慕尼黑5688855
我遇到了同样的问题，您可以使用线程来实现。我不确定您要完成什么，但是假设您想在单击按钮时加载某些内容。加载时你想显示一个弹出窗口说“正在加载”。这是一个简单的示例程序，可以让您执行此操作。main.pyimport threadingimport timefrom kivy.app import Appfrom kivy.uix.popup import Popupfrom kivy.uix.label import Labelclass ExampleApp(App): def show_popup(self): # Create and open a popup self.loading_pop = Popup(title='Please wait', content=Label(text='Loading...'), size_hint=(.8, .5), auto_dismiss=False) self.loading_pop.open() def process_btn_click(self): self.show_popup() # Open the popup # Start a thread, this allows you to display the popup while # running some long task my_thread = threading.Thread(target=self.some_long_task) my_thread.start() def some_long_task(self): current_time = time.time() while current_time + 3 > time.time(): # 3 seconds time.sleep(1) # When the task is done, let the popup display "Done!" self.loading_pop.content.text = 'Done!' # Also let the user click out of the popup now self.loading_pop.auto_dismiss = Trueif __name__ == '__main__': ExampleApp().run()例子.kvScreen: Button: text: 'Click me' pos_hint: {'center_x': .5, 'center_y': .5} size_hint: .3, .2 on_release: app.process_btn_click()希望这回答了你的问题！