How to add scrollBar to dropdownMenu?

[Exidel]

dropdownMenu 's Scope is a scrollable column however it doesn't allow you to put scroll bar into that and throw exception
Exception in thread "AWT-EventQueue-0 @coroutine#3" java.lang.IllegalArgumentException: Can't represent a size of 1073741952 in Constraints
if you trying to use ddMenu inside Box(Modifier.verticalScroll(scrollBarState)) as well as rememberLazyListState()

[svercl]

I can confirm a similar issue using a Box with a VerticalScrollbar inside :/

[svercl]

I should note that I am using Modifier.verticalScroll(scrollState).

[akurasov]

@bradms could you share a small reproducer for your issue?

[svercl]

Sure, I narrowed down the code which crashes to this

val listState = rememberScrollState()
Box(
    modifier = Modifier
        .fillMaxSize()
        .verticalScroll(state = listState)
) {
    VerticalScrollbar(
        adapter = rememberScrollbarAdapter(listState),
        modifier = Modifier
            .align(Alignment.CenterEnd)
            .fillMaxHeight(),
    )
}

[akurasov]

The issue is the following:
Box with modifier verticalScroll should be on the same level as VerticalScrollbar itself. Otherwise scroll scroll itself. But of course, we it shouldn't crash like this. I'll create a ticket about it (#1616).

Below is your code corrected.

@Composable
@Preview
fun App() {
    val listState = rememberScrollState(0)
    Box(
        modifier = Modifier
            .background(color = Color(180, 180, 180))
    ) {
        Box(
            modifier = Modifier
                .fillMaxSize()
                .verticalScroll(listState)
                .padding(end = 12.dp, bottom = 12.dp)) {
        }

        VerticalScrollbar(
            adapter = rememberScrollbarAdapter(listState),
            modifier = Modifier
                .align(Alignment.CenterEnd)
                .fillMaxHeight(),
        )
    }
}

[svercl]

I originally had some conditional logic inside the Box next to the VerticalScrollbar which would display one of two states which depends on the size of the list. (i.e., no data or having data)
I do agree that it should not crash.

[akurasov]

You just need to create another box one level lower and move this logic there

[svercl]

Yes I understand the problem, but it still should not crash.

[akurasov]

Yes. I created #1616 about it