MKMapView Clicking on pins won't call didSelectAnnotationView
问题 I am using a mapView and am trying to make a callout pop up when you click on a pin which is shown on the map. The pins manage to be placed in the proper locations so I think the annotations work but when I click on the pin it won't show a callout. I have show callout = YES. The method didSelectAnnotationView does not get called at all when I click on the pin. Are there some common problems which may cause this method not to be called? 回答1: If tapping on a pin doesn't show the callout even if