How to open my Android app on a long press of home, back or recent apps button?

Question

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.

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...

Answer 1

I don't think your users will be able to do this without rooting. I found this thread which is worth reading:

http://forums.androidcentral.com/samsung-galaxy-s3/183113-button-remapping.html

alternatively they mentioned Go Launcher app