public void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);
   setContentView(R.layout.main);
   findViewById(R.id.wait).setVisibility(View.VISIBLE);

   new AsyncTask() {

            @Override
            protected Void doInBackground(Void... params) {
                menu = fetchMenu();
                return null;
            }

            @Override
            protected void onPostExecute(Void result) {
               if(!isFinishing()) {
                  displayMenu();
                  findViewById(R.id.wait).setVisibility(View.GONE);
               }
               super.onPostExecute(result);
            }
        }.execute();
}