Cancelling download when app is killed.

I am using flutter_downloader: ^1.5.0 and after the app is killed the download still continues(on Android), is there any way that this could be controlled? I currently want the downloads to be canceled after the app is killed, I have tried to cancel using WidgetsBindingObserver since the lifecycle is inaccurate and there is surely no way to tell if the app is killed (AppLifecycleState.inactive is always called before AppLifecycleState.paused even when pausing while the app remains in the background).