@Override
  public void onResume() {
    super.onResume();
    mViewModel.resume();

    setDisplayOptions(MainActivity.DISPLAY_TITLE);
    setTitle(R.string.title_scan_qr_code);
  }
 @Override
 public void onResume() {
   super.onResume();
   mViewModel.resume();
   setDisplayOptions(MainActivity.DISPLAY_LOGO);
 }