将类中的文本输入打印到另一个类中

Question

我需要一种方法，一个有一个按钮的类（转到高级选项），在发布弹出窗口打开（有自己的类）里面有texet输入和一个按钮，无论用户输入我需要的是什么单击（写入按钮）将其发送回第一个类（将打印texet输入值）

*********** python文件***********

from kivy.app import App   
from kivy.lang import Builder   
from kivy.uix.boxlayout import BoxLayout

class btn_(BoxLayout):
    pass


class Var():
    def PP_(self):
        xx = self.textinput1.text
        print (xx)

class Editor(App):
    zozo = Var()
    def build(self):
        return btn_()

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

**** KV文件*********

#:import Factory kivy.factory.Factory  
<btn_>:
    Button:
        text: "Open PopUp"
        on_release: Factory.Popup().open() 
<Popup>:
    textinput1: textinput1
    BoxLayout:
        TextInput:
            id: textinput1
            hint_text: "Write something"
        Button:
            text: "Write"
            on_release: app.zozo.PP_()

Answer 1

将TextInput.text从kv文件中的类规则<Popup>:传递到Python代码中的类Var()的解决方案如下：

main.py

from kivy.app import App
from kivy.uix.boxlayout import BoxLayout


class btn_(BoxLayout):
     pass


class Var():

    def PP_(self, txt):
        print(txt)


class Editor(App):
    zozo = Var()

    def build(self):
        return btn_()

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

editor.kv

#:import Factory kivy.factory.Factory

<btn_>:
    Button:
        text: "Open PopUp"
        on_release: Factory.Popup().open()

<Popup>:
    BoxLayout:
        TextInput:
            id: textinput1
            hint_text: "Write something"
        Button:
            text: "Write"
            on_release: app.zozo.PP_(textinput1.text)