How to return an object from the asynctask to the main class in android

Question

I want to return the document to my main class but even using a global variable dosen\'t work it\'s because the asynctask didn\'t finish the job I think is there a solution to g

Answer 1

Use a Listener Listener for that. Example in 2 minutes.

Use an Interface like:

public interface OnTaskCompleted{
    void onTaskCompleted(Document doc);
}

Extend your Activity with this Interface:

public YourActivity implements OnTaskCompleted{
   //your Activity
}

Let the AsyncTask send an information when it's done.

public YourTask extends AsyncTask{ 
private OnTaskCompleted listener;

// all your stuff
public YourTask(OnTaskCompleted listener){
    this.listener=listener;
}

protected void onPostExecute(Object o){
    listener.onTaskCompleted(doc);
}
}

Now you implement the onTaskCompleted in your activity and handle the Document which has been given by the asynctask.