How to listen to the volley framework RequestQueue when all requests are completed

How to monitor the volley framework RequestQueue queue when all requests are completed.
First add the request

 mQueue.add(getWeekAndDay()); // getWeekAndDay()的返回值为StringRequest
 mQueue.add(getWeekAndDay());

Listening request list completed

        mQueue.addRequestFinishedListener(new RequestQueue.RequestFinishedListener<Object>() {
    
    
            public void onRequestFinished(Request<Object> request){
    
    
            //TODO
            }
        });