSelected()) {
+            return
+        }
+        onDestroy()
+        // Unload from memory completely
+        Runtime.getRuntime().halt(0)
+    }
+
+    override fun onDestroy() {
+        if (DEBUG) {
+            Log.d(TAG, "destroy() called")
+        }
+        super.onDestroy()
+
+        cleanup()
+
+        mediaBrowserPlaybackPreparer!!.dispose()
+        mediaSession!!.release()
+        mediaBrowserImpl!!.dispose()
+    }
+
+    private fun cleanup() {
+        if (player != null) {
+            if (onPlayerStartedOrStopped != null) {
+                // notify that the player is being destroyed
+                onPlayerStartedOrStopped!!.accept(null)
+            }
+            player!!.saveAndShutdown()
+            player = null
+        }
+
+        // Should already be handled by MediaSessionPlayerUi, but just to be sure.
+        mediaSession!!.setActive(false)
+
+        // Should already be handled by NotificationUtil.cancelNotificationAndStopForeground() in
+        // NotificationPlayerUi, but let's make sure that the foreground service is stopped.
+        ServiceCompat.stopForeground(this, ServiceCompat.STOP_FOREGROUND_REMOVE)
+    }
+
+    /**
+     * Destroys the player and allows the player instance to be garbage collected. Sets the media
+     * session to inactive. Stops the foreground service and removes the player notification
+     * associated with it. Tries to stop the [PlayerService] completely, but this step will
+     * have no effect in case some service connection still uses the service (e.g. the Android Auto
+     * system accesses the media browser even when no player is running).
+     */
+    fun destroyPlayerAndStopService() {
+        if (DEBUG) {
+            Log.d(TAG, "destroyPlayerAndStopService() called")
+        }
+
+        cleanup()
+
+        // This only really stops the service if there are no other service connections (see docs):
+        // for example the (Android Auto) media browser binder will block stopService().
+        // This is why we also stopForeground() above, to make sure the notification is removed.
+        // If we were to call stopSelf(), then the service would be surely stopped (regardless of
+        // other service connections), but this would be a waste of resources since the service
+        // would be immediately restarted by those same connections to perform the queries.
+        stopService(Intent(this, PlayerService::class.java))
+    }
+
+    override fun attachBaseContext(base: Context?) {
+        super.attachBaseContext(AudioServiceLeakFix.preventLeakOf(base))
+    }
+
+    //endregion
+    //region Bind
+    override fun onBind(intent: Intent): IBinder? {
+        if (DEBUG) {
+            Log.d(
+                TAG,
+                (
+                    "onBind() called with: intent = [" + intent +
+                        "], extras = [" + intent.extras.toDebugString() + "]"
+                    )
+            )
+        }
+
+        if (BIND_PLAYER_HOLDER_ACTION == intent.action) {
+            // Note that this binder might be reused multiple times while the service is alive, even
+            // after unbind() has been called: https://stackoverflow.com/a/8794930 .
+            return mBinder
+        } else if (SERVICE_INTERFACE == intent.action) {
+            // MediaBrowserService also uses its own binder, so for actions related to the media
+            // browser service, pass the onBind to the superclass.
+            return super.onBind(intent)
+        } else {
+            // This is an unknown request, avoid returning any binder to not leak objects.
+            return null
+        }
+    }
+
+    class LocalBinder internal constructor(playerService: PlayerService) : Binder() {
+        private val playerService: WeakReference<PlayerService?>
+
+        init {
+            this.playerService = WeakReference<PlayerService?>(playerService)
+        }
+
+        val service: PlayerService?
+            get() = playerService.get()
+    }
+
+    /**
+     * Sets the listener that will be called when the player is started or stopped. If a
+     * `null` listener is passed, then the current listener will be unset. The parameter taken
+     * by the [Consumer] can be null to indicate that the player is stopping.
+     * @param listener the listener to set or unset
+     */
+    fun setPlayerListener(listener: Consumer<Player?>?) {
+        this.onPlayerStartedOrStopped = listener
+        if (listener != null) {
+            // if there is no player, then `null` will be sent here, to ensure the state is synced
+            listener.accept(player)
+        }
+    }
+
+    //endregion
+    //region Media browser
+    override fun onGetRoot(
+        clientPackageName: String,
+        clientUid: Int,
+        rootHints: Bundle?
+    ): BrowserRoot {
+        // TODO check if the accessing package has permission to view data
+        return mediaBrowserImpl!!.onGetRoot(clientPackageName, clientUid, rootHints)
+    }
+
+    override fun onLoadChildren(
+        parentId: String,
+        result: Result<List<MediaBrowserCompat.MediaItem>>
+    ) {
+        mediaBrowserImpl!!.onLoadChildren(parentId, result)
+    }
+
+    override fun onSearch(
+        query: String,
+        extras: Bundle?,
+        result: Result<List<MediaBrowserCompat.MediaItem>>
+    ) {
+        mediaBrowserImpl!!.onSearch(query, result)
+    } //endregion
+
+    companion object {
+        private val TAG: String = PlayerService::class.java.getSimpleName()
+        private val DEBUG = Player.DEBUG
+
+        const val SHOULD_START_FOREGROUND_EXTRA: String = "should_start_foreground_extra"
+        const val BIND_PLAYER_HOLDER_ACTION: String = "bind_player_holder_action"
+    }
+}

app/src/main/java/org/schabi/newpipe/player/event/PlayerEventListener.java

@@ -5,6 +5,7 @@ import com.google.android.exoplayer2.PlaybackParameters;
 import org.schabi.newpipe.extractor.stream.StreamInfo;
 import org.schabi.newpipe.player.playqueue.PlayQueue;
 
+/** Player-specific events like queue or progress updates. */
 public interface PlayerEventListener {
     void onQueueUpdate(PlayQueue queue);
     void onPlaybackUpdate(int state, int repeatMode, boolean shuffled,

app/src/main/java/org/schabi/newpipe/player/event/PlayerServiceEventListener.java

@@ -2,6 +2,9 @@ package org.schabi.newpipe.player.event;
 
 import com.google.android.exoplayer2.PlaybackException;
 
+/** {@link org.schabi.newpipe.player.event.PlayerEventListener} that also gets called for
+ * application-specific events like screen rotation or UI changes.
+ */
 public interface PlayerServiceEventListener extends PlayerEventListener {
     void onViewCreated();
 

app/src/main/java/org/schabi/newpipe/player/event/PlayerServiceExtendedEventListener.java

@@ -1,11 +1,48 @@
 package org.schabi.newpipe.player.event;
 
+import androidx.annotation.NonNull;
+
 import org.schabi.newpipe.player.PlayerService;
 import org.schabi.newpipe.player.Player;
 
+/**
+ * In addition to {@link PlayerServiceEventListener}, provides callbacks for service and player
+ * connections and disconnections. "Connected" here means that the service (resp. the
+ * player) is running and is bound to {@link org.schabi.newpipe.player.helper.PlayerHolder}.
+ * "Disconnected" means that either the service (resp. the player) was stopped completely, or that
+ * {@link org.schabi.newpipe.player.helper.PlayerHolder} is not bound.
+ */
 public interface PlayerServiceExtendedEventListener extends PlayerServiceEventListener {
-    void onServiceConnected(Player player,
-                            PlayerService playerService,
-                            boolean playAfterConnect);
+    /**
+     * The player service just connected to {@link org.schabi.newpipe.player.helper.PlayerHolder},
+     * but the player may not be active at this moment, e.g. in case the service is running to
+     * respond to Android Auto media browser queries without playing anything.
+     * {@link #onPlayerConnected(Player, boolean)} will be called right after this function if there
+     * is a player.
+     *
+     * @param playerService the newly connected player service
+     */
+    void onServiceConnected(@NonNull PlayerService playerService);
+
+    /**
+     * The player service is already connected and the player was just started.
+     *
+     * @param player the newly connected or started player
+     * @param playAfterConnect whether to open the video player in the video details fragment
+     */
+    void onPlayerConnected(@NonNull Player player, boolean playAfterConnect);
+
+    /**
+     * The player got disconnected, for one of these reasons: the player is getting closed while
+     * leaving the service open for future media browser queries, the service is stopping
+     * completely, or {@link org.schabi.newpipe.player.helper.PlayerHolder} is unbinding.
+     */
+    void onPlayerDisconnected();
+
+    /**
+     * The service got disconnected from {@link org.schabi.newpipe.player.helper.PlayerHolder},
+     * either because {@link org.schabi.newpipe.player.helper.PlayerHolder} is unbinding or because
+     * the service is stopping completely.
+     */
     void onServiceDisconnected();
 }

app/src/main/java/org/schabi/newpipe/player/helper/PlayerHolder.java

@@ -22,6 +22,10 @@ import org.schabi.newpipe.player.PlayerType;
 import org.schabi.newpipe.player.event.PlayerServiceEventListener;
 import org.schabi.newpipe.player.event.PlayerServiceExtendedEventListener;
 import org.schabi.newpipe.player.playqueue.PlayQueue;
+import org.schabi.newpipe.util.NavigationHelper;
+
+import java.util.Optional;
+import java.util.function.Consumer;
 
 public final class PlayerHolder {
 
@@ -44,7 +48,16 @@ public final class PlayerHolder {
     private final PlayerServiceConnection serviceConnection = new PlayerServiceConnection();
     private boolean bound;
     @Nullable private PlayerService playerService;
-    @Nullable private Player player;
+
+    private Optional<Player> getPlayer() {
+        return Optional.ofNullable(playerService)
+                .flatMap(s -> Optional.ofNullable(s.getPlayer()));
+    }
+
+    private Optional<PlayQueue> getPlayQueue() {
+        // player play queue might be null e.g. while player is starting
+        return getPlayer().flatMap(p -> Optional.ofNullable(p.getPlayQueue()));
+    }
 
