@Override
 public void onBackPressed() {
   if (sv_bottom_content.getVisibility() == View.VISIBLE) {
     doReverseAnimation();
   } else {
     super.onBackPressed();
   }
 }
 /** 点击底部弹出框的回调 */
 protected void onItemClickCallback(int groupId, int itemId) {
   doReverseAnimation();
 }