How to make an asynchronous task to change the text on the main page?

[izzy8799]

I need to make a function so that it updates the text on the main page. But so that the program does not hang. How can I do it?

import flet as ft
import os, subprocess

def main(page: ft.Page):
    page.title = "StupidAI"
    def cancel_stop(e):
        dlg_modal.open = False
        page.update()
    def confirm_stop(e):
        dlg_modal.open = False
        page.update()
        page.window_close()
    def stop(e):
        page.dialog = dlg_modal
        dlg_modal.open = True
        page.update()
    dlg_modal = ft.AlertDialog(
        modal=True,
        title=ft.Text("Потвердите остановку"),
        content=ft.Text("Вы уже всё? Уходите?"),
        actions=[
            ft.TextButton("Да", on_click=confirm_stop),
            ft.TextButton("Нет", on_click=cancel_stop),
        ],
        actions_alignment=ft.MainAxisAlignment.END
    )
    page.snack_bar = ft.SnackBar(content=ft.Text(""))
    #page.snack_bar = ft.SnackBar(ft.Text("Ядро работает!"))    #page.snack_bar.open = True
    def route_change(route):
        page.views.clear()
        page.views.append(
            ft.View(
                "/",
                [
                    ft.AppBar(title=ft.Text("Главная страница"), bgcolor=ft.colors.SURFACE_VARIANT),
                    ft.ElevatedButton("Информация о хосте", on_click=lambda _: page.go("/host_info")),
                    ft.ElevatedButton("Версия StupidAI", on_click=lambda _: page.go("/sa_version")),
                    ft.ElevatedButton("Остановить", on_click=stop)
                ],
            )
        )
        if page.route == "/host_info":
            page.views.append(
                ft.View(
                    "/host_info",
                    [
                        ft.AppBar(title=ft.Text("Информация о хосте"), bgcolor=ft.colors.SURFACE_VARIANT),
                        ft.Text(value=os.popen("neofetch --stdout").read())
                        #ft.ElevatedButton("Go Home", on_click=lambda _: page.go("/")),
                    ],
                )
            )
        page.update()
        if page.route == "/sa_version":
            page.views.append(
                ft.View(
                    "/sa_version",
                    [
                        ft.AppBar(title=ft.Text("Версия StupidAI"), bgcolor=ft.colors.SURFACE_VARIANT),
                        ft.Text(value="ем ну типа два бож")
                        #ft.ElevatedButton("Go Home", on_click=lambda _: page.go("/")),
                    ],
                )
            )
        page.update()
    def view_pop(view):
        page.views.pop()
        top_view = page.views[-1]
        page.go(top_view.route)

    page.on_route_change = route_change
    page.on_view_pop = view_pop
    page.go(page.route)

ft.app(target=main)

[FeodorFitsner]

Does it hang because of neofetch --stdout call?

[izzy8799]

No, neofetch --stdout is not shown on the home page, and it should not update every second

[izzy8799]

Soo how?

[FeodorFitsner]

Run everything blocking in a separate thread.