如何在用户位置IOS 9 SWIFT上居中地图

Question

您好我有下面的代码，它找到半径在1英里范围内的用户位置：

let initialLocation = CLLocation(latitude: 51.5001524, longitude: -0.1262362)
let regionRadius: CLLocationDistance = 1000
var locationManager: CLLocationManager!

override func viewDidLoad() {
    super.viewDidLoad()

    func centerMapOnLocation(location:CLLocation) {
        let coordianteRegion = MKCoordinateRegionMakeWithDistance(location.coordinate,
            regionRadius * 2.0, regionRadius * 2.0)
        mapView.setRegion(coordianteRegion, animated: true)
    }
    // Do any additional setup after loading the view, typically from a nib.
      centerMapOnLocation(initialLocation)

        }

This is perfect as gets a decent radius for user location, however i want to know, how do you center map on user location? 

我尝试了很多方法，但似乎无法让地图以用户所在位置为中心。

非常感谢任何帮助！

由于

Answer 1

MKMapView使用userTrackingMode属性构建了内置解决方案。

mapView.userTrackingMode = .Follow

Answer 2

我认为这可能会对你有所帮助

func locationManager(manager: CLLocationManager!, didUpdateLocations locations: [AnyObject]!) {
    let location = locations.last as CLLocation

    let center = CLLocationCoordinate2D(latitude: location.coordinate.latitude, longitude: location.coordinate.longitude)        
    let region = MKCoordinateRegion(center: center, span: MKCoordinateSpan(latitudeDelta: 0.01, longitudeDelta: 0.01))

    self.map.setRegion(region, animated: true)
}