AndroidService, icon and text on notification bar

[Bonny]

Hello...

I try to make service to run in background. It works as should but I can't find way to change text and icon in notification panel. I want to show status here (OK / Alarm) and maybe even to change icon on notification bar.

I use kivy for job.

This is main.py:

from kivy.app import App
from kivy.uix.label import Label


class MyApp(App):
    def build(self):
        from android import AndroidService
        self.service = AndroidService('MyTitle', 'Mystate')
        self.service.start('Param to pass')
        return Label(text='Hello world')


if __name__ == '__main__':

    MyApp().run()

And this is service routine (main.py) in subfolder service.

import os
import time

print ("starting parameters: ",os.getenv('PYTHON_SERVICE_ARGUMENT'))
while True:
    print (time.time())
    time.sleep(10)

And in attached picture I mark what I mean to change.  Changes should be made from service routine but just can't find the way.