MediumTopAppBar

@Composable
fun ExitUntilCollapsedMediumTopAppBar() {
    val scrollBehavior = TopAppBarDefaults.exitUntilCollapsedScrollBehavior()
    Scaffold(
        modifier = Modifier.nestedScroll(scrollBehavior.nestedScrollConnection),
        topBar = {
            MediumTopAppBar(
                title = {
                    Text(
                        "Medium TopAppBar",
                        maxLines = 1,
                        overflow = TextOverflow.Ellipsis
                    )
                },
                navigationIcon = {
                    IconButton(onClick = { /* doSomething() */ }) {
                        Icon(
                            imageVector = Icons.Filled.Menu,
                            contentDescription = "Localized description"
                        )
                    }
                },
                actions = {
                    IconButton(onClick = { /* doSomething() */ }) {
                        Icon(
                            imageVector = Icons.Filled.Favorite,
                            contentDescription = "Localized description"
                        )
                    }
                },
                scrollBehavior = scrollBehavior
            )
        },
        content = { innerPadding ->
            LazyColumn(
                contentPadding = innerPadding,
                verticalArrangement = Arrangement.spacedBy(8.dp)
            ) {
                val list = (0..75).map { it.toString() }
                items(count = list.size) {
                    Text(
                        text = list[it],
                        style = MaterialTheme.typography.bodyLarge,
                        modifier = Modifier
                            .fillMaxWidth()
                            .padding(horizontal = 16.dp)
                    )
                }
            }
        }
    )
}