Kivy: Popup Can Have Only One Widget As Content
I am having an issue with using a popup in my .kv file. I understand that a popup can only have one widget as it's content, however if I am only passing a GridLayout as a child tha
Solution 1:
Yes, it should work as you say, your code is correct.
The problem is that the loading of the .kv file is duplicated. As your App
subclass is called MainApp
, main.kv
is loaded automatically if it is in same directory (Doc: How to load kv). On the other hand, you explicitly upload the file using Builder.load_file ('main.kv')
.
You must remove the call to Builder
or rename MainApp
/main.kv
.
If you delete the call to Builder.load_file
you must create the ScreenManager
instance once the .kv is loaded. You can do something like:
classMainApp (App):defbuild(self):
sm = ScreenManager (transition = FadeTransition ())
sm.add_widget (MenuScreen (name = 'menu'))
sm.add_widget (SurveyScreen (name = 'survey'))
return sm
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