Is there any behavioural difference between `ViewModelComponent` and `ActivityRetainedComponent`? I’...

# dagger

[Chris Fillmore]

Is there any behavioural difference between ViewModelComponent and ActivityRetainedComponent?
I’m an idiot and took too long to realize that ActivityComponent is not a descendant of ViewModelComponent. So I’m wondering what is the advantage of ViewModelComponent vs ActivityRetainedComponent.
Thanks!

[FunkyMuse]

Activity retained component scopes the view model to the Lifecycle of the activity, whilst the dependencies in the viewmodelcomponent live as long as the view model is alive a.k.a viewmodel's lifecycle

[Chris Fillmore]

Isn’t that the same thing? VM survives configuration changes, just like ActivityRetainedComponent
https://developer.android.com/topic/libraries/architecture/viewmodel#lifecycle

[Ahmed Ibrahim]

ViewModelComponent lives under ActivityRetainedComponent, and it has the same lifecycle as of a `ViewModel`that is annotated with @HiltViewModel.
The most obvious difference is that ViewModelComponent holds an instance to a SavedStateHandle that belongs to a Fragment or an Activity. While ActivityRetainComponent has nothing to do with the SavedStateHandle of its Activity.

[Chris Fillmore]

Ah ok! Thanks for responding! I didn’t realize that