     /**
      * Returns the current {@link PlayerType} of the {@link PlayerService} service,
@@ -54,21 +67,15 @@ public final class PlayerHolder {
      */
     @Nullable
     public PlayerType getType() {
-        if (player == null) {
-            return null;
-        }
-        return player.getPlayerType();
+        return getPlayer().map(Player::getPlayerType).orElse(null);
     }
 
     public boolean isPlaying() {
-        if (player == null) {
-            return false;
-        }
-        return player.isPlaying();
+        return getPlayer().map(Player::isPlaying).orElse(false);
     }
 
     public boolean isPlayerOpen() {
-        return player != null;
+        return getPlayer().isPresent();
     }
 
     /**
@@ -77,7 +84,7 @@ public final class PlayerHolder {
      * @return true only if the player is open and its play queue is ready (i.e. it is not null)
      */
     public boolean isPlayQueueReady() {
-        return player != null && player.getPlayQueue() != null;
+        return getPlayQueue().isPresent();
     }
 
     public boolean isBound() {
@@ -85,18 +92,11 @@ public final class PlayerHolder {
     }
 
     public int getQueueSize() {
-        if (player == null || player.getPlayQueue() == null) {
-            // player play queue might be null e.g. while player is starting
-            return 0;
-        }
-        return player.getPlayQueue().size();
+        return getPlayQueue().map(PlayQueue::size).orElse(0);
     }
 
     public int getQueuePosition() {
-        if (player == null || player.getPlayQueue() == null) {
-            return 0;
-        }
-        return player.getPlayQueue().getIndex();
+        return getPlayQueue().map(PlayQueue::getIndex).orElse(0);
     }
 
     public void setListener(@Nullable final PlayerServiceExtendedEventListener newListener) {
@@ -107,20 +107,32 @@ public final class PlayerHolder {
         }
 
         // Force reload data from service
-        if (player != null) {
-            listener.onServiceConnected(player, playerService, false);
+        if (playerService != null) {
+            listener.onServiceConnected(playerService);
             startPlayerListener();
+            // ^ will call listener.onPlayerConnected() down the line if there is an active player
         }
     }
 
     // helper to handle context in common place as using the same
     // context to bind/unbind a service is crucial
     private Context getCommonContext() {
-        return App.getApp();
+        return App.getInstance();
     }
 
+    /**
+     * Connect to (and if needed start) the {@link PlayerService}
+     * and bind {@link PlayerServiceConnection} to it.
+     * If the service is already started, only set the listener.
+     * @param playAfterConnect If this holder’s service was already started,
+     *                         start playing immediately
+     * @param newListener set this listener
+     * */
     public void startService(final boolean playAfterConnect,
                              final PlayerServiceExtendedEventListener newListener) {
+        if (DEBUG) {
+            Log.d(TAG, "startService() called with playAfterConnect=" + playAfterConnect);
+        }
         final Context context = getCommonContext();
         setListener(newListener);
         if (bound) {
@@ -130,14 +142,24 @@ public final class PlayerHolder {
         // and NullPointerExceptions inside the service because the service will be
         // bound twice. Prevent it with unbinding first
         unbind(context);
-        ContextCompat.startForegroundService(context, new Intent(context, PlayerService.class));
+        final Intent intent = new Intent(context, PlayerService.class);
+        intent.putExtra(PlayerService.SHOULD_START_FOREGROUND_EXTRA, true);
+        ContextCompat.startForegroundService(context, intent);
         serviceConnection.doPlayAfterConnect(playAfterConnect);
         bind(context);
     }
 
     public void stopService() {
+        if (DEBUG) {
+            Log.d(TAG, "stopService() called");
+        }
+        if (playerService != null) {
+            playerService.destroyPlayerAndStopService();
+        }
         final Context context = getCommonContext();
         unbind(context);
+        // destroyPlayerAndStopService() already runs the next line of code, but run it again just
+        // to make sure to stop the service even if playerService is null by any chance.
         context.stopService(new Intent(context, PlayerService.class));
     }
 
@@ -167,11 +189,16 @@ public final class PlayerHolder {
             final PlayerService.LocalBinder localBinder = (PlayerService.LocalBinder) service;
 
             playerService = localBinder.getService();
-            player = localBinder.getPlayer();
             if (listener != null) {
-                listener.onServiceConnected(player, playerService, playAfterConnect);
+                listener.onServiceConnected(playerService);
+                getPlayer().ifPresent(p -> listener.onPlayerConnected(p, playAfterConnect));
             }
             startPlayerListener();
+            // ^ will call listener.onPlayerConnected() down the line if there is an active player
+
+            // notify the main activity that binding the service has completed, so that it can
+            // open the bottom mini-player
+            NavigationHelper.sendPlayerStartedEvent(localBinder.getService());
         }
     }
 
@@ -179,15 +206,28 @@ public final class PlayerHolder {
         if (DEBUG) {
             Log.d(TAG, "bind() called");
         }
-
-        final Intent serviceIntent = new Intent(context, PlayerService.class);
-        bound = context.bindService(serviceIntent, serviceConnection,
-                Context.BIND_AUTO_CREATE);
+        // BIND_AUTO_CREATE starts the service if it's not already running
+        bound = bind(context, Context.BIND_AUTO_CREATE);
         if (!bound) {
             context.unbindService(serviceConnection);
         }
     }
 
+    public void tryBindIfNeeded(final Context context) {
+        if (!bound) {
+            // flags=0 means the service will not be started if it does not already exist. In this
+            // case the return value is not useful, as a value of "true" does not really indicate
+            // that the service is going to be bound.
+            bind(context, 0);
+        }
+    }
+
+    private boolean bind(final Context context, final int flags) {
+        final Intent serviceIntent = new Intent(context, PlayerService.class);
+        serviceIntent.setAction(PlayerService.BIND_PLAYER_HOLDER_ACTION);
+        return context.bindService(serviceIntent, serviceConnection, flags);
+    }
+
     private void unbind(final Context context) {
         if (DEBUG) {
             Log.d(TAG, "unbind() called");
@@ -198,25 +238,32 @@ public final class PlayerHolder {
             bound = false;
             stopPlayerListener();
             playerService = null;
-            player = null;
             if (listener != null) {
+                listener.onPlayerDisconnected();
                 listener.onServiceDisconnected();
             }
         }
     }
 
     private void startPlayerListener() {
-        if (player != null) {
-            player.setFragmentListener(internalListener);
+        if (playerService != null) {
+            // setting the player listener will take care of calling relevant callbacks if the
+            // player in the service is (not) already active, also see playerStateListener below
+            playerService.setPlayerListener(playerStateListener);
         }
+        getPlayer().ifPresent(p -> p.setFragmentListener(internalListener));
     }
 
     private void stopPlayerListener() {
-        if (player != null) {
-            player.removeFragmentListener(internalListener);
+        if (playerService != null) {
+            playerService.setPlayerListener(null);
         }
+        getPlayer().ifPresent(p -> p.removeFragmentListener(internalListener));
     }
 
+    /**
+     * This listener will be held by the players created by {@link PlayerService}.
+     */
     private final PlayerServiceEventListener internalListener =
             new PlayerServiceEventListener() {
                 @Override
@@ -303,4 +350,23 @@ public final class PlayerHolder {
                     unbind(getCommonContext());
                 }
             };
+
+    /**
+     * This listener will be held by bound {@link PlayerService}s to notify of the player starting
+     * or stopping. This is necessary since the service outlives the player e.g. to answer Android
+     * Auto media browser queries.
+     */
+    private final Consumer<Player> playerStateListener = (@Nullable final Player player) -> {
+        if (listener != null) {
+            if (player == null) {
+                // player.fragmentListener=null is already done by player.stopActivityBinding(),
+                // which is called by player.destroy(), which is in turn called by PlayerService
+                // before setting its player to null
+                listener.onPlayerDisconnected();
+            } else {
+                listener.onPlayerConnected(player, serviceConnection.playAfterConnect);
+                player.setFragmentListener(internalListener);
+            }
+        }
+    };
 }

app/src/main/java/org/schabi/newpipe/player/mediabrowser/MediaBrowserCommon.kt

@@ -0,0 +1,40 @@
+package org.schabi.newpipe.player.mediabrowser
+
+import org.schabi.newpipe.BuildConfig
+import org.schabi.newpipe.extractor.InfoItem.InfoType
+import org.schabi.newpipe.extractor.exceptions.ContentNotAvailableException
+
+internal const val ID_AUTHORITY = BuildConfig.APPLICATION_ID
+internal const val ID_ROOT = "//$ID_AUTHORITY"
+internal const val ID_BOOKMARKS = "playlists"
+internal const val ID_HISTORY = "history"
+internal const val ID_INFO_ITEM = "item"
+
+internal const val ID_LOCAL = "local"
+internal const val ID_REMOTE = "remote"
+internal const val ID_URL = "url"
+internal const val ID_STREAM = "stream"
+internal const val ID_PLAYLIST = "playlist"
+internal const val ID_CHANNEL = "channel"
+
+internal fun infoItemTypeToString(type: InfoType): String {
+    return when (type) {
+        InfoType.STREAM -> ID_STREAM
+        InfoType.PLAYLIST -> ID_PLAYLIST
+        InfoType.CHANNEL -> ID_CHANNEL
+        else -> throw IllegalStateException("Unexpected value: $type")
+    }
+}
+
+internal fun infoItemTypeFromString(type: String): InfoType {
+    return when (type) {
+        ID_STREAM -> InfoType.STREAM
+        ID_PLAYLIST -> InfoType.PLAYLIST
+        ID_CHANNEL -> InfoType.CHANNEL
+        else -> throw IllegalStateException("Unexpected value: $type")
+    }
+}
+
+internal fun parseError(mediaId: String): ContentNotAvailableException {
+    return ContentNotAvailableException("Failed to parse media ID $mediaId")
+}

