KeyboardListener
Examples#
Press any keys#
import flet as ft
async def main(page: ft.Page):
pressed_keys = set()
def key_down(e: ft.KeyDownEvent):
pressed_keys.add(e.key)
keys.controls = [ft.Text(k, size=20) for k in pressed_keys]
def key_up(e: ft.KeyUpEvent):
pressed_keys.remove(e.key)
keys.controls = [ft.Text(k, size=20) for k in pressed_keys]
page.add(
ft.Text("Press any keys..."),
ft.KeyboardListener(
content=(keys := ft.Row()),
autofocus=True,
on_key_down=key_down,
on_key_up=key_up,
),
)
ft.run(main)
Bases: Control
A control that calls a callback whenever the user presses or releases a key on a keyboard.
autofocus: bool = False
True if this control will be selected as the initial focus when no other node in its scope is currently focused.
on_key_down: EventHandler[KeyDownEvent] | None = None
Fires when a keyboard key is pressed.
on_key_repeat: EventHandler[KeyRepeatEvent] | None = None
Fires when a keyboard key is being hold, causing repeated events.
on_key_up: EventHandler[KeyUpEvent] | None = None
Fires when a keyboard key is released.