title: Continuous press of button in Playback Overlay fragment in leanback library
body: <p>I am using playback overlay fragment in my Android TV app for video controls.The problem is I want to know whether the buttons are continuously pressed or not.But in callback I only come to know when its pressed .</p>
  
  <pre><code>this.mPlayBackControlsRowPresenter.setOnActionClickedListener(new OnActionClickedListener() {
          public void onActionClicked(Action action) {
              PlaybackControlFragment playbackControlFragment = (PlaybackControlFragment)getFragmentManager().findFragmentById(R.id.playback_controls_fragment);
              if (action.getId() == playbackControlFragment.getPlayPause().getId()) {
                  /* PlayPause action */
              } else if (action.getId() == playbackControlFragment.getPlayNext().getId()) {
                  /* SkipNext action */
                 // mMediaController.getTransportControls().skipToNext();
              } else if (action.getId() == playbackControlFragment.getPlayPrevious().getId()) {
                  /* SkipPrevious action */
                 // mMediaController.getTransportControls().skipToPrevious();
              } else if (action.getId() == playbackControlFragment.getForward().getId()) {
                  /* FastForward action  */
                //  mMediaController.getTransportControls().fastForward();
              } else if (action.getId() == playbackControlFragment.getRewind().getId()) {
                  /* Rewind action */
                //  mMediaController.getTransportControls().rewind();
              }
  
  
          }
      });
  </code></pre>