如何在kivy中的屏幕之间发送输入？

from kivy.app import App
from kivy.uix.screenmanager import ScreenManager, Screen
from kivy.uix.button import Button
from kivy.uix.textinput import TextInput

class InputScreen(Screen):
    def __init__(self, **kwargs):
        super(InputScreen, self).__init__(**kwargs)
        self.input_text = TextInput(multiline=False)
        self.send_button = Button(text="Send", on_release=self.send_input)
        self.add_widget(self.input_text)
        self.add_widget(self.send_button)

    def send_input(self, instance):
        input_text = self.input_text.text
        # 在这里处理输入逻辑，可以将输入发送给其他屏幕或执行其他操作
        # 例如，可以通过屏幕管理器切换到其他屏幕并传递输入数据
        screen_manager = App.get_running_app().root
        output_screen = screen_manager.get_screen("output")
        output_screen.display_input(input_text)
        screen_manager.current = "output"

class OutputScreen(Screen):
    def __init__(self, **kwargs):
        super(OutputScreen, self).__init__(**kwargs)
        self.output_label = Label(text="")
        self.add_widget(self.output_label)

    def display_input(self, input_text):
        self.output_label.text = "Received input: " + input_text

class MyScreenManager(ScreenManager):
    def __init__(self, **kwargs):
        super(MyScreenManager, self).__init__(**kwargs)
        self.add_widget(InputScreen(name="input"))
        self.add_widget(OutputScreen(name="output"))

class MyApp(App):
    def build(self):
        return MyScreenManager()

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