-Added helper text on click for background and popup button on detail fragment for feature discovery.

-Fixed popup video queuing causes existing popup player to change quality.

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

@@ -28,6 +28,7 @@ import android.view.LayoutInflater;
 import android.view.Menu;
 import android.view.MenuInflater;
 import android.view.MenuItem;
+import android.view.MotionEvent;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.FrameLayout;
@@ -144,6 +145,7 @@ public class VideoDetailFragment extends BaseStateFragment<StreamInfo> implement
 
     private TextView detailControlsBackground;
     private TextView detailControlsPopup;
+    private TextView appendControlsDetail;
 
     private LinearLayout videoDescriptionRootLayout;
     private TextView videoUploadDateView;
@@ -419,6 +421,7 @@ public class VideoDetailFragment extends BaseStateFragment<StreamInfo> implement
 
         detailControlsBackground = rootView.findViewById(R.id.detail_controls_background);
         detailControlsPopup = rootView.findViewById(R.id.detail_controls_popup);
+        appendControlsDetail = rootView.findViewById(R.id.touch_append_detail);
 
         videoDescriptionRootLayout = rootView.findViewById(R.id.detail_description_root_layout);
         videoUploadDateView = rootView.findViewById(R.id.detail_upload_date_view);
@@ -469,6 +472,22 @@ public class VideoDetailFragment extends BaseStateFragment<StreamInfo> implement
         detailControlsPopup.setLongClickable(true);
         detailControlsBackground.setOnLongClickListener(this);
         detailControlsPopup.setOnLongClickListener(this);
+        detailControlsBackground.setOnTouchListener(getOnControlsTouchListener());
+        detailControlsPopup.setOnTouchListener(getOnControlsTouchListener());
+    }
+
+    private View.OnTouchListener getOnControlsTouchListener() {
+        return new View.OnTouchListener() {
+            @Override
+            public boolean onTouch(View view, MotionEvent motionEvent) {
+                if (motionEvent.getAction() == MotionEvent.ACTION_DOWN) {
+                    appendControlsDetail.setVisibility(View.VISIBLE);
+                } else {
+                    appendControlsDetail.setVisibility(View.GONE);
+                }
+                return false;
+            }
+        };
     }
 
     private void initThumbnailViews(StreamInfo info) {

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

@@ -289,9 +289,7 @@ public final class BackgroundPlayer extends Service {
         }
 
         @Override
-        public void handleIntent(Intent intent) {
+        protected void postProcess(@NonNull final Intent intent) {
-            super.handleIntent(intent);
-
             resetNotification();
             startForeground(NOTIFICATION_ID, notBuilder.build());
 

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

@@ -251,6 +251,8 @@ public abstract class BasePlayer implements Player.EventListener,
                 });
     }
 
+    protected abstract void postProcess(@NonNull final Intent intent);
+
     public void handleIntent(Intent intent) {
         if (DEBUG) Log.d(TAG, "handleIntent() called with: intent = [" + intent + "]");
         if (intent == null) return;
@@ -284,6 +286,7 @@ public abstract class BasePlayer implements Player.EventListener,
 
         // Good to go...
         initPlayback(this, queue);
+        postProcess(intent);
     }
 
     protected void initPlayback(@NonNull final PlaybackListener listener, @NonNull final PlayQueue queue) {

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

@@ -270,11 +270,7 @@ public final class MainVideoPlayer extends Activity {
         @Override
         public int getPreferredResolution() {
             if (sharedPreferences == null || context == null) return Integer.MAX_VALUE;
-
+            return Localization.resolutionOf(sharedPreferences.getString(context.getString(R.string.default_resolution_key), context.getString(R.string.default_resolution_value)));
-            return Localization.resolutionOf(sharedPreferences.getString(
-                    context.getString(R.string.default_resolution_key),
-                    context.getString(R.string.default_resolution_value)
-            ));
         }
 
