相关疑难解决方法(0)

我试图在我的iOS应用程序中使用位置服务但由于某种原因requestWhenInUseAuthorization无法正常工作.当用户第一次使用该应用程序时,提示按正常方式询问权限,但是当您第二次打开应用程序时,由于某种原因,didChangeAuthorizationStatus方法未被调用,因此我无法在地图上显示用户当前位置.

我的代码如下:

 override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib
    locationManager.delegate = self
    locationManager.requestWhenInUseAuthorization()
    var config:NSURLSessionConfiguration = NSURLSessionConfiguration.defaultSessionConfiguration()
    config.URLCache = NSURLCache(memoryCapacity: 2 * 1024 * 1024, diskCapacity: 10 * 1024 * 1024, diskPath: "MarkerData")
    markerSession = NSURLSession(configuration: config)
 }



 func locationManager(manager: CLLocationManager!, didChangeAuthorizationStatus status: CLAuthorizationStatus) {
    if status == .AuthorizedWhenInUse {

        locationManager.startUpdatingLocation()
        mapView.delegate = self
        mapView.myLocationEnabled = true
        mapView.settings.myLocationButton = true
     }
 }