Added double tap on album cover to toggle favorite

app/src/main/java/com/kabouzeid/gramophone/ui/fragments/player/AbsPlayerFragment.java

@@ -49,7 +49,7 @@ public abstract class AbsPlayerFragment extends AbsMusicServiceFragment implemen
                 new SleepTimerDialog().show(getFragmentManager(), "SET_SLEEP_TIMER");
                 return true;
             case R.id.action_toggle_favorite:
-                MusicUtil.toggleFavorite(getActivity(), song);
+                toggleFavorite(song);
                 return true;
             case R.id.action_share:
                 SongShareDialog.create(song).show(getFragmentManager(), "SHARE_SONG");
@@ -83,6 +83,10 @@ public abstract class AbsPlayerFragment extends AbsMusicServiceFragment implemen
         return false;
     }
 
+    protected void toggleFavorite(Song song){
+        MusicUtil.toggleFavorite(getActivity(), song);
+    }
+
     public abstract void onShow();
 
     public abstract void onHide();

app/src/main/java/com/kabouzeid/gramophone/ui/fragments/player/PlayerAlbumCoverFragment.java

@@ -4,7 +4,9 @@ import android.animation.Animator;
 import android.os.Bundle;
 import android.support.annotation.ColorInt;
 import android.support.v4.view.ViewPager;
+import android.view.GestureDetector;
 import android.view.LayoutInflater;
+import android.view.MotionEvent;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.animation.AccelerateInterpolator;
@@ -32,7 +34,7 @@ public class PlayerAlbumCoverFragment extends AbsMusicServiceFragment implements
     @Bind(R.id.player_favorite_icon)
     ImageView favoriteIcon;
 
-    private OnColorChangedListener onColorChangedListener;
+    private Callbacks callbacks;
     private int currentPosition;
 
     @Override
@@ -49,6 +51,23 @@ public class PlayerAlbumCoverFragment extends AbsMusicServiceFragment implements
         viewPager.setOffscreenPageLimit(2);
         updatePlayingQueue();
         viewPager.addOnPageChangeListener(this);
+        viewPager.setOnTouchListener(new View.OnTouchListener() {
+            GestureDetector gestureDetector = new GestureDetector(getActivity(), new GestureDetector.SimpleOnGestureListener() {
+                @Override
+                public boolean onDoubleTap(MotionEvent e) {
+                    if (callbacks != null) {
+                        callbacks.onFavoriteToggled();
+                        return true;
+                    }
+                    return super.onDoubleTap(e);
+                }
+            });
+
+            @Override
+            public boolean onTouch(View v, MotionEvent event) {
+                return gestureDetector.onTouchEvent(event);
+            }
+        });
     }
 
     @Override
@@ -144,14 +163,16 @@ public class PlayerAlbumCoverFragment extends AbsMusicServiceFragment implements
     }
 
     private void notifyColorChange(int color) {
-        if (onColorChangedListener != null) onColorChangedListener.onColorChanged(color);
+        if (callbacks != null) callbacks.onColorChanged(color);
     }
 
-    public void setOnColorChangedListener(OnColorChangedListener listener) {
+    public void setCallbacks(Callbacks listener) {
-        onColorChangedListener = listener;
+        callbacks = listener;
     }
 
-    interface OnColorChangedListener {
+    interface Callbacks {
         void onColorChanged(int color);
+
+        void onFavoriteToggled();
     }
 }

app/src/main/java/com/kabouzeid/gramophone/ui/fragments/player/PlayerFragment.java

@@ -11,7 +11,6 @@ import android.support.v7.widget.CardView;
 import android.support.v7.widget.RecyclerView;
 import android.support.v7.widget.Toolbar;
 import android.view.LayoutInflater;
-import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewAnimationUtils;
 import android.view.ViewGroup;
@@ -39,7 +38,7 @@ import org.solovyev.android.views.llm.LinearLayoutManager;
 import butterknife.Bind;
 import butterknife.ButterKnife;
 
-public class PlayerFragment extends AbsPlayerFragment implements PlayerAlbumCoverFragment.OnColorChangedListener, SlidingUpPanelLayout.PanelSlideListener {
+public class PlayerFragment extends AbsPlayerFragment implements PlayerAlbumCoverFragment.Callbacks, SlidingUpPanelLayout.PanelSlideListener {
     public static final String TAG = PlayerFragment.class.getSimpleName();
 
     @Bind(R.id.player_toolbar)
@@ -172,7 +171,7 @@ public class PlayerFragment extends AbsPlayerFragment implements PlayerAlbumCove
         playbackControlsFragment = (PlaybackControlsFragment) getChildFragmentManager().findFragmentById(R.id.playback_controls_fragment);
         playerAlbumCoverFragment = (PlayerAlbumCoverFragment) getChildFragmentManager().findFragmentById(R.id.player_album_cover_fragment);
 
-        playerAlbumCoverFragment.setOnColorChangedListener(this);
+        playerAlbumCoverFragment.setCallbacks(this);
     }
 
     private void setUpPlayerToolbar() {
@@ -254,18 +253,14 @@ public class PlayerFragment extends AbsPlayerFragment implements PlayerAlbumCove
     }
 
     @Override
-    public boolean onMenuItemClick(MenuItem item) {
+    protected void toggleFavorite(Song song) {
-        final Song song = MusicPlayerRemote.getCurrentSong();
+        super.toggleFavorite(song);
-        switch (item.getItemId()) {
+        if (song.id == MusicPlayerRemote.getCurrentSong().id) {
-            case R.id.action_toggle_favorite:
+            if (MusicUtil.isFavorite(getActivity(), song)) {
-                super.onMenuItemClick(item);
+                playerAlbumCoverFragment.showHeartAnimation();
-                if (MusicUtil.isFavorite(getActivity(), song)) {
+            }
-                    playerAlbumCoverFragment.showHeartAnimation();
+            updateIsFavorite();
-                }
-                updateIsFavorite();
-                return true;
         }
-        return super.onMenuItemClick(item);
     }
 
     @Override
@@ -294,6 +289,11 @@ public class PlayerFragment extends AbsPlayerFragment implements PlayerAlbumCove
         getCallbacks().onPaletteColorChanged();
     }
 
+    @Override
+    public void onFavoriteToggled() {
+        toggleFavorite(MusicPlayerRemote.getCurrentSong());
+    }
+
     @Override
     public void onPanelSlide(View view, float slide) {
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {