Player's elements positioning is better for tablet and in multiWindow mode

- status bar got a fix for situation when a phone vendor did not provide status bar height for landscape orientation
- popup will not be init'd twice
- also fixed some non-reproduceable bugs

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

@@ -288,8 +288,8 @@ public class VideoDetailFragment
     }
 
     private void stopService() {
-        getContext().stopService(new Intent(getContext(), MainPlayer.class));
         unbind();
+        getContext().stopService(new Intent(getContext(), MainPlayer.class));
     }
 
 
@@ -325,7 +325,6 @@ public class VideoDetailFragment
         PreferenceManager.getDefaultSharedPreferences(activity)
                 .registerOnSharedPreferenceChangeListener(this);
 
-        startService(false);
         setupBroadcastReceiver();
 
         settingsContentObserver = new ContentObserver(new Handler()) {
@@ -415,6 +414,7 @@ public class VideoDetailFragment
         positionSubscriber = null;
         currentWorker = null;
         disposables = null;
+        bottomSheetBehavior.setBottomSheetCallback(null);
     }
 
     @Override
@@ -688,6 +688,7 @@ public class VideoDetailFragment
         detailControlsPopup.setOnTouchListener(getOnControlsTouchListener());
 
         setupBottomPlayer();
+        startService(false);
     }
 
     private View.OnTouchListener getOnControlsTouchListener() {
@@ -931,8 +932,6 @@ public class VideoDetailFragment
         boolean streamIsTheSame = this.playQueue != null && this.playQueue.equals(playQueue);
         // Situation when user switches from players to main player. All needed data is here, we can start watching
         if (streamIsTheSame) {
-            //TODO not sure about usefulness of this line in the case when user switches from one player to another
-            // handleResult(currentInfo);
             openVideoPlayer();
             return;
         }
@@ -1099,11 +1098,11 @@ public class VideoDetailFragment
 
         PlayQueue queue = setupPlayQueueForIntent(false);
 
-            addVideoPlayerView();
+        // Video view can have elements visible from popup, We hide it here but once it ready the view will be shown in handleIntent()
         playerService.getView().setVisibility(View.GONE);
+        addVideoPlayerView();
 
-            Intent playerIntent = NavigationHelper.getPlayerIntent(
+        Intent playerIntent = NavigationHelper.getPlayerIntent(getContext(), MainPlayer.class, queue, null, true);
-                    getContext(), MainPlayer.class, queue, null, true);
         activity.startService(playerIntent);
     }
 
@@ -1194,7 +1193,7 @@ public class VideoDetailFragment
     }
 
     private void addVideoPlayerView() {
-        if (player == null) return;
+        if (player == null || getView() == null) return;
 
         FrameLayout viewHolder = getView().findViewById(R.id.player_placeholder);
 
@@ -1213,6 +1212,8 @@ public class VideoDetailFragment
     }
 
     private void makeDefaultHeightForVideoPlaceholder() {
+        if (getView() == null) return;
+
         FrameLayout viewHolder = getView().findViewById(R.id.player_placeholder);
         viewHolder.getLayoutParams().height = FrameLayout.LayoutParams.MATCH_PARENT;
         viewHolder.requestLayout();
@@ -1322,6 +1323,8 @@ public class VideoDetailFragment
         if (player != null && player.isInFullscreen()) player.toggleFullscreen();
         // This will show systemUI and pause the player.
         // User can tap on Play button and video will be in fullscreen mode again
+        // Note for tablet: trying to avoid orientation changes since it's not easy to physically rotate the tablet every time
+        if (!PlayerHelper.isTablet(activity))
             activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED);
     }
 
@@ -1356,7 +1359,7 @@ public class VideoDetailFragment
 
         if(relatedStreamsLayout != null){
             if(showRelatedStreams){
-                relatedStreamsLayout.setVisibility(View.INVISIBLE);
+                relatedStreamsLayout.setVisibility(player != null && player.isInFullscreen() ? View.GONE : View.INVISIBLE);
             }else{
                 relatedStreamsLayout.setVisibility(View.GONE);
             }
@@ -1383,7 +1386,7 @@ public class VideoDetailFragment
                 getChildFragmentManager().beginTransaction()
                         .replace(R.id.relatedStreamsLayout, RelatedVideosFragment.getInstance(info))
                         .commitNow();
-                relatedStreamsLayout.setVisibility(View.VISIBLE);
+                relatedStreamsLayout.setVisibility(player != null && player.isInFullscreen() ? View.GONE : View.VISIBLE);
             }
         }
 
