Ricardo Állan Costa

The error from IDE solved, but I'm not understand at all. With your code, it will call the ResizeCallback from my object or I'll need to made it static before?

It's solved? Because I'm already with this same problem, a simple way to cause the bug: ``` from kivymd.app import MDApp from kivy.lang import Builder kv = """ MDBoxLayout: MDNavigationRail:...

Hello! I can't call a pull request, but I solved the issue. I changed to it: 1 - Add a object property named `_width` with default value 0; 2 -...