Hi!, I see that a lot of apps (important apps) has an interface with a "top menu" with 2 or 3 buttons, like "new" or "search", and this menu is on every screen of the app.
Examples are: Facebook, Google Drive, Dropbox, GTasks, Blogger, Google Reader, etc.
My question is simple: How do they that "top menu"?
It's on java? In that case, which is the view that I must use?