To be fair the play button would work with the phone off - and it could stop the music after a few seconds as well. It's just a matter of keeping music queued up - but you could probably find something for that.
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
To be fair the play button would work with the phone off - and it could stop the music after a few seconds as well. It's just a matter of keeping music queued up - but you could probably find something for that.
For Android app development, best to check out Google's site: https://developer.android.com/training/index.html
You could have a go at following their tutorial to do a really simple app, and see how you feel about it?