Hololens2(uwp) life cycle

I develop application for Hololens2. I maintain application even if I close application with a home button in the actual machine. Is there the method to trigger an event of LifeCycle of uwp?
Thanks you!!

ue4.27
visualstudio2019

You can use “ApplicationWillEnterBackgroundDelegateEventNode” by Attaching “ApplicationLifecycleComponent” to Actor.