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uimaps location and annotation

class ViewController: UIViewController, MKMapViewDelegate, CLLocationManagerDelegate {

    @IBOutlet var mapView: MKMapView!
   
    var manager:CLLocationManager
   
   
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
       
        //core location
        manager.delegate = self
        manager.desiredAccuracy = kCLLocationAccuracyBest
        manager.requestWhenInUseAuthorization()
        manager.startUpdatingLocation()
       
       
        var lat:CLLocationDegrees = 40.748473
        var long:CLLocationDegrees = -73.985417
       
        var latDelta:CLLocationDegrees = 0.01
        var longDelta:CLLocationDegrees = 0.01
       
        var span:MKCoordinateSpan = MKCoordinateSpanMake(latDelta, longDelta)
        var location:CLLocationCoordinate2D = CLLocationCoordinate2DMake(lat, long)
       
        var region:MKCoordinateRegion = MKCoordinateRegionMake(location, span)
        mapView.setRegion(region, animated: true)
       
        var annotation:MKPointAnnotation = MKPointAnnotation()
        annotation.coordinate = location
        annotation.title = "Statue of Liberty"
        annotation.subtitle = "One day I will come by"
       
        mapView.addAnnotation(annotation)
       
       
    }

Tags: 
swift