I'm confused, after page. update(), page==None?

[laowus]

`
def init(self):
self.page.views.clear()
self.page.views.append(
View(
"/",
[self.appbar, self.layout],
padding=padding.all(0)
)
)
print('self.page.views', self.page.views)
self.page.update()
print(self.page.views)

`

[laowus]

[taaaf11]

For a class, the constructor function should be __init__ not just init. Try this and check if this solves the issue

[laowus]

For a class, the constructor function should be __init__ not just init. Try this and check if this solves the issue

no ，init is a class ‘s function，not __init__’ I just wrote this name as init

[taaaf11]

import flet as ft


def main(page: ft.Page):
    page.views.clear()
    page.views.append(ft.View("/", padding=ft.padding.all(0)))
    print("page.views - before update", page.views)
    page.update()
    print(f"page.views - after update: {page.views}")


ft.app(main)

gives

page.views - before update [View(route='/')]
page.views - after update: [View(route='/', padding='{"l":0,"t":0,"r":0,"b":0}')]

This code is working properly, I can't reproduce the error.

[laowus]

import flet as ft


def main(page: ft.Page):
    page.views.clear()
    page.views.append(ft.View("/", padding=ft.padding.all(0)))
    print("page.views", page.views)
    page.update()
    print(f"page.views: {page.views}")


ft.app(main)

gives

page.views [View(route='/')]
page.views: [View(route='/', padding='{"l":0,"t":0,"r":0,"b":0}')]

This code is working properly, I can't reproduce the error.

thank you! I don't know where the problem lies

[taaaf11]

Can you create a repo with minimal repro code? Try doing self.page.update() before first print statement. This issue shouldn't occur.

[laowus]

https://github.com/EmmetZ/ncm-downloader
I git this code，Maybe you can download and run it to see if it works

[taaaf11]

In your code, change every self.page to self.page_ in the code. This is the solution

[laowus]

In your code, change every self.page to self.page_ in the code. This is the solution

What is the difference? self.page and self.page_ I see many official examples using self. page

[taaaf11]

In your code, change every self.page to self.page_ in the code. This is the solution

What is the difference? self.page and self.page_ I see many official examples using self. page

Where?? Can you please provide me a link?

[taaaf11]

I think this is what some controls do set their page attribute themeselves. Maybe this is the reason. @FeodorFitsner

[laowus]

I think this is what some controls do set their page attribute themeselves. Maybe this is the reason. @FeodorFitsner

maybe, self.page reset the original

[taaaf11]

maybe, self.page reset the original

maybe

[laowus]

maybe, self.page reset the original

maybe

The problem is not with the self.page ，

flet-dev/examples#104

i read link then resolve it.

thank you very much!

[taaaf11]

thank you very much!

No problem. Now, close the issue