[Question] When i clear controls, and adding others my pages redrawing from center, any fix?

[ne4sp]

Question

I have NavigationBar, three pages, so when I routing between them, sometimes page is redrawing (with navigationBar, like it`s restarted). Any ides how to fix it?

I`ve tried to use page.go and there was the same bug.

Code sample

import flet as ft

def main (page: ft.Page):
    page.window.full_screen = True
    a = ft.Column(
        [
            ft.Text('Page A', theme_style=ft.TextThemeStyle.DISPLAY_SMALL)
        ]
    )
    b = ft.Column(
        [
            ft.Text('Page B', theme_style=ft.TextThemeStyle.DISPLAY_SMALL)
        ]
    )

    def navigation_page_change(e):
        ix = e.control.selected_index
        if ix == 0:
            page.clean()
            page.add(a)
        elif ix == 1:
            page.clean()
            page.add(b)

    page.navigation_bar = ft.NavigationBar(
        destinations=[
            ft.NavigationBarDestination(icon=ft.Icons.LIST, label="A"),
            ft.NavigationBarDestination(icon=ft.Icons.ADD_TASK, label="B"),
        ],
        on_change=lambda e: navigation_page_change(e)
    )
    page.update()

ft.app(main)

Error message

No response

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• I have searched for answers to my question both in the issues and in previous discussions.

[ne4sp]

This is what i mean

2025-04-08.13-09-55.mp4

I cant upload video over 10mb, so i just spam routing to second page. This works with usual routing.

[ndonkoHenri]

I think setting the page transitions theme to None can be of help: https://flet.dev/docs/reference/types/pagetransitionstheme/#usage-example

[ne4sp]

Escaping redrawing from center - yes, but now instead of redrawing, that`s blink by dark theme, and then shows controls.