app/src/main/java/org/schabi/newpipe/player/mediabrowser/MediaBrowserImpl.kt

@@ -0,0 +1,399 @@
+package org.schabi.newpipe.player.mediabrowser
+
+import android.content.ContentResolver
+import android.content.Context
+import android.net.Uri
+import android.os.Bundle
+import android.support.v4.media.MediaBrowserCompat
+import android.support.v4.media.MediaDescriptionCompat
+import android.util.Log
+import androidx.annotation.DrawableRes
+import androidx.media.MediaBrowserServiceCompat
+import androidx.media.MediaBrowserServiceCompat.Result
+import androidx.media.utils.MediaConstants
+import io.reactivex.rxjava3.core.Flowable
+import io.reactivex.rxjava3.core.Single
+import io.reactivex.rxjava3.disposables.CompositeDisposable
+import io.reactivex.rxjava3.schedulers.Schedulers
+import org.schabi.newpipe.MainActivity.DEBUG
+import org.schabi.newpipe.NewPipeDatabase
+import org.schabi.newpipe.R
+import org.schabi.newpipe.database.history.model.StreamHistoryEntry
+import org.schabi.newpipe.database.playlist.PlaylistLocalItem
+import org.schabi.newpipe.database.playlist.PlaylistStreamEntry
+import org.schabi.newpipe.database.playlist.model.PlaylistRemoteEntity
+import org.schabi.newpipe.extractor.InfoItem
+import org.schabi.newpipe.extractor.InfoItem.InfoType
+import org.schabi.newpipe.extractor.channel.ChannelInfoItem
+import org.schabi.newpipe.extractor.exceptions.ContentNotAvailableException
+import org.schabi.newpipe.extractor.playlist.PlaylistInfoItem
+import org.schabi.newpipe.extractor.search.SearchInfo
+import org.schabi.newpipe.extractor.stream.StreamInfoItem
+import org.schabi.newpipe.local.bookmark.MergedPlaylistManager
+import org.schabi.newpipe.local.playlist.LocalPlaylistManager
+import org.schabi.newpipe.local.playlist.RemotePlaylistManager
+import org.schabi.newpipe.util.ExtractorHelper
+import org.schabi.newpipe.util.ServiceHelper
+import org.schabi.newpipe.util.image.ImageStrategy
+import java.util.function.Consumer
+
+/**
+ * This class is used to cleanly separate the Service implementation (in
+ * [org.schabi.newpipe.player.PlayerService]) and the media browser implementation (in this file).
+ *
+ * @param notifyChildrenChanged takes the parent id of the children that changed
+ */
+class MediaBrowserImpl(
+    private val context: Context,
+    notifyChildrenChanged: Consumer<String>, // parentId
+) {
+    private val database = NewPipeDatabase.getInstance(context)
+    private var disposables = CompositeDisposable()
+
+    init {
+        // this will listen to changes in the bookmarks until this MediaBrowserImpl is dispose()d
+        disposables.add(
+            getMergedPlaylists().subscribe { notifyChildrenChanged.accept(ID_BOOKMARKS) }
+        )
+    }
+
+    //region Cleanup
+    fun dispose() {
+        disposables.dispose()
+    }
+    //endregion
+
+    //region onGetRoot
+    fun onGetRoot(
+        clientPackageName: String,
+        clientUid: Int,
+        rootHints: Bundle?
+    ): MediaBrowserServiceCompat.BrowserRoot {
+        if (DEBUG) {
+            Log.d(TAG, "onGetRoot($clientPackageName, $clientUid, $rootHints)")
+        }
+
+        val extras = Bundle()
+        extras.putBoolean(
+            MediaConstants.BROWSER_SERVICE_EXTRAS_KEY_SEARCH_SUPPORTED, true
+        )
+        return MediaBrowserServiceCompat.BrowserRoot(ID_ROOT, extras)
+    }
+    //endregion
+
+    //region onLoadChildren
+    fun onLoadChildren(parentId: String, result: Result<List<MediaBrowserCompat.MediaItem>>) {
+        if (DEBUG) {
+            Log.d(TAG, "onLoadChildren($parentId)")
+        }
+
+        result.detach() // allows sendResult() to happen later
+        disposables.add(
+            onLoadChildren(parentId)
+                .subscribe(
+                    { result.sendResult(it) },
+                    { throwable ->
+                        // null indicates an error, see the docs of MediaSessionCompat.onSearch()
+                        result.sendResult(null)
+                        Log.e(TAG, "onLoadChildren error for parentId=$parentId: $throwable")
+                    }
+                )
+        )
+    }
+
+    private fun onLoadChildren(parentId: String): Single<List<MediaBrowserCompat.MediaItem>> {
+        try {
+            val parentIdUri = Uri.parse(parentId)
+            val path = ArrayList(parentIdUri.pathSegments)
+
+            if (path.isEmpty()) {
+                return Single.just(
+                    listOf(
+                        createRootMediaItem(
+                            ID_BOOKMARKS,
+                            context.resources.getString(R.string.tab_bookmarks_short),
+                            R.drawable.ic_bookmark_white
+                        ),
+                        createRootMediaItem(
+                            ID_HISTORY,
+                            context.resources.getString(R.string.action_history),
+                            R.drawable.ic_history_white
+                        )
+                    )
+                )
+            }
+
+            when (/*val uriType = */path.removeAt(0)) {
+                ID_BOOKMARKS -> {
+                    if (path.isEmpty()) {
+                        return populateBookmarks()
+                    }
+                    if (path.size == 2) {
+                        val localOrRemote = path[0]
+                        val playlistId = path[1].toLong()
+                        if (localOrRemote == ID_LOCAL) {
+                            return populateLocalPlaylist(playlistId)
+                        } else if (localOrRemote == ID_REMOTE) {
+                            return populateRemotePlaylist(playlistId)
+                        }
+                    }
+                    Log.w(TAG, "Unknown playlist URI: $parentId")
+                    throw parseError(parentId)
+                }
+
+                ID_HISTORY -> return populateHistory()
+
+                else -> throw parseError(parentId)
+            }
+        } catch (e: ContentNotAvailableException) {
+            return Single.error(e)
+        }
+    }
+
+    private fun createRootMediaItem(
+        mediaId: String?,
+        folderName: String?,
+        @DrawableRes iconResId: Int
+    ): MediaBrowserCompat.MediaItem {
+        val builder = MediaDescriptionCompat.Builder()
+        builder.setMediaId(mediaId)
+        builder.setTitle(folderName)
+        val resources = context.resources
+        builder.setIconUri(
+            Uri.Builder()
+                .scheme(ContentResolver.SCHEME_ANDROID_RESOURCE)
+                .authority(resources.getResourcePackageName(iconResId))
+                .appendPath(resources.getResourceTypeName(iconResId))
+                .appendPath(resources.getResourceEntryName(iconResId))
+                .build()
+        )
+
+        val extras = Bundle()
+        extras.putString(
+            MediaConstants.DESCRIPTION_EXTRAS_KEY_CONTENT_STYLE_GROUP_TITLE,
+            context.getString(R.string.app_name)
+        )
+        builder.setExtras(extras)
+        return MediaBrowserCompat.MediaItem(
+            builder.build(),
+            MediaBrowserCompat.MediaItem.FLAG_BROWSABLE
+        )
+    }
+
+    private fun createPlaylistMediaItem(playlist: PlaylistLocalItem): MediaBrowserCompat.MediaItem {
+        val builder = MediaDescriptionCompat.Builder()
+        builder
+            .setMediaId(createMediaIdForInfoItem(playlist is PlaylistRemoteEntity, playlist.uid))
+            .setTitle(playlist.orderingName)
+            .setIconUri(playlist.thumbnailUrl?.let { Uri.parse(it) })
+
+        val extras = Bundle()
+        extras.putString(
+            MediaConstants.DESCRIPTION_EXTRAS_KEY_CONTENT_STYLE_GROUP_TITLE,
+            context.resources.getString(R.string.tab_bookmarks),
+        )
+        builder.setExtras(extras)
+        return MediaBrowserCompat.MediaItem(
