无法让MapView放大当前位置 - SWIFT

Question

我整天都试过这个 - 看起来应该很简单 - 但我无法让MapView放大当前位置。

在模拟器中使用“Apple”作为测试位置 - 我没有得到任何错误并且它运行 - 但是视图只是保持美国的全景图蓝点 - 在加利福尼亚代表Apple地点。提前感谢任何帮助！

代码如下：

import MapKit
import UIKit
import CoreLocation

class MapViewController: UIViewController, CLLocationManagerDelegate,    MKMapViewDelegate {

@IBOutlet weak var mapView: MKMapView!

var locationManager: CLLocationManager!


func createLocationManager () {
    locationManager = CLLocationManager()
    locationManager.delegate = self
    locationManager.desiredAccuracy = kCLLocationAccuracyBest
    locationManager.distanceFilter = kCLDistanceFilterNone


}

func locationManager (manager:CLLocationManager!, didUpdateLocations locations:[AnyObject]!) {
    if let firstlocation = locations.first as? CLLocation {
        mapView.setCenterCoordinate(firstlocation.coordinate, animated: true)
        let region = MKCoordinateSpanMake (1000,1000)

    }

}


override func viewDidLoad() {
    super.viewDidLoad()

    // Do any additional setup after loading the view.

    locationManager = CLLocationManager()
    locationManager?.requestWhenInUseAuthorization()

    self.mapView.showsUserLocation = true

      }

Answer 1

在模拟器中尝试Debug->Location->City Bicycle Ride。这将为您提供持续更新。

还要确保设置locationManager的委托。