@Override
  public void onRefresh(final Object param) {
    final LVRefreshListView view = getView();
    if (view != null && LuaUtil.isValid(mCallback)) {
      // 这里必须放在handler中执行,否则会造成nullpointerexception(dispatchDraw的时候调用removeView出错)
      // http://dashasalo.com/2013/09/16/android-removeview-crashes-animation-listener/
      view.post(
          new Runnable() { // 下一帧回调,否则会造成view onDraw乱序。否则在同一帧调用的时候再调用addView, removeView会有bug
            @Override
            public void run() {
              if (LuaUtil.isValid(mCallback)) {
                LuaUtil.callFunction(LuaUtil.getFunction(mCallback, "PullDown", "pullDown"));
              }

              if (param instanceof OnLVRefreshListener) {
                ((OnLVRefreshListener) param).onRefresh(null);
              }
            }
          });
    } else {
      if (param instanceof OnLVRefreshListener) {
        ((OnLVRefreshListener) param).onRefresh(null);
      }
    }
  }
 /** 初始化下拉刷新 */
 public void initPullRefresh() {
   final LVRefreshListView view = getView();
   if (view != null && LuaUtil.isValid(mCallback)) {
     view.setOnRefreshListener(
         new SwipeRefreshLayout.OnRefreshListener() {
           @Override
           public void onRefresh() {
             UDRefreshListView.this.onRefresh(null);
           }
         });
   }
 }