private void addfavorite() {
   PopupText pt = Resource.buildPopupText();
   try {
     ServiceWrapper sw = engine.getServiceWrapper();
     sw.addFavoritegd();
     if (sw.isServiceSuccessful()) {
       pt.setText("添加收藏夹成功");
     } else {
       pt.setText("添加收藏夹失败, 原因: " + sw.getServiceMessage());
     }
   } catch (Exception e) {
     e.printStackTrace();
     pt.setText("添加收藏夹失败,请稍后重试");
   }
   pt.popup();
 }