swift 进入后台或者点击home键是程序进入后台后，持续定位

进入后台的方法

import UIKit

@UIApplicationMain

class AppDelegate:
UIResponder, UIApplicationDelegate,CLLocationManagerDelegate {

    

    var locationManager :
CLLocationManager?

    

    var window:
UIWindow?

    

    var notificationDict =
NSDictionary()

    

    func applicationDidEnterBackground(application:
UIApplication) {

        

        UIApplication.sharedApplication().beginBackgroundTaskWithExpirationHandler(nil)

        

        if
self.respondsToSelector("IntoTheBackground") {

            

            NSNotificationCenter.defaultCenter().addObserver(self,
selector: "IntoTheBackground", name:
UIApplicationDidEnterBackgroundNotification, object:
nil)

            

        }

        

    }

    

    override
func performSelectorInBackground(aSelector:
Selector, withObject arg:
AnyObject?) {

        

        tik()

        

    }

    

    //计时器

    func tik() {

        if
UIApplication.sharedApplication().backgroundTimeRemaining <
61.0 {

            

            locationManager!.delegate =
self

            

            locationManager?.startUpdatingLocation()

            

            UIApplication.sharedApplication().beginBackgroundTaskWithExpirationHandler(nil)

            

        }

        

    }

    

在需要的页面中viewDidAppear调用方法即可

 override
func viewDidAppear(animated:
Bool) {

        

        super.viewDidAppear(animated)

        

        let model :
ShareModel = ShareModel()

        

        if (!model.NetWorking) {

            

            NSHelper.showAlertTitle("网络不可用，请检查网络连接。", forView:
self.view)

            

            return

            

        }

        

        self.mapView?.delegate =
self

        

        self.search?.delegate =
self

        

        self.manager.pausesLocationUpdatesAutomatically =
false

        

        NSNotificationCenter.defaultCenter().addObserver(self, selector:
"IntoTheBackground", name: UIApplicationWillResignActiveNotification, object:
nil)

        

        view.endEditing(true)

        

         NSNotificationCenter.defaultCenter().addObserver(self, selector:
"keyboardWillHide:", name: UIKeyboardDidHideNotification, object:
nil)

        

    }