Run the application in background

I am trying to build android app using kivy. How I can hide my app but still keep it running in the background like a deamon?

from kivy.config import Config
Config.set('graphics', 'fullscreen', 'fake')

from kivy.app import App
from kivy.uix.button import Button

class MyApp(App):
    def build(self):
        button = Button(text="Exit", size_hint=(None, None))
        button.bind(on_press=exit)
        return button

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