Do not download if you are not a developer! This app showcase the functionality of a library and does not offer useful features by itself.
Demo app for the Transition library, this library allows the easy creation of animated transition effects when the state of Android UI has changed. Unlike animations, the transition effect reacts in accordance with user finger input (think sliding a Drawer out with finger drag instead of pressing the ActionBarDrawerToggle).
The open source project can be found at https://github.com/kaichunlin/android-transition