private void getdatafromfacebook(GraphResponse response) {
        JSONObject jsonObject = response.getJSONObject();
        arrayList = new ArrayList<>();
        if (response.getJSONObject().optJSONArray("data") != null) {

            next = jsonObject.optJSONObject("paging").optString("next");
            previous = jsonObject.optJSONObject("paging").optString("previous");

            for (int i = 0; i < jsonObject.optJSONArray("data").length(); i++) {
                Model model = new Model();
                JSONArray sender_data = jsonObject.optJSONArray("data").optJSONObject(i)
                        .optJSONObject("senders").optJSONArray("data");
                for (int z = 0; z < sender_data.length(); z++) {
                    JSONObject picture_data = sender_data.optJSONObject(z).optJSONObject("picture").optJSONObject("data");
                    if (!sender_data.optJSONObject(z).optString("id").equals(user_id)) {
                        model.setPage_conversation_user_id(sender_data.optJSONObject(z).optString("id"));
                        model.setPage_conversation_user_picture(picture_data.optString("url"));
                        model.setPage_conversation_user_name(sender_data.optJSONObject(z).optString("name"));
                    }
                }
                model.setPage_conversation_id(jsonObject.optJSONArray("data").optJSONObject(i).optString("id"));
                model.setPage_conversation_user_message(jsonObject.optJSONArray("data").optJSONObject(i).optString("snippet"));
                arrayList.add(model);
            }
            adapter = new Page_Conversation_List_Adapter(Page_Conversation_list.this, arrayList);
            recyclerView.setAdapter(adapter);
            adapter.notifyDataSetChanged();
            adapter.setOnItemClickListener(this);
        } else {
            //No Message
        }
    }