Hey, what’s the best way to smooth scroll to a particular position in

LazyColumnFor

I’m using alpha08, and I can find methods like

LazyListState.snapToItemIndex

but this is without smooth scrolling and the method

LazyListState.smoothScrollBy

doesn’t take the index. How to smooth scroll to a specific index? Does the API exists for this right now?

https://cs.android.com/androidx/platform/frameworks/support/+/androidx-master-dev:compose/foundation/foundation/src/commonMain/kotlin/androidx/compose/foundation/lazy/LazyListState.kt;l=227?q=LazyListState the

.scroll {}

api lets you take full control over smooth scrolling over time

Thanks for the quick response. I tried the

.scroll {}

API, and I’m not sure if I’m using it correctly. There is only one method for

ScrollScope

and that is

fun scrollBy(pixels: Float): Float

So, I tried this piece of code

onClick = {
    coroutineScope.launch {
        state.scroll {
            state.snapToItemIndex(15)
        }
    }
}

But there is not scrolling or snapping to the index in this case, am I doing something wrong here?

You can animate the scroll yourself by using scrollBy and withFrameNanos or any of the other suspending animation APIs; you can check the current visible items in between frames

There should be a

smoothScrollTo

available iirc.

Agree with @Dominaezzz, right now the easiest way is to forget about smooth and use

snapToItemIndex

.