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CupertinoNavigationBar

An iOS-styled bottom navigation tab bar.

Navigation bars offer a persistent and convenient way to switch between primary destinations in an app.

Examples​

Live example

A simple CupertinoNavigationBar​

import flet as ft

def main(page: ft.Page):
    page.title = "CupertinoNavigationBar Example"
    page.navigation_bar = ft.CupertinoNavigationBar(
        bgcolor=ft.colors.AMBER_100,
        inactive_color=ft.colors.GREY,
        active_color=ft.colors.BLACK,
        on_change=lambda e: print("Selected tab:", e.control.selected_index),
        destinations=[
            ft.NavigationBarDestination(icon=ft.icons.EXPLORE, label="Explore"),
            ft.NavigationBarDestination(icon=ft.icons.COMMUTE, label="Commute"),
            ft.NavigationBarDestination(
                icon=ft.icons.BOOKMARK_BORDER,
                selected_icon=ft.icons.BOOKMARK,
                label="Explore",
            ),
        ]
    )
    page.add(ft.SafeArea(ft.Text("Body!")))


ft.app(main)

Properties​

active_color​

The foreground color of the icon and title of the selected destination.

bgcolor​

The color of the navigation bar itself.

border​

Defines the border of this navigation bar. The value is an instance of Border class.

destinations​

Defines the appearance of the button items that are arrayed within the navigation bar.

The value must be a list of two or more NavigationBarDestination instances.

icon_size​

The size of all destination icons.

Defaults to 30.

inactive_color​

The foreground color of the icon and title of the unselected destinations.

selected_index​

The index into destinations for the current selected NavigationBarDestination or None if no destination is selected.

Events​

on_change​

Fires when selected destination changed.