While it’s quite pricey, the S-View Flip Cover for the Galaxy S 4 is a pretty cool accessory. Allowing you to see alerts, answer and reject calls, see what song is playing, and view other vital information; the flip cover helps make your smartphone just a little bit smarter. However, by default the media player integration only works with the Samsung-provided media player.
Thankfully, XDA Senior Member MohammadAG has created an Xposed module (development thread) that allows you to display metadata from the following players: the Stock Samsung Media Player, Google Play Media Player, Poweramp, and limited support for other media players that use the metachanged intent and media buttons. In addition to viewing track information, MohammadAG’s modification allows you to switch songs by swiping left or right. The mod also allows you to play and pause media playback by long pressing the display.
Naturally, you must first be rooted and have Recognized Developer rovo89‘s Xposed framework installed. However, once you have fulfilled those prerequisites, all you have to do is install the module and activate it.
Normally, MohammadAG sells this on the Play Store. However, he has made it available to XDA community members free of charge. You can head over to the application thread to get the goods. And if you would like to take a look at the source code, visit MohammadAG’s Github.