code: @Override
      public void onNewIntent(Intent intent) {
          super.onNewIntent(intent);
  
          // Verify OAuth callback
          Uri uri = intent.getData();
          if (uri != null && uri.getScheme().equals(OAUTH_CALLBACK_SCHEME)) {
              String verifier = uri.getQueryParameter(OAuth.OAUTH_VERIFIER);
  
              new UpworkRetrieveAccessTokenTask().execute(verifier);
          }
      }
docs: Callback once we are done with the authorization of this app
  @param intent