如何在MDDialog中添加MDList(OneLineListItem)

from kivymd.app import MDApp
from kivymd.uix.dialog import MDDialog
from kivymd.uix.list import MDList, OneLineListItem

def show_dialog(self):
    # 创建MDList对象
    list_view = MDList()

    # 创建OneLineListItem对象，并添加到MDList中
    item1 = OneLineListItem(text="Item 1")
    list_view.add_widget(item1)

    item2 = OneLineListItem(text="Item 2")
    list_view.add_widget(item2)

    # 创建MDDialog对象，并将MDList作为其内容
    dialog = MDDialog(title="Dialog Title", content=list_view)
    dialog.open()

class MyApp(MDApp):
    def build(self):
        # 创建主界面
        ...

    def on_button_click(self):
        # 按钮点击事件处理函数
        self.show_dialog()

    def show_dialog(self):
        # 创建MDList和MDDialog，并显示
        ...