Customizing the Action Bar[This post is by Nick Butcher, an Android engineer who notices small imperfections, and they annoy him. — Tim Bray] Since the introduction of the Action Bar design pattern, many applications have adopted it as a way to provide easy access to common actions. In Android 3.0 (or Honeycomb to its friends) this pattern has been baked in as the default navigation paradigm and extended to take advantage
