improved fling behavior, added tab indicator dots, added next video in related videos

app/src/main/java/android/support/design/widget/FlingBehavior.java

@@ -0,0 +1,143 @@
+package android.support.design.widget;
+
+import android.animation.ValueAnimator;
+import android.content.Context;
+import android.os.Parcelable;
+import android.support.annotation.NonNull;
+import android.util.AttributeSet;
+import android.view.View;
+
+// check this https://github.com/ToDou/appbarlayout-spring-behavior/blob/master/appbarspring/src/main/java/android/support/design/widget/AppBarFlingFixBehavior.java
+public final class FlingBehavior extends AppBarLayout.Behavior {
+
+    private ValueAnimator mOffsetAnimator;
+    private static final int MAX_OFFSET_ANIMATION_DURATION = 600; // ms
+
+    public FlingBehavior() {
+    }
+
+    public FlingBehavior(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    @Override
+    public boolean onStartNestedScroll(CoordinatorLayout parent, AppBarLayout child, View directTargetChild, View target, int nestedScrollAxes, int type) {
+        return super.onStartNestedScroll(parent, child, directTargetChild, target, nestedScrollAxes, type);
+    }
+
+    @Override
+    public void onNestedPreScroll(CoordinatorLayout coordinatorLayout, AppBarLayout child, View target, int dx, int dy, int[] consumed, int type) {
+        if (dy != 0) {
+            int val = child.getBottom();
+            if (val != 0) {
+                int min, max;
+                if (dy < 0) {
+                    // We're scrolling down
+                } else {
+                    // We're scrolling up
+                    min = -child.getUpNestedPreScrollRange();
+                    max = 0;
+                    consumed[1] = scroll(coordinatorLayout, child, dy, min, max);
+                }
+            }
+        }
+    }
+
+    @Override
+    public void onNestedScroll(CoordinatorLayout coordinatorLayout, AppBarLayout child, View target, int dxConsumed, int dyConsumed, int dxUnconsumed, int dyUnconsumed, int type) {
+        super.onNestedScroll(coordinatorLayout, child, target, dxConsumed, dyConsumed, dxUnconsumed, dyUnconsumed, type);
+    }
+
+    @Override
+    public void onStopNestedScroll(CoordinatorLayout coordinatorLayout, AppBarLayout abl, View target, int type) {
+        super.onStopNestedScroll(coordinatorLayout, abl, target, type);
+    }
+
+    @Override
+    public boolean onMeasureChild(CoordinatorLayout parent, AppBarLayout child, int parentWidthMeasureSpec, int widthUsed, int parentHeightMeasureSpec, int heightUsed) {
+        return super.onMeasureChild(parent, child, parentWidthMeasureSpec, widthUsed, parentHeightMeasureSpec, heightUsed);
+    }
+
+    @Override
+    public Parcelable onSaveInstanceState(CoordinatorLayout parent, AppBarLayout abl) {
+        return super.onSaveInstanceState(parent, abl);
+    }
+
+    @Override
+    public void onRestoreInstanceState(CoordinatorLayout parent, AppBarLayout appBarLayout, Parcelable state) {
+        super.onRestoreInstanceState(parent, appBarLayout, state);
+    }
+
+    @Override
+    public boolean onNestedPreFling(@NonNull CoordinatorLayout coordinatorLayout, @NonNull AppBarLayout child, @NonNull View target, float velocityX, float velocityY) {
+
+        if (velocityY != 0) {
+            if (velocityY < 0) {
+                // We're flinging down
+                int val = child.getBottom();
+                if (val != 0) {
+                    final int targetScroll =
+                            +child.getDownNestedPreScrollRange();
+                    animateOffsetTo(coordinatorLayout, child, targetScroll, velocityY);
+                }
+
+            } else {
+                // We're flinging up
+                int val = child.getBottom();
+                if (val != 0) {
+                    final int targetScroll = -child.getUpNestedPreScrollRange();
+                    if (getTopBottomOffsetForScrollingSibling() > targetScroll) {
+                        animateOffsetTo(coordinatorLayout, child, targetScroll, velocityY);
+                    }
+                }
+            }
+        }
+
+        return super.onNestedPreFling(coordinatorLayout, child, target, velocityX, velocityY);
+    }
+
+    private void animateOffsetTo(final CoordinatorLayout coordinatorLayout,
+                                 final AppBarLayout child, final int offset, float velocity) {
+        final int distance = Math.abs(getTopBottomOffsetForScrollingSibling() - offset);
+
+        final int duration;
+        velocity = Math.abs(velocity);
+        if (velocity > 0) {
+            duration = 3 * Math.round(1000 * (distance / velocity));
+        } else {
+            final float distanceRatio = (float) distance / child.getHeight();
+            duration = (int) ((distanceRatio + 1) * 150);
+        }
+
+        animateOffsetWithDuration(coordinatorLayout, child, offset, duration);
+    }
+
+    private void animateOffsetWithDuration(final CoordinatorLayout coordinatorLayout,
+                                           final AppBarLayout child, final int offset, final int duration) {
+        final int currentOffset = getTopBottomOffsetForScrollingSibling();
+        if (currentOffset == offset) {
+            if (mOffsetAnimator != null && mOffsetAnimator.isRunning()) {
+                mOffsetAnimator.cancel();
+            }
+            return;
+        }
+
+        if (mOffsetAnimator == null) {
+            mOffsetAnimator = new ValueAnimator();
+            mOffsetAnimator.setInterpolator(AnimationUtils.DECELERATE_INTERPOLATOR);
+            mOffsetAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
+                @Override
+                public void onAnimationUpdate(ValueAnimator animator) {
+                    setHeaderTopBottomOffset(coordinatorLayout, child,
+                            (Integer) animator.getAnimatedValue());
+                }
+            });
+        } else {
+            mOffsetAnimator.cancel();
+        }
+
+        mOffsetAnimator.setDuration(Math.min(duration, MAX_OFFSET_ANIMATION_DURATION));
+        mOffsetAnimator.setIntValues(currentOffset, offset);
+        mOffsetAnimator.start();
+    }
+}

