我在 Android 文档中发现了这一点，我认为您在问题中链接的文档正在谈论使用嵌套滚动来执行此操作。

val toolbarHeight = 48.dp
    val toolbarHeightPx = with(LocalDensity.current) { toolbarHeight.roundToPx().toFloat() }
    val toolbarOffsetHeightPx = remember { mutableStateOf(0f) }

    val nestedScrollConnection = remember {
        object : NestedScrollConnection {
            override fun onPreScroll(available: Offset, source: NestedScrollSource): Offset {

                val delta = available.y
                val newOffset = toolbarOffsetHeightPx.value + delta
                toolbarOffsetHeightPx.value = newOffset.coerceIn(-toolbarHeightPx, 0f)
                return Offset.Zero
            }
        }
    }
    Box(
        Modifier
            .fillMaxSize()

            .nestedScroll(nestedScrollConnection)
    ) {

        LazyColumn(contentPadding = PaddingValues(top = toolbarHeight)) {
            items(100) { index ->
                Text("I'm item $index", modifier = Modifier
                    .fillMaxWidth()
                    .padding(16.dp))
            }
        }
        TopAppBar(
            modifier = Modifier
                .height(toolbarHeight)
                .offset { IntOffset(x = 0, y = toolbarOffsetHeightPx.value.roundToInt()) },
            title = { Text("toolbar offset is ${toolbarOffsetHeightPx.value}") }
        )
    }