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BottomAppBar

A material design bottom app bar.

Examples​

Live example

BottomAppBar​

import flet as ft


def main(page: ft.Page):
    page.horizontal_alignment = page.vertical_alignment = "center"

    page.floating_action_button = ft.FloatingActionButton(icon=ft.Icons.ADD)
    page.floating_action_button_location = ft.FloatingActionButtonLocation.CENTER_DOCKED

    page.appbar = ft.AppBar(
        title=ft.Text("Bottom AppBar Demo"),
        center_title=True,
        bgcolor=ft.Colors.GREEN_300,
        automatically_imply_leading=False,
    )
    page.bottom_appbar = ft.BottomAppBar(
        bgcolor=ft.Colors.BLUE,
        shape=ft.NotchShape.CIRCULAR,
        content=ft.Row(
            controls=[
                ft.IconButton(icon=ft.Icons.MENU, icon_color=ft.Colors.WHITE),
                ft.Container(expand=True),
                ft.IconButton(icon=ft.Icons.SEARCH, icon_color=ft.Colors.WHITE),
                ft.IconButton(icon=ft.Icons.FAVORITE, icon_color=ft.Colors.WHITE),
            ]
        ),
    )

    page.add(ft.Text("Body!"))


ft.app(main)

Properties​

bgcolor​

The fill color to use for the BottomAppBar. Default color is defined by current theme.

clip_behavior​

The content will be clipped (or not) according to this option.

Value is of type ClipBehavior and defaults to ClipBehavior.NONE.

content​

A child Control contained by the BottomAppBar.

elevation​

This property controls the size of the shadow below the BottomAppBar.

Defaults to 4.

height​

The height of the BottomAppBar.

Defaults to 80.0 in material 3.

notch_margin​

The margin between the FloatingActionButton and the BottomAppBar's notch.

Can be visible only if shape=None.

padding​

Empty space to inscribe inside a container decoration (background, border). Padding is an instance of Padding class.

Defaults to padding.symmetric(vertical=12.0, horizontal=16.0).

shadow_color​

The color of the shadow below the BottomAppBar.

shape​

The notch that is made for the floating action button.

Value is of type NotchShape.

surface_tint_color​

The color used as an overlay on bgcolor to indicate elevation.

If this is None, no overlay will be applied. Otherwise this color will be composited on top of bgcolor with an opacity related to elevation and used to paint the BottomAppBar's background.

Defaults to None.