+            builder.build(),
+            MediaBrowserCompat.MediaItem.FLAG_BROWSABLE,
+        )
+    }
+
+    private fun createInfoItemMediaItem(item: InfoItem): MediaBrowserCompat.MediaItem? {
+        val builder = MediaDescriptionCompat.Builder()
+        builder.setMediaId(createMediaIdForInfoItem(item))
+            .setTitle(item.name)
+
+        when (item.infoType) {
+            InfoType.STREAM -> builder.setSubtitle((item as StreamInfoItem).uploaderName)
+            InfoType.PLAYLIST -> builder.setSubtitle((item as PlaylistInfoItem).uploaderName)
+            InfoType.CHANNEL -> builder.setSubtitle((item as ChannelInfoItem).description)
+            else -> return null
+        }
+
+        ImageStrategy.choosePreferredImage(item.thumbnails)?.let {
+            builder.setIconUri(Uri.parse(it))
+        }
+
+        return MediaBrowserCompat.MediaItem(
+            builder.build(),
+            MediaBrowserCompat.MediaItem.FLAG_PLAYABLE
+        )
+    }
+
+    private fun buildMediaId(): Uri.Builder {
+        return Uri.Builder().authority(ID_AUTHORITY)
+    }
+
+    private fun buildPlaylistMediaId(playlistType: String?): Uri.Builder {
+        return buildMediaId()
+            .appendPath(ID_BOOKMARKS)
+            .appendPath(playlistType)
+    }
+
+    private fun buildLocalPlaylistItemMediaId(isRemote: Boolean, playlistId: Long): Uri.Builder {
+        return buildPlaylistMediaId(if (isRemote) ID_REMOTE else ID_LOCAL)
+            .appendPath(playlistId.toString())
+    }
+
+    private fun buildInfoItemMediaId(item: InfoItem): Uri.Builder {
+        return buildMediaId()
+            .appendPath(ID_INFO_ITEM)
+            .appendPath(infoItemTypeToString(item.infoType))
+            .appendPath(item.serviceId.toString())
+            .appendQueryParameter(ID_URL, item.url)
+    }
+
+    private fun createMediaIdForInfoItem(isRemote: Boolean, playlistId: Long): String {
+        return buildLocalPlaylistItemMediaId(isRemote, playlistId)
+            .build().toString()
+    }
+
+    private fun createLocalPlaylistStreamMediaItem(
+        playlistId: Long,
+        item: PlaylistStreamEntry,
+        index: Int,
+    ): MediaBrowserCompat.MediaItem {
+        val builder = MediaDescriptionCompat.Builder()
+        builder.setMediaId(createMediaIdForPlaylistIndex(false, playlistId, index))
+            .setTitle(item.streamEntity.title)
+            .setSubtitle(item.streamEntity.uploader)
+            .setIconUri(Uri.parse(item.streamEntity.thumbnailUrl))
+
+        return MediaBrowserCompat.MediaItem(
+            builder.build(),
+            MediaBrowserCompat.MediaItem.FLAG_PLAYABLE
+        )
+    }
+
+    private fun createRemotePlaylistStreamMediaItem(
+        playlistId: Long,
+        item: StreamInfoItem,
+        index: Int,
+    ): MediaBrowserCompat.MediaItem {
+        val builder = MediaDescriptionCompat.Builder()
+        builder.setMediaId(createMediaIdForPlaylistIndex(true, playlistId, index))
+            .setTitle(item.name)
+            .setSubtitle(item.uploaderName)
+
+        ImageStrategy.choosePreferredImage(item.thumbnails)?.let {
+            builder.setIconUri(Uri.parse(it))
+        }
+
+        return MediaBrowserCompat.MediaItem(
+            builder.build(),
+            MediaBrowserCompat.MediaItem.FLAG_PLAYABLE
+        )
+    }
+
+    private fun createMediaIdForPlaylistIndex(
+        isRemote: Boolean,
+        playlistId: Long,
+        index: Int,
+    ): String {
+        return buildLocalPlaylistItemMediaId(isRemote, playlistId)
+            .appendPath(index.toString())
+            .build().toString()
+    }
+
+    private fun createMediaIdForInfoItem(item: InfoItem): String {
+        return buildInfoItemMediaId(item).build().toString()
+    }
+
+    private fun populateHistory(): Single<List<MediaBrowserCompat.MediaItem>> {
+        val history = database.streamHistoryDAO().getHistory().firstOrError()
+        return history.map { items ->
+            items.map { this.createHistoryMediaItem(it) }
+        }
+    }
+
+    private fun createHistoryMediaItem(streamHistoryEntry: StreamHistoryEntry): MediaBrowserCompat.MediaItem {
+        val builder = MediaDescriptionCompat.Builder()
+        val mediaId = buildMediaId()
+            .appendPath(ID_HISTORY)
+            .appendPath(streamHistoryEntry.streamId.toString())
+            .build().toString()
+        builder.setMediaId(mediaId)
+            .setTitle(streamHistoryEntry.streamEntity.title)
+            .setSubtitle(streamHistoryEntry.streamEntity.uploader)
+            .setIconUri(Uri.parse(streamHistoryEntry.streamEntity.thumbnailUrl))
+
+        return MediaBrowserCompat.MediaItem(
+            builder.build(),
+            MediaBrowserCompat.MediaItem.FLAG_PLAYABLE
+        )
+    }
+
+    private fun getMergedPlaylists(): Flowable<MutableList<PlaylistLocalItem>> {
+        return MergedPlaylistManager.getMergedOrderedPlaylists(
+            LocalPlaylistManager(database),
+            RemotePlaylistManager(database)
+        )
+    }
+
+    private fun populateBookmarks(): Single<List<MediaBrowserCompat.MediaItem>> {
+        val playlists = getMergedPlaylists().firstOrError()
+        return playlists.map { playlist ->
+            playlist.map { this.createPlaylistMediaItem(it) }
+        }
+    }
+
+    private fun populateLocalPlaylist(playlistId: Long): Single<List<MediaBrowserCompat.MediaItem>> {
+        val playlist = LocalPlaylistManager(database).getPlaylistStreams(playlistId).firstOrError()
+        return playlist.map { items ->
+            items.mapIndexed { index, item ->
+                createLocalPlaylistStreamMediaItem(playlistId, item, index)
+            }
+        }
+    }
+
+    private fun populateRemotePlaylist(playlistId: Long): Single<List<MediaBrowserCompat.MediaItem>> {
+        return RemotePlaylistManager(database).getPlaylist(playlistId).firstOrError()
+            .flatMap { ExtractorHelper.getPlaylistInfo(it.serviceId, it.url, false) }
+            .map {
+                // ignore it.errors, i.e. ignore errors about specific items, since there would
+                // be no way to show the error properly in Android Auto anyway
+                it.relatedItems.mapIndexed { index, item ->
+                    createRemotePlaylistStreamMediaItem(playlistId, item, index)
+                }
+            }
+    }
+    //endregion
+
+    //region Search
+    fun onSearch(
+        query: String,
+        result: Result<List<MediaBrowserCompat.MediaItem>>
+    ) {
+        if (DEBUG) {
+            Log.d(TAG, "onSearch($query)")
+        }
+
+        result.detach() // allows sendResult() to happen later
+        disposables.add(
+            searchMusicBySongTitle(query)
+                // ignore it.errors, i.e. ignore errors about specific items, since there would
+                // be no way to show the error properly in Android Auto anyway
+                .map { it.relatedItems.mapNotNull(this::createInfoItemMediaItem) }
+                .subscribeOn(Schedulers.io())
+                .subscribe(
+                    { result.sendResult(it) },
+                    { throwable ->
+                        // null indicates an error, see the docs of MediaSessionCompat.onSearch()
+                        result.sendResult(null)
+                        Log.e(TAG, "Search error for query=\"$query\": $throwable")
+                    }
+                )
+        )
+    }
+
+    private fun searchMusicBySongTitle(query: String?): Single<SearchInfo> {
+        val serviceId = ServiceHelper.getSelectedServiceId(context)
+        return ExtractorHelper.searchFor(serviceId, query, listOf(), "")
+    }
+    //endregion
+
+    companion object {
+        private val TAG: String = MediaBrowserImpl::class.java.getSimpleName()
+    }
+}

