Can i use "com.apple.springboard.lockcomplete" notification?

Question

I am trying to find device lock state as UIApplicationState gives the wrong state when Lock the device, it gives UIApplicationStateActive for few second.

I found one solution using Darwin notifications for notification "com.apple.springboard.lockcomplete".

Is it the correct way to get Lock state? Does Apple allow this?

Answer 1

No Apple won't allow to use "com.apple.springboard.lockcomplete".My application get rejected due to this.