BoxLayout size_hint_x ignored

The second button fills the available space, it will also do the same when it is the only children. Other layouts behave as expected in this case, they fill the space according to the size_hint value.

from kivy.app import App
from kivy.lang import Builder
from kivy.uix.boxlayout import BoxLayout

kv = """
<Test>:
    Button:
        size_hint_x: None
        width: dp(80)
    Button:
        size_hint_x: 0.5
"""

Builder.load_string(kv)


class Test(BoxLayout):
    pass


class TestApp(App):
    def build(self):
        return Test()

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

[dessant]

@werton, i’ve wrongly assumed things and i’ll bear the consequences until my last breath 😉, thanks for standing up, it’s important to challenge each other’s assumptions.

[werton]

Hooray, I don’t have to write their own implementation of the BoxLayout. thanks for the discussion 😃