Android Asyntask: Use weak reference for context to avoid device rotate screen

Somewhere in your AsyncTask you’ll want to pass in your activity. Then you’ll save that reference in a weak reference. Then you can dereference and use it again in onPostExecute.

Class member:

WeakReference<Activity> weakActivity;

Somewhere in AsyncTask, probably either constructor or onPreExecute:

weakActivity = new WeakReference<Activity>(activity);

In onPostExecute:

Activity activity = weakActivity.get();
if (activity != null) {
   // do your stuff with activity here
}