@Override
 public void onPause() {
   super.onPause();
   mHapticFeedbackController.stop();
 }
 public void tryVibrate() {
   mHapticFeedbackController.tryVibrate();
 }
 @Override
 public void onResume() {
   super.onResume();
   mHapticFeedbackController.start();
 }