其他小部件下的Kivy小部件是可交互的，如何防止这种情况？

from kivy.app import App
from kivy.uix.button import Button
from kivy.uix.boxlayout import BoxLayout

class MyWidget(BoxLayout):
    def __init__(self, **kwargs):
        super(MyWidget, self).__init__(**kwargs)
        
        # 创建一个按钮
        button = Button(text='可交互按钮')
        self.add_widget(button)
        
        # 设置按钮为不可交互状态
        button.disabled = True

class MyApp(App):
    def build(self):
        return MyWidget()

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