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我正在使用MapKit,我更改了Annotation的圖像,但問題是,用戶位置(藍點)也改變了它的圖片(我不希望那樣)。我怎樣才能恢復正常。另外,我在標註中添加了一個小按鈕(正如您可能已經猜到的那樣),該按鈕已添加到我的位置,但它不應該在那裏。我的代碼如下...(MapView)用戶位置圖像更改幫助恢復
func mapView(_ mapView: MKMapView, viewFor annotation: MKAnnotation) -> MKAnnotationView? {
if !(annotation is MKUserLocation) {
print("annotation is MKUserLocation")
}
var annotationView = mapView.dequeueReusableAnnotationView(withIdentifier: "identifier")
if annotationView == nil{
annotationView = MKAnnotationView(annotation: annotation, reuseIdentifier: "identifier")
annotationView!.canShowCallout = true
annotationView!.rightCalloutAccessoryView = UIButton(type: .detailDisclosure)
let pinImg = UIImage(named: "curz")
let size = CGSize(width: 50, height: 50)
UIGraphicsBeginImageContext(size)
pinImg!.draw(in: CGRect(x: 0, y: 0, width: size.width, height: size.height))
let resizedImage = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
annotationView!.image = resizedImage
}
else {
annotationView!.annotation = annotation
}
return annotationView
}
//Var SelectedAnnotation
var anotacionSeleccionada : MKPointAnnotation!
func mapView(_ mapView: MKMapView, annotationView view: MKAnnotationView, calloutAccessoryControlTapped control: UIControl) {
if control == view.rightCalloutAccessoryView {
anotacionSeleccionada = view.annotation as? MKPointAnnotation
performSegue(withIdentifier: "vista", sender: self)
}
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if let destination = segue.destination as? ViewController {
destination.pin = anotacionSeleccionada
}
}
我是否將該行代替「if!(註解是MKUserLocation)」? –
是的,你可以@DanielC。 –
它的工作原理!謝謝! –