Question

我正在尝试将ObjC中的旧应用程序转换为Swift作为练习练习并且遇到了一些问题。我在旧应用程序中使用它的方式是建立CLLocation Manager然后我会使用：

manager = [[CLLocationManager alloc]init];
manager.delegate = self;
manager.desiredAccuracy = kCLLocationAccuracyBest;    
[manager startUpdatingLocation]

会自动调用：

-(void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation{
}

从那里我可以提取我需要的所有信息。但是在swift中，没有自动完成这种方法，我无法弄清楚如何重现它。文档说明

startUpdatingLocation()

代理人仍然会调用

，但它没有发生。

这是我到目前为止所做的：

import UIKit
import corelocation

class ViewController: UIViewController,CLLocationManagerDelegate{

@IBOutlet var gpsResult : UILabel

var manager:CLLocationManager!

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.

    manager = CLLocationManager()
    manager.delegate = self
    manager.desiredAccuracy = kCLLocationAccuracyBest
    manager.startUpdatingLocation()
}

func locationManager(manager:CLLocationManager, didUpdateLocations locations:AnyObject[]) {
    println("locations = \(locations)")
    gpsResult.text = "success"
}
}

任何关于在哪里寻找的帮助或指示都将受到赞赏。感谢。

编辑：已从建议更新，但仍无效

EDIT2：似乎是一些不允许该方法在ViewController中正常工作的错误

Answer 1

你错过了两件事。首先，您必须使用requestAlwaysAuthorization或requestWhenInUseAuthorization()申请权限。所以你的viewDidLoad()应该是这样的：

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.
    locationManager = CLLocationManager()
    locationManager.delegate = self
    locationManager.desiredAccuracy = kCLLocationAccuracyBest
    locationManager.requestAlwaysAuthorization()
    locationManager.startUpdatingLocation()
}

其次，修改您的Info.plist as indicated here。

Answer 2

首先在plist文件中添加这两行

1）NSLocationWhenInUseUsageDescription

2）NSLocationAlwaysUsageDescription

然后这是类工作完成实现这个

import UIKit

import CoreLocation

@UIApplicationMain

class AppDelegate: UIResponder, UIApplicationDelegate, CLLocationManagerDelegate {

var window: UIWindow?
var locationManager: CLLocationManager!
var seenError : Bool = false
var locationFixAchieved : Bool = false
var locationStatus : NSString = "Not Started"

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: NSDictionary?) -> Bool {
    initLocationManager();
    return true
}

// Location Manager helper stuff
func initLocationManager() {
    seenError = false
    locationFixAchieved = false
    locationManager = CLLocationManager()
    locationManager.delegate = self
    locationManager.locationServicesEnabled
    locationManager.desiredAccuracy = kCLLocationAccuracyBest

    locationManager.requestAlwaysAuthorization()
}

// Location Manager Delegate stuff
// If failed
func locationManager(manager: CLLocationManager!, didFailWithError error: NSError!) {
    locationManager.stopUpdatingLocation()
    if (error) {
        if (seenError == false) {
            seenError = true
           print(error)
        }
    }
}

func locationManager(manager: CLLocationManager!, didUpdateLocations locations: AnyObject[]!) {
    if (locationFixAchieved == false) {
        locationFixAchieved = true
        var locationArray = locations as NSArray
        var locationObj = locationArray.lastObject as CLLocation
        var coord = locationObj.coordinate

        println(coord.latitude)
        println(coord.longitude)
    }
}

// authorization status
func locationManager(manager: CLLocationManager!,
    didChangeAuthorizationStatus status: CLAuthorizationStatus) {
        var shouldIAllow = false

        switch status {
        case CLAuthorizationStatus.Restricted:
            locationStatus = "Restricted Access to location"
        case CLAuthorizationStatus.Denied:
            locationStatus = "User denied access to location"
        case CLAuthorizationStatus.NotDetermined:
            locationStatus = "Status not determined"
        default:
            locationStatus = "Allowed to location Access"
            shouldIAllow = true
        }
        NSNotificationCenter.defaultCenter().postNotificationName("LabelHasbeenUpdated", object: nil)
        if (shouldIAllow == true) {
            NSLog("Location to Allowed")
            // Start location services
            locationManager.startUpdatingLocation()
        } else {
            NSLog("Denied access: \(locationStatus)")
        }
}
}

Answer 3

我不确定原因，但似乎startUpdatingLocation并未在iOS 7模拟器上显示用户提示，但是当我手动启用它时，如果我使用了更新形式的委托方法：

var manager:CLLocationManager!

