问题
Is it possible to add an extra property to MKPointAnnotation? At the moment there is coordinate, title, and subtitle.
Is it possible to add a url property which can be accessed within -(MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation{ }, just like I can access[annotation title];?
回答1:
Just make an MKPointAnnotation subclass.
Delete all the methods out of the .m file, and add this to your .h file:
@property (nonatomic, strong) NSURL *url;
来源：https://stackoverflow.com/questions/16737813/mkpointannotation-add-extra-property