AnimationUtils Utility class for animations containing Material interpolators. 
ArgbEvaluatorCompat This evaluator can be used to perform type interpolation between integer values that represent ARGB colors. 
ChildrenAlphaProperty A Property for the alpha of a ViewGroup's children. 
DrawableAlphaProperty Compat property for getAlpha() and setAlpha(int) for pre-K devices. 
ImageMatrixProperty Property wrapper for getImageMatrix() and setImageMatrix(Matrix)
MatrixEvaluator Type evaluator for Matrix interpolation. 
MotionSpec A motion spec contains multiple named motion timings
MotionTiming A representation of timing for an animation. 
Positioning A representation of the positioning of a view relative to another.