Facebook-GRAPH API请求我/朋友 - 空数组

Question

我尝试获取朋友列表以查看谁使用我的应用，我尝试使用GRAPH API 2.1发送请求，但我没有得到任何回复，我有这样的代码：

 private Session.StatusCallback statusCallback = new Session.StatusCallback() {
        @Override
        public void call(Session session, SessionState state,
                Exception exception) {
            if (state.isOpened()) {                                                      
                Intent i = new Intent (LoginsActivity.this, PoPrihlaseni.class);
                startActivity(i);
                /* make the API call */
new Request(
    session,
    "/me",
    null,
    HttpMethod.GET,
    new Request.Callback() {
        public void onCompleted(Response response) {
            /* handle the result */
         JSONArray jarray =  response.getGraphObject().getInnerJSONObject().getJSONArray("data");


        }
    }
).executeAsync();
                Log.d("FacebookSampleActivity", "Facebook session opened");
            } else if (state.isClosed()) {
                Log.d("FacebookSampleActivity", "Facebook session closed");
            }
        }
    }; 

但是jarray是空的，哪里有问题？ 谢谢