title: How to get access to view from onPrepared?
body: <p>I have a three class: MainActivity, MyService, MyPlayer.
  MainActivity start service, which start AsyncTask and start MyPlayer (MediaPlayer) play method. But problem that I try to start a radio stream, which are loading for a while(5-10 sec), I want to inform listener that stream loading and infrom when stream loaded (public void onPrepared(MediaPlayer mp) method) in a MainActivity's view, but have an error "can't create handler inside thread". How do I can access to mainactivity's view and context (for toast messages). My code chains:</p>
  
  <pre><code>public class MainActivity extends Activity
   startService(new Intent(this, MyService.class));
  
  public class MyService extends Service 
  player = new MyPlayer(ctx);
  AsyncTask
  protected Void doInBackground(Void... params) {
               player.play();
  
  public class MyPlayer implements OnPreparedListener, OnCompletionListener 
  @Override
      public void onPrepared(MediaPlayer mp)
  </code></pre>
  
  <p>How to get access to MainActivity's view and context from onPrepared?</p>