ios - 无法让 MapView 放大当前位置 - SWIFT

Question

我已经为此尝试了一整天 - 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”作为仅用于测试的位置 - 我没有收到任何错误并且它运行 - 但 View 只是停留在美国的全貌上，带有一个蓝点 - 在加利福尼亚州代表 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。

还要确保您正在设置 locationManager 的委托(delegate)。