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CLLocationManager in Swiftユーザーの位置を取得する

私はObjCの古いアプリを練習問題としてSwiftに変換しようとしていますが、いくつかの問題にぶつかりました。次に使用します：

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

自動的に呼び出します：

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

そこから必要なすべての情報を抽出できました。しかし、Swiftでは、このメソッドのオートコンプリートはなく、再現方法を理解できません。ドキュメントには

startUpdatingLocation()

デリゲートによって呼び出されますが、実行されていません。

これは私がこれまでに持っているものです：

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"
}
}

参照する場所に関するヘルプまたはポインタをいただければ幸いです。ありがとう。

編集：提案から更新されましたが、まだ機能していません

EDIT2：メソッドがViewControllerで適切に機能しないバグがあるようです

cllocationmanagerswift
28
Sean Fitz

あなたは2つのことを見逃しています。まず、requestAlwaysAuthorizationまたはrequestWhenInUseAuthorization()を使用して許可を求める必要があります。したがって、viewDidLoad()は次のようになります。

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()
}

次に、Info.plistここに示すとおり 。

64
danilopez.dev

最初にこの2行をplistファイルに追加します

1）NSLocationWhenInUseUsageDescription

2）NSLocationAlwaysUsageDescription

次に、これは完全に実装するクラス作業です

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)")
        }
}
}
22
jayesh kavathiya

理由はわかりませんが、startUpdatingLocationがiOS 7シミュレーターでユーザープロンプトを表示していないようですが、手動で有効にした場合、新しい形式のデリゲートメソッドを使用すると期待どおりに機能しました：

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)")
}

使用している形式はiOS 5または6から廃止されているため、Swiftブリッジングレイヤーではまったくサポートされていません。

6
David Berry

同じ問題があった。 didUpdateLocations-動作していませんでした。アプリを実行します。 [設定]ページ-> [プライバシー]-> [位置情報]に移動し、位置情報サービスをオフにします。 didFailWithErrorは、位置情報サービスの不在に関するエラーをキャッチします。次に、電源を入れます。その瞬間から、didUpdateLocationsは場所をキャッチします。

3
salty

2つの方法があるといいのですが。

    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()
}

CLLocationManagerDelegateの実装：

//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

  }

CLLocationDelegate許可の確認：

 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：changeStatusToOnまたはchangeStatusToOffは、Labelテキストを緑/赤でオン/オフにするUILabel Extenionメソッドです。

2
A.G

Swiftの場合

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)")
    }


}
2
Steffen

動作する非常にシンプルなコードを次に示します。

最初に、Core LocationフレームワークをGeneral/Linked Frameworks and Librariesに追加します

次に、Info.plistに以下を追加します。

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

これは私のViewController.Swiftファイルです：

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)")
    }

}
2
Jarda Pavlíček

nSLocationWhenInUseUsageDescriptionまたはNSLocationAlwaysUsageDescriptionを構成ファイルに追加することを忘れないでください（ターゲット/情報/カスタムiOSターゲットプロパティ

1
Vassily

スイフト：

次を追加

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)")
    }
}
0
Rajesh Loganathan

これにより、許可が求められ、許可が与えられた場合にアラートで終了します。戻るボタンを押すと追跡を停止します。

info.plist

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

クラス：

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)
            })
        }

    }
0
Gary Davies

毎回「場所のシミュレーション」をクリックせずに、デフォルトでユーザーの場所を更新したい場合は、

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

シミュレータでアプリを実行すると、場所が自動的に/デフォルトで更新されます。 Swift 2！

0
Naishta

info.plistに以下の2プロパティを追加します

NSLocationWhenInUseUsageDescription : Location information is used for fraud prevention

Privacy - Location Usage Description : Location information is used for fraud prevention
0
Mitul Marsoniya