Update listener for animation in Gesture Settings.

Use onClick listener instead of onTouch listener for handling playback
for the animation video.

Bug: 29779942
Change-Id: Ia30c0c49635fedd7f5afd4873ed1971529b99dcc

src/com/android/settings/gestures/GesturePreference.java

@@ -100,10 +100,9 @@ public final class GesturePreference extends SwitchPreference {
         imageView.setVisibility(View.VISIBLE);
         playButton.setVisibility(View.VISIBLE);
 
-        video.setOnTouchListener(new View.OnTouchListener() {
+        video.setOnClickListener(new View.OnClickListener() {
             @Override
-            public boolean onTouch(View v, MotionEvent event) {
-                if (event.getAction() == MotionEvent.ACTION_DOWN) {
+            public void onClick(View v) {
                 if (mMediaPlayer != null) {
                     if (mMediaPlayer.isPlaying()) {
                         mMediaPlayer.pause();
@@ -113,9 +112,6 @@ public final class GesturePreference extends SwitchPreference {
                         playButton.setVisibility(View.GONE);
                     }
                 }
-                    return true;
-                }
-                return false;
             }
         });