@@ -1722,6 +1725,13 @@ public class VideoDetailFragment
 
     @Override
     public void onScreenRotationButtonClicked() {
+        // In tablet user experience will be better if screen will not be rotated from landscape to portrait every time
+        // Just turn on fullscreen mode in landscape orientation
+        if (isLandscape() && PlayerHelper.isTablet(activity)) {
+            player.toggleFullscreen();
+            return;
+        }
+
         int newOrientation = isLandscape() ?
                 ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED
                 : ActivityInfo.SCREEN_ORIENTATION_SENSOR_LANDSCAPE;
@@ -1866,11 +1876,13 @@ public class VideoDetailFragment
         final int peekHeight = getResources().getDimensionPixelSize(R.dimen.mini_player_height);
         if (bottomSheetState != BottomSheetBehavior.STATE_HIDDEN) {
             bottomSheetBehavior.setPeekHeight(peekHeight);
-            if (bottomSheetState == BottomSheetBehavior.STATE_COLLAPSED)
+            if (bottomSheetState == BottomSheetBehavior.STATE_COLLAPSED) {
-                setOverlayLook(appBarLayout, behavior, 1 - MAX_OVERLAY_ALPHA);
+                overlay.setAlpha(MAX_OVERLAY_ALPHA);
-            else if (bottomSheetState == BottomSheetBehavior.STATE_EXPANDED)
+            } else if (bottomSheetState == BottomSheetBehavior.STATE_EXPANDED) {
+                overlay.setAlpha(0);
                 setOverlayElementsClickable(false);
             }
+        }
 
         bottomSheetBehavior.setBottomSheetCallback(new BottomSheetBehavior.BottomSheetCallback() {
             @Override public void onStateChanged(@NonNull View bottomSheet, int newState) {

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

@@ -1155,18 +1155,20 @@ public class VideoPlayerImpl extends VideoPlayer
         // It doesn't include NavigationBar, notches, etc.
         display.getSize(size);
 
-        int width = isFullscreen ? size.x : ViewGroup.LayoutParams.MATCH_PARENT;
+        int spaceBeforeTopControls = getRootView().findViewById(R.id.spaceBeforeControls).getWidth();
+        int widthForTopControls = isFullscreen ? size.x - spaceBeforeTopControls : ViewGroup.LayoutParams.MATCH_PARENT;
+        int widthForBottomControls = isFullscreen ? size.x : ViewGroup.LayoutParams.MATCH_PARENT;
         int gravity = isFullscreen ? (display.getRotation() == Surface.ROTATION_90 ? Gravity.START : Gravity.END) : Gravity.TOP;
 
-        primaryControls.getLayoutParams().width = width;
+        primaryControls.getLayoutParams().width = widthForTopControls;
         ((LinearLayout.LayoutParams) primaryControls.getLayoutParams()).gravity = gravity;
         primaryControls.requestLayout();
 
-        secondaryControls.getLayoutParams().width = width;
+        secondaryControls.getLayoutParams().width = widthForTopControls;
         ((LinearLayout.LayoutParams) secondaryControls.getLayoutParams()).gravity = gravity;
         secondaryControls.requestLayout();
 
-        getBottomControlsRoot().getLayoutParams().width = width;
+        getBottomControlsRoot().getLayoutParams().width = widthForBottomControls;
         RelativeLayout.LayoutParams bottomParams = ((RelativeLayout.LayoutParams) getBottomControlsRoot().getLayoutParams());
         bottomParams.removeRule(RelativeLayout.ALIGN_PARENT_START);
         bottomParams.removeRule(RelativeLayout.ALIGN_PARENT_END);
@@ -1174,15 +1176,33 @@ public class VideoPlayerImpl extends VideoPlayer
         getBottomControlsRoot().requestLayout();
 
         ViewGroup controlsRoot = getRootView().findViewById(R.id.playbackControlRoot);
-        controlsRoot.getLayoutParams().height = isFullscreen ? size.y : ViewGroup.LayoutParams.MATCH_PARENT;
+        // In tablet navigationBar located at the bottom of the screen. And the only situation when we need to set custom height is
+        // in fullscreen mode in tablet in non-multiWindow mode. Other than that MATCH_PARENT is good
+        controlsRoot.getLayoutParams().height = isFullscreen && !isInMultiWindow() && PlayerHelper.isTablet(service)
+                ? size.y
+                : ViewGroup.LayoutParams.MATCH_PARENT;
         controlsRoot.requestLayout();
 
+        int topPadding = isFullscreen && !isInMultiWindow() ? getStatusBarHeight() : 0;
+        getRootView().findViewById(R.id.playbackWindowRoot).setPadding(0, topPadding, 0, 0);
+        getRootView().findViewById(R.id.playbackWindowRoot).requestLayout();
+    }
+
+    private int getStatusBarHeight() {
         int statusBarHeight = 0;
         int resourceId = service.getResources().getIdentifier("status_bar_height_landscape", "dimen", "android");
         if (resourceId > 0) statusBarHeight = service.getResources().getDimensionPixelSize(resourceId);
+        if (statusBarHeight == 0) {
+            // Some devices provide wrong value for status bar height in landscape mode, this is workaround
+            DisplayMetrics metrics = getRootView().getResources().getDisplayMetrics();
+            statusBarHeight = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 24, metrics);
+        }
+        return statusBarHeight;
+    }
 
