@Override
 public void onActivityResult(int requestCode, int resultCode, Intent intent) {
   Log.i(TAG, "QR: Got activity result: " + resultCode + " requestCode: " + requestCode);
   if (requestCode == 0) {
     String contents = null;
     if (resultCode == RESULT_OK) {
       contents = intent.getStringExtra("SCAN_RESULT");
       String format = intent.getStringExtra("SCAN_RESULT_FORMAT");
       Log.i(TAG, "QR: " + contents + " Format: " + format);
       Utils.SaveData(contents.getBytes(), "", false, "qr.txt");
     } else if (resultCode == RESULT_CANCELED) {
     }
     finish();
   }
 }