In jetpack compose api guidelines, under hoisted s...

# compose

[Shawn Tucker]

In jetpack compose api guidelines, under hoisted state types (https://github.com/androidx/androidx/blob/androidx-main/compose/docs/compose-api-guidelines.md#hoisted-state-types

It says that it is best to provide VerticalScrollerState instead of

scrollPosition: Int,
scrollRange: Int,
onScrollPositionChange: (Int) -> Unit,
onScrollRangeChange: (Int) -> Unit

The issue I am experiencing with this approach is that now I can not update my viewModel when "onSomethingHappened". I tried adding a callback to my custom state object but it just did not feel right.

Is there a suggestion/best practice about how I can observe changes to my custom state object (and each of the parameters in it)?

[Adam Powell]

If the source of truth lives in your viewmodel, your implementation of the state interface can delegate to that viewmodel