-        getRootView().findViewById(R.id.playbackWindowRoot).setPadding(0, isFullscreen ? statusBarHeight : 0, 0, 0);
+    private boolean isInMultiWindow() {
-        getRootView().findViewById(R.id.playbackWindowRoot).requestLayout();
+        AppCompatActivity parent = getParentActivity();
+        return Build.VERSION.SDK_INT >= Build.VERSION_CODES.N && parent != null && parent.isInMultiWindowMode();
     }
 
     private void updatePlaybackButtons() {
@@ -1287,6 +1307,9 @@ public class VideoPlayerImpl extends VideoPlayer
     private void initPopup() {
         if (DEBUG) Log.d(TAG, "initPopup() called");
 
+        // Popup is already added to windowManager
+        if (getRootView().getLayoutParams() instanceof WindowManager.LayoutParams) return;
+
         updateScreenSize();
 
         final boolean popupRememberSizeAndPos = PlayerHelper.isRememberingPopupDimensions(service);
@@ -1326,6 +1349,10 @@ public class VideoPlayerImpl extends VideoPlayer
     @SuppressLint("RtlHardcoded")
     private void initPopupCloseOverlay() {
         if (DEBUG) Log.d(TAG, "initPopupCloseOverlay() called");
+
+        // closeOverlayView is already added to windowManager
+        if (closeOverlayView != null) return;
+
         closeOverlayView = View.inflate(service, R.layout.player_popup_close_overlay, null);
         closeOverlayButton = closeOverlayView.findViewById(R.id.closeButton);
 
@@ -1493,6 +1520,7 @@ public class VideoPlayerImpl extends VideoPlayer
 
                     private void end() {
                         windowManager.removeView(closeOverlayView);
+                        closeOverlayView = null;
 
                         service.onDestroy();
                     }
@@ -1653,10 +1681,6 @@ public class VideoPlayerImpl extends VideoPlayer
         return closeOverlayButton;
     }
 
-    public View getCloseOverlayView() {
-        return closeOverlayView;
-    }
-
     public View getClosingOverlayView() {
         return closingOverlayView;
     }

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

@@ -2,6 +2,7 @@ package org.schabi.newpipe.player.helper;
 
 import android.content.Context;
 import android.content.SharedPreferences;
+import android.content.res.Configuration;
 import android.os.Build;
 import android.preference.PreferenceManager;
 import android.provider.Settings;
@@ -329,6 +330,11 @@ public class PlayerHelper {
                 context.getContentResolver(), Settings.System.ACCELEROMETER_ROTATION, 0) == 1);
     }
 
+    public static boolean isTablet(@NonNull final Context context) {
+        return (context.getResources().getConfiguration().screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK)
+                >= Configuration.SCREENLAYOUT_SIZE_LARGE;
+    }
+
     ////////////////////////////////////////////////////////////////////////////
     // Private helpers
     ////////////////////////////////////////////////////////////////////////////

app/src/main/res/layout-large-land/activity_main_player.xml

@@ -161,7 +161,6 @@
                 android:orientation="vertical"
                 android:gravity="top"
                 android:paddingTop="4dp"
-                android:paddingEnd="6dp"
                 android:layout_toEndOf="@id/spaceBeforeControls"
                 android:baselineAligned="false">
 
@@ -172,7 +171,6 @@
                 android:baselineAligned="false"
                 android:gravity="top"
                 android:paddingBottom="7dp"
-                android:paddingLeft="2dp"
                 tools:ignore="RtlHardcoded">
 
                 <ImageButton

app/src/main/res/layout-large-land/fragment_video_detail.xml

@@ -557,8 +557,7 @@
 			android:id="@+id/overlay_layout"
 			android:layout_width="match_parent"
 			android:layout_height="match_parent"
-			android:alpha="0"
+			android:alpha="0.9"
-			tools:alpha="1"
 			android:paddingLeft="@dimen/video_item_search_padding"
 			android:paddingRight="@dimen/video_item_search_padding"
 			android:background="?attr/windowBackground" >

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

@@ -159,7 +159,6 @@
                 android:orientation="vertical"
                 android:gravity="top"
                 android:paddingTop="4dp"
-                android:paddingEnd="6dp"
                 android:layout_toEndOf="@id/spaceBeforeControls"
                 android:baselineAligned="false">
 
@@ -170,7 +169,6 @@
                 android:baselineAligned="false"
                 android:gravity="top"
                 android:paddingBottom="7dp"
-                android:paddingLeft="2dp"
                 tools:ignore="RtlHardcoded">
 
                 <ImageButton

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

@@ -547,8 +547,7 @@
 		android:id="@+id/overlay_layout"
 		android:layout_width="match_parent"
 		android:layout_height="match_parent"
-		android:alpha="0"
+		android:alpha="0.9"
-		tools:alpha="1"
 		android:background="?attr/windowBackground" >
 
 		<ImageButton