/**
  * ***************************************** Name: onResume() Description: method called after
  * resume application Parameters: none Returns: none ****************************************
  */
 protected void onResume() {
   super.onResume();
   vrManager.onResume();
   AGSoundManager.vrMusic.play();
 }
 /**
  * ***************************************** Name: onDestroy() Description: method called when
  * applicatin is destroyed Parameters: none Returns: none ***************************************
  */
 protected void onDestroy() {
   super.onDestroy();
   vrManager.release();
   vrManager = null;
   System.gc();
 }
 /**
  * ***************************************** Name: onPause() Description: method called to pause
  * application Parameters: none Returns: none ****************************************
  */
 protected void onPause() {
   super.onPause();
   AGSoundManager.vrMusic.pause();
   vrManager.onPause();
 }