@Override
  public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    if (resultCode == RESULT_OK) {
      if (requestCode == C.FACEBOOK_AUTH_CODE) {
        mFacebook.authorizeCallback(requestCode, resultCode, data);
      }
    } else {
      if (requestCode == C.FACEBOOK_AUTH_CODE) {
        mFacebook.authorizeCallback(requestCode, resultCode, data);
      }
    }
  }