How to open my Android app on a long press of home, back or recent apps button?
<p>I want my users to be able to launch my app by long pressing back button, recent apps button or home button. Or even long press on volume up/down or power button.... something which would allow users to execute my app without touching a screen icon.</p>

<p>I offer similar voice solution to Google Now, which btw. opens after a long press on home button. Any way I can do the same? I get this question from my users almost daily...</p>