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

@@ -1,10 +1,8 @@
 package org.schabi.newpipe.fragments.detail;
 
-import android.support.annotation.Nullable;
 import android.support.v4.app.Fragment;
 import android.support.v4.app.FragmentManager;
 import android.support.v4.app.FragmentPagerAdapter;
-import android.support.v4.view.PagerAdapter;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -29,12 +27,6 @@ public class TabAdaptor extends FragmentPagerAdapter {
         return mFragmentList.size();
     }
 
-    @Nullable
-    @Override
-    public CharSequence getPageTitle(int position) {
-        return mFragmentTitleList.get(position);
-    }
-
     @Override
     public long getItemId(int position) {
         // give an ID different from position when position has been changed

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

@@ -29,7 +29,6 @@ import android.text.method.LinkMovementMethod;
 import android.text.util.Linkify;
 import android.util.DisplayMetrics;
 import android.util.Log;
-import android.util.TypedValue;
 import android.view.LayoutInflater;
 import android.view.Menu;
 import android.view.MenuInflater;
@@ -39,7 +38,6 @@ import android.view.View;
 import android.view.ViewGroup;
 import android.widget.AdapterView;
 import android.widget.FrameLayout;
-import android.widget.ImageButton;
 import android.widget.ImageView;
 import android.widget.LinearLayout;
 import android.widget.RelativeLayout;
@@ -56,8 +54,6 @@ import org.schabi.newpipe.ReCaptchaActivity;
 import org.schabi.newpipe.download.DownloadDialog;
 import org.schabi.newpipe.extractor.InfoItem;
 import org.schabi.newpipe.extractor.NewPipe;
-import org.schabi.newpipe.extractor.StreamingService;
-import org.schabi.newpipe.extractor.comments.CommentsInfo;
 import org.schabi.newpipe.extractor.exceptions.ContentNotAvailableException;
 import org.schabi.newpipe.extractor.exceptions.ExtractionException;
 import org.schabi.newpipe.extractor.exceptions.ParsingException;
@@ -72,7 +68,6 @@ import org.schabi.newpipe.fragments.BackPressable;
 import org.schabi.newpipe.fragments.BaseStateFragment;
 import org.schabi.newpipe.fragments.list.comments.CommentsFragment;
 import org.schabi.newpipe.fragments.list.videos.RelatedVideosFragment;
-import org.schabi.newpipe.info_list.InfoItemBuilder;
 import org.schabi.newpipe.info_list.InfoItemDialog;
 import org.schabi.newpipe.local.dialog.PlaylistAppendDialog;
 import org.schabi.newpipe.local.history.HistoryRecordManager;
@@ -91,11 +86,9 @@ import org.schabi.newpipe.util.InfoCache;
 import org.schabi.newpipe.util.ListHelper;
 import org.schabi.newpipe.util.Localization;
 import org.schabi.newpipe.util.NavigationHelper;
-import org.schabi.newpipe.util.OnClickGesture;
 import org.schabi.newpipe.util.PermissionHelper;
 import org.schabi.newpipe.util.StreamItemAdapter;
 import org.schabi.newpipe.util.StreamItemAdapter.StreamSizeWrapper;
-import org.schabi.newpipe.util.ThemeHelper;
 
 import java.io.Serializable;
 import java.util.Collection;
@@ -964,24 +957,6 @@ public class VideoDetailFragment
                 }));
     }
 
