@Override
    protected void onActivityResult(final int requestCode, final int resultCode, final Intent intent) {
        super.onActivityResult(requestCode, resultCode, intent);  // call super to make lint happy
        backupUtils.onActivityResult(requestCode, resultCode, intent);
    }
detect whether c:geo is unable to log in
main/src/main/java/cgeo/geocaching/activity/AbstractNavigationBarActivity.java