Swift,如何从点击的自定义注释中获取信息
我有以下自定义注释类:
import UIKit import MapKit class LocationMapAnnotation: NSObject, MKAnnotation { var title: String? var coordinate: CLLocationCoordinate2D var location: Location init(title: String, coordinate: CLLocationCoordinate2D, location: Location) { self.title = title self.coordinate = coordinate self.location = location } }
我正在将注释加载到这样的地图视图中:
for i in 0..<allLocations.count{ //Add an annotation let l: Location = self.allLocations[i] as! Location let coordinates = CLLocationCoordinate2DMake(l.latitude as Double, l.longitude as Double) let annotation = LocationAnnotation(title: l.name, coordinate: coordinates, location: l) mapView.addAnnotation(annotation) }
我想从选定的注释中获取Location
对象。 目前我有这个方法,当我点击注释时调用,但我不确定如何从注释中检索特定对象。
func mapView(mapView: MKMapView, didSelectAnnotationView view: MKAnnotationView) { print("Annotation selected") //performSegueWithIdentifier("locationInfoSegue", sender: self) }
谢谢。
您可以在didSelectAnnotationView中获取Annotation,然后它将为您提供MKAnnotationView。 此MKAnnotationView将MKAnnotation作为对象。
func mapView(mapView: MKMapView, didSelectAnnotationView view: MKAnnotationView) { println("Annotation selected") if let annotation = view.annotation as? LocationMapAnnotation { println("Your annotation title: \(annotation.title)"); } }