joplin-notes/joplin notion extension/Web Development/Python/Flet/Intro.md
2026-11-04 00:33:23 +05:30

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Intro https://flet.dev/docs/ Flutter in python

  • Installation pip install flet (Need python version>3.8)
  • Running code python counter.py
  • Sample code
import flet as ft

def main(page: ft.Page):
    page.title = "Flet counter example"
    page.vertical_alignment = ft.MainAxisAlignment.CENTER

    txt_number = ft.TextField(value="0", text_align=ft.TextAlign.RIGHT, width=100)

    def minus_click(e):
        txt_number.value = str(int(txt_number.value) - 1)
        page.update()

    def plus_click(e):
        txt_number.value = str(int(txt_number.value) + 1)
        page.update()

    page.add(
        ft.Row(
            [
                ft.IconButton(ft.icons.REMOVE, on_click=minus_click),
                txt_number,
                ft.IconButton(ft.icons.ADD, on_click=plus_click),
            ],
            alignment=ft.MainAxisAlignment.CENTER,
        )
    )

ft.app(target=main)
  • Packing Need to install pyinstaller first using pip install pyinstaller then flet pack counter.py