BottomAppBar

BottomAppBarWithFAB

@OptIn(ExperimentalMaterial3Api::class)
@Preview
@Composable
fun BottomAppBarWithFAB() {
    BottomAppBar(
        actions = {
            TooltipBox(
                positionProvider =
                    TooltipDefaults.rememberTooltipPositionProvider(TooltipAnchorPosition.Above),
                tooltip = { PlainTooltip { Text("Check") } },
                state = rememberTooltipState(),
            ) {
                IconButton(onClick = { /* doSomething() */ }) {
                    Icon(Icons.Filled.Check, contentDescription = "Check")
                }
            }
            TooltipBox(
                positionProvider =
                    TooltipDefaults.rememberTooltipPositionProvider(TooltipAnchorPosition.Above),
                tooltip = { PlainTooltip { Text("Edit") } },
                state = rememberTooltipState(),
            ) {
                IconButton(onClick = { /* doSomething() */ }) {
                    Icon(Icons.Filled.Edit, contentDescription = "Edit")
                }
            }
        },
        floatingActionButton = {
            TooltipBox(
                positionProvider =
                    TooltipDefaults.rememberTooltipPositionProvider(TooltipAnchorPosition.Above),
                tooltip = { PlainTooltip { Text("Add") } },
                state = rememberTooltipState(),
            ) {
                FloatingActionButton(
                    onClick = { /* do something */ },
                    containerColor = BottomAppBarDefaults.bottomAppBarFabColor,
                    elevation = FloatingActionButtonDefaults.bottomAppBarFabElevation(),
                ) {
                    Icon(Icons.Filled.Add, "Add")
                }
            }
        },
    )
}

ExitAlwaysBottomAppBar

/**
 * A sample for a [BottomAppBar] that collapses when the content is scrolled up, and appears when
 * the content scrolled down.
 */
@OptIn(ExperimentalMaterial3Api::class)
@Preview
@Composable
fun ExitAlwaysBottomAppBar() {
    val scrollBehavior = BottomAppBarDefaults.exitAlwaysScrollBehavior()
    Scaffold(
        modifier = Modifier.nestedScroll(scrollBehavior.nestedScrollConnection),
        bottomBar = {
            BottomAppBar(
                actions = {
                    TooltipBox(
                        positionProvider =
                            TooltipDefaults.rememberTooltipPositionProvider(
                                TooltipAnchorPosition.Above
                            ),
                        tooltip = { PlainTooltip { Text("Check") } },
                        state = rememberTooltipState(),
                    ) {
                        IconButton(onClick = { /* doSomething() */ }) {
                            Icon(Icons.Filled.Check, contentDescription = "Check")
                        }
                    }
                    TooltipBox(
                        positionProvider =
                            TooltipDefaults.rememberTooltipPositionProvider(
                                TooltipAnchorPosition.Above
                            ),
                        tooltip = { PlainTooltip { Text("Edit") } },
                        state = rememberTooltipState(),
                    ) {
                        IconButton(onClick = { /* doSomething() */ }) {
                            Icon(Icons.Filled.Edit, contentDescription = "Edit")
                        }
                    }
                },
                scrollBehavior = scrollBehavior,
            )
        },
        floatingActionButton = {
            TooltipBox(
                positionProvider =
                    TooltipDefaults.rememberTooltipPositionProvider(TooltipAnchorPosition.Above),
                tooltip = { PlainTooltip { Text("Add") } },
                state = rememberTooltipState(),
            ) {
                FloatingActionButton(
                    modifier = Modifier.offset(y = 4.dp),
                    onClick = { /* do something */ },
                    containerColor = BottomAppBarDefaults.bottomAppBarFabColor,
                    elevation = FloatingActionButtonDefaults.bottomAppBarFabElevation(),
                ) {
                    Icon(Icons.Filled.Add, "Add")
                }
            }
        },
        floatingActionButtonPosition = FabPosition.EndOverlay,
        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),
                    )
                }
            }
        },
    )
}

SimpleBottomAppBar

@OptIn(ExperimentalMaterial3Api::class)
@Preview
@Composable
fun SimpleBottomAppBar() {
    BottomAppBar(
        actions = {
            TooltipBox(
                positionProvider =
                    TooltipDefaults.rememberTooltipPositionProvider(TooltipAnchorPosition.Above),
                tooltip = { PlainTooltip { Text("Menu") } },
                state = rememberTooltipState(),
            ) {
                IconButton(onClick = { /* doSomething() */ }) {
                    Icon(Icons.Filled.Menu, contentDescription = "Menu button")
                }
            }
        }
    )
}