保存文本输入

Question

我很难理解如何保存用户输入。我已经研究了在网上找到的其他草图，但是正在为这个概念而苦苦挣扎。以下是说明我的问题的草图。与保存文本输入有关的所有代码均在下面进行了细分。

我遇到了错误：

    AttributeError: 'CustomPopup1' object has no attribute 'save'

也就是说，如何在弹出窗口中保存文本输入？

这是我的代码：

    from kivy.config import Config
    Config.set('kivy', 'keyboard_mode', 'systemandmulti')
    from kivy.app import App
    from kivy.lang import Builder
    from kivy.uix.popup import Popup

    from kivy.storage.jsonstore import JsonStore

    theRoot = Builder.load_string('''

    <CustomPopup1>:

        size_hint: .9, .9
        auto_dismiss: False
        title: "Program 1"

        StackLayout:

            Label:
                text: "Select Start Hour"
                size_hint: .2, .2

            TextInput:
                size_hint: .2, .2
                id: p1sh1

            Label:
                text: "Select Start Minute"
                size_hint: .2, .2

            TextInput:
                size_hint: .2, .2
                id: p1sm1

            Button:
                text: "Close"
                on_press: root.dismiss()
                size_hint: .5, .25
    #--------------------------here-----------------------------------------
            Button:
                text: 'save'
                on_release: on_release: root.save(CustomPopup1)
                size_hint: .5, .25
    #----------------------------------------------------------------------

    StackLayout:
        orientation: 'lr-tb'
        padding: 10
        spacing: 5

        Button:
            text: "Open Popup"
            on_press: app.open_popup1()
            size_hint: .5,.1

    ''')

    class CustomPopup1(Popup):
        pass

    class theApp(App):

        def build(self):
            return theRoot

        def open_popup1(self):
            the_popup = CustomPopup1()
            the_popup.open()
    #-----------------------here--------------------------------------------
        def save(self, vinput):
            store = JsonStore('hello.json')
            store.put('tito', inpud=vinput)
    #-----------------------------------------------------------------------

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

谢谢您的帮助，感谢您的反馈：）