@Override
 public void onResponse(String s) {
   LogUtils.e("onResponse: " + s);
   JSONObject jsonObject = JSON.parseObject(s);
   if (jsonObject != null
       && jsonObject.getString("errmsg") != null
       && jsonObject.getString("errmsg").equals("ok")) {
     Utils.makeEventToast(this, "发生邀请成功", false);
   } else {
     Utils.makeEventToast(this, "发生邀请失败", false);
   }
   finish();
 }