ParticlesDrawable
Draws random flying particles in space forming constellations
BubbleAnimationLayout
You don’t want your apps look and feel boring, do you? Add some bubbles!
DirectSelectAndroid
Selection widget with an ethereal, full-screen modal popup displaying the available choices
AndroidTransition
Allows the easy creation of animated transition effects when the state of Android UI
ActivityOptionsICS
The lib can make the ActivityOptions animations use in Android api3.1+