Remove Activity as Default Launcher

Question

I set my activity as a default launcher to intercept home button clicks like so:

Answer 1

You cannot override the behavior of the home key to suit your application; this is a design decision by Google, to ensure the user can always return to a static location. There may be some ways around this (if they still exist) but they are unintended bugs which an application should not rely on.

The short answer: you can have any key except the home key.