Google's Android developers have delivered a great video all about the new Navigation Drawer
We've talked before about how the Android team is serious about design. They want Android, and the great apps that developers create, to not only work well, but to look good. We noticed this at Google I/O in May, that there was a new (and long-awaited) focus on building applications that look like they belong. Apps with a consistent and elegant user interface, versus the jumble of different design styles and choices of the past.
It's a big undertaking. You have to account for different screen sizes, devices with or without the recommended button layout, and most of all you need to find a fluid look and feel that works well for the end user. Nobody likes an app that is difficult to use. Google tried to get everyone on-board with the action bar method, and it's a great solution for some things. But sometimes, you need to get dirty and have a list of user choices and options. That's where the new Navigation Drawer concept comes into play.
Grab your phone. Open the YouTube app or Google Play Books app. Swipe your finger to the right on the main screen (view). That's the new Navigation Drawer at work. Google Play Books could probably get away with just an action bar and overflow area (those three dots in the upper right) but the YouTube app has plenty of choices and options that would otherwise be buried three levels deep. The Navigation Drawer seems like a perfect way to present them all to the users -- you and me.
A lot of thought went into this, and luckily the Android developers are willing to share their thoughts about it all. Join Roman Nurik, Jens Nagel and Rich Fulcher after the break for 47 minutes of great information about why, where and when you would want to use the Navigation Drawer. Even if you're never going to design an Android app, it's a great watch and really drives the idea home.
Source: Android Developers YouTube