First congrats for your work and your sharing. It's revolutionary in it's design!
After playing a bit I can see room for improvement:
1 enlarge the fonts
2 pressing play 2nd time pauses but the icon doesn't change
3 add volume control
4 add exit button
5 add stop button
6 add a screen off option to save power
In the minimised view:
7 the sliding effect seems reversed because the slider is not moving, consider a wheel effect (with or without slider)
8 shuffling through directories is not very responsive, I found the best response when swiping my fingernail on the top or the bottom of the central slider.
9 the directories names are hidden by the finger, maybe move them above the slider
10 enhance Dpad functionality : right/left are ok, up/down should switch dirs (now they behave like right/left) and action button should play/pause (now it's not responsive)
This is it for now
I wouldn't have bothered writing so much if I didn't think it has the potential to become a leading app, so keep up (I also think you are going to get more involved than you thought
Big thanks !
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