ios - Get notified in the background when app's "location" and "background app refresh" permissions change -


does know if app can notified in background system when app permissions change? i'm interested in getting notified when user changes "location" permission , "background app refresh" permission.

so far have looked call-back method:

locationmanager(manager: cllocationmanager!, didchangeauthorizationstatus status: clauthorizationstatus)

however, app doesn't notified in background.

i tried adding observer notification:

uiapplicationbackgroundrefreshstatusdidchangenotification

but can't work either.

here's code:

func application(application: uiapplication, didfinishlaunchingwithoptions launchoptions: [nsobject: anyobject]?) -> bool {             nsnotificationcenter.defaultcenter().addobserver(self, selector: "checkbackgroundpermission", name: uiapplicationbackgroundrefreshstatusdidchangenotification, object: nil)      locationmanager = cllocationmanager()     locationmanager.delegate = self     locationmanager.pauseslocationupdatesautomatically = false      if(locationmanager.respondstoselector("requestalwaysauthorization")) {         locationmanager.requestalwaysauthorization()     }      if launchoptions?[uiapplicationlaunchoptionslocationkey] != nil {         locationmanager = cllocationmanager()         locationmanager.delegate = self         locationmanager.pauseslocationupdatesautomatically = false          let prefs:nsuserdefaults = nsuserdefaults.standarduserdefaults()         let uuidstring = prefs.stringforkey("uuid") string!         let uuid : nsuuid? = nsuuid(uuidstring: uuidstring string)          beaconregiongeneral = clbeaconregion(proximityuuid: nsuuid(uuidstring: uuidstring), identifier: "general")          locationmanager.startrangingbeaconsinregion(beaconregiongeneral)         setisranging(true)     }       if(application.respondstoselector("registerusernotificationsettings:")) {         application.registerusernotificationsettings(             uiusernotificationsettings(                 fortypes: uiusernotificationtype.alert | uiusernotificationtype.sound,                 categories: nil             )         )     }      return true }  func checkbackgroundpermission() {     sendlocalnotificationwithmessage("checkbackgroundpermission", playsound: false)     println("checkbackgroundpermission") }  func locationmanager(manager: cllocationmanager!, didchangeauthorizationstatus status: clauthorizationstatus) {     sendlocalnotificationwithmessage("didchangeauthorizationstatus", playsound: true)     println("didchangeauthorizationstatus") }

you can use below delegate method (from cllocationmanagerdelegate protocol) notifications. 

 optional func locationmanager(_ manager: cllocationmanager!, didchangeauthorizationstatus status: clauthorizationstatus)

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