Is it possible to use Collapsing Toolbar with Lazy...

# compose

[André Thiele]

Is it possible to use Collapsing Toolbar with LazyColumn in Jetpack Compose? Or is this not possible right now? I would like to migrate the RecyclerView to LazyColumn while using Collapsing Toolbar. (how would you add layout_behavior = appbar_scrolling_view_behavior?)

[nitrog42]

your CollapsingToolbar is an Android standard View right ? Then I don't think i will ever work

[André Thiele]

yes, I use the same toolbar with many different fragments

[Zun]

I don’t think there’s native support for this, however you can observe the scroll position change of your list then adjust the height/position of the toolbar

[André Thiele]

ah thats a good idea, i could then just set the toolbar to expanded = false / true

[André Thiele]

if its below a certain threshold or scrolled at all

[nitrog42]

it will probably require some adjustement but it can be done that way

[Saiedmomen]

Check Jetsnack sample app. It has implemented a similar effect.

[André Thiele]

Jetsnack is Compose Only, I want to integrate compose in traditional app

[André Thiele]

@Zun how would you check if the scroll position is != 0 in compose?

[Saiedmomen]

listState.firstVisibleItemIndex

[André Thiele]

that is the first visible item index, not scroll offset