-    private View getSeparatorView() {
-        View separator = new View(activity);
-        LinearLayout.LayoutParams params =
-                new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 1);
-        int m8 = (int) TypedValue.applyDimension(
-                TypedValue.COMPLEX_UNIT_DIP, 8, getResources().getDisplayMetrics());
-        int m5 = (int) TypedValue.applyDimension(
-                TypedValue.COMPLEX_UNIT_DIP, 5, getResources().getDisplayMetrics());
-        params.setMargins(m8, m5, m8, m5);
-        separator.setLayoutParams(params);
-
-        TypedValue typedValue = new TypedValue();
-        activity.getTheme().resolveAttribute(R.attr.separator_color, typedValue, true);
-        separator.setBackgroundColor(typedValue.data);
-
-        return separator;
-    }
-
     private void setHeightThumbnail() {
         final DisplayMetrics metrics = getResources().getDisplayMetrics();
         boolean isPortrait = metrics.heightPixels > metrics.widthPixels;

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

@@ -22,9 +22,9 @@ import org.schabi.newpipe.extractor.playlist.PlaylistInfoItem;
 import org.schabi.newpipe.extractor.stream.StreamInfoItem;
 import org.schabi.newpipe.fragments.BaseStateFragment;
 import org.schabi.newpipe.fragments.OnScrollBelowItemsListener;
-import org.schabi.newpipe.local.dialog.PlaylistAppendDialog;
 import org.schabi.newpipe.info_list.InfoItemDialog;
 import org.schabi.newpipe.info_list.InfoListAdapter;
+import org.schabi.newpipe.local.dialog.PlaylistAppendDialog;
 import org.schabi.newpipe.player.playqueue.SinglePlayQueue;
 import org.schabi.newpipe.report.ErrorActivity;
 import org.schabi.newpipe.util.NavigationHelper;

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

@@ -1,7 +1,9 @@
 package org.schabi.newpipe.fragments.list.videos;
 
 import android.content.Context;
+import android.content.SharedPreferences;
 import android.os.Bundle;
+import android.preference.PreferenceManager;
 import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 import android.view.LayoutInflater;
@@ -9,34 +11,31 @@ import android.view.Menu;
 import android.view.MenuInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.CompoundButton;
+import android.widget.Switch;
 
 import org.schabi.newpipe.R;
-import org.schabi.newpipe.extractor.InfoItem;
 import org.schabi.newpipe.extractor.ListExtractor;
-import org.schabi.newpipe.extractor.ListInfo;
 import org.schabi.newpipe.extractor.NewPipe;
-import org.schabi.newpipe.extractor.comments.CommentsInfo;
-import org.schabi.newpipe.extractor.exceptions.ExtractionException;
-import org.schabi.newpipe.extractor.kiosk.KioskInfo;
 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.report.UserAction;
-import org.schabi.newpipe.util.ExtractorHelper;
 import org.schabi.newpipe.util.RelatedStreamInfo;
 
-import java.util.List;
+import java.io.Serializable;
 
 import io.reactivex.Single;
 import io.reactivex.disposables.CompositeDisposable;
 
-public class RelatedVideosFragment extends BaseListInfoFragment<RelatedStreamInfo> {
+public class RelatedVideosFragment extends BaseListInfoFragment<RelatedStreamInfo> implements SharedPreferences.OnSharedPreferenceChangeListener{
 
     private CompositeDisposable disposables = new CompositeDisposable();
     private RelatedStreamInfo relatedStreamInfo;
     /*//////////////////////////////////////////////////////////////////////////
     // Views
     //////////////////////////////////////////////////////////////////////////*/
+    private View headerRootLayout;
+    private Switch aSwitch;
 
 
 
@@ -74,6 +73,28 @@ public class RelatedVideosFragment extends BaseListInfoFragment<RelatedStreamInf
         if (disposables != null) disposables.clear();
     }
 
