@Override
 protected void onCreate(Bundle icicle) {
   super.onCreate(icicle);
   // 设置为全屏
   requestWindowFeature(Window.FEATURE_NO_TITLE);
   getWindow()
       .setFlags(
           WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
   // 获得系统的宽度以及高度
   DisplayMetrics dm = new DisplayMetrics();
   getWindowManager().getDefaultDisplay().getMetrics(dm);
   if (dm.widthPixels > dm.heightPixels) {
     WIDTH = dm.widthPixels;
     HEIGHT = dm.heightPixels;
   } else {
     WIDTH = dm.heightPixels;
     HEIGHT = dm.widthPixels;
   }
   setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
   mView = new GL2JNIView(getApplication());
   mView.requestFocus(); // 获取焦点
   mView.setFocusableInTouchMode(true); // 设置为可触控
   setContentView(mView);
 }
 @Override
 protected void onResume() {
   super.onResume();
   mView.onResume();
 }
 @Override
 protected void onPause() {
   super.onPause();
   mView.onPause();
 }