title: Custom AlertDialog.Builder class in android won't show
body: <p>I'm currently writing a program that will use the Geocoder to search for possible GeoPoints of a city search. I then take the geopoints and add it to a map as overlays, the user can then click the overlay, and an alert dialog will pop up to ask if he/she is sure that this is the right one.</p>
  
  <p>I couldn't figure out a way to get the alert dialog to work like swing where after the user clicks yes or no, I can retrieve the answer. So I extended the AlertDialog.Builder class like so, which also happens to be a Dialog.OnClicklistener</p>
  
  <pre><code>public class MyAlertDialog extends AlertDialog.Builder implements DialogInterface.OnClickListener{ 
  final static int positiveMessage = 1;
  final static int negativeMessage = 0; 
  final static int neutralMessage = -1;
  
  private int myMessage; 
  
  public MyAlertDialog(Context activity) {
      super(activity);
  }
  
  @Override
  public void onClick(DialogInterface dialog, int which) {
      if(which == dialog.BUTTON_POSITIVE){
          myMessage = positiveMessage;
      }
      else if(which == dialog.BUTTON_NEGATIVE){
          myMessage = negativeMessage;
      }
      else{
          myMessage = neutralMessage;
      }
  }
  
  public int getMessage() {
      return myMessage;
  }
  </code></pre>
  
  <p>and I implement it like so</p>
  
  <pre><code>    protected boolean onTap(int index) {
  
      OverlayItem item = overlays.get(index);
        MyAlertDialog dialog = new MyAlertDialog(ctx);
        dialog.setTitle(item.getTitle());
        dialog.setMessage("Is this the " + item.getTitle()
                + " you're looking for?");
        dialog.setPositiveButton("Yes",null);
        dialog.setNegativeButton("Cancel", null);
        dialog.show();
  
        if(dialog.getMessage()== MyAlertDialog.positiveMessage){
                 //do some stuff
  </code></pre>
  
  <p>But for some reason the dialog wont show until after the method has returned, so it never does the stuff. Anyone have any ideas? Oh and ctx is a reference to my mapActivity</p>