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An Xcode playground showcasing the new features in Swift 4.0.

A UIButton subclass that works with for non-rectangular button shapes.

An Xcode playground demonstrating the new features in in Swift 4.2.

A UIScrollView subclass that intelligently handles multiple child scroll views and does not interfere with UIKitʼs cell reuse functionality.

Demo project: Animating the drawing of a CGPath with CAShapeLayer.strokeEnd

Observe how different SwiftUI container views affect state and lifecycle events (onAppear, onDisappear).

A UISlider subclass that adds variable scrubbing speeds (as seen in the Music app on iOS).

A custom UICollectionViewFlowLayout to support parallax scrolling in cells. Check out the accompanying blog post for more info.

A tool for learning how the SwiftUI layout system works, and for debugging your own layout code.

Adding multiplication and division to the units of measurement types in Foundation.

An array that keeps its elements sorted according to a given sort predicate.

A very simple implementation of a scroll view on iOS. Not meant for production, just for learning purposes. Please check out the accompanying blog post.

A simple UIView wrapper for CAGradientLayer. For the times when it's more convenient to use a view instead of a CALayer.

Check an app bundle's code signing and sandboxing state to NSBundle.

Embedded Swift on the Raspberry Pi Pico without the Pico C/C++ SDK

Automatically extract translatable strings from Xcode storyboards and update .strings files.

A demo iOS app to illustrate hit testing with CGPathCreateCopyByStrokingPath()

An iOS test app for testing silent push notifications and background fetching.

Embedded Swift on the Raspberry Pi Pico