__init__.py 文件源码

def remove_widget(self, widget):
        if widget is self.side_panel:
            self._side_panel.remove_widget(widget)
            self.side_panel = None
        elif widget is self.main_panel:
            self._main_panel.remove_widget(widget)
            self.main_panel = None
        else:
            raise NavigationDrawerException(
                'Widget is neither the side or main panel, can\'t remove it.')