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.

    manager = CLLocationManager()
    manager.delegate = self
    manager.desiredAccuracy = kCLLocationAccuracyBest
    manager.startUpdatingLocation()
}

func locationManager(manager:CLLocationManager, didUpdateLocations locations:[AnyObject]) { // Updated to current array syntax [AnyObject] rather than AnyObject[]
    println("locations = \(locations)")
}

您使用的格式自iOS 5或6以来已被弃用，因此显然它不受快速桥接层的支持。

Answer 4

有同样的问题。 didUpdateLocations - 无效。运行你的应用程序转到“设置”页面 - ＆gt;隐私 - ＆gt;位置和关闭位置服务。 didFailWithError将捕获有关缺少位置服务的错误。然后打开它。从那时起，didUpdateLocations将捕获位置。

Answer 5

我希望有两种方式。

    var locationManager: CLLocationManager = CLLocationManager()
  var initialLocation :CLLocation?
  var updatedUserLocation :CLLocation?

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

        //MapView Location
        locationManager.delegate = self
        locationManager.desiredAccuracy = kCLLocationAccuracyNearestTenMeters
        locationManager.requestWhenInUseAuthorization()
        locationManager.startUpdatingLocation()
        locationManager.startUpdatingHeading()
}

实施CLLocationManagerDelegate：

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

// This only works when user location is updated.
gpsProviderStatusLabel.changeStatusToOn(gpsProviderStatusLabel)

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

//Error indicates GPS permission restricted

      gpsProviderStatusLabel.changeStatusToOff(gpsProviderStatusLabel)

//Initial Location
initialLocation = locations.first

//Getting Updated Location
updatedUserLocation = locations.last

  }

检查CLLocationDelegate授权：

 func locationManager(manager: CLLocationManager, didChangeAuthorizationStatus status: CLAuthorizationStatus) {

//This method does real time status monitoring.

        switch status {
        case .NotDetermined:
          print(".NotDetermined")
          break

        case .AuthorizedAlways:
          print(".AuthorizedAlways")
          gpsProviderStatusLabel.changeStatusToOn(gpsProviderStatusLabel)
          break


        case .Denied:
          print(".Denied")
          gpsProviderStatusLabel.changeStatusToOff(gpsProviderStatusLabel)
          break

        case .AuthorizedWhenInUse:
          print(".AuthorizedWhenInUse")
          gpsProviderStatusLabel.changeStatusToOn(gpsProviderStatusLabel)
          break

        case .Restricted:
          print(".Restricted")
          break

        default:
          print("Unhandled authorization status")
          break

        }
      }

注意：changeStatusToOn或changeStatusToOff是一种UILabel Extenion方法，它使标签文本开启/关闭为绿色/红色。

Answer 6

这是我非常简单的代码：

首先在常规/链接框架和库中添加核心位置框架

然后在Info.plist中添加以下内容：

<key>NSLocationWhenInUseUsageDescription</key>
<string>blablabla</string>
<key>NSLocationAlwaysUsageDescription</key>
<string>blablabla</string>

这是我的ViewController.swift文件：

import UIKit
import CoreLocation

class ViewController: UIViewController, CLLocationManagerDelegate {

    var locationManager:CLLocationManager!

    override func viewDidLoad() {
        super.viewDidLoad()

        locationManager = CLLocationManager()
        locationManager.delegate = self
        locationManager.desiredAccuracy = kCLLocationAccuracyBest
        locationManager.requestAlwaysAuthorization()
        locationManager.startUpdatingLocation()
    }


    func locationManager(manager:CLLocationManager, didUpdateLocations locations: [CLLocation]) {
        print("locations = \(locations)")
    }

}

Answer 7

适用于Swift 3

import UIKit
import CoreLocation

class ViewController: UIViewController,CLLocationManagerDelegate {


    var locationManager:CLLocationManager!

    override func viewDidLoad() {
        super.viewDidLoad()

        locationManager = CLLocationManager()
        locationManager.delegate = self
        locationManager.desiredAccuracy = kCLLocationAccuracyBest
        locationManager.requestAlwaysAuthorization()
        locationManager.startUpdatingLocation()

        // Do any additional setup after loading the view, typically from a nib.
    }

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

    func locationManager(_ manager:CLLocationManager, didUpdateLocations locations: [CLLocation]) {
        print("locations = \(locations)")
    }


}

Answer 8

不要忘记添加 NSLocationWhenInUseUsageDescription或 NSLocationAlwaysUsageDescription 在您的配置文件中（目标/信息/自定义iOS目标属性

