允许访问位置后缩放到用户位置不缩放初始加载

Question

在初始加载时，当应用程序在使用 app/always/never 时请求访问您的位置的权限。一旦你 select 一个选项，缩放到用户位置不会缩放，但如果我返回屏幕然后返回地图，它会缩放到用户位置。一旦获得 select 许可，我怎样才能让它缩放？

var locationManager = CLLocationManager()

override func viewDidLoad() {
    super.viewDidLoad()

    locationManager.delegate = self
    locationManager.desiredAccuracy = kCLLocationAccuracyBest

    // Check for Location Services
    if (CLLocationManager.locationServicesEnabled()) {
        locationManager.requestAlwaysAuthorization()
        locationManager.requestWhenInUseAuthorization()
    }

    //Zoom to user location
    if let userLocation = locationManager.location?.coordinate {
        let viewRegion = MKCoordinateRegion.init(center: userLocation, latitudinalMeters: 10000, longitudinalMeters: 10000)
        map.setRegion(viewRegion, animated: true)
    }

    DispatchQueue.main.async {
        self.locationManager.startUpdatingLocation()
    }

    //This will pull the info for where to put annotation
    let annotatedPlace = MKPointAnnotation()
    annotatedPlace.title = annoTitle
    annotatedPlace.coordinate = CLLocationCoordinate2D(latitude: coordinanteLat, longitude: coordinanteLong)
    map.addAnnotation(annotatedPlace)

    locationAuthStatus()

}

func locationAuthStatus() {
    if CLLocationManager.authorizationStatus() == .authorizedWhenInUse {
        map.showsUserLocation = true
    } else {
        locationManager.requestWhenInUseAuthorization()
    }
}

Answer 1

您需要实施 locationManager(_:didChangeAuthorization:) 以便在您获得授权时做出响应。

允许访问位置后缩放到用户位置不缩放初始加载

zoom to user location not zooming on initial loading after allowing access to to location

core-location

ios

swift