Custom of loading buttons in Swift.
Awesome library to customize corners of UIView and UIButton. Now you can customize each corner differently.
Super customizable Segmented Control for iOS. Following examples can give you idea how it can be customized.
A small and flexible (well documented) UIButton subclass with animated loading progress, and completion animation.
LiquidFloatingActionButton is floating action button component of material design in liquid state, inspired by Material In a Liquid State.