Swift2 iOS9-如何在我的代码中获取自定义图像而不是默认注释红色图钉

Question

这是我的代码。 我已经尝试了所有可用的解决方案，但无法在代码中放入希望的图像，而不是默认的注释红色图钉。

import MapKit

class ViewController: UIViewController, MKMapViewDelegate {

@IBOutlet var map: MKMapView!

override func viewDidLoad() {
    super.viewDidLoad()

    var location = CLLocationCoordinate2DMake(18.956449, 72.810597)

    var span = MKCoordinateSpanMake(0.009, 0.009)
    var region = MKCoordinateRegion(center: location, span: span)

    map.setRegion(region, animated: true)

    var annotation = MKPointAnnotation()
    annotation.coordinate = location
    annotation.title = "Wilson College"
    annotation.subtitle = "Commerce College"

    map.addAnnotation(annotation)
    print("showing on map")

    mapView(map, viewForAnnotation: annotation)


}



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

    let identifier = "MyPin"
    print("inside viewForAnnotation")
    if annotation.isKindOfClass(MKUserLocation) {
        return nil
    }

    let detailButton: UIButton = UIButton(type: UIButtonType.DetailDisclosure)

    // Reuse the annotation if possible
    var annotationView = mapView.dequeueReusableAnnotationViewWithIdentifier(identifier)

    if annotationView == nil
    {
        annotationView = MKAnnotationView(annotation: annotation, reuseIdentifier: "pin")
        annotationView!.canShowCallout = true
        annotationView!.image = UIImage(named: "VRtest.png")
        annotationView!.rightCalloutAccessoryView = detailButton
        print("editing annotation")
    }
    else
    {
        annotationView!.annotation = annotation
    }

    return annotationView
}

任何帮助表示赞赏。 谢谢

Answer 1

您要自定义默认注释吗？ 如果是，则可以参考此文章如何创建自定义MKAnnotationView和自定义注释标题和副标题

这是Swift 2中的示例

class MapViewController: UIViewController {


    @IBOutlet weak var mapView: MKMapView!

    let initialLocation = CLLocation(latitude: 34.074094, longitude: -118.396329)
    let regionRadius: CLLocationDistance = 1000

    func centerMapOnLocation(location: CLLocation) {
        let coordinateRegion = MKCoordinateRegionMakeWithDistance(location.coordinate,
            regionRadius * 2.0, regionRadius * 2.0)
        self.mapView.setRegion(coordinateRegion, animated: true)
    }

    override func viewDidLoad() {
        self.mapView.delegate = self
        self.centerMapOnLocation(initialLocation)

        let location = CLLocationCoordinate2D(latitude: 34.074094, longitude: -118.396329)
        let annotation = CustomAnnotation(coordinate: location, imageName: "pinIcon", title: "Test", subtitle: "Detail", enableInfoButton: false)

        self.mapView.addAnnotation(annotation);
    }
}

extension MapViewController: MKMapViewDelegate {
    func mapView(mapView: MKMapView, viewForAnnotation annotation: MKAnnotation) -> MKAnnotationView? {

        if (annotation is MKUserLocation) {
            return nil
        }

        let pinIdentifier = "pinIdentifier"
        var view: MKAnnotationView
        if (annotation.isKindOfClass(CustomAnnotation)) {
            if let dequeuedView = mapView.dequeueReusableAnnotationViewWithIdentifier(pinIdentifier)
                as MKAnnotationView? {
                    dequeuedView.annotation = annotation
                    view = dequeuedView
            } else {
                view = MKAnnotationView(annotation: annotation, reuseIdentifier: pinIdentifier)
                view.canShowCallout = true

                //Set custome image
                let customAnnotation = annotation as! CustomAnnotation
                view.image = UIImage(named:customAnnotation.imageName!)
            }

            return view
        }

        return nil
    }

}

class CustomAnnotation : NSObject, MKAnnotation {

    var coordinate: CLLocationCoordinate2D
    var imageName: String?
    var title: String?
    var subtitle: String?
    var enableInfoButton : Bool

    init(coordinate: CLLocationCoordinate2D, imageName: String, title: String, subtitle: String, enableInfoButton : Bool) {
        self.coordinate = coordinate
        self.imageName = imageName
        self.title = title
        self.subtitle = subtitle
        self.enableInfoButton = enableInfoButton;
    }
}

这是我在屏幕上显示的自定义图像