Trigger an event when Dark to Sleep ends

BLE Beacons
1

hi,

For IOS, since the beacon doesn’t completely stop broadcasting, is it possible to trigger some delegate methods (such as didrangbeacon or - centralManager:didConnectPeripheral:) when beacon restarts broadcasting, even when the app is suspended or killed?
For a simple example, the beacon is in the pocket of the user (dark-to-sleep and always in range), when he takes out the beacon (light sensed, starts to broadcast), iphone will send a UILocalNotification, even when the app is not in background nor foreground.

I’m not sure which delegate method of your SDK to use, where I can catch that moment and run the code of UILocalNotification, when the app is killed or suspended. (the didrangebeacon method of ios corebluetooth can meet this requirement, I wonder how is was overridden)

And I can make it work only when app is alive with this code:
func proximityContentManager(proximityContentManager: ProximityContentManager, didUpdateContent content: AnyObject?) { UIApplication.sharedApplication().scheduleLocalNotification(localNotif) }

I know this is tricky, thank for your time!

2

Sure thing! With Dark to Sleep, the beacon will stop broadcasting its iBeacon packet, and for your app, that’s the same as if the beacon was out of range => AKA the “exit” or “outside” event/state. When Dark to Sleep ends and the iBeacon packet starts being broadcasted again, that’s the same as “enter” or “inside” event/state. And on iOS, you can detect exits/enters even when the app is not running, suspended or killed, with monitoring:

http://developer.estimote.com/ibeacon/tutorial/part-2-background-monitoring/