+    protected View getListHeader(){
+        if(relatedStreamInfo != null && relatedStreamInfo.getNextStream() != null){
+            headerRootLayout = activity.getLayoutInflater().inflate(R.layout.related_streams_header, itemsList, false);
+            aSwitch = headerRootLayout.findViewById(R.id.autoplay_switch);
+
+            SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(getContext());
+            Boolean autoplay = pref.getBoolean(getString(R.string.auto_queue_key), false);
+            aSwitch.setChecked(autoplay);
+            aSwitch.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
+                @Override
+                public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
+                    SharedPreferences.Editor prefEdit = PreferenceManager.getDefaultSharedPreferences(getContext()).edit();
+                    prefEdit.putBoolean(getString(R.string.auto_queue_key), b);
+                    prefEdit.apply();
+                }
+            });
+            return headerRootLayout;
+        }else{
+            return null;
+        }
+    }
+
     @Override
     protected Single<ListExtractor.InfoItemsPage> loadMoreItemsLogic() {
         return Single.fromCallable(() -> ListExtractor.InfoItemsPage.emptyPage());
@@ -145,6 +166,33 @@ public class RelatedVideosFragment extends BaseListInfoFragment<RelatedStreamInf
 
     private void setInitialData(StreamInfo info) {
         super.setInitialData(info.getServiceId(), info.getUrl(), info.getName());
-        this.relatedStreamInfo = RelatedStreamInfo.getInfo(info);
+        if(this.relatedStreamInfo == null) this.relatedStreamInfo = RelatedStreamInfo.getInfo(info);
+    }
+
+
+    private static final String INFO_KEY = "related_info_key";
+
+    @Override
+    public void onSaveInstanceState(Bundle outState) {
+        super.onSaveInstanceState(outState);
+        outState.putSerializable(INFO_KEY, relatedStreamInfo);
+    }
+
+    @Override
+    protected void onRestoreInstanceState(@NonNull Bundle savedState) {
+        super.onRestoreInstanceState(savedState);
+        if (savedState != null) {
+            Serializable serializable = savedState.getSerializable(INFO_KEY);
+            if(serializable instanceof RelatedStreamInfo){
+                this.relatedStreamInfo = (RelatedStreamInfo) serializable;
+            }
+        }
+    }
+
+    @Override
+    public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String s) {
+        SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(getContext());
+        Boolean autoplay = pref.getBoolean(getString(R.string.auto_queue_key), false);
+        aSwitch.setChecked(autoplay);
     }
 }

app/src/main/java/org/schabi/newpipe/util/RelatedStreamInfo.java

@@ -4,11 +4,15 @@ 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 org.schabi.newpipe.extractor.stream.StreamInfoItem;
 
+import java.util.ArrayList;
 import java.util.Collections;
+import java.util.List;
 
 public class RelatedStreamInfo extends ListInfo<InfoItem> {
 
+    private StreamInfoItem nextStream;
 
     public RelatedStreamInfo(int serviceId, ListLinkHandler listUrlIdHandler, String name) {
         super(serviceId, listUrlIdHandler, name);
@@ -17,7 +21,21 @@ public class RelatedStreamInfo extends ListInfo<InfoItem> {
     public static RelatedStreamInfo getInfo(StreamInfo info) {
         ListLinkHandler handler = new ListLinkHandler(info.getOriginalUrl(), info.getUrl(), info.getId(), Collections.emptyList(), null);
         RelatedStreamInfo relatedStreamInfo = new RelatedStreamInfo(info.getServiceId(), handler, info.getName());
-        relatedStreamInfo.setRelatedItems(info.getRelatedStreams());
+        List<InfoItem> streams = new ArrayList<>();
+        if(info.getNextVideo() != null){
+            streams.add(info.getNextVideo());
+        }
+        streams.addAll(info.getRelatedStreams());
+        relatedStreamInfo.setRelatedItems(streams);
+        relatedStreamInfo.setNextStream(info.getNextVideo());
         return relatedStreamInfo;
     }
+
+    public StreamInfoItem getNextStream() {
+        return nextStream;
+    }
+
+    public void setNextStream(StreamInfoItem nextStream) {
+        this.nextStream = nextStream;
+    }
 }

app/src/main/res/drawable/default_dot.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item>
+        <shape
+            android:innerRadius="0dp"
+            android:shape="ring"
+            android:thickness="4dp"
+            android:useLevel="false">
+            <solid android:color="@android:color/darker_gray"/>
+        </shape>
+    </item>
+</layer-list>

app/src/main/res/drawable/selected_dot.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item>
+        <shape
+            android:innerRadius="0dp"
+            android:shape="ring"
+            android:thickness="6dp"
+            android:useLevel="false">
+            <solid android:color="@android:color/darker_gray"/>
+        </shape>
+    </item>
+</layer-list>

app/src/main/res/drawable/tab_selector.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <item android:drawable="@drawable/selected_dot"
+        android:state_selected="true"/>
+
+    <item android:drawable="@drawable/default_dot"/>
+</selector>

app/src/main/res/layout/fragment_comments.xml

@@ -65,6 +65,7 @@
         android:layout_width="match_parent"
         android:layout_height="4dp"
         android:background="?attr/toolbar_shadow_drawable"
-        android:layout_alignParentTop="true"/>
+        android:layout_alignParentTop="true"
+        android:visibility="gone"/>
 
