如何在kivy中创建从文本文件中抓取数据的更新列表

from kivy.app import App
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.button import Button
from kivy.uix.listview import ListView
from kivy.adapters.listadapter import ListAdapter

class MyApp(App):
    def build(self):
        layout = BoxLayout(orientation='vertical')
        
        # 创建列表控件
        list_view = ListView(item_strings=[], adapter=ListAdapter(data=[], cls=Button))
        layout.add_widget(list_view)
        
        # 创建更新按钮
        update_button = Button(text='更新列表')
        update_button.bind(on_release=self.update_list)
        layout.add_widget(update_button)
        
        return layout
    
    def update_list(self, instance):
        # 从文本文件中抓取数据并更新列表控件
        with open('data.txt', 'r') as file:
            data = file.readlines()
        
        list_view = self.root.children[0]
        list_view.adapter.data = data
        list_view._trigger_reset_populate()
        
if __name__ == '__main__':
    MyApp().run()