Cacao

Pure Swift Cross-platform UIKit (Cocoa Touch) implementation (Supports Linux)

Installation

OS X

brew install cairo sdl2 freetype fontconfig && carthage bootstrap fuse Xcode to build ... or swift build -Xlinker -L/usr/local/lib if SDL2 installed via homebrew to that location

Ubuntu

sudo apt-get install libcairo-dev libsdl2-dev swift build

Screenshots

Run PaintCode StyleKits in Linux (after removing NSObject base class)

Layout views according to a UIViewContentMode

Create applications that run in the native Window Manager