app/src/main/java/org/schabi/newpipe/player/mediabrowser/MediaBrowserPlaybackPreparer.kt

@@ -0,0 +1,259 @@
+package org.schabi.newpipe.player.mediabrowser
+
+import android.content.Context
+import android.net.Uri
+import android.os.Bundle
+import android.os.ResultReceiver
+import android.support.v4.media.session.PlaybackStateCompat
+import android.util.Log
+import com.google.android.exoplayer2.Player
+import com.google.android.exoplayer2.ext.mediasession.MediaSessionConnector.PlaybackPreparer
+import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers
+import io.reactivex.rxjava3.core.Single
+import io.reactivex.rxjava3.disposables.Disposable
+import io.reactivex.rxjava3.schedulers.Schedulers
+import org.schabi.newpipe.MainActivity
+import org.schabi.newpipe.NewPipeDatabase
+import org.schabi.newpipe.R
+import org.schabi.newpipe.extractor.InfoItem.InfoType
+import org.schabi.newpipe.extractor.exceptions.ContentNotAvailableException
+import org.schabi.newpipe.extractor.linkhandler.ListLinkHandler
+import org.schabi.newpipe.local.playlist.LocalPlaylistManager
+import org.schabi.newpipe.local.playlist.RemotePlaylistManager
+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.ExtractorHelper
+import org.schabi.newpipe.util.NavigationHelper
+import java.util.function.BiConsumer
+import java.util.function.Consumer
+
+/**
+ * This class is used to cleanly separate the Service implementation (in
+ * [org.schabi.newpipe.player.PlayerService]) and the playback preparer implementation (in this
+ * file). We currently use the playback preparer only in conjunction with the media browser: the
+ * playback preparer will receive the media URLs generated by [MediaBrowserImpl] and will start
+ * playback of the corresponding streams or playlists.
+ *
+ * @param setMediaSessionError takes an error String and an error code from [PlaybackStateCompat],
+ * calls `sessionConnector.setCustomErrorMessage(errorString, errorCode)`
+ * @param clearMediaSessionError calls `sessionConnector.setCustomErrorMessage(null)`
+ * @param onPrepare takes playWhenReady, calls `player.prepare()`; this is needed because
+ * `MediaSessionConnector`'s `onPlay()` method calls this class'  [onPrepare] instead of
+ * `player.prepare()` if the playback preparer is not null, but we want the original behavior
+ */
+class MediaBrowserPlaybackPreparer(
+    private val context: Context,
+    private val setMediaSessionError: BiConsumer<String, Int>, // error string, error code
+    private val clearMediaSessionError: Runnable,
+    private val onPrepare: Consumer<Boolean>,
+) : PlaybackPreparer {
+    private val database = NewPipeDatabase.getInstance(context)
+    private var disposable: Disposable? = null
+
+    fun dispose() {
+        disposable?.dispose()
+    }
+
+    //region Overrides
+    override fun getSupportedPrepareActions(): Long {
+        return PlaybackStateCompat.ACTION_PLAY_FROM_MEDIA_ID
+    }
+
+    override fun onPrepare(playWhenReady: Boolean) {
+        onPrepare.accept(playWhenReady)
+    }
+
+    override fun onPrepareFromMediaId(mediaId: String, playWhenReady: Boolean, extras: Bundle?) {
+        if (MainActivity.DEBUG) {
+            Log.d(TAG, "onPrepareFromMediaId($mediaId, $playWhenReady, $extras)")
+        }
+
+        disposable?.dispose()
+        disposable = extractPlayQueueFromMediaId(mediaId)
+            .subscribeOn(Schedulers.io())
+            .observeOn(AndroidSchedulers.mainThread())
+            .subscribe(
+                { playQueue ->
+                    clearMediaSessionError.run()
+                    NavigationHelper.playOnBackgroundPlayer(context, playQueue, playWhenReady)
+                },
+                { throwable ->
+                    Log.e(TAG, "Failed to start playback of media ID [$mediaId]", throwable)
+                    onPrepareError()
+                }
+            )
+    }
+
+    override fun onPrepareFromSearch(query: String, playWhenReady: Boolean, extras: Bundle?) {
+        onUnsupportedError()
+    }
+
+    override fun onPrepareFromUri(uri: Uri, playWhenReady: Boolean, extras: Bundle?) {
+        onUnsupportedError()
+    }
+
+    override fun onCommand(
+        player: Player,
+        command: String,
+        extras: Bundle?,
+        cb: ResultReceiver?
+    ): Boolean {
+        return false
+    }
+    //endregion
+
+    //region Errors
+    private fun onUnsupportedError() {
+        setMediaSessionError.accept(
+            context.getString(R.string.content_not_supported),
+            PlaybackStateCompat.ERROR_CODE_NOT_SUPPORTED
+        )
+    }
+
+    private fun onPrepareError() {
+        setMediaSessionError.accept(
+            context.getString(R.string.error_snackbar_message),
+            PlaybackStateCompat.ERROR_CODE_APP_ERROR
+        )
+    }
+    //endregion
+
+    //region Building play queues from playlists and history
+    private fun extractLocalPlayQueue(playlistId: Long, index: Int): Single<PlayQueue> {
+        return LocalPlaylistManager(database).getPlaylistStreams(playlistId).firstOrError()
+            .map { items -> SinglePlayQueue(items.map { it.toStreamInfoItem() }, index) }
+    }
+
+    private fun extractRemotePlayQueue(playlistId: Long, index: Int): Single<PlayQueue> {
+        return RemotePlaylistManager(database).getPlaylist(playlistId).firstOrError()
+            .flatMap { ExtractorHelper.getPlaylistInfo(it.serviceId, it.url, false) }
+            // ignore info.errors, i.e. ignore errors about specific items, since there would
+            // be no way to show the error properly in Android Auto anyway
+            .map { info -> PlaylistPlayQueue(info, index) }
+    }
+
+    private fun extractPlayQueueFromMediaId(mediaId: String): Single<PlayQueue> {
+        try {
+            val mediaIdUri = Uri.parse(mediaId)
+            val path = ArrayList(mediaIdUri.pathSegments)
+            if (path.isEmpty()) {
+                throw parseError(mediaId)
+            }
+
+            return when (/*val uriType = */path.removeAt(0)) {
+                ID_BOOKMARKS -> extractPlayQueueFromPlaylistMediaId(
+                    mediaId,
+                    path,
+                    mediaIdUri.getQueryParameter(ID_URL)
+                )
+
+                ID_HISTORY -> extractPlayQueueFromHistoryMediaId(mediaId, path)
+
+                ID_INFO_ITEM -> extractPlayQueueFromInfoItemMediaId(
+                    mediaId,
+                    path,
+                    mediaIdUri.getQueryParameter(ID_URL) ?: throw parseError(mediaId)
+                )
+
+                else -> throw parseError(mediaId)
+            }
+        } catch (e: ContentNotAvailableException) {
+            return Single.error(e)
+        }
+    }
+
+    @Throws(ContentNotAvailableException::class)
+    private fun extractPlayQueueFromPlaylistMediaId(
+        mediaId: String,
+        path: MutableList<String>,
+        url: String?,
+    ): Single<PlayQueue> {
+        if (path.isEmpty()) {
+            throw parseError(mediaId)
+        }
+
+        when (val playlistType = path.removeAt(0)) {
+            ID_LOCAL, ID_REMOTE -> {
+                if (path.size != 2) {
+                    throw parseError(mediaId)
+                }
+                val playlistId = path[0].toLong()
+                val index = path[1].toInt()
+                return if (playlistType == ID_LOCAL)
+                    extractLocalPlayQueue(playlistId, index)
+                else
+                    extractRemotePlayQueue(playlistId, index)
+            }
+
+            ID_URL -> {
+                if (path.size != 1 || url == null) {
+                    throw parseError(mediaId)
+                }
+
+                val serviceId = path[0].toInt()
+                return ExtractorHelper.getPlaylistInfo(serviceId, url, false)
+                    .map { PlaylistPlayQueue(it) }
+            }
+
+            else -> throw parseError(mediaId)
+        }
+    }
+
+    @Throws(ContentNotAvailableException::class)
+    private fun extractPlayQueueFromHistoryMediaId(
+        mediaId: String,
+        path: List<String>,
+    ): Single<PlayQueue> {
+        if (path.size != 1) {
+            throw parseError(mediaId)
+        }
+
+        val streamId = path[0].toLong()
+        return database.streamHistoryDAO().getHistory()
+            .firstOrError()
+            .map { items ->
+                val infoItems = items
+                    .filter { it.streamId == streamId }
+                    .map { it.toStreamInfoItem() }
+                SinglePlayQueue(infoItems, 0)
+            }
+    }
+
+    @Throws(ContentNotAvailableException::class)
+    private fun extractPlayQueueFromInfoItemMediaId(
+        mediaId: String,
+        path: List<String>,
+        url: String,
+    ): Single<PlayQueue> {
+        if (path.size != 2) {
+            throw parseError(mediaId)
+        }
+
+        val serviceId = path[1].toInt()
+        return when (/*val infoItemType = */infoItemTypeFromString(path[0])) {
+            InfoType.STREAM -> ExtractorHelper.getStreamInfo(serviceId, url, false)
+                .map { SinglePlayQueue(it) }
+
+            InfoType.PLAYLIST -> ExtractorHelper.getPlaylistInfo(serviceId, url, false)
+                .map { PlaylistPlayQueue(it) }
+
+            InfoType.CHANNEL -> ExtractorHelper.getChannelInfo(serviceId, url, false)
+                .map { info ->
+                    val playableTab = info.tabs
+                        .firstOrNull { ChannelTabHelper.isStreamsTab(it) }
+                        ?: throw ContentNotAvailableException("No streams tab found")
+                    return@map ChannelTabPlayQueue(serviceId, ListLinkHandler(playableTab))
+                }
+
+            else -> throw parseError(mediaId)
+        }
+    }
+    //endregion
+
+    companion object {
+        private val TAG = MediaBrowserPlaybackPreparer::class.simpleName
+    }
+}

app/src/main/java/org/schabi/newpipe/player/mediasession/MediaSessionPlayerUi.java

@@ -38,10 +38,10 @@ public class MediaSessionPlayerUi extends PlayerUi
         implements SharedPreferences.OnSharedPreferenceChangeListener {
     private static final String TAG = "MediaSessUi";
 
-    @Nullable
-    private MediaSessionCompat mediaSession;
-    @Nullable
-    private MediaSessionConnector sessionConnector;
+    @NonNull
+    private final MediaSessionCompat mediaSession;
+    @NonNull
+    private final MediaSessionConnector sessionConnector;
 
     private final String ignoreHardwareMediaButtonsKey;
     private boolean shouldIgnoreHardwareMediaButtons = false;
@@ -50,9 +50,13 @@ public class MediaSessionPlayerUi extends PlayerUi
     private List<NotificationActionData> prevNotificationActions = List.of();
 
 
-    public MediaSessionPlayerUi(@NonNull final Player player) {
+    public MediaSessionPlayerUi(@NonNull final Player player,
+                                @NonNull final MediaSessionCompat mediaSession,
+                                @NonNull final MediaSessionConnector sessionConnector) {
         super(player);
-        ignoreHardwareMediaButtonsKey =
+        this.mediaSession = mediaSession;
+        this.sessionConnector = sessionConnector;
+        this.ignoreHardwareMediaButtonsKey =
                 context.getString(R.string.ignore_hardware_media_buttons_key);
     }
 
@@ -61,10 +65,8 @@ public class MediaSessionPlayerUi extends PlayerUi
         super.initPlayer();
         destroyPlayer(); // release previously used resources
 
-        mediaSession = new MediaSessionCompat(context, TAG);
         mediaSession.setActive(true);
 
-        sessionConnector = new MediaSessionConnector(mediaSession);
         sessionConnector.setQueueNavigator(new PlayQueueNavigator(mediaSession, player));
         sessionConnector.setPlayer(getForwardingPlayer());
 
@@ -89,27 +91,18 @@ public class MediaSessionPlayerUi extends PlayerUi
     public void destroyPlayer() {
         super.destroyPlayer();
         player.getPrefs().unregisterOnSharedPreferenceChangeListener(this);
-        if (sessionConnector != null) {
-            sessionConnector.setMediaButtonEventHandler(null);
-            sessionConnector.setPlayer(null);
-            sessionConnector.setQueueNavigator(null);
-            sessionConnector = null;
-        }
-        if (mediaSession != null) {
-            mediaSession.setActive(false);
-            mediaSession.release();
-            mediaSession = null;
-        }
+        sessionConnector.setMediaButtonEventHandler(null);
+        sessionConnector.setPlayer(null);
+        sessionConnector.setQueueNavigator(null);
+        mediaSession.setActive(false);
         prevNotificationActions = List.of();
     }
 
     @Override
     public void onThumbnailLoaded(@Nullable final Bitmap bitmap) {
         super.onThumbnailLoaded(bitmap);
-        if (sessionConnector != null) {
-            // the thumbnail is now loaded: invalidate the metadata to trigger a metadata update
-            sessionConnector.invalidateMediaSessionMetadata();
-        }
+        // the thumbnail is now loaded: invalidate the metadata to trigger a metadata update
+        sessionConnector.invalidateMediaSessionMetadata();
     }
 
 
@@ -145,7 +138,7 @@ public class MediaSessionPlayerUi extends PlayerUi
             public void play() {
                 player.play();
                 // hide the player controls even if the play command came from the media session
-                player.UIs().get(VideoPlayerUi.class).ifPresent(ui -> ui.hideControls(0, 0));
+                player.UIs().getOpt(VideoPlayerUi.class).ifPresent(ui -> ui.hideControls(0, 0));
             }
 
             @Override
@@ -200,8 +193,8 @@ public class MediaSessionPlayerUi extends PlayerUi
             return;
         }
 
