How to update ui from asynctask

Question

I\'ve seen many examples of how to do this, but I can\'t figure how to implement it in my code.

I am using this code.
I have updated the url, so it will receive

Answer 1

You can use AsycTask and update list ui on task finished within onPostExecute.

    new AsyncTask() {
        /**
         * Before starting background do some work.
         * */
        @Override
        protected void onPreExecute() {
        }

        @Override
        protected String doInBackground(String... params) {
            // TODO fetch url data do bg process.
            return null;
        }

        /**
         * Update list ui after process finished.
         */
        protected void onPostExecute(String result) {
               // NO NEED to use activity.runOnUiThread(), code execute here under UI thread. 

                 // Updating parsed JSON data into ListView
                 final List data = new Gson().fromJson(result);
                // updating listview
                ((ListActivity) activity).updateUI(data);
        }

    };
}

Update No need to use runOnUiThread inside onPostExecute, Because it's already called on and it's body executed under UIThread.