Невозможно отобразить центрирование карты в метке!
импорт UIKit
импорт MapKit
импорт CoreLocation
класс ViewController: UIViewController, CLLocationManagerDelegate, MKMapViewDelegate {
@IBOutlet weak var myMapView: MKMapView!
@IBOutlet weak var addressLabel: UILabel!
let locationManager = CLLocationManager()
let regionInMeters: Double = 10000
var previousLocation: CLLocation?
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
checkLocationServices()
}
func setupLocationManager() {
locationManager.delegate = self
locationManager.desiredAccuracy = kCLLocationAccuracyBest
}
func centerViewOnUserLocation() {
if let location = locationManager.location?.coordinate {
let region = MKCoordinateRegion.init(center: location, latitudinalMeters: regionInMeters, longitudinalMeters: regionInMeters)
myMapView.setRegion(region, animated: true)
}
}
// the Location service
func checkLocationServices() {
if CLLocationManager.locationServicesEnabled() {
setupLocationManager()
checkLocationAuthorisation()
} else {
//show user to turn ON the services
}
}
func checkLocationAuthorisation() {
switch CLLocationManager.authorizationStatus() {
case .authorizedWhenInUse:
// do the stuff
startTrackingLocation()
case .denied:
//Alert to turn ON the permissions
break
case .notDetermined:
locationManager.requestWhenInUseAuthorization()
case .restricted:
// Alert to show what's up
break
case .authorizedAlways:
break
}
}
func startTrackingLocation() {
myMapView.showsUserLocation = true
centerViewOnUserLocation()
locationManager.startUpdatingLocation()
previousLocation = getCenterLocation(for: myMapView)
}
func getCenterLocation(for mapView: MKMapView) -> CLLocation {
let latitude = mapView.centerCoordinate.latitude
let longitude = mapView.centerCoordinate.longitude
return CLLocation(latitude: latitude, longitude: longitude)
}
func locationManager(_ manager: CLLocationManager, didChangeAuthorization status: CLAuthorizationStatus) {
// We'll be back
checkLocationAuthorisation()
}
func mapView(_ mapView: MKMapView, regionDidChangeAnimated animated: Bool) {
let center = getCenterLocation(for: myMapView)
let geoCoder = CLGeocoder()
guard let previousLocation = self.previousLocation else { return }
guard center.distance(from: previousLocation) > 50 else { return }
self.previousLocation = center
geoCoder.reverseGeocodeLocation(center) { [weak self] (placemarks, error) in
guard let self = self else { return }
if let _ = error {
//TODO: Show alert informing the user
return
}
guard let placemark = placemarks?.first else {
//TODO: Show alert informing the user
return
}
let streetNumber = placemark.subThoroughfare ?? ""
let streetName = placemark.subThoroughfare ?? ""
DispatchQueue.main.async {
self.addressLabel.text = "\(streetNumber) \(streetName)"
}
}
}
@IBAction func satelliteView(_ sender: Any) {
myMapView.mapType = MKMapType.satellite
}
@IBAction func hybridView(_ sender: Any) {
myMapView.mapType = MKMapType.hybrid
}
@IBAction func standardView(_ sender: Any) {
myMapView.mapType = MKMapType.standard
}
@IBAction func findDirections(_ sender: Any) {
}
}
Предполагается, что метка в приложении показывает центральное расположение (пин-код) карты. Но не знаю, где все идет не так!