 </RelativeLayout>

app/src/main/res/layout/fragment_related_streams.xml

@@ -65,6 +65,7 @@
         android:layout_width="match_parent"
         android:layout_height="4dp"
         android:background="?attr/toolbar_shadow_drawable"
-        android:layout_alignParentTop="true"/>
+        android:layout_alignParentTop="true"
+        android:visibility="gone"/>
 
 </RelativeLayout>

app/src/main/res/layout/fragment_video_detail.xml

@@ -10,12 +10,16 @@
     <android.support.design.widget.CoordinatorLayout
         android:id="@+id/detail_main_content"
         android:layout_width="match_parent"
-        android:layout_height="match_parent">
+        android:layout_height="match_parent"
+        android:fitsSystemWindows="true">
 
         <android.support.design.widget.AppBarLayout
             android:id="@+id/appbarlayout"
             android:layout_width="match_parent"
-            android:layout_height="wrap_content">
+            android:layout_height="wrap_content"
+            android:fitsSystemWindows="true"
+            app:elevation="0dp"
+            app:layout_behavior="android.support.design.widget.FlingBehavior">
 
             <android.support.design.widget.CollapsingToolbarLayout
                 android:layout_width="match_parent"
@@ -458,21 +462,27 @@
                 </LinearLayout>
             </RelativeLayout>
 
-            <android.support.design.widget.TabLayout
-                android:id="@+id/tablayout"
-                android:layout_width="match_parent"
-                android:layout_height="50dp"
-                android:background="?android:windowBackground">
-
-            </android.support.design.widget.TabLayout>
-
         </android.support.design.widget.AppBarLayout>
 
+
         <android.support.v4.view.ViewPager
             android:id="@+id/viewpager"
             android:layout_width="match_parent"
             android:layout_height="match_parent"
             app:layout_behavior="@string/appbar_scrolling_view_behavior" />
 
+
+        <android.support.design.widget.TabLayout
+            android:id="@+id/tablayout"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_gravity="bottom|center"
+            android:background="@color/transparent_background_color"
+            app:tabBackground="@drawable/tab_selector"
+            app:tabGravity="center"
+            app:tabIndicatorHeight="0dp">
+
+        </android.support.design.widget.TabLayout>
+
     </android.support.design.widget.CoordinatorLayout>
 </FrameLayout>

app/src/main/res/layout/related_streams_header.xml

@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/channel_header_layout"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:background="?attr/selectableItemBackground">
+
+    <TextView
+        android:id="@+id/next_stream_title"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginLeft="12dp"
+        android:layout_marginTop="5dp"
+        android:text="@string/next_video_title"
+        android:textAppearance="?android:attr/textAppearanceMedium"
+        android:textSize="12sp"
+        tools:ignore="RtlHardcoded" />
+
+    <Switch
+        android:id="@+id/autoplay_switch"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_alignParentEnd="true"
+        android:layout_alignParentRight="true"
+        android:layout_alignParentTop="true"
+        android:paddingRight="5dp"
+        android:switchPadding="5dp"
+        android:textSize="12sp"
+        android:textColor="@android:color/tab_indicator_text"
+        android:text="@string/autoplay_title" />
+
+</RelativeLayout>

app/src/main/res/values/strings.xml

@@ -95,7 +95,8 @@
     <string name="resume_on_audio_focus_gain_title">Resume on focus gain</string>
     <string name="resume_on_audio_focus_gain_summary">Continue playing after interruptions (e.g. phone calls)</string>
     <string name="download_dialog_title">Download</string>
-    <string name="next_video_title">Next video</string>
+    <string name="next_video_title">Up next</string>
+    <string name="autoplay_title">Autoplay</string>
     <string name="show_next_and_similar_title">Show \'next\' and \'similar\' videos</string>
     <string name="show_hold_to_append_title">Show \"hold to append\" tip</string>
     <string name="show_hold_to_append_summary">Show tip when background or popup button is pressed on video details page</string>