Check if async request is finished, using loopj android async

Question

I am developing an android app that uses Android Async. I am using this library called Android Asynchronous Http Client

I made a method for a GET request

public String getVenues(String token) throws Exception {
    AsyncHttpClient venuesReq = new AsyncHttpClient();
    venuesReq.addHeader("Authorization", "Token token=" + token);
    venuesReq.get(mainAct.httpRequestURL + "/venues", new AsyncHttpResponseHandler() {
        @Override
        public void onSuccess(String response) {
            venues = response;
        }
        @Override
        public void onFinish() {
           // Completed the request (either success or failure)
       }
    return venues;
}

but when I call getVenues("token") the return is null, but when I try to call getVenues("token") after few seconds there are now results for venues.

I know that I am using async request so the venues doesn't return immediately.

Now what I want is, when I call getVenues("token") method there should be a returned response for the GET Request.

Community · Accepted Answer · 2017-05-23 11:57:07Z

1

You need to use interface here take a look at this

https://stackoverflow.com/a/21773406/472336

Your class from where you are listening/asking for asyntask result need to impliment interface and call that interface method from asyntask..

Hope this helps

edited May 23, 2017 at 11:57

CommunityBot

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answered Mar 25, 2014 at 10:44

Pramod

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2 Comments

AllenC Over a year ago

That solution only works if you have a class that extends AsyncTask<String, Void, String> but I already extends my class on a Fragment

Pramod Over a year ago

No you can impliment this solution with Fragment too. check this link developer.android.com/guide/components/fragments.html public static class FragmentA extends ListFragment { OnArticleSelectedListener mListener; ... @Override public void onAttach(Activity activity) { super.onAttach(activity); try { mListener = (OnArticleSelectedListener) activity; } catch (ClassCastException e) { throw new ClassCastException(activity.toString() + " must implement OnArticleSelectedListener"); } } ... }

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