Skip to content
This repository has been archived by the owner on Apr 16, 2022. It is now read-only.


Repository files navigation


Build Status Pods Version Platforms Swift Carthage Compatible codecov


ProcessingKit is a Visual designing library for iOS & OSX. ProcessingKit written in Swift🐧 and you can write like processing.



Demo Apps

Sketch Runner Code Comparison (between Processing and ProcessingKit)


OS gif code
iOS gif code
OSX gif code


  • Swift 3.0 or later
  • iOS 10.0 or later
  • OSX 10.11 or later

If you use Swift 3.x, try ProcessingKit 0.6.0.


  1. Create custom class that inherits from ProcessingView
import ProcessingKit

class SampleView: ProcessingView {
    func setup() {
        // The setup() function is run once, when the view instantiated.
    func draw() {
        // Called directly after setup(), the draw() function continuously executes the lines of code contained inside its block until the program is stopped or noLoop() is called.
  1. Create a SampleView instance

Create programmatically

    lazy var sampleView: SampleView = {
        let sampleView = SampleView(frame: frame)
        sampleView.isUserInteractionEnabled = true // If you want to use touch events (default true)
        return sampleView

Use InterfaceBuilder

  1. Add UIView to ViewController
  2. Select UIView & Open Identity inspector
  3. Set SampleView to Custom class field
  4. Add outlet connection
 @IBOutlet weak var sampleView: SampleView!

 override func viewDidLoad() {
     sampleView.isUserInteractionEnabled = true // If you want to use touch events (default true)


Add the following to your Podfile:

  pod "ProcessingKit"

Add the following to your Cartfile:

  github "natmark/ProcessingKit"

Xcode File Template

  • ProcessingKit.xctemplate is available.
  • Use Donut(Xcode file template manager) to install.

$ donut install



ProcessingKit is available under the MIT license. See the LICENSE file for more info.