Implement LifecycleService in MediaSessionService and DownloadService #187

LifecycleOwner is a lifecycle aware option for Services. There is a base class LifecycleService which manages this, or you can implement LifecycleOwner and use ServiceLifecycleDispatcher

See https://developer.android.com/reference/androidx/lifecycle/LifecycleService https://developer.android.com/reference/androidx/lifecycle/ServiceLifecycleDispatcher

and https://www.daniweb.com/programming/mobile-development/tutorials/537446/android-native-how-to-implement-lifecycleowner-in-a-service