I have used an Android application recently that has an interesting UI pattern in it. I have made two screenshots to show you what I'm talking about:
Initial State (look at the blue rectangle on the right of the screen):
After clicking on that blue rectangle, it slides smoothly to the left, which results in the following screen:
My question is simple, how do you think this could be achieved? Also, what's the name of this pattern? A sliding pane?