自定义注释 Swift

Question

我创建了一个包含单个注释的地图。据我所见，这是实现此目的的一种非常简单的方法，我从教程中得到了它。我目前正在尝试获取自定义图片作为注释，但我很难做到这一点，因为几乎所有关于该主题的信息都在 objective C 中。如果这真的很简单，请原谅我，但我对编码还比较陌生，如果有任何帮助，我将不胜感激:)

class ViewController2: UIViewController {
@IBOutlet var Map: MKMapView!

override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.

//Location for first Pin
let locationOne = CLLocationCoordinate2DMake(-47.016945, 167.852095)

//Location for map centering
let locationNZ = CLLocationCoordinate2DMake(-43.937462, 170.507813)
let span = MKCoordinateSpanMake(9, 9)
let region = MKCoordinateRegion(center: locationNZ, span: span)
Map.setRegion(region, animated: true)

//Create annotation one
let annotation = MKPointAnnotation()
annotation.coordinate = locationOne
annotation.subtitle = "Park"
annotation.title = "Rakiura National Park"

//Add annotation to the map
Map.addAnnotation(annotation)}

Answer 1

我假设它是您想要的默认图钉的不同图像？我已经使用了另一个问题的答案，请在此处查看

func mapView(mapView: MKMapView, viewForAnnotation annotation: MKAnnotation) -> MKAnnotationView? {
// Don't want to show a custom image if the annotation is the user's location.
guard !annotation.isKindOfClass(MKUserLocation) else {
    return nil
}

let annotationIdentifier = "AnnotationIdentifier"

var annotationView: MKAnnotationView?
if let dequeuedAnnotationView = mapView.dequeueReusableAnnotationViewWithIdentifier(annotationIdentifier) {
    annotationView = dequeuedAnnotationView
    annotationView?.annotation = annotation
}
else {
    let av = MKAnnotationView(annotation: annotation, reuseIdentifier: annotationIdentifier)
    av.rightCalloutAccessoryView = UIButton(type: .DetailDisclosure)
    annotationView = av
}

if let annotationView = annotationView {
    // Configure your annotation view here
    annotationView.canShowCallout = true
    annotationView.image = UIImage(named: "yourImage")
}

return annotationView
}

Answer 2

更新@Jonask 的回答

func mapView(_ mapView: MKMapView, viewFor annotation: MKAnnotation) -> MKAnnotationView? {
        // Don't want to show a custom image if the annotation is the user's location.
        guard !annotation.isKind(of: MKUserLocation.self) else {
            return nil
        }

        let annotationIdentifier = "AnnotationIdentifier"

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

        if let annotationView = annotationView {
            // Configure your annotation view here
            annotationView.canShowCallout = true
            annotationView.image = UIImage(named: "yourImage")
        }

        return annotationView
}

自定义注释 Swift

Custom Annotation Swift

xcode

customization

annotations

swift