Retain pin coordinates in calloutAccessoryControlTapped action

Can I retain pin coordinates for an calloutA开发者_JAVA百科ccessoryControlTapped action? I want to retain those coordinates to the next view. When you tap a pin, and subsequently go to the next view, i want to use the pin coordinates again. How do I retain those coordinates from that pin?

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In the calloutAccessoryControlTapped method, you can access the annotation tapped using view.annotation and the coordinates will be in view.annotation.coordinate.

You can add a property of type CLLocationCoordinate2D to the next view and set it equal to view.annotation.coordinate.

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Ask the MKMapView for its selectedAnnotations. As there can only be one, and this will be the one showing a callout, you can take the coordinate in your mapView:annotationView:calloutAccessoryControlTapped: method.