Run your first Flet app Link to heading

Pre-requisites Link to heading

Python 3
Virtual environment

Create Flet app Link to heading

Install Flet:

pip install flet

Create a new Flet project:

flet create

Run the app:

flet run

Create a new file (example.py) and add this Flet code:

import flet as ft


def main(page):

    page.adaptive = True

    page.appbar = ft.AppBar(
        leading=ft.TextButton("New", style=ft.ButtonStyle(padding=0)),
        title=ft.Text("Adaptive AppBar"),
        actions=[
            ft.IconButton(ft.CupertinoIcons.ADD, style=ft.ButtonStyle(padding=0))
        ],
        bgcolor=ft.Colors.with_opacity(0.04, ft.CupertinoColors.SYSTEM_BACKGROUND),
    )

    page.navigation_bar = ft.NavigationBar(
        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="Bookmark",
            ),
        ],
        border=ft.Border(
            top=ft.BorderSide(color=ft.CupertinoColors.SYSTEM_GREY2, width=0)
        ),
    )

    page.add(
        ft.SafeArea(
            ft.Column(
                [
                    ft.Checkbox(value=False, label="Dark Mode"),
                    ft.Text("First field:"),
                    ft.TextField(keyboard_type=ft.KeyboardType.TEXT),
                    ft.Text("Second field:"),
                    ft.TextField(keyboard_type=ft.KeyboardType.TEXT),
                    ft.Switch(label="A switch"),
                    ft.FilledButton(content=ft.Text("Adaptive button")),
                    ft.Text("Text line 1"),
                    ft.Text("Text line 2"),
                    ft.Text("Text line 3"),
                ]
            )
        )
    )


ft.app(main)

Run this new app:

flet run example.py

Create APK for Android Link to heading

Build APK:

flet build apk

Now, you just need to install the APK on an Android device.

Install Waydroid (if you are on Linux): https://docs.waydro.id/usage/install-on-desktops

Install the app:

waydroid app install

Change window size in Waydroid (if needed):

waydroid prop set persist.waydroid.width 200
waydroid prop set persist.waydroid.height 600
sudo waydroid restart waydroid-container