我在写这篇文章时得到了答案。如果有人遇到同样的问题，还是会发布 This code was supposed to change the color of the canvas of my Led object, but for some reason it doesn't. I don't get any error messages. Python代码： class Manager(ScreenManager): pass class PrincipalPage(Screen): p...

问题 How to allow Kivy to use the same pixel measurement to create Window and Screen on devices with Retina display? 描述 The pixel measurements for Window and Screen are not consistent on Apple's Retina display. The width and height of a Window are always twi...