Nestor Popko

ProgressLabel. Customizable progress indicator, which displays progress by filling stroked text.

PinCodeField. Customizable pin code control, written in Swift.

ModalPresentationQueue. UIViewController extension which lets you present multiple modal view controllers in a serial presentation queue.

CAEmitterLayerExample. This app shows how to create particle emitters using Core Animation's CAEmitterLayer class

NPGradientImage-Swift. UIImage extension which lets you create gradient images