Android Volley Returning results twice for one request

Question

I have been trying to figure out this issue for two days now and I am completly stumped. For some reason I am sending one request to the queue but volley is returning it tw

Answer 1

Okay I faced the issue and came up with a solution. In my custom class i created a global variable on top as you can see in below code

MyRequest extends StringRequest {
    private boolean mDelivered;  //boolean to deliver response only once

then in constructor i initialsed it

    public MyRequest(String url, Listener listener,
                      ErrorListener errorListener, Context ctx) {
    super(url, listener, errorListener);
    mContext = ctx.getApplicationContext();
    mDelivered = false;
    DefaultRetryPolicy retryPolicy = new DefaultRetryPolicy(5000, 1, DefaultRetryPolicy.DEFAULT_BACKOFF_MULT);
    setRetryPolicy(retryPolicy);
}

and finally i overrided deliverResponse method. For first time mDelivered will be false and once it's delivered it'll be true. if response delivered from cache then cancel network request

    @Override
protected void deliverResponse(String response) {
    if (!mDelivered) {
        mDelivered  = true;
        cancel();   //if cache delivers response better to cancel scheduled network request
        super.deliverResponse(response);
    }
}

Hope this helps