In the beginning the Android Nav bar consisted of the home button, back button and menu button. As Android matured so did the hardware. Eventually phones could handle keeping several apps available in the background. Pretty soon Android replaced the menu button with the recent apps button...
The Galaxy S8 does away with the hardware keys featured on previous Galaxy S devices. It instead comes with all new software keys including an always on home button with haptic feedback. You have always been able to reorder your software buttons on the Galaxy S8. Now thanks to the development...
One of the best features of some Roms is the ability to rearrange and customize your navbar. Being able to add some flair to your navbar makes it less boring. With the "Navbar Apps" app you no longer neet root or roms to customize your navbar. With this app you can add which ever background...
As far as the UI is concerned the Android N Developer Previews have shown us that we will not get a major design overhaul. There is however one major change to the UI design that we expect to see. A new refreshed Nav Bar is expected to arrive with the first official build of Android N. Leaked...