为什么在 iOS 9.3 中杀死/终止应用程序后后台位置不起作用

Question

杀死/终止应用程序后后台位置不起作用。我在我的应用程序中使用 NSLocationAlwaysUsageDescription 和 Background fetch 也来自 Capabilities，这里我的代码是：

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.distanceFilter = 1000.0
        locationManager.allowsBackgroundLocationUpdates = true
        locationManager.startUpdatingLocation()
    }

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


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

        if( CLLocationManager.authorizationStatus() == CLAuthorizationStatus.AuthorizedWhenInUse ||
            CLLocationManager.authorizationStatus() == CLAuthorizationStatus.AuthorizedAlways){

           let currentLocation = manager.location
            let notification = UILocalNotification()
            notification.alertBody = " Lat \(currentLocation?.coordinate.latitude), Long \(currentLocation?.coordinate.longitude)"
            notification.soundName = UILocalNotificationDefaultSoundName
            UIApplication.sharedApplication().scheduleLocalNotification(notification)

            print(" Lat \((currentLocation?.coordinate.latitude))!, Long \((currentLocation?.coordinate.longitude))!")
        }

    }

}

此代码在单击主页按钮时有效，但在此情况下终止/终止应用程序后无法正常工作，请在此处给出我在代码中遗漏的解决方案。

Answer 1

经过一些更改后，我通过执行这些更改和代码在后台模式和前台模式下正常工作，现在能够获取位置来解决我自己的问题。

斯威夫特 3

    locationManager = CLLocationManager()
    locationManager.delegate = self
    locationManager.desiredAccuracy = kCLLocationAccuracyBest
    locationManager.distanceFilter = 2000
    if #available(iOS 9.0, *) {
        locationManager.allowsBackgroundLocationUpdates = true
    }
    locationManager.startMonitoringSignificantLocationChanges()
    locationManager.pausesLocationUpdatesAutomatically = true
    locationManager.requestAlwaysAuthorization()