-        if (sessionConnector == null) {
-            // sessionConnector will be null after destroyPlayer is called
+        if (!mediaSession.isActive()) {
+            // mediaSession will be inactive after destroyPlayer is called
             return;
         }
 

app/src/main/java/org/schabi/newpipe/player/notification/NotificationUtil.java

@@ -102,7 +102,7 @@ public final class NotificationUtil {
             mediaStyle.setShowActionsInCompactView(compactSlots);
         }
         player.UIs()
-                .get(MediaSessionPlayerUi.class)
+                .getOpt(MediaSessionPlayerUi.class)
                 .flatMap(MediaSessionPlayerUi::getSessionToken)
                 .ifPresent(mediaStyle::setMediaSession);
 

app/src/main/java/org/schabi/newpipe/player/playqueue/AbstractInfoPlayQueue.java

@@ -28,13 +28,17 @@ abstract class AbstractInfoPlayQueue<T extends ListInfo<? extends InfoItem>>
     private transient Disposable fetchReactor;
 
     protected AbstractInfoPlayQueue(final T info) {
+        this(info, 0);
+    }
+
+    protected AbstractInfoPlayQueue(final T info, final int index) {
         this(info.getServiceId(), info.getUrl(), info.getNextPage(),
                 info.getRelatedItems()
                         .stream()
                         .filter(StreamInfoItem.class::isInstance)
                         .map(StreamInfoItem.class::cast)
                         .collect(Collectors.toList()),
-                0);
+                index);
     }
 
     protected AbstractInfoPlayQueue(final int serviceId,

app/src/main/java/org/schabi/newpipe/player/playqueue/PlayQueueItemBuilder.java

@@ -6,8 +6,8 @@ import android.view.MotionEvent;
 import android.view.View;
 
 import org.schabi.newpipe.util.Localization;
-import org.schabi.newpipe.util.image.PicassoHelper;
 import org.schabi.newpipe.util.ServiceHelper;
+import org.schabi.newpipe.util.image.CoilHelper;
 
 public class PlayQueueItemBuilder {
     private static final String TAG = PlayQueueItemBuilder.class.toString();
@@ -33,7 +33,7 @@ public class PlayQueueItemBuilder {
             holder.itemDurationView.setVisibility(View.GONE);
         }
 
-        PicassoHelper.loadThumbnail(item.getThumbnails()).into(holder.itemThumbnailView);
+        CoilHelper.INSTANCE.loadThumbnail(holder.itemThumbnailView, item.getThumbnails());
 
         holder.itemRoot.setOnClickListener(view -> {
             if (onItemClickListener != null) {

app/src/main/java/org/schabi/newpipe/player/playqueue/PlaylistPlayQueue.java

@@ -16,6 +16,10 @@ public final class PlaylistPlayQueue extends AbstractInfoPlayQueue<PlaylistInfo>
         super(info);
     }
 
+    public PlaylistPlayQueue(final PlaylistInfo info, final int index) {
+        super(info, index);
+    }
+
     public PlaylistPlayQueue(final int serviceId,
                              final String url,
                              final Page nextPage,

app/src/main/java/org/schabi/newpipe/player/seekbarpreview/SeekbarPreviewThumbnailHolder.java

@@ -13,8 +13,9 @@ import androidx.collection.SparseArrayCompat;
 
 import com.google.common.base.Stopwatch;
 
+import org.schabi.newpipe.App;
 import org.schabi.newpipe.extractor.stream.Frameset;
-import org.schabi.newpipe.util.image.PicassoHelper;
+import org.schabi.newpipe.util.image.CoilHelper;
 
 import java.util.Comparator;
 import java.util.List;
@@ -207,8 +208,8 @@ public class SeekbarPreviewThumbnailHolder {
             Log.d(TAG, "Downloading bitmap for seekbarPreview from '" + url + "'");
 
             // Gets the bitmap within the timeout of 15 seconds imposed by default by OkHttpClient
-            // Ensure that your are not running on the main-Thread this will otherwise hang
-            final Bitmap bitmap = PicassoHelper.loadSeekbarThumbnailPreview(url).get();
+            // Ensure that you are not running on the main thread, otherwise this will hang
+            final var bitmap = CoilHelper.INSTANCE.loadBitmapBlocking(App.getInstance(), url);
 
             if (sw != null) {
                 Log.d(TAG, "Download of bitmap for seekbarPreview from '" + url + "' took "

app/src/main/java/org/schabi/newpipe/player/ui/PlayerUiList.java

@@ -1,90 +0,0 @@
-package org.schabi.newpipe.player.ui;
-
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Optional;
-import java.util.function.Consumer;
-
-public final class PlayerUiList {
-    final List<PlayerUi> playerUis = new ArrayList<>();
-
-    /**
-     * Creates a {@link PlayerUiList} starting with the provided player uis. The provided player uis
-     * will not be prepared like those passed to {@link #addAndPrepare(PlayerUi)}, because when
-     * the {@link PlayerUiList} constructor is called, the player is still not running and it
-     * wouldn't make sense to initialize uis then. Instead the player will initialize them by doing
-     * proper calls to {@link #call(Consumer)}.
-     *
-     * @param initialPlayerUis the player uis this list should start with; the order will be kept
-     */
-    public PlayerUiList(final PlayerUi... initialPlayerUis) {
-        playerUis.addAll(List.of(initialPlayerUis));
-    }
-
-    /**
-     * Adds the provided player ui to the list and calls on it the initialization functions that
-     * apply based on the current player state. The preparation step needs to be done since when UIs
-     * are removed and re-added, the player will not call e.g. initPlayer again since the exoplayer
-     * is already initialized, but we need to notify the newly built UI that the player is ready
-     * nonetheless.
-     * @param playerUi the player ui to prepare and add to the list; its {@link
-     *                 PlayerUi#getPlayer()} will be used to query information about the player
-     *                 state
-     */
-    public void addAndPrepare(final PlayerUi playerUi) {
-        if (playerUi.getPlayer().getFragmentListener().isPresent()) {
-            // make sure UIs know whether a service is connected or not
-            playerUi.onFragmentListenerSet();
-        }
-
-        if (!playerUi.getPlayer().exoPlayerIsNull()) {
-            playerUi.initPlayer();
-            if (playerUi.getPlayer().getPlayQueue() != null) {
-                playerUi.initPlayback();
-            }
-        }
-
-        playerUis.add(playerUi);
-    }
-
-    /**
-     * Destroys all matching player UIs and removes them from the list.
-     * @param playerUiType the class of the player UI to destroy; the {@link
-     *                     Class#isInstance(Object)} method will be used, so even subclasses will be
-     *                     destroyed and removed
-     * @param <T>          the class type parameter
-     */
-    public <T> void destroyAll(final Class<T> playerUiType) {
-        playerUis.stream()
-                .filter(playerUiType::isInstance)
-                .forEach(playerUi -> {
-                    playerUi.destroyPlayer();
-                    playerUi.destroy();
-                });
-        playerUis.removeIf(playerUiType::isInstance);
-    }
-
-    /**
-     * @param playerUiType the class of the player UI to return; the {@link
-     *                     Class#isInstance(Object)} method will be used, so even subclasses could
-     *                     be returned
-     * @param <T>          the class type parameter
-     * @return the first player UI of the required type found in the list, or an empty {@link
-     *         Optional} otherwise
-     */
-    public <T> Optional<T> get(final Class<T> playerUiType) {
-        return playerUis.stream()
-                .filter(playerUiType::isInstance)
-                .map(playerUiType::cast)
-                .findFirst();
-    }
-
-    /**
-     * Calls the provided consumer on all player UIs in the list, in order of addition.
-     * @param consumer the consumer to call with player UIs
-     */
-    public void call(final Consumer<PlayerUi> consumer) {
-        //noinspection SimplifyStreamApiCallChains
-        playerUis.stream().forEachOrdered(consumer);
-    }
-}

