Android: How do I use the volume buttons to initialize an app?
<p>I'm like working on an app that will call home when I press down the volume. </p>

<p>I have a working Dial / Call method. Now I need help figuring out how to get it all encapsulated in a method that will activate when the volume key down is pressed and held. </p>

<p>Any advice would help immensely.</p>
