Android ListenableAsyncTask: AsyncTask extension that lets you set an onPostExecute listener from a task's client

ListenableAsyncTask.java

public abstract class ListenableAsyncTask<Params, Progress, Result> extends AsyncTask<Params, Progress, Result>{

	@Override
    protected final void onPostExecute(Result result) {
		notifyListenerOnPostExecute(result);
	}

	private AsyncTaskListener<Result> mListener;
	public interface AsyncTaskListener<Result>{
		public void onPostExecute(Result result);
	}
	public void listenWith(AsyncTaskListener<Result> l){
		mListener = l;
	}
	private void notifyListenerOnPostExecute(Result result){
		if(mListener != null)
			mListener.onPostExecute(result);
	}

}

hey,

i think you solved my problem : ) AsyncTask's by nature aren't meant to be singletons. They can't outlive their listeners. from what you have written, it seems clear that the listener can be re-bound at any point between doInBackground() and onPostExecute(). i will try this tonight.

thanks.