如何在recycleview中获取kivymd列表的文本值？

from kivy.lang import Builder
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.recycleview import RecycleView
from kivy.properties import StringProperty
from kivymd.app import MDApp
from kivymd.uix.list import OneLineListItem

# 定义KivyMD的列表项类
class ListItem(OneLineListItem):
    text = StringProperty()

# 定义自定义的RecycleView类
class CustomRecycleView(RecycleView):
    def __init__(self, **kwargs):
        super(CustomRecycleView, self).__init__(**kwargs)
        self.data = [{'text': 'Item 1'}, {'text': 'Item 2'}, {'text': 'Item 3'}]

# 定义自定义的RecycleViewAdapter类
class CustomRecycleViewAdapter(RecycleView.Adapter):
    def __init__(self, **kwargs):
        super(CustomRecycleViewAdapter, self).__init__(**kwargs)

    def on_bind(self, instance, data):
        for index, item in enumerate(data):
            # 获取kivymd列表的文本值
            text_value = item['text']
            # 创建KivyMD的列表项，并将文本值赋给它
            item_view = ListItem(text=text_value)
            # 将列表项添加到RecycleView中
            self.parent.add_widget(item_view)

# 创建主应用程序类
class MyApp(MDApp):
    def build(self):
        # 加载KivyMD的布局文件
        kv = Builder.load_string('''
BoxLayout:
    orientation: 'vertical'
    CustomRecycleView:
        viewclass: 'ListItem'
        CustomRecycleViewAdapter:
            viewclass: 'ListItem'
''')
        return kv

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