How to restart the location update when the app is killed by user?

Question

I'm trying to get the user location even if the app is in the background.

The application have also always location permission.

It is working well the app is in the background, but when the user kills the app it doesn't work.

I'm using this startMonitoringSignificantLocationChanges to get the location

locationManager?.startMonitoringSignificantLocationChanges()
locationManager?.allowsBackgroundLocationUpdates = true

But after the phone is restarted, even if app is not running, the location update works. Only when the app is killed by user on the task, it doesn't work.

func applicationDidEnterBackground(_ application: UIApplication) {
        Log.debug("Did Enter Background")
        self.locationManager?.stopMonitoringSignificantLocationChanges()
        self.locationManager           = CLLocationManager()
        self.locationManager?.delegate = self
        self.locationManager?.requestAlwaysAuthorization()
        self.locationManager?.desiredAccuracy = kCLLocationAccuracyBest
        self.locationManager?.distanceFilter = 500
        self.locationManager?.activityType = CLActivityType.otherNavigation
        self.locationManager!.allowsBackgroundLocationUpdates = true
        self.locationManager?.pausesLocationUpdatesAutomatically = false
        self.locationManager?.startMonitoringSignificantLocationChanges()
}

Answer 1

I just solved this by using allowDeferredLocationUpdates

func applicationWillTerminate(_ application: UIApplication) {
        Log.debug("Will Terminate")
        
        self.locationManager?.stopMonitoringSignificantLocationChanges()
        self.locationManager?.allowDeferredLocationUpdates(untilTraveled: 5, timeout: 60000)
        self.locationManager?.startMonitoringSignificantLocationChanges()

}