ios – didUpdateLocations从未调用过

我正在尝试获取用户的位置.为此,我在info.plist中设置了以下属性：

我还在viewDidLoad方法中添加了以下代码以及下面的函数.问题是locationManager(manager,didUpdate ….)函数永远不会被调用,我也从未被提示访问位置的权限,即使我已经删除并再次安装了应用程序.我在iPad上测试,而不是在模拟器上测试. didFailWithError函数永远不会被调用.

self.locationManager.delegate = self
    self.locationManager.desiredAccuracy = kCLLocationAccuracyBest
    self.locationManager.requestWhenInUseAuthorization()
    self.locationManager.startUpdatingLocation()



func locationManager(manager: CLLocationManager,didUpdateLocations locations: [CLLocation]) {
    print("UPDATING")
    let locValue:CLLocationCoordinate2D = manager.location!.coordinate
    let latitude = locValue.latitude
    let longitude = locValue.longitude
    latitudeText = "\(latitude)"
    longitudeText = "\(longitude)"
    if let a = latitudeText,b = longitudeText {
        print(a)
        print(b)
        self.locationManager.stopUpdatingLocation()
        if (userAlreadyExist()) {
            dispatch_async(dispatch_get_main_queue(),{
                //self.performSegueWithIdentifier("segueWhenLoggedIn",sender: self)
                self.performSegueWithIdentifier("showCamera",sender: self)
                // self.performSegueWithIdentifier("showTabBarController",sender: self)
            })

        }
        else {
            dispatch_async(dispatch_get_main_queue(),{
                self.performSegueWithIdentifier("segueWhenLoggedOut",sender: self)
            })
        }
    }


}

func locationManager(manager: CLLocationManager,didFailWithError error: NSError) {
    print(error.localizedDescription)
}

编辑：

我添加了以下代码片段：

if CLLocationManager.locationServicesEnabled() {
        print("yes")
    }
    else {
        print("no")
    }

它返回是.我还检查了我的设备,locationServices已启用,应用程序已列在那里,但是所有其他应用程序都在其旁边写着“While Using”,“Never”或“Always”,我没有写任何东西.

解决方法

你在哪里开始更新位置？例如：

//location manager
    lazy var locationManager: CLLocationManager = {
        var _locationManager = CLLocationManager()
        _locationManager.delegate = self
        _locationManager.desiredAccuracy = kCLLocationAccuracyNearestTenMeters
        _locationManager.activityType = .AutomotiveNavigation
        _locationManager.distanceFilter = 10.0  // Movement threshold for new events
        _locationManager.allowsBackgroundLocationUpdates = true // allow in background

        return _locationManager
    }()


    if CLLocationManager.locationServicesEnabled() {
                locationManager.startUpdatingLocation() // start location manager

            }

这是一个工作的控制器代码：
设置自定义iOS目标属性也很重要.

将这两行添加到Info.plist：

NSLocationWhenInUseUsageDescription

NSLocationAlwaysUsageDescription

//
//  ViewController.swift
//  LocationTest2


import UIKit
import CoreLocation

class ViewController: UIViewController {

    //location manager
    lazy var locationManager: CLLocationManager = {
        var _locationManager = CLLocationManager()
        _locationManager.delegate = self
        _locationManager.desiredAccuracy = kCLLocationAccuracyNearestTenMeters
        _locationManager.activityType = .AutomotiveNavigation
        _locationManager.distanceFilter = 10.0  // Movement threshold for new events
      //  _locationManager.allowsBackgroundLocationUpdates = true // allow in background

        return _locationManager
    }()

    override func viewDidLoad() {
        super.viewDidLoad()
    }

    override func viewWillAppear(animated: Bool) {
        super.viewWillAppear(animated)

        //allow location use
        locationManager.requestAlwaysAuthorization()

        print("did load")
        print(locationManager)

        //get current user location for startup
       // if CLLocationManager.locationServicesEnabled() {
            locationManager.startUpdatingLocation()
       // }
    }
}


// MARK: - CLLocationManagerDelegate
extension ViewController: CLLocationManagerDelegate {

    func locationManager(manager: CLLocationManager,didUpdateLocations locations: [CLLocation]) {

        for location in locations {

            print("**********************")
            print("Long \(location.coordinate.longitude)")
            print("Lati \(location.coordinate.latitude)")
            print("Alt \(location.altitude)")
            print("Sped \(location.speed)")
            print("Accu \(location.horizontalAccuracy)")

            print("**********************")


        }
    }

}