Is it possible to scope a viewmodel to a navigation graph with navigation-compose?

AmbientViewModelStoreOwner

is scoped to NavBackEntry by default. But you can pass "parent"

AmbientViewModelStoreOwner

(the ambient value passed to given

NavHost

) as your own ambient.

Ok cool, so I think thats working. I’m using Hilt to inject some dependencies into my ViewModel, which fails now because I’m creating the ViewModel with a ViewModelProvider. I think I need to pass a ViewModelProvider.Factory but I’m not sure where to get it in compose. Previously in fragments I was using

defaultViewModelProviderFactory

, do you know if theres a substitute in compose? Before compose I had this: https://developer.android.com/training/dependency-injection/hilt-jetpack#viewmodel-navigation

Don't know about that. I use Koin right now 😕

If you're using navigation compose by default they're scoped to the navigation graph

but only view models accessed via

navGraphViewModels

, right?

AmbientViewModelStoreOwner

(used by

viewModel()

) is

NavBackStackEntry

.

This Wednesday will be a good day for you - new APIs in Navigation Compose are coming out to get the

NavBackStackEntry

of parent graphs as well as a new Hilt Navigation artifact which gives you access to a properly scoped Hilt

ViewModelProvider.Factory

@Ian Lake Great news 😄