Detect Hardware Volume Button Clicks When Screen Is Off
<p>I've written an Andoid app that uses the hardware Volume buttons for another purpose. </p>

<p>It works fine if the app is running and visible, but when I turn the screen off or let it time out, the button clicks don't get into my handlers.</p>

<p>Does anyone know if there is a way to detect these button clicks when the screen is off?</p>
