Q:

How to add an UIButton to a MKAnnotation (MKView)?

I want to add a click able button to a MKAnnotation as seen in this screenshot of the Maps application:
Preview http://www.img-hosting.de/bilder/24558PlacemarkWithIconpng

A:

UIButton *disclosureButton = [UIButton buttonWithType: UIButtonTypeDetailDisclosure]; 
annoView.canShowCallout = YES;    
annoView.rightCalloutAccessoryView = disclosureButton;

