Senden Standort-updates alle 30 Minuten in Swift

Habe ich hintergrund-Modus für die Standort-Dienste und-Ziel zu senden, Standort (Breitengrad und Längengrad), um die server alle 30 Minuten. Für jetzt bin ich den Druck genauso in der Konsole. Es scheint zu funktionieren für eine Weile, aber ich Frage mich, wie arbeite ich mit NSTimer in diesem Fall. Und von wo soll ich das aufrufen?

import UIKit
import CoreLocation

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate, CLLocationManagerDelegate {

    var window: UIWindow?
    var locationManager = CLLocationManager()

    func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
        //Override point for customization after application launch.
        return true
    }

    func applicationWillResignActive(application: UIApplication) {
        //Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
        //Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.
    }

    func applicationDidEnterBackground(application: UIApplication) {
        //Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
        //If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.

        self.locationManager.delegate = self
        self.locationManager.startUpdatingLocation() //I know i should be using signification location option here. this is just for testing now.
    }

    func locationManager(manager: CLLocationManager!, didUpdateToLocation newLocation: CLLocation!, fromLocation oldLocation: CLLocation!) {
        self.sendBackgroundLocationToServer(newLocation);
    }

    func sendBackgroundLocationToServer(location: CLLocation) {
        var bgTask = UIBackgroundTaskIdentifier()
        bgTask = UIApplication.sharedApplication().beginBackgroundTaskWithExpirationHandler { () -> Void in
            UIApplication.sharedApplication().endBackgroundTask(bgTask)
        }

        println(location.coordinate.latitude)

        if (bgTask != UIBackgroundTaskInvalid)
        {
            UIApplication.sharedApplication().endBackgroundTask(bgTask);
            bgTask = UIBackgroundTaskInvalid;
        }
    }

    func applicationWillEnterForeground(application: UIApplication) {
        //Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
        application.beginBackgroundTaskWithExpirationHandler{}
    }

    func applicationDidBecomeActive(application: UIApplication) {
        //Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
        application.beginBackgroundTaskWithExpirationHandler{}
    }

    func applicationWillTerminate(application: UIApplication) {
        //Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
        application.beginBackgroundTaskWithExpirationHandler{}
    }


}

Vielleicht ruft application.beginBackgroundTaskWithExpirationHandler{} ist eine schlechte Idee? Welche Möglichkeiten haben ich gehe hier mit?

InformationsquelleAutor der Frage psharma | 2014-10-09