问题
I am trying to get location updates even in all states, even when app is killed/terminated/suspended. I have enabled background fetch in xcode and implemented the following code(used reference "Capture location in all states app"). But when i terminate the app it's giving a red line on class AppDelegate. I do not understand what is the problem here.I have done this using the solution of the question "Getting location for an iOS app when it is in the background and even killed" here, But its not working in ios 9.Please help me out or tell me the other solution.
UPDATED CODE -
class AppDelegate: UIResponder, UIApplicationDelegate, CLLocationManagerDelegate {
var window: UIWindow?
var locationManager: CLLocationManager?
var significatLocationManager : CLLocationManager?
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject : AnyObject]?) -> Bool {
if(UIApplication.sharedApplication().backgroundRefreshStatus == UIBackgroundRefreshStatus.Available){
print("yessssss")
}else{
print("noooooo")
}
if let launchOpt = launchOptions{
if (launchOpt[UIApplicationLaunchOptionsLocationKey] != nil) {
self.significatLocationManager = CLLocationManager()
self.significatLocationManager?.delegate = self
self.significatLocationManager?.requestAlwaysAuthorization()
if #available(iOS 9.0, *) {
self.significatLocationManager!.allowsBackgroundLocationUpdates = true
}
self.significatLocationManager?.startMonitoringSignificantLocationChanges()
}else{
self.locationManager = CLLocationManager()
self.locationManager?.delegate = self
self.locationManager?.requestAlwaysAuthorization()
if #available(iOS 9.0, *) {
self.locationManager!.allowsBackgroundLocationUpdates = true
}
self.locationManager?.startMonitoringSignificantLocationChanges()
}
}else{
self.locationManager = CLLocationManager()
self.locationManager?.delegate = self
self.locationManager?.requestAlwaysAuthorization()
if #available(iOS 9.0, *) {
self.locationManager!.allowsBackgroundLocationUpdates = true
}
self.locationManager?.startMonitoringSignificantLocationChanges()
}
return true
}
func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]){
let locationArray = locations as NSArray
let locationObj = locationArray.lastObject as! CLLocation
let coord = locationObj.coordinate
}
func applicationDidEnterBackground(application: UIApplication) {
if self.significatLocationManager != nil {
self.significatLocationManager?.startMonitoringSignificantLocationChanges()
}else{
self.locationManager?.startMonitoringSignificantLocationChanges()
}
}
回答1:
Check this tutorial: http://mobileoop.com/getting-location-updates-for-ios-7-and-8-when-the-app-is-killedterminatedsuspended
And the source code here: https://github.com/voyage11/GettingLocationWhenSuspended
Hope you will get your answer. It's working for me. Now I am trying to make a http request when 'didUpdateLocations' function being called, so that I can store user current location in server when the app is not running(Suspended/terminated/killed).
I don't think apple allowed to make any http request when the app is suspended/terminated. But if server received the request of location update, then I am good to go with that. Because I don't need response back from server. Need a lot of testing....
来源：https://stackoverflow.com/questions/34527972/location-update-even-when-app-is-killed-terminated