Slider support on_pressed and on_released event

[moshstudio]

I want to use Slider to implement a audio slide control component,but there's no on_pressed and on_release event, it bothers me >_<

[ndonkoHenri]

Why not use the on_change event?
https://flet.dev/docs/controls/slider#on_change

[moshstudio]

Why not use the on_change event? https://flet.dev/docs/controls/slider#on_change

Slider goes with Audio playing，but when i pressed Slider, Audio must no more push the Slider untill i release the Slider, so i need to know the Slider press and release event. (forgive my poor english)

[FeodorFitsner]

I guess Slider.onChangeStart and Slider.onChangeEnd should work then?

[moshstudio]

I guess Slider.onChangeStart and Slider.onChangeEnd should work then?

Yeah, that's exactly what i need! Could you please fix it? that'll be a big help.[smile face]

[FeodorFitsner]

Sure, will make a PR tomorrow.

[FeodorFitsner]

Sample code:

import flet as ft

def main(page: ft.Page):
    page.add(
        ft.Slider(
            width=200,
            on_change=lambda e: print("ON CHANGE:", e.data),
            on_change_start=lambda e: print("ON CHANGE START:", e.data),
            on_change_end=lambda e: print("ON CHANGE END:", e.data),
        ),
    )

ft.app(target=main)

[FeodorFitsner]

The feature has been published as a pre-release and can be installed with the following command:

pip install flet --pre

Usage example:

import flet as ft

def main(page: ft.Page):
    page.add(
        ft.Slider(
            width=200,
            on_change=lambda e: print("ON CHANGE:", e.data),
            on_change_start=lambda e: print("ON CHANGE START:", e.data),
            on_change_end=lambda e: print("ON CHANGE END:", e.data),
        ),
    )

ft.app(target=main)