kivy - How to create simple Kivy app (form with field name)

Question

How to create simple Kivy app?

If user type text into field "Name" using keyboard like on android phone, this name is display

I need this to learn

Answer 1

这是我能想到的一个简单的例子。

这是 KVLANG 代码。

<LblTxt@BoxLayout>:
    orientation: 'horizontal'      
    lblTxtIn: 'default'
    theTxt: iAmTxt
    Label:
        text: root.lblTxtIn
    TextInput:
        id: iAmTxt  
        text: 'txt'        

<MyLayout@BoxLayout>:  
    orientation: 'vertical'

    LblTxt:   
        id: lt0
        lblTxtIn: 'LblTxtInput0'

    LblTxt:   
        id: lt1
        lblTxtIn: 'LblTxtInput1'

    LblTxt:   
        id: lt2
        lblTxtIn: 'LblTxtInput2'


    Button:
        text: 'print LblTxtInput [0, 1, 2]'
        on_release: print lt0.theTxt.text, lt1.theTxt.text, lt2.theTxt.text

MyLayout

这是Python代码。

import kivy
kivy.require('1.8.0') # replace with your current kivy version !

from kivy.app import App
from kivy.lang import Builder
from kivy.config import Config
from kivy.core.window import Window

Window.size = (400,130)

from kivy.uix.boxlayout import BoxLayout

class LblTxt(BoxLayout):
    from kivy.properties import ObjectProperty
    theTxt = ObjectProperty(None)

class MyApp(App):

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

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

这是运行截图。当“print LblTxtInput [0, 1, 2]”按钮被释放时，它将打印 abc 到命令行。

我希望这能够帮到你。