如何在Swift中向MKPointAnnotation添加按钮

我希望能够在地图注释上放置一个按钮和标签。 标题，副标题和坐标的注释完美无缺，但我无法显示按钮。

func drawEvents(_ loc: CLLocation, title1: String) { mapView.delegate = self// let center = CLLocationCoordinate2D(latitude: loc.coordinate.latitude, longitude: loc.coordinate.longitude) let lat: CLLocationDegrees = center.latitude let long: CLLocationDegrees = center.longitude self.pointAnnotation1 = MKPointAnnotation() self.pointAnnotation1.title = title1 self.pointAnnotation1.subtitle = "Event" self.pointAnnotation1.coordinate = CLLocationCoordinate2D(latitude: lat, longitude: long) self.pinAnnotationView = MKPinAnnotationView(annotation: self.pointAnnotation1, reuseIdentifier: nil) self.mapView.addAnnotation(self.pinAnnotationView.annotation!) } 

Answer 1

这可以通过向rightCalloutAccessoryView的MKPinAnnotationView添加UIButton来MKPinAnnotationView 。 这是一个例子：

 func mapView(_ mapView: MKMapView, viewFor annotation: MKAnnotation) -> MKAnnotationView? { if !(annotation is MKUserLocation) { let pinView = MKPinAnnotationView(annotation: annotation, reuseIdentifier: String(annotation.hash)) let rightButton = UIButton(type: .contactAdd) rightButton.tag = annotation.hash pinView.animatesDrop = true pinView.canShowCallout = true pinView.rightCalloutAccessoryView = rightButton return pinView } else { return nil } } 

这就是这样：

希望对你有所帮助！