App audio plays while Kindle Fire screen is locked

Yeah, this is a problem I had to solve about a year ago. Android's guidelines suggest you should pause your game on a DEACTIVATE event and then require user input, like a tap on a pause screen, before resuming your app. So that's what I ended up doing. I built a semi-transparent pause screen that overlays the entire screen and app, and then unpauses on the next tap. And I also had to handle resizing the pause screen when the app auto-orients.

For audio I'd originally built a sound class that listened to ACTIVATE and DEACTIVATE events and would pause themselves accordingly, but I ended up tying their pause/unpause mechanism to the app's pause resume.

Oh, and you will probably want to build a lock parameter into your pause method, so that in some situations the only code that can unpause the app is the code that passes the same lock/unlock string. Otherwise, you might find your app resuming when it wasn't suppose to.

Hope that helps. Oh, and testers with the Samsung App Store sometimes think they are designers and sometimes may reject your app because they say the pause screen should have gone away automatically. Don't listen to them. Try filing a petition explaining your app is following Android guidelines or just resubmit the app and hope for a different tester. And one of the first tests a Samsung tester does is power off and on the screen and see if your app can handle it correctly. So yeah, they are tougher than Amazon.

But warning. The worst is Google Play. If one app goofs up and inadvertently violates one of their guidelines they may just ban your entire account - nevermind that you may have a 100 other apps published through that account. And they will tell you nothing. Not the name of the app that caused the violation, or even what the violation was - just a "please read our guidelines again." And it could be something as seemingly innocuous as key word stuffing in the apps description - but you won't know what caused it. Sorry, now I'm venting a little. But if you need to publish a large number of apps consider finding a way to spread them out over multiple accounts if you can to protect yourself.