rememberSnapFlingBehavior does not snap on desktop when using a scroll wheel

[aljohnston112]

Describe the bug
rememberSnapFlingBehavior does not snap items to the center of the LazyColumn when scrolling via scroll wheel on desktop.

Affected platforms

• Desktop

Versions

• Kotlin version*: 1.9.0
• Compose Multiplatform version*: 1.4.3
• OS version(s)* (required for Desktop and iOS issues): Linux 6.4.6-100.fc37.x86_64
• OS architecture (x86 or arm64): x86
• JDK (for desktop issues): corretto-18.0.2

To Reproduce
Wrap this in a composable function

    val itemHeight = 48.dp
    val itemHeightModifier = modifier.height(itemHeight)
    LazyColumn(
        state = lazyListState,
        flingBehavior = rememberSnapFlingBehavior(lazyListState = lazyListState),
        modifier=itemHeightModifier.fillMaxWidth()
    ){
        items(
            5,
            key = { it }
        ){
            Text(it.toString(), modifier=itemHeightModifier)
        }
    }

Expected behavior
When scrolling through the LazyColumn and then stopping the scrolling, I expect the flingBehavior to snap the closest item to the center of the LazyColumn.

I can test this on Windows 10 later.

[eymar]

reproduced on Ubuntu (I guess the behaviour is OS independent).

it's likely related: #3447

Here is a screen recording. Desktop is on the left (scrolling using a mouse wheel), and android is on the right (using touch gestures: dragging).

simplescreenrecorder-2023-08-04_10.29.15.webm

[garretyoder]

In the other referenced similar issue #3447 I posted a workaround that works with a pager, it can probably be adapted for your use case as well.

[okushnikov]

Please check the following ticket on YouTrack for follow-ups to this issue. GitHub issues will be closed in the coming weeks.