*How to enforce single-item snapping in LazyColumn...

# compose

[ankur2037]

How to enforce single-item snapping in LazyColumn with SnapFlingBehavior?
I have a full-page-sized LazyColumn where each item uses Modifier.fillParentMaxHeight(). I want a pager-like scrolling experience where one item is visible at a time.

I tried using rememberSnapFlingBehavior with SnapPosition.Start, and while the snapping behavior works as expected, when scrolling at high velocity, multiple items (pages) scroll at once.
I want a strict single-item snap behavior, similar to SingleSnapFlingBehavior. How can I achieve this

[Winson Chiu]

Is there a reason you don't just use VerticalPager?

[ankur2037]

The user experience needs to be configurable i.e. it could be a continuous scroll experience with smaller items (like facebook) as well as could be a pager kind of experience with full page items (like tiktok). Hence I wanted to use the same lazy column with code configuration for both experience

[Mayank]

This is where compose shines. Extract the content into a composable and behind a condition either use LazyColumn (for continuous scrolling) or VerticalPager (for single page scroll)
Something like

var isContinuousScrolling by remember { mutableStateOf(false) }
if (isContinuousScrolling) {
    LazyColumn {
        items(items.size) { index ->
            Content()
        }
    }
} else {
    VerticalPager(
        rememberPagerState { items.size }
    ) { page ->
        Content()
    }
}

[ankur2037]

This should work, thanks for the suggestion.