External AsyncTask class with ProgressDialog [Update: and returning back?]

Question

**Updated: (See below)**I have been looking around for couple of days and can\'t find a straight answer to this. Some say it possible to some say to accomplish some say it\

Answer 1

You were creating the ProgressDialog with a null context. The following code worked for me.

public class AsyncClass extends AsyncTask {
    private Context context;
    ProgressDialog dialog;

        public AsyncClass(Context cxt) {
            context = cxt;
            dialog = new ProgressDialog(context);
        }

        @Override
        protected void onPreExecute() {
            dialog.setTitle("Please wait");
            dialog.show();
        }

        @Override
        protected Void doInBackground(Void... unused) {
            SystemClock.sleep(2000);
            return (null);
        }

        @Override
        protected void onPostExecute(Void unused) {
            dialog.dismiss();
        }
    }