我正在使用真实设备来获取我当前的位置，问题是locationManager.locationisnil并且didUpdateLocations未调用该函数。
var location = CLLocationManager()
@IBOutlet weak var map: MKMapView!
override func viewDidLoad() {
super.viewDidLoad()
map.showsPointsOfInterest = true
map.showsScale = true
map.showsUserLocation = true
locationManagerConfiguration()
}
func locationManagerConfiguration(){
location.requestAlwaysAuthorization()
location.requestWhenInUseAuthorization()
if CLLocationManager.locationServicesEnabled(){
location.delegate = self
location.desiredAccuracy = kCLLocationAccuracyBest
location.startUpdatingLocation()
}
let sourceCoordinates = location.location?.coordinate
let sourcePlacemark = MKPlacemark(coordinate: sourceCoordinates!
这是 sourceCoordinate 为零的问题
您提供的代码与您问题中的陈述不符，但我想我在代码中看到了问题。根据苹果文档：Startupdatinglocation
location.startUpdatingLocation()
是一个需要几秒钟才能获取位置的异步函数。该函数将立即返回，但当系统获得 GPS 位置（几秒钟后，异步）时，将调用委托回调。您上面的代码正在调用startUpdatingLocation()并立即期望出现一个值（同步，永远不会出现）。您的代码需要更像：
func locationManagerConfiguration(){
location.requestAlwaysAuthorization()
location.requestWhenInUseAuthorization()
if CLLocationManager.locationServicesEnabled(){
location.delegate = self
location.desiredAccuracy = kCLLocationAccuracyBest
location.startUpdatingLocation()
}
}
func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
// TODO: Check the array is not empty
let sourceCoordinates = locations[0]
let sourcePlacemark = MKPlacemark(coordinate: sourceCoordinates!)
}
func locationManager(_ manager: CLLocationManager, didFailWithError error: Error) {
print("Location error: \(error)")
}
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