page.width and page.height not working on apk

[Jorch98]

Duplicate Check

• I have searched the opened issues and there are no duplicates

Describe the bug

page.width and page.height return 0 when the app is build as an apk and run on an android device. Meanwhile on Windows the app runs fine.

Code sample

Code

import flet as ft


def main(page: ft.Page):
    dimensions_text = ft.Container(ft.Text(f"Dimensions: {page.width} : {page.height}", text_align="center"), height= 200, width = 200, alignment=ft.alignment.center)
    page.add(dimensions_text)
    page.update()


ft.app(main)

To reproduce

Run the code on Windows and it will work. Build the apk with flet 0.25.2 and it will fail at displaying the page width and height correctly. The command I am using to build the apk is just flet build apk <app_name>. Am I missing something or is it just a bug?

Expected behavior

No response

Screenshots / Videos

Captures

Android

WhatsApp.Video.2025-01-09.at.17.23.14.mp4

Windows

Operating System

Windows

Operating system details

Windows 11 and Android 14

Flet version

0.25.2

Regression

I'm not sure / I don't know

Suggestions

No response

Logs

Logs

[Paste your logs here]

Additional details

No response

[FeodorFitsner]

Use page.window.width and page.window.height.

[Jorch98]

Same issue, but with different values.
Windows:

Android:

[FeodorFitsner]

OK, will be looking into that.

[Jorch98]

I run the build with --verbose now to see the extended output and now I can see a warning.
Warning: SDK processing. This version only understands SDK XML versions up to 3 but an SDK XML file of version 4 was encountered. This can happen if you use versions of Android Studio and the command-line tools that were released at different times.
Probably is not related with this issue, as everything else is working fine and I get the apk, but just so you can have all the info.

[yucel685]

App crashes when using page.width and page.height

flet version=0.26.0

It was working on version 0.24.1

[yucel685]

page.width and page.height work when you first open the mobile app. Sometimes it works when the application is opened and closed, sometimes it gives errors such as page.width = 0.0, page.height = 0.0.