Kivy弹出窗口在单独的线程中运行

from kivy.app import App
from kivy.uix.button import Button
from kivy.uix.popup import Popup
from kivy.clock import Clock
import threading

class MyPopup(Popup):
    def __init__(self, **kwargs):
        super(MyPopup, self).__init__(**kwargs)
        self.title = 'My Popup'

    def show_popup(self):
        # 在单独的线程中执行弹出窗口的逻辑
        threading.Thread(target=self._show_popup).start()

    def _show_popup(self):
        # 模拟耗时操作
        import time
        time.sleep(5)

        # 在主线程中显示弹出窗口
        Clock.schedule_once(lambda dt: self.open())

class MyApp(App):
    def build(self):
        button = Button(text='Show Popup')
        button.bind(on_release=lambda btn: self.show_popup())
        return button

    def show_popup(self):
        popup = MyPopup()
        popup.show_popup()

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