如何在Mapview swift ios中设置自定义图像？

Question

@IBOutlet weak var map: MKMapView!
override func viewDidLoad() {
    map.delegate = self
    showAlarms()
    super.viewDidLoad()

    // Do any additional setup after loading the view.
}

func showAlarms(){

    map.region.center.latitude = 10.733051
    map.region.center.longitude = 76.763042
    map.region.span.latitudeDelta = 1
    map.region.span.longitudeDelta = 1


}
func mapView(mapView: MKMapView!,
             viewForAnnotation annotation: MKAnnotation!) -> MKAnnotationView! {

    if annotation is MKUserLocation {
        //return nil so map view draws "blue dot" for standard user location
        return nil
    }

    let reuseId = "pin"
    var pinView = mapView.dequeueReusableAnnotationView(withIdentifier: reuseId) as? MKPinAnnotationView
    if pinView == nil {
        pinView = MKPinAnnotationView(annotation: annotation, reuseIdentifier: reuseId)
        pinView!.canShowCallout = true
        //pinView!.animatesDrop = true
        pinView!.image = UIImage(named:"annotation")!

    }
    else {
        pinView!.annotation = annotation
    }

    return pinView
}

我需要在swift ios中为我的mapview显示自定义图片图像.自定义图像既不加载引脚也不加载.我有一个名为"annotation"的图像,我需要在mapview中加载它.

Answer 1

  mapview.delegate = self

    func mapView(_ mapView: MKMapView, viewFor annotation: MKAnnotation) -> MKAnnotationView? {
guard !(annotation is MKUserLocation) else {
    return nil
}

 let annotationIdentifier = "Identifier"
 var annotationView: MKAnnotationView?
 if let dequeuedAnnotationView = mapView.dequeueReusableAnnotationView(withIdentifier: annotationIdentifier) {
    annotationView = dequeuedAnnotationView
    annotationView?.annotation = annotation
}
else {
    annotationView = MKAnnotationView(annotation: annotation, reuseIdentifier: annotationIdentifier)
    annotationView?.rightCalloutAccessoryView = UIButton(type: .detailDisclosure)
}

 if let annotationView = annotationView {

    annotationView.canShowCallout = true
    annotationView.image = UIImage(named: "yourImagename”)
}
  return annotationView
}