by Steven White (The Phase Master)
Autostarts Google Play Music upon headphones being plugged in. Pauses it upon unplug. Very simple, only 4 blocks.
If you want to, you can easily customize this for your favorite media player by changing the receiver to the MediaButtonIntentReciever for your player. It has to be specifically that receiver or otherwise I think it might not work.
(Side note: First upload! Hello World!)