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위치 서비스를 위해 백그라운드 모드를 설정하고 30 분마다 위치를 위도와 경도로 보내려고합니다. 지금은 콘솔에 같은 것을 인쇄하고 있습니다. 그것은 잠시 동안 작동하는 것하지만 나는이 경우 NSTimer와 어떻게 작동하는지 궁금합니다. 그리고 어디에서 불러야합니까?Swift에서 30 분마다 위치 업데이트를 전송합니다.
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{}
}
}
아마도 application.beginBackgroundTaskWithExpirationHandler{}을 부르는 것이 좋습니다. 여기서 어떤 옵션을 사용할 수 있습니까?
: fromLocation'가되지 않습니다 - 대답에 대한 CLLocationManagerDelegate 워드 프로세서 – Paulw11