from kivy.app import App
from kivy.uix.screenmanager import Screen

from kivy.lang import Builder

gui = '''
LoginScreen:

    GridLayout:
        cols: 2

        Label:
            text: 'Subject'

        Label:

        Label:
            text: '1'

        SingleLineTextInput:

        Label:
            text: '2'

        SingleLineTextInput:

        Label:
            text: '3'

        SingleLineTextInput:

        Label:
            text: '4'

        SingleLineTextInput:

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

        GreenButton:
            text: 'Run'


<SingleLineTextInput@TextInput>:
    multiline: False


<GreenButton@Button>:
    background_color: 0, 1, 0, 1
    size_hint_y: None
    height: self.parent.height * 0.111
'''


class LoginScreen(Screen):
    pass


class SimpleKivy(App):

    def build(self):
        return Builder.load_string(gui)


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