title: Is there a way to hide the system/navigation bar in Android ICS
body: <p>I'd like to extend the discussion regarding hiding of the system/navigation bar at the bottom of the screen on Android Ice Cream Sandwich (4.0 and up) tablet devices.</p>
  
  <p>There's already a thread ( <a href="https://stackoverflow.com/questions/5109988/is-there-a-way-to-hide-the-system-bar-in-android-3-0-its-an-internal-device-an">Is there a way to hide the system bar in Android 3.0? It&#39;s an internal device and I&#39;m managing navigation</a> ) about hiding the bar on Honeycomb devices.  My clients, however, will be using the newest Ice Cream Sandwich devices and are very keen on hiding the bar at the bottom the screen.  Their application is not for regular consumer use and it's very important for them to take over the whole screen to provide their experience.  How possible is it to hide this bar -- or at least, override the behaviour of all the buttons -- without rooting the devices or rewriting its firmware?</p>