Adding multiplication and division to the units of measurement types in Foundation.
A UIScrollView subclass that intelligently handles multiple child scroll views and does not interfere with UIKitʼs cell reuse functionality.
A UIButton subclass that works with for non-rectangular button shapes.
A custom UICollectionViewFlowLayout to support parallax scrolling in cells. Check out the accompanying blog post for more info.
Demo project: Animating the drawing of a CGPath with CAShapeLayer.strokeEnd