iOS应用不会要求位置许可

Question

iOS应用不会要求位置许可

Una*_*dra 9 core-location mapkit ios swift

我的Swift-iOS应用程序旨在显示用户在地图上的位置.但是,XCode调试控制台告诉我,我需要请求权限才能显示用户的位置.我想,我这样做,但对话永远不会出现.

这是错误消息,在我调用的ViewController下面 CLLocationManager::requestWhenInUseAuthorization()

错误:

2014-06-30 21:25:13.927 RowingTracker2 [17642:1608253]尝试在不提示位置授权的情况下启动MapKit位置更新.必须首先调用 - [CLLocationManager requestWhenInUseAuthorization]或 - [CLLocationManager requestAlwaysAuthorization].

视图控制器:

import UIKit
import MapKit
import CoreLocation

class ViewController: UIViewController, MKMapViewDelegate {
    @IBOutlet var mapview: MKMapView = nil
    var locationmgr : CLLocationManager!

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
        locationmgr = CLLocationManager()
        locationmgr.requestWhenInUseAuthorization()
        mapview.showsUserLocation = true
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
}

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如何申请授权使用该位置？你可以在这里找到完整的项目.(提交)