Swift：位置管理員沒有更新位置？

Question

我想實現GoogleMaps，但我甚至無法讓CLLocationManager工作。 didUpdateLocations方法未運行。這是我的控制器：

import UIKit 
import CoreLocation 
import GoogleMaps 

... 

class RootMapViewController: UIViewController { 

    let locationManager = CLLocationManager() 

    @IBOutlet weak var mapView: GMSMapView! 

    override func viewDidLoad() { 
    super.viewDidLoad() 

    fetchLocation() 

    ... 
    } 

    func addMapPin(coordinates: CLLocationCoordinate2D, title: String, description: String) { 
    ... 
    } 

    private func fetchLocation() { 
    locationManager.delegate = self 
    locationManager.desiredAccuracy = kCLLocationAccuracyBest 
    locationManager.requestWhenInUseAuthorization() 
    } 

    private func centerMapOn(userCoordinates: CLLocationCoordinate2D) { 
    ... 
    } 

} 

// MARK: CLLocationManagerDelegate 

extension RootMapViewController: CLLocationManagerDelegate { 

    func locationManager(manager: CLLocationManager, didChangeAuthorizationStatus status: CLAuthorizationStatus) { 
    if status == .AuthorizedWhenInUse { 
     print("gggggggggggggggggg") // <----------------- prints properly **** 
     locationManager.startUpdatingLocation() 
     print("hhhhh") 
     mapView.myLocationEnabled = true 
     mapView.settings.myLocationButton = true 
    } 
    } 

    // ISSUE ARISES HERE: ***************************************** 
    func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) { 
    print("zzzzzzzzzzzzzzzzzzz") // <----------------- doesn't print **** 
    let userCoordinates = manager.location!.coordinate 
    centerMapOn(userCoordinates) 
    locationManager.stopUpdatingLocation() 
    } 

} 

我的Info.plist文件具有關鍵：

更新：

Answer 1

你必須調用

locationManager.startUpdatingLocation; 

fetchLocation（）函數的最後一行。