我正在使用MKMapView
和自定义MKMarkerAnnotationView
在displayPriority = .required
上显示一组注释,这样就不会出现聚类或隐藏,而将UIButton
作为rightCalloutAccessoryView
。
当我点击地图上的注释时,标注将按预期显示,但是当我点击标注或它的附件时,如果该点击与地图上的另一个标记重叠,则该点击不会注册。
以下是该问题的游乐场友好示例。请注意,标注与地图上的另一条注释重叠时,标注如何不响应。
import MapKit
import PlaygroundSupport
class MapViewController: UIViewController, MKMapViewDelegate {
override func viewDidLoad() {
super.viewDidLoad()
}
func mapView(_ mapView: MKMapView, annotationView view: MKAnnotationView,
calloutAccessoryControlTapped control: UIControl) {
print("Callout tapped!")
}
}
class CustomAnnotationView: MKMarkerAnnotationView {
override var annotation: MKAnnotation? {
willSet {
canShowCallout = true
rightCalloutAccessoryView = UIButton(type: .detailDisclosure)
titleVisibility = .hidden
subtitleVisibility = .hidden
displayPriority = .required
}
}
}
let mapView = MKMapView(frame: CGRect(x:0, y:0, width:800, height:800))
let controller = MapViewController()
mapView.delegate = controller
mapView.register(CustomAnnotationView.self, forAnnotationViewWithReuseIdentifier: MKMapViewDefaultAnnotationViewReuseIdentifier)
let coordinate1 = CLLocationCoordinate2DMake(37.334922, -122.009033)
let annotation1 = MKPointAnnotation()
annotation1.coordinate = coordinate1
annotation1.title = "Annotation 1"
annotation1.subtitle = "Subtitle 1"
let coordinate2 = CLLocationCoordinate2DMake(37.335821492347556, -122.0071341097355)
let annotation2 = MKPointAnnotation()
annotation2.coordinate = coordinate2
annotation2.title = "Annotation 2"
annotation2.subtitle = "Subtitle 2"
mapView.addAnnotation(annotation1)
mapView.addAnnotation(annotation2)
var mapRegion = MKCoordinateRegion()
let mapRegionSpan = 0.02
mapRegion.center = coordinate1
mapRegion.span.latitudeDelta = mapRegionSpan
mapRegion.span.longitudeDelta = mapRegionSpan
mapView.setRegion(mapRegion, animated: true)
let mapViewController = MapViewController()
PlaygroundPage.current.liveView = mapView
还有一个图像来说明问题。
在此方面的任何帮助将不胜感激。谢谢!
答案 0 :(得分:0)
我的队友能够解决此问题。想法是在选择注释时禁用地图上所有其他注释的用户交互,然后在取消选择注释时重新启用它。
func mapView(_ mapView: MKMapView, didSelect view: MKAnnotationView) {
for nearbyAnnotation in mapView.annotations {
let annotationView = mapView.view(for: nearbyAnnotation)
if annotationView != nil {
annotationView!.isUserInteractionEnabled = false
}
}
view.isUserInteractionEnabled = true
}
func mapView(_ mapView: MKMapView, didDeselect _: MKAnnotationView) {
for nearbyAnnotation in mapView.annotations {
let annotationView = mapView.view(for: nearbyAnnotation)
if annotationView != nil {
annotationView!.isUserInteractionEnabled = true
}
}
}