@Override
 protected void onResume() {
   super.onResume();
   Logger.i("onResume");
 }
 @Override
 protected void onStop() {
   super.onStop();
   Logger.i("onStop");
 }
 @Override
 protected void onStart() {
   super.onStart();
   Logger.i("onStart");
 }
 @Override
 protected void onPause() {
   super.onPause();
   Logger.i("onPause");
 }