我设置了一个自定义的地图视图,并在我的视图控制器上全屏显示。当地图视图被初始化时,它检查位置授权,如果获得授权,它就会变成 showsUserLocation = true
我可以在我的控制台中po出这个标志在授权后被打到并变成了true,mapView会正确运行我的centerViewOnUserLocation()方法,但我仍然无法在地图上看到蓝点的位置。我是在我的iPhone上测试的,不是模拟器。下面是一些代码示例。
视图控制器
private lazy var mapView: EVMapView = {
let result: EVMapView = EVMapView()
view.addSubview(result)
result.delegate = self
EVConstraintHelper.anchor(view: result, options: .classic)
return result
}()
自定义地图视图
class EVMapView: MKMapView, EVLocationProtocol {
var locationManager: CLLocationManager?
init() {
super.init(frame: .zero)
checkLocationServices()
}
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
func checkLocationServices() {
if CLLocationManager.locationServicesEnabled() {
setupLocationManager()
checkLocationAuth()
} else {
print("Auth Denied")
}
}
func setupLocationManager() {
locationManager = CLLocationManager()
locationManager?.delegate = self
locationManager?.desiredAccuracy = kCLLocationAccuracyBest
}
func checkLocationAuth() {
switch CLLocationManager.authorizationStatus() {
case .authorizedWhenInUse, .authorizedAlways:
showsUserLocation = true
centerViewOnUserLocation()
case .denied:
print("Auth Denied")
case .notDetermined:
locationManager?.requestWhenInUseAuthorization()
case .restricted:
print("Auth Restricted")
@unknown default:
print("Unkown default selected in \(#function)")
}
}
func centerViewOnUserLocation() {
guard let coordinate = locationManager?.location?.coordinate else { return }
let span = MKCoordinateSpan.init(latitudeDelta: 2, longitudeDelta: 2)
let region = MKCoordinateRegion.init(center: coordinate, span: span)
setRegion(region, animated: true)
}
}
我已经设置了plist隐私-位置使用时的使用说明信息,不知道还会是什么。
我想明白了... 我为mapView使用了自定义的placemark注释,删除了默认的注释。从技术上讲,蓝色的当前位置标记是一个默认的注释,所以它也被删除了。