Kivy Login example

.gitignore

*.pyc

connected.kv

<Connected>:
    BoxLayout:
        orientation: 'vertical'

        Label:
            text: "You are now connected"
            font_size: 32
        Button:
            text: "Disconnect"
            font_size: 24
            on_press: root.disconnect()

connected.py

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

class Connected(Screen):
    def disconnect(self):
        self.manager.transition = SlideTransition(direction="right")
        self.manager.current = 'login'
        self.manager.get_screen('login').resetForm()

login.kv

#:include connected.kv

<Login>:
    BoxLayout
        id: login_layout
        orientation: 'vertical'
        padding: [10,50,10,50]
        spacing: 50

        Label:
            text: 'Welcome'
            font_size: 32

        BoxLayout:
            orientation: 'vertical'

            Label:
                text: 'Login'
                font_size: 18
                halign: 'left'
                text_size: root.width-20, 20

            TextInput:
                id: login
                multiline:False
                font_size: 28

        BoxLayout:
            orientation: 'vertical'
            Label:
                text: 'Password'
                halign: 'left'
                font_size: 18
                text_size: root.width-20, 20

            TextInput:
                id: password
                multiline:False
                password:True
                font_size: 28

        Button:
            text: 'Connexion'
            font_size: 24

            on_press: root.do_login(login.text, password.text)

main.py

from kivy.app import App
from kivy.properties import StringProperty
from kivy.uix.screenmanager import ScreenManager, Screen, SlideTransition
import os

from connected import Connected

class Login(Screen):
    def do_login(self, loginText, passwordText):
        app = App.get_running_app()

        app.username = loginText
        app.password = passwordText

        self.manager.transition = SlideTransition(direction="left")
        self.manager.current = 'connected'

        app.config.read(app.get_application_config())
        app.config.write()

    def resetForm(self):
        self.ids['login'].text = ""
        self.ids['password'].text = ""

class LoginApp(App):
    username = StringProperty(None)
    password = StringProperty(None)

    def build(self):
        manager = ScreenManager()

        manager.add_widget(Login(name='login'))
        manager.add_widget(Connected(name='connected'))

        return manager

    def get_application_config(self):
        if(not self.username):
            return super(LoginApp, self).get_application_config()

        conf_directory = self.user_data_dir + '/' + self.username

        if(not os.path.exists(conf_directory)):
            os.makedirs(conf_directory)

        return super(LoginApp, self).get_application_config(
            '%s/config.cfg' % (conf_directory)
        )

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

Great ... Thanks a lot

Great, super contribution, a question many as I do to take the data of the variable for example, idUser, to the connected file and put print it in that file.

there is nothing like connected module...!! please fix this

Priyanshthehacker you didnt create that connected.py file wich imports this

awsome dude thnks a lot