kivyMDDemo.py 文件源码

def build(self):
        main_widget = Builder.load_string(main_widget_kv)
        # self.theme_cls.theme_style = 'Dark'

        main_widget.ids.text_field_error.bind(
            on_text_validate=self.set_error_message,
            on_focus=self.set_error_message)
        self.bottom_navigation_remove_mobile(main_widget)
        return main_widget