app/src/main/java/org/schabi/newpipe/player/ui/PlayerUiList.kt

@@ -0,0 +1,124 @@
+package org.schabi.newpipe.player.ui
+
+import org.schabi.newpipe.util.GuardedByMutex
+import java.util.Optional
+
+class PlayerUiList(vararg initialPlayerUis: PlayerUi) {
+    private var playerUis = GuardedByMutex(mutableListOf<PlayerUi>())
+
+    /**
+     * Creates a [PlayerUiList] starting with the provided player uis. The provided player uis
+     * will not be prepared like those passed to [.addAndPrepare], because when
+     * the [PlayerUiList] constructor is called, the player is still not running and it
+     * wouldn't make sense to initialize uis then. Instead the player will initialize them by doing
+     * proper calls to [.call].
+     *
+     * @param initialPlayerUis the player uis this list should start with; the order will be kept
+     */
+    init {
+        playerUis.runWithLockSync {
+            lockData.addAll(listOf(*initialPlayerUis))
+        }
+    }
+
+    /**
+     * Adds the provided player ui to the list and calls on it the initialization functions that
+     * apply based on the current player state. The preparation step needs to be done since when UIs
+     * are removed and re-added, the player will not call e.g. initPlayer again since the exoplayer
+     * is already initialized, but we need to notify the newly built UI that the player is ready
+     * nonetheless.
+     * @param playerUi the player ui to prepare and add to the list; its [PlayerUi.getPlayer]
+     * will be used to query information about the player state
+     */
+    fun addAndPrepare(playerUi: PlayerUi) {
+        if (playerUi.getPlayer().fragmentListener.isPresent) {
+            // make sure UIs know whether a service is connected or not
+            playerUi.onFragmentListenerSet()
+        }
+
+        if (!playerUi.getPlayer().exoPlayerIsNull()) {
+            playerUi.initPlayer()
+            if (playerUi.getPlayer().playQueue != null) {
+                playerUi.initPlayback()
+            }
+        }
+
+        playerUis.runWithLockSync {
+            lockData.add(playerUi)
+        }
+    }
+
+    /**
+     * Destroys all matching player UIs and removes them from the list.
+     * @param playerUiType the class of the player UI to destroy, everything if `null`.
+     * The [Class.isInstance] method will be used, so even subclasses will be
+     * destroyed and removed
+     * @param T the class type parameter </T>
+     * */
+    fun <T : PlayerUi> destroyAllOfType(playerUiType: Class<T>? = null) {
+        val toDestroy = mutableListOf<PlayerUi>()
+
+        // short blocking removal from class to prevent interfering from other threads
+        playerUis.runWithLockSync {
+            val new = mutableListOf<PlayerUi>()
+            for (ui in lockData) {
+                if (playerUiType == null || playerUiType.isInstance(ui)) {
+                    toDestroy.add(ui)
+                } else {
+                    new.add(ui)
+                }
+            }
+            lockData = new
+        }
+        // then actually destroy the UIs
+        for (ui in toDestroy) {
+            ui.destroyPlayer()
+            ui.destroy()
+        }
+    }
+
+    /**
+     * @param playerUiType the class of the player UI to return;
+     * the [Class.isInstance] method will be used, so even subclasses could be returned
+     * @param T the class type parameter
+     * @return the first player UI of the required type found in the list, or null
+     </T> */
+    fun <T : PlayerUi> get(playerUiType: Class<T>): T? =
+        playerUis.runWithLockSync {
+            for (ui in lockData) {
+                if (playerUiType.isInstance(ui)) {
+                    when (val r = playerUiType.cast(ui)) {
+                        // try all UIs before returning null
+                        null -> continue
+                        else -> return@runWithLockSync r
+                    }
+                }
+            }
+            return@runWithLockSync null
+        }
+
+    /**
+     * @param playerUiType the class of the player UI to return;
+     * the [Class.isInstance] method will be used, so even subclasses could be returned
+     * @param T the class type parameter
+     * @return the first player UI of the required type found in the list, or an empty
+     * [Optional] otherwise
+     </T> */
+    @Deprecated("use get", ReplaceWith("get(playerUiType)"))
+    fun <T : PlayerUi> getOpt(playerUiType: Class<T>): Optional<T> =
+        Optional.ofNullable(get(playerUiType))
+
+    /**
+     * Calls the provided consumer on all player UIs in the list, in order of addition.
+     * @param consumer the consumer to call with player UIs
+     */
+    fun call(consumer: java.util.function.Consumer<PlayerUi>) {
+        // copy the list out of the mutex before calling the consumer which might block
+        val new = playerUis.runWithLockSync {
+            lockData.toMutableList()
+        }
+        for (ui in new) {
+            consumer.accept(ui)
+        }
+    }
+}

app/src/main/java/org/schabi/newpipe/player/ui/PopupPlayerUi.java

@@ -382,7 +382,7 @@ public final class PopupPlayerUi extends VideoPlayerUi {
                     private void end() {
                         windowManager.removeView(closeOverlayBinding.getRoot());
                         closeOverlayBinding = null;
-                        player.getService().stopService();
+                        player.getService().destroyPlayerAndStopService();
                     }
                 }).start();
     }

app/src/main/java/org/schabi/newpipe/player/ui/VideoPlayerUi.java

@@ -16,6 +16,7 @@ import static org.schabi.newpipe.player.helper.PlayerHelper.getTimeString;
 import static org.schabi.newpipe.player.helper.PlayerHelper.nextResizeModeAndSaveToPrefs;
 import static org.schabi.newpipe.player.helper.PlayerHelper.retrieveSeekDurationFromPreferences;
 
+import android.annotation.SuppressLint;
 import android.content.Intent;
 import android.content.res.Resources;
 import android.graphics.Bitmap;
@@ -761,7 +762,7 @@ public abstract class VideoPlayerUi extends PlayerUi implements SeekBar.OnSeekBa
     }
 
     /**
-     * Update the play/pause button ({@link R.id.playPauseButton}) to reflect the action
+     * Update the play/pause button (`R.id.playPauseButton`) to reflect the action
      * that will be performed when the button is clicked..
      * @param action the action that is performed when the play/pause button is clicked
      */
@@ -947,6 +948,8 @@ public abstract class VideoPlayerUi extends PlayerUi implements SeekBar.OnSeekBa
         player.toggleShuffleModeEnabled();
     }
 
+    // TODO: don’t reference internal exoplayer2 resources
+    @SuppressLint("PrivateResource")
     @Override
     public void onRepeatModeChanged(@RepeatMode final int repeatMode) {
         super.onRepeatModeChanged(repeatMode);

app/src/main/java/org/schabi/newpipe/settings/ContentSettingsFragment.java

@@ -1,10 +1,15 @@
 package org.schabi.newpipe.settings;
 
 import android.content.Context;
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Build;
 import android.os.Bundle;
+import android.provider.Settings;
 import android.util.Log;
 import android.widget.Toast;
 
+import androidx.appcompat.app.AppCompatDelegate;
 import androidx.preference.Preference;
 
 import org.schabi.newpipe.DownloaderImpl;
@@ -13,16 +18,15 @@ import org.schabi.newpipe.extractor.NewPipe;
 import org.schabi.newpipe.extractor.localization.ContentCountry;
 import org.schabi.newpipe.extractor.localization.Localization;
 import org.schabi.newpipe.util.image.ImageStrategy;
-import org.schabi.newpipe.util.image.PicassoHelper;
 import org.schabi.newpipe.util.image.PreferredImageQuality;
 
-import java.io.IOException;
+import java.util.Locale;
+
+import coil3.SingletonImageLoader;
 
 public class ContentSettingsFragment extends BasePreferenceFragment {
     private String youtubeRestrictedModeEnabledKey;
 
-    private Localization initialSelectedLocalization;
-    private ContentCountry initialSelectedContentCountry;
     private String initialLanguage;
 
     @Override
@@ -31,25 +35,40 @@ public class ContentSettingsFragment extends BasePreferenceFragment {
 
         addPreferencesFromResourceRegistry();
 
-        initialSelectedLocalization = org.schabi.newpipe.util.Localization
-                .getPreferredLocalization(requireContext());
-        initialSelectedContentCountry = org.schabi.newpipe.util.Localization
-                .getPreferredContentCountry(requireContext());
         initialLanguage = defaultPreferences.getString(getString(R.string.app_language_key), "en");
 
+        if (Build.VERSION.SDK_INT >= 33) {
+            requirePreference(R.string.app_language_key).setVisible(false);
+            final Preference newAppLanguagePref =
+                    requirePreference(R.string.app_language_android_13_and_up_key);
+            newAppLanguagePref.setSummaryProvider(preference -> {
+                final Locale customLocale = AppCompatDelegate.getApplicationLocales().get(0);
+                if (customLocale != null) {
+                    return customLocale.getDisplayName();
+                }
+                return getString(R.string.systems_language);
+            });
+            newAppLanguagePref.setOnPreferenceClickListener(preference -> {
+                final Intent intent = new Intent(Settings.ACTION_APP_LOCALE_SETTINGS)
+                        .setData(Uri.fromParts("package", requireContext().getPackageName(), null));
+                startActivity(intent);
+                return true;
+            });
+            newAppLanguagePref.setVisible(true);
+        }
+
         final Preference imageQualityPreference = requirePreference(R.string.image_quality_key);
         imageQualityPreference.setOnPreferenceChangeListener(
                 (preference, newValue) -> {
                     ImageStrategy.setPreferredImageQuality(PreferredImageQuality
                             .fromPreferenceKey(requireContext(), (String) newValue));
-                    try {
-                        PicassoHelper.clearCache(preference.getContext());
-                        Toast.makeText(preference.getContext(),
-                                R.string.thumbnail_cache_wipe_complete_notice, Toast.LENGTH_SHORT)
-                                .show();
-                    } catch (final IOException e) {
-                        Log.e(TAG, "Unable to clear Picasso cache", e);
-                    }
+                    final var loader = SingletonImageLoader.get(preference.getContext());
+                    loader.getMemoryCache().clear();
+                    loader.getDiskCache().clear();
+                    Toast.makeText(preference.getContext(),
+                            R.string.thumbnail_cache_wipe_complete_notice, Toast.LENGTH_SHORT)
+                            .show();
+
                     return true;
                 });
     }
@@ -72,19 +91,21 @@ public class ContentSettingsFragment extends BasePreferenceFragment {
     public void onDestroy() {
         super.onDestroy();
 
-        final Localization selectedLocalization = org.schabi.newpipe.util.Localization
-                .getPreferredLocalization(requireContext());
-        final ContentCountry selectedContentCountry = org.schabi.newpipe.util.Localization
-                .getPreferredContentCountry(requireContext());
         final String selectedLanguage =
                 defaultPreferences.getString(getString(R.string.app_language_key), "en");
 
-        if (!selectedLocalization.equals(initialSelectedLocalization)
-                || !selectedContentCountry.equals(initialSelectedContentCountry)
-                || !selectedLanguage.equals(initialLanguage)) {
-            Toast.makeText(requireContext(), R.string.localization_changes_requires_app_restart,
-                    Toast.LENGTH_LONG).show();
-
+        if (!selectedLanguage.equals(initialLanguage)) {
+            if (Build.VERSION.SDK_INT < 33) {
+                Toast.makeText(
+                        requireContext(),
+                        R.string.localization_changes_requires_app_restart,
+                        Toast.LENGTH_LONG
+                ).show();
+            }
+            final Localization selectedLocalization = org.schabi.newpipe.util.Localization
+                    .getPreferredLocalization(requireContext());
+            final ContentCountry selectedContentCountry = org.schabi.newpipe.util.Localization
+                    .getPreferredContentCountry(requireContext());
             NewPipe.setupLocalization(selectedLocalization, selectedContentCountry);
         }
     }

app/src/main/java/org/schabi/newpipe/settings/DebugScreen.kt

@@ -0,0 +1,27 @@
+package org.schabi.newpipe.settings
+
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.padding
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Modifier
+import org.schabi.newpipe.R
+import org.schabi.newpipe.settings.viewmodel.SettingsViewModel
+import org.schabi.newpipe.ui.SwitchPreference
+import org.schabi.newpipe.ui.theme.SizeTokens
+
+@Composable
+fun DebugScreen(viewModel: SettingsViewModel, modifier: Modifier = Modifier) {
+
+    val settingsLayoutRedesign by viewModel.settingsLayoutRedesign.collectAsState()
+
+    Column(modifier = modifier) {
+        SwitchPreference(
+            modifier = Modifier.padding(SizeTokens.SpacingExtraSmall),
+            R.string.settings_layout_redesign,
+            settingsLayoutRedesign,
+            viewModel::toggleSettingsLayoutRedesign
+        )
+    }
+}

app/src/main/java/org/schabi/newpipe/settings/DebugSettingsFragment.java

@@ -10,7 +10,6 @@ import org.schabi.newpipe.error.ErrorInfo;
 import org.schabi.newpipe.error.ErrorUtil;
 import org.schabi.newpipe.error.UserAction;
 import org.schabi.newpipe.local.feed.notifications.NotificationWorker;
-import org.schabi.newpipe.util.image.PicassoHelper;
 
 import java.util.Optional;
 
