GPIO button to launch Kodi from EmulationStation?

[megapitch]

I use Kodi often, and I control it with my phone. I don't always have a keyboard or gamepad handy to launch Kodi, though, so I would like to setup a GPIO button to launch Kodi from within EmulationStation.

I've modified my case to include a button. Currently it's used as an ON/OFF switch, but I'd eventually like to have it launch Kodi when the button is long-pressed. I've written a script to test this, but the trouble is I can't get it to launch Kodi when EmulationStation is running. If I run it from the commandline or desktop, it works fine. Is there a specific method to run Kodi that plays nice with EmulationStation? Something about runcommand, maybe? I'm a little out of my depth here..

Here is the basic version of my script:

import gpiozero 
import subprocess

def callback(*args):    
    subprocess.call(["kodi"])

if __name__ == '__main__':
    btn = gpiozero.Button(3)
    btn.when_released = callback
    while True:
        pass

Currently it runs at boot from /etc/rc.local like so:

sudo -u pi python3 /home/pi/kodi.py &

Not sure what else to include, but happy to provide any additional info.

[mitu]

Try creating a script that shuts down gracefully EmulationStation before launching Kodi and call that script in your GPIO input handler.

[megapitch]

Thanks. As soon as I posted here, I found this topic and with a bit of modification I was able to get it working. :)