無法調用位置權限彈出窗口的回調

Question

我確定了CLLocationManager的包裝器類

public class MyLocationManager: NSObject, CLLocationManagerDelegate {

  public static let shared = MyLocationManager()

  var locationManager: CLLocationManager

  override init() {
     locationManager = CLLocationManager()
     super.init()
     locationManager.delegate = self
  }

  // function to request location “when-in-use” permission 
  public func requestWhenInUse() {
        locationManager.requestWhenInUseAuthorization()
    }

  // callback of location permission popup
  private func locationManager(_ manager: CLLocationManager, didChangeAuthorizationStatus status: CLAuthorizationStatus) {
        //PROBLEM: it never get called
        print(“Status: \(status)")
    }
}

在我的UIViewController之一中，我通過以下方法請求位置許可：

override func viewDidAppear(_ animated: Bool) {
    MyLocationManager.shared.requestWhenInUse()
}

運行應用程序時，會出現位置權限彈出窗口，但是在允許或拒絕權限之后， MyLocationManager的回調永遠不會被調用，為什么？

我以此為參考： https : //developer.apple.com/documentation/corelocation/cllocationmanagerdelegate/1423701-locationmanager

Answer 1

更新方法為最新語法

public func locationManager(_ manager: CLLocationManager, didChangeAuthorizationStatus status: CLAuthorizationStatus){---}