Setting kivy window size not working

Question

I follwed this stackoverflow question, but neither alternatives worked.

This is my code:

from kivy.app import App
from kivy.uix.label import Label
from kivy.core.window import Window

class MyApp(App):
    def build(self):
        return Label(text='text')

if __name__ == '__main__':
    Window.size = (1366, 768)
    MyApp().run()

Sometimes the size works, Kivy creates a screen with size 800x600 then changes it to 1366x768. And sometimes Kivy creates a screen with size 800x600 then changes it to 1366x768, but then back to 800x600.

And if I change my code to:

from kivy.app import App
from kivy.uix.label import Label
from kivy.core.window import Window

from kivy.config import Config
Config.set('graphics', 'width', '200')
Config.set('graphics', 'height', '200')

class MyApp(App):
    def build(self):
        return Label(text='text')

if __name__ == '__main__':
    MyApp().run()

With this code, nothing happens on my screen. I'm using Kivy v1.9.2-dev0. What I should do to fix it?

Answer 1

Put the Config settings before all the other imports - it's too late after importing Window, as the config has already been accessed to determine its initial size and your new settings are ignored.

Answer 2

Make your window non-resizable

from kivy.config import Config
Config.set('graphics','resizable',0)

set the window size

from kivy.core.window import Window
Window.size = (600, 500)

see example at https://kivyapps.wordpress.com/video-streaming-using-kivy-and-python/