我需要在AppWidgetProvider中观察一些LiveData(在onUpdate期间)。我想知道，以下哪个是更合适的LifeCycleObserver？ForeverStartLifecycleOwner(自定义)importandroid.arch.lifecycle.Lifecycle;importandroid.arch.lifecycle.LifecycleOwner;importandroid.arch.lifecycle.LifecycleRegistry;importandroid.support.annotation.NonNull;publicenumFore