Question

I only want to execute a method call when the user clicks on a annotation pin on the map. I read the Apple documentation but am still unsure of how I can do it (or if this is even possible).

For example, I have created a restaurant class with a ‘Distance from current location’ property and the instances are added to a mapview as annotations.
I only want to trigger the calculateDistance method when the user clicks on an annotation (and the callout view is displayed).

Is there any way of doing this?

Answer 1

Override - (void)mapView:(MKMapView *)mapView didSelectAnnotationView:(MKAnnotationView *)view in your MapView delegate.

The MKAnnotationView contains a property annotation.