iphone - How to create background services to run even when the app is killed, in iOS? -

i need create android equivalent functionality in ios, records gps , other sensor readings when app killed, in ios be, when app swiped app switcher.

in android, service class able this. notification stays there in notification panel , cannot swipe it, unless app allows so..

many apps add widgets notification panel using functionality like, clean master. clean master widget floats in notification panel , of functionality app self.

ios not has background service concept. yes, can use gps location when user app in background not work when app totally close.