@@ -25,8 +24,6 @@ public class DebugSettingsFragment extends BasePreferenceFragment {
                 findPreference(getString(R.string.allow_heap_dumping_key));
         final Preference showMemoryLeaksPreference =
                 findPreference(getString(R.string.show_memory_leaks_key));
-        final Preference showImageIndicatorsPreference =
-                findPreference(getString(R.string.show_image_indicators_key));
         final Preference checkNewStreamsPreference =
                 findPreference(getString(R.string.check_new_streams_key));
         final Preference crashTheAppPreference =
@@ -38,7 +35,6 @@ public class DebugSettingsFragment extends BasePreferenceFragment {
 
         assert allowHeapDumpingPreference != null;
         assert showMemoryLeaksPreference != null;
-        assert showImageIndicatorsPreference != null;
         assert checkNewStreamsPreference != null;
         assert crashTheAppPreference != null;
         assert showErrorSnackbarPreference != null;
@@ -61,11 +57,6 @@ public class DebugSettingsFragment extends BasePreferenceFragment {
             showMemoryLeaksPreference.setSummary(R.string.leak_canary_not_available);
         }
 
-        showImageIndicatorsPreference.setOnPreferenceChangeListener((preference, newValue) -> {
-            PicassoHelper.setIndicatorsEnabled((Boolean) newValue);
-            return true;
-        });
-
         checkNewStreamsPreference.setOnPreferenceClickListener(preference -> {
             NotificationWorker.runNow(preference.getContext());
             return true;

app/src/main/java/org/schabi/newpipe/settings/NewPipeSettings.java

@@ -156,7 +156,7 @@ public final class NewPipeSettings {
                 prefs.getInt(disabledTunnelingAutomaticallyKey, -1) == 0
                         && !prefs.getBoolean(disabledTunnelingKey, false);
 
-        if (App.getApp().isFirstRun()
+        if (App.getInstance().isFirstRun()
                 || (wasDeviceBlacklistUpdated && !wasMediaTunnelingEnabledByUser)) {
             setMediaTunneling(context);
         }

app/src/main/java/org/schabi/newpipe/settings/SelectChannelFragment.java

@@ -11,6 +11,7 @@ import android.widget.TextView;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.compose.ui.platform.ComposeView;
 import androidx.fragment.app.DialogFragment;
 import androidx.recyclerview.widget.LinearLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;
@@ -19,8 +20,10 @@ import org.schabi.newpipe.R;
 import org.schabi.newpipe.database.subscription.SubscriptionEntity;
 import org.schabi.newpipe.error.ErrorUtil;
 import org.schabi.newpipe.local.subscription.SubscriptionManager;
-import org.schabi.newpipe.util.image.PicassoHelper;
+import org.schabi.newpipe.ui.emptystate.EmptyStateSpec;
+import org.schabi.newpipe.ui.emptystate.EmptyStateUtil;
 import org.schabi.newpipe.util.ThemeHelper;
+import org.schabi.newpipe.util.image.CoilHelper;
 
 import java.util.List;
 import java.util.Vector;
@@ -57,7 +60,7 @@ public class SelectChannelFragment extends DialogFragment {
     private OnCancelListener onCancelListener = null;
 
     private ProgressBar progressBar;
-    private TextView emptyView;
+    private ComposeView emptyView;
     private RecyclerView recyclerView;
 
     private List<SubscriptionEntity> subscriptions = new Vector<>();
@@ -91,6 +94,9 @@ public class SelectChannelFragment extends DialogFragment {
 
         progressBar = v.findViewById(R.id.progressBar);
         emptyView = v.findViewById(R.id.empty_state_view);
+
+        EmptyStateUtil.setEmptyStateComposable(emptyView,
+                EmptyStateSpec.Companion.getNoSubscriptions());
         progressBar.setVisibility(View.VISIBLE);
         recyclerView.setVisibility(View.GONE);
         emptyView.setVisibility(View.GONE);
@@ -190,7 +196,7 @@ public class SelectChannelFragment extends DialogFragment {
             final SubscriptionEntity entry = subscriptions.get(position);
             holder.titleView.setText(entry.getName());
             holder.view.setOnClickListener(view -> clickedItem(position));
-            PicassoHelper.loadAvatar(entry.getAvatarUrl()).into(holder.thumbnailView);
+            CoilHelper.INSTANCE.loadAvatar(holder.thumbnailView, entry.getAvatarUrl());
         }
 
         @Override

app/src/main/java/org/schabi/newpipe/settings/SelectPlaylistFragment.java

@@ -11,6 +11,7 @@ import android.widget.ProgressBar;
 import android.widget.TextView;
 
 import androidx.annotation.NonNull;
+import androidx.compose.ui.platform.ComposeView;
 import androidx.fragment.app.DialogFragment;
 import androidx.recyclerview.widget.LinearLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;
@@ -27,7 +28,9 @@ import org.schabi.newpipe.error.ErrorUtil;
 import org.schabi.newpipe.error.UserAction;
 import org.schabi.newpipe.local.playlist.LocalPlaylistManager;
 import org.schabi.newpipe.local.playlist.RemotePlaylistManager;
-import org.schabi.newpipe.util.image.PicassoHelper;
+import org.schabi.newpipe.ui.emptystate.EmptyStateSpec;
+import org.schabi.newpipe.ui.emptystate.EmptyStateUtil;
+import org.schabi.newpipe.util.image.CoilHelper;
 
 import java.util.List;
 import java.util.Vector;
@@ -40,7 +43,7 @@ public class SelectPlaylistFragment extends DialogFragment {
     private OnSelectedListener onSelectedListener = null;
 
     private ProgressBar progressBar;
-    private TextView emptyView;
+    private ComposeView emptyView;
     private RecyclerView recyclerView;
     private Disposable disposable = null;
 
@@ -62,6 +65,8 @@ public class SelectPlaylistFragment extends DialogFragment {
         recyclerView = v.findViewById(R.id.items_list);
         emptyView = v.findViewById(R.id.empty_state_view);
 
+        EmptyStateUtil.setEmptyStateComposable(emptyView,
+                EmptyStateSpec.Companion.getNoBookmarkedPlaylist());
         recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
         final SelectPlaylistAdapter playlistAdapter = new SelectPlaylistAdapter();
         recyclerView.setAdapter(playlistAdapter);
@@ -154,20 +159,15 @@ public class SelectPlaylistFragment extends DialogFragment {
                                      final int position) {
             final PlaylistLocalItem selectedItem = playlists.get(position);
 
-            if (selectedItem instanceof PlaylistMetadataEntry) {
-                final PlaylistMetadataEntry entry = ((PlaylistMetadataEntry) selectedItem);
-
+            if (selectedItem instanceof PlaylistMetadataEntry entry) {
                 holder.titleView.setText(entry.name);
                 holder.view.setOnClickListener(view -> clickedItem(position));
-                PicassoHelper.loadPlaylistThumbnail(entry.thumbnailUrl).into(holder.thumbnailView);
-
-            } else if (selectedItem instanceof PlaylistRemoteEntity) {
-                final PlaylistRemoteEntity entry = ((PlaylistRemoteEntity) selectedItem);
-
+                CoilHelper.INSTANCE.loadPlaylistThumbnail(holder.thumbnailView, entry.thumbnailUrl);
+            } else if (selectedItem instanceof PlaylistRemoteEntity entry) {
                 holder.titleView.setText(entry.getName());
                 holder.view.setOnClickListener(view -> clickedItem(position));
-                PicassoHelper.loadPlaylistThumbnail(entry.getThumbnailUrl())
-                        .into(holder.thumbnailView);
+                CoilHelper.INSTANCE.loadPlaylistThumbnail(holder.thumbnailView,
+                        entry.getThumbnailUrl());
             }
         }
 

app/src/main/java/org/schabi/newpipe/settings/SettingMigrations.java

@@ -1,5 +1,7 @@
 package org.schabi.newpipe.settings;
 
+import static org.schabi.newpipe.MainActivity.DEBUG;
+
 import android.content.Context;
 import android.content.SharedPreferences;
 import android.util.Log;
@@ -18,8 +20,6 @@ import java.util.Collections;
 import java.util.HashSet;
 import java.util.Set;
 
-import static org.schabi.newpipe.MainActivity.DEBUG;
-
 /**
  * In order to add a migration, follow these steps, given P is the previous version:<br>
  * - in the class body add a new {@code MIGRATION_P_P+1 = new Migration(P, P+1) { ... }} and put in
@@ -171,7 +171,7 @@ public final class SettingMigrations {
         final int lastPrefVersion = sp.getInt(lastPrefVersionKey, 0);
 
         // no migration to run, already up to date
-        if (App.getApp().isFirstRun()) {
+        if (App.getInstance().isFirstRun()) {
             sp.edit().putInt(lastPrefVersionKey, VERSION).apply();
             return;
         } else if (lastPrefVersion == VERSION) {