在Android上基于时间值的连续请求

Question

我正在尝试不断发送请求。我从请求中获取时间变量。我想通过检查从请求中获得的值来一次又一次地发送请求。这是我的要求：

 public JSONHandler() {
        request = new JsonObjectRequest(Request.Method.GET, url, null,
                new Response.Listener<JSONObject>() {
                    @Override
                    public void onResponse(JSONObject response) {
                        try {
                            channelObject = response.getJSONObject("channel0");
                            song = channelObject.getString("song");
                            artist = channelObject.getString("artist");
                            duration = channelObject.getInt("duration");
                            playedAt = channelObject.getInt("playedat");
                            channelImg = channelObject.getString("image_extralarge");
//                            channel0 = new Channel(song, artist, duration, playedAt, channelImg);


                            channelObject = response.getJSONObject("channel1");
                            song = channelObject.getString("song");
                            artist = channelObject.getString("artist");
                            duration = channelObject.getInt("duration");
                            playedAt = channelObject.getInt("playedat");
                            channelImg = channelObject.getString("image_extralarge");
//                            channel1 = new Channel(song, artist, duration, playedAt, channelImg);

                            channelObject = response.getJSONObject("channel2");
                            song = channelObject.getString("song");
                            artist = channelObject.getString("artist");
                            duration = channelObject.getInt("duration");
                            playedAt = channelObject.getInt("playedat");
                            channelImg = channelObject.getString("image_extralarge");
//                            channel2 = new Channel(song, artist, duration, playedAt, channelImg);

                            channelObject = response.getJSONObject("channel3");
                            song = channelObject.getString("song");
                            artist = channelObject.getString("artist");
                            duration = channelObject.getInt("duration");
                            playedAt = channelObject.getInt("playedat");
                            channelImg = channelObject.getString("image_extralarge");
//                            channel3 = new Channel(song, artist, duration, playedAt, channelImg);

                            channelObject = response.getJSONObject("channel4");
                            song = channelObject.getString("song");
                            artist = channelObject.getString("artist");
                            duration = channelObject.getInt("duration");
                            playedAt = channelObject.getInt("playedat");
                            channelImg = channelObject.getString("image_extralarge");
//                            channel4 = new Channel(song, artist, duration, playedAt, channelImg);

                        } catch (JSONException e) {
                            e.printStackTrace();
                        }
                    }
                }, new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError error) {
                error.printStackTrace();
            }
        });
    }

我应该检查“ playedAt” +“持续时间”，之后我想再次发送请求。我像这样在MainActivity中实现此请求：

JSONHandler jsonHandler = new JSONHandler();

检查时间之后，我想再次发送请求，以便更新所需的值。有办法吗？