title: android asynctask sending callbacks to ui
body: <p>I have the following asynctask class which is not inside the activity. In the activity I'm initializing the asynctask, and I want the asynctask to report callbacks back to my activity.
  Is it possible? Or does the asynctask must be in the same class file as the activity? </p>
  
  <pre><code>protected void onProgressUpdate(Integer... values) 
  {
      super.onProgressUpdate(values);
      caller.sometextfield.setText("bla");
  }
  </code></pre>
  
  <p>Something like this?</p>