So in order to be able to get the properties of each checkbox and the text input you can assign ObjectProperties to the widgets, and you can link them to your test.py file.

修改后的来源:

from kivy.uix.screenmanager import Screen
from kivy.app import App
from kivy.lang import Builder
from kivy.core.window import Window
from kivy.properties import ObjectProperty

Window.size = (600, 325)

class UserGroup(Screen):
    male = ObjectProperty(None)
    female = ObjectProperty(None)
    age = ObjectProperty(None)
    
    def insert_data(self):
        if self.male.active:
            print('Male')
        elif self.female.active:
            print('Female')
        else:
            print('No gender selected')
        print(self.age.text)


class FactUserGroup(App):

    def build(self):
        self.root = Builder.load_file('test.kv')
        return self.root


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

在 .py 文件中，您可以找到 ObjectProperty 的新导入.您还可以看到，在 UserGroup 中定义了三个新属性来与视图交互，并且在 UserGroup.insert_data 中的修改非常简单.

In the .py file you can find a new import of ObjectProperty. Also you can see that three new properties were defined in UserGroup to interact with the view, and the modifications in UserGroup.insert_data are straightforward.

<CustomLabel@Label>:
    text_size: self.size
    valign: "middle"
    padding_x: 5

<SingleLineTextInput@TextInput>:
    multiline: False

<GreenButton@Button>:
    background_color: 1, 1, 1, 1
    size_hint_y: None
    height: self.parent.height * 0.120

UserGroup

    male: chk_male
    female: chk_female
    age: txt_age

    GridLayout:
        cols: 2
        padding : 30,30
        spacing: 20, 20
        row_default_height: '30dp'

        Label:
            text: 'Male'
            text_size: self.size
            valign: 'middle'

        CheckBox:
            group: 'check'
            id : chk_male

        Label:
            text: 'Female'
            text_size: self.size
            valign: 'middle'

        CheckBox:
            group: 'check'
            id: chk_female

        CustomLabel:
            text: 'age'
            text_size: self.size
            valign: 'middle'

        SingleLineTextInput:
            id: txt_age


        GreenButton:
            text: 'Ok'
            on_press: root.insert_data()


        GreenButton:
            text: 'Cancel'
            on_press: app.stop()

在 .kv 文件中，两个复选框的 id 和文本输入被重命名为 chk_male、chk_female 和 txt_age 分别.

In the .kv file the ids of the two checkboxes and the text input are renamed to chk_male, chk_female and txt_age respectively.

您还可以看到，对象属性链接是在 UserGroup 部分的开头定义的.

Also you can see that the object property links are defined at the beginning of the UserGroup section.

希望它有意义并符合您的要求.

Hope it makes sense and match your requirements.

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