FButton / android-flat-button is a custom Button of Android with "Flat UI" concept. This library is very small and highly customizable.
A simple easy-to-integrate Camera Fragment for Android.
CameraFragment preview directly the camera view, and provides a easy API to capture or manage the device.
You can setup your own layout and control the camera using CameraFragment.
Pixl is a library for image manipulation with power of renderScript which is faster than other ordinary solutions, currently it includes three basic scripts, brightness, contrast, saturation.