         /*//////////////////////////////////////////////////////////////////////////

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

@@ -411,10 +411,7 @@ public final class PopupVideoPlayer extends Service {
         @Override
         public int getPreferredResolution() {
             if (sharedPreferences == null || context == null) return Integer.MAX_VALUE;
-            return Localization.resolutionOf(sharedPreferences.getString(
+            return Localization.resolutionOf(sharedPreferences.getString(context.getString(R.string.default_popup_resolution_key), context.getString(R.string.default_popup_resolution_value)));
-                    context.getString(R.string.default_popup_resolution_key),
-                    context.getString(R.string.default_popup_resolution_value)
-            ));
         }
 
         @Override

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

@@ -217,11 +217,7 @@ public abstract class VideoPlayer extends BasePlayer implements SimpleExoPlayer.
     }
 
     @Override
-    @SuppressWarnings("unchecked")
+    protected void postProcess(@NonNull final Intent intent) {
-    public void handleIntent(Intent intent) {
-        super.handleIntent(intent);
-        if (intent == null) return;
-
         final int resolutionTarget = intent.getIntExtra(MAX_RESOLUTION, getPreferredResolution());
         trackSelector.setParameters(
                 // Assume video is horizontal

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

@@ -1,13 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
-
+<FrameLayout
-<RelativeLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:id="@+id/video_item_detail"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent">
-    <FrameLayout
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:focusableInTouchMode="true">
@@ -32,6 +28,7 @@
                 android:layout_height="wrap_content"
                 android:background="@android:color/black"
                 android:clickable="true"
+                android:focusable="true"
                 android:foreground="?attr/selectableItemBackground">
 
                 <ImageView
@@ -56,6 +53,23 @@
                     tools:ignore="ContentDescription"
                     tools:visibility="visible"/>
 
+                <TextView
+                    android:id="@+id/touch_append_detail"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:background="#64000000"
+                    android:paddingBottom="10dp"
+                    android:paddingLeft="30dp"
+                    android:paddingRight="30dp"
+                    android:paddingTop="10dp"
+                    android:layout_gravity="center"
+                    android:textColor="@android:color/white"
+                    android:textSize="26sp"
+                    android:textStyle="bold"
+                    android:text="@string/hold_to_append"
+                    android:visibility="gone"
+                    tools:ignore="RtlHardcoded"
+                    tools:visibility="visible"/>
             </FrameLayout>
 
             <!-- CONTENT -->
@@ -72,6 +86,7 @@
                     android:layout_height="wrap_content"
                     android:background="?attr/selectableItemBackground"
                     android:clickable="true"
+                    android:focusable="true"
                     android:paddingLeft="12dp"
                     android:paddingRight="12dp">
 
@@ -227,10 +242,12 @@
                             android:layout_width="80dp"
                             android:layout_height="55dp"
                             android:layout_alignParentRight="true"
+                            android:layout_alignParentEnd="true"
                             android:layout_alignParentTop="true"
                             android:layout_gravity="center_vertical"
                             android:background="?attr/selectableItemBackgroundBorderless"
                             android:clickable="true"
+                            android:focusable="true"
                             android:contentDescription="@string/open_in_popup_mode"
                             android:drawableTop="?attr/popup"
                             android:gravity="center"
@@ -246,8 +263,10 @@
                             android:layout_alignParentTop="true"
                             android:layout_gravity="center_vertical"
                             android:layout_toLeftOf="@id/detail_controls_popup"
+                            android:layout_toStartOf="@id/detail_controls_popup"
                             android:background="?attr/selectableItemBackgroundBorderless"
                             android:clickable="true"
+                            android:focusable="true"
                             android:contentDescription="@string/play_audio"
                             android:drawableTop="?attr/audio"
                             android:gravity="center"
@@ -398,12 +417,4 @@
             </RelativeLayout>
         </LinearLayout>
     </com.nirhart.parallaxscroll.views.ParallaxScrollView>
-    </FrameLayout>
+</FrameLayout>
-
-
-    <View
-        android:layout_width="match_parent"
-        android:layout_height="4dp"
-        android:background="?attr/toolbar_shadow_drawable"
-        android:layout_alignParentTop="true"/>
-</RelativeLayout>

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

@@ -301,5 +301,5 @@
     <string name="play_queue_remove">Remove</string>
     <string name="play_queue_stream_detail">Details</string>
     <string name="play_queue_audio_settings">Audio Settings</string>
-
+    <string name="hold_to_append">Hold To Append</string>
 </resources>