Register local notification from background

Question

I have a situation where I have to present alert while my app is in background. So I was thinking that the solution is Local notification. But the problem is that, I want to show that alert only when user has crossed a particular predefined location point.

So I have to show the notification without any registration for it in Foreground(Or you can say register the local notification in background).

Is it doable ?

Please help.

Answer 1

Yes, you can let your run in the background while you still receive location updates.

You have to the add location to UIBackgroundModes in your apps info.plist ;

And any instance of CLLocationManager will keep receiving location updates. But be aware that this could drain the battery of the iPhone really fast, so it's a good idea to only monitor major location changes.