swift - 不请求访问 coreLocation 的权限并 swift 崩溃

Question

我的 Swift 应用程序中有 CoreLocation。当我在模拟器或设备中运行它时，会崩溃并且不会显示访问 CoreLocation 的权限。我拥有实现此功能所需的所有代码:代码请求，plist 中的 NSLocationWhenInUseUsageDescription 或 NSLocationAlwaysUsageDescription ...我正在阅读 iOS app doesn't ask for location permission但我不能让这个节目。

 var location: CLLocationManager!
let status = CLLocationManager.authorizationStatus()
  location=CLLocationManager()
  if(status == CLAuthorizationStatus.NotDetermined) {
        self.location.requestAlwaysAuthorization();
    }
    else {
        location.startUpdatingLocation()
    }
    location.delegate = self
    location.desiredAccuracy=kCLLocationAccuracyBest 
    self.location.startMonitoringSignificantLocationChanges()

    print(location.location.coordinate.latitude) //Here crash
    print(location.location.coordinate.longitude)

我还能做些什么来展示这个？

谢谢!

Answer 1

这是我的应用程序中的代码片段:

    let locationManager = CLLocationManager()
    ...
    locationManager.delegate = self
    locationManager.activityType = CLActivityType.Fitness
    locationManager.distanceFilter = 10   // 10m

    if ( UIDevice.currentDevice().systemVersion == "8.0" ) {
        locationManager.requestAlwaysAuthorization()
    }

    // get current location
    if CLLocationManager.authorizationStatus() == CLAuthorizationStatus.Authorized {
        locationManager.startUpdatingLocation()
    }