Answer 9

在 info.plist

中添加bellow 2属性

NSLocationWhenInUseUsageDescription : Location information is used for fraud prevention

Privacy - Location Usage Description : Location information is used for fraud prevention

Answer 10

如果您希望默认更新用户位置，而不是每次都点击“模拟位置”，请转到

YourProject-->Build Phases-->Link Binary with libraries-->Add corelocation.framework

当您在模拟器中运行应用程序时，该位置会自动更新/默认情况下。测试并在Swift 2中工作！

Answer 11

这将要求获得许可并跟踪是否有权限，否则退出警报。按下后退按钮停止跟踪。

info.plist中

<key>NSLocationAlwaysUsageDescription</key>
<string>Allow tracking while completing a survey</string>

类别：

import UIKit
import CoreLocation    

class LocationViewController: BaseViewController, CLLocationManagerDelegate {

        // MARK: Constants

        private static let enableLocationServices = [
            "title" : "Location",
            "message" : "Enable location services",
            "buttonTitle" : "OK"
        ]

        // MARK: Private variables

        private var manager: CLLocationManager?

        // MARK: UIViewCOntroller methods

        @IBAction func backButtonPressed(sender : UIButton) {
            stopTracking()
            detatchLocationManager()
            dismissViewControllerAnimated(true, completion: nil)
        }

        override func viewDidLoad() {
            super.viewDidLoad()

            attachLocationManager()    
        }

        // Mark: Location

        func locationManager(manager: CLLocationManager,
                             didChangeAuthorizationStatus status: CLAuthorizationStatus)
        {
            if status == .AuthorizedAlways {
                manager.startUpdatingLocation()
            } else if status != .NotDetermined {
                showEnableLocationServicesAlert()
            }
        }

        func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
            for location in locations {
                getDependencyService().getProject().appendLocationTrackingFile(location.timestamp, latitude: location.coordinate.latitude, longitude: location.coordinate.longitude)
            }
        }

        // MARK: LocationViewController

        private func attachLocationManager() {
            manager = CLLocationManager()
            manager?.delegate = self
            manager?.desiredAccuracy = kCLLocationAccuracyBest

            if CLLocationManager.authorizationStatus() != .AuthorizedAlways {
                manager?.requestAlwaysAuthorization()
            } else if CLLocationManager.locationServicesEnabled() {
                startTracking()
            }
        }

        private func detatchLocationManager() {
            manager?.stopUpdatingLocation()
            manager?.delegate = nil
            manager = nil
        }

        private func startTracking() {
            manager?.startUpdatingLocation()
        }

        private func stopTracking() {
            manager?.stopUpdatingLocation()
        }

        private func showEnableLocationServicesAlert() {
getDependencyService().getUiHelper().showAlert(FrogFirstSurveyViewController.enableLocationServices, completion: {
                self.dismissViewControllerAnimated(true, completion: nil)
            })
        }

    }

Answer 12

快捷键：

在

中添加以下内容

import CoreLocation
class YourViewController: UIViewController
{
       var locationManager:CLLocationManager!
}


//MARK:- Location Manager
extension YourViewController: CLLocationManagerDelegate {

    func stratLocationManager()
    {
        locationManager = CLLocationManager()
        locationManager.delegate = self
        locationManager.desiredAccuracy = kCLLocationAccuracyBest
        self.checkUsersLocationServicesAuthorization()
        locationManager.startUpdatingLocation()

    }

    func checkUsersLocationServicesAuthorization(){
        /// Check if user has authorized Total Plus to use Location Services
        if CLLocationManager.locationServicesEnabled()
        {
            switch CLLocationManager.authorizationStatus()
            {
            case .notDetermined:
                // Request when-in-use authorization initially
                // This is the first and the ONLY time you will be able to ask the user for permission
                self.locationManager.delegate = self
                locationManager.requestWhenInUseAuthorization()
                break

            case .restricted, .denied:
                // Disable location features
                PrintLogs("Location Access Not Available")
                break

            case .authorizedWhenInUse, .authorizedAlways:
                // Enable features that require location services here.
                PrintLogs("Location Access Available")
                break
            }
        }
    }

    func locationManager(_ manager:CLLocationManager, didUpdateLocations locations: [CLLocation]) {
        print("locations = \(locations)")
    }
}

Answer 13

只需调用init（vc：UIViewController）。

.compareTo

Swift中的CLLocationManager获取用户的位置

13 个答案: