Can I create `viewModel` scoped to a `composable` using `navigation-compose`?

# compose

[zoha131]

Can I create viewModel scoped to a composable using navigation-compose?

[Ian Lake]

That's what you get already when you use viewModel() inside those composables

[nrobi]

@Ian Lake correct me if I'm wrong but AFAIK that way it will be scoped to the Fragment/Activity from where you call setContent, since it has to be tied to a ViewModelStoreOwner

[nrobi]

https://issuetracker.google.com/issues/165642391

[Ian Lake]

You are indeed wrong 😄 Navigation provides its own ViewModelStoreOwner for each NavBackStackEntry as per the docs: https://developer.android.com/guide/navigation/navigation-programmatic#navbackstackentry

[Ian Lake]

NavHost overrides the ambients so that viewModel() within the composable uses that scoped owner

[Ian Lake]

This is mentioned in the Navigation Compose release notes: https://developer.android.com/jetpack/androidx/releases/navigation#compose-1.0.0-alpha01

[Ian Lake]

This ability to scope a ViewModel to individual composables is indeed a separate problem that is not yet solved, you are right about that part though

[nrobi]

🎊 Ahh, thanks a lot for the clarification, didn't know about this 😁

[zoha131]

I was reading the documentation and found nothing there about viewmodel. Now I am clear. thanks @Ian Lake