iOS8-Sampler is a collection of focused code examples for technologies introduced with iOS 8. The application demonstrates audio distortion and delay through AVAudioEngine, along with built-in and custom Core Image filters. Graphics samples cover Metal rendering, uniform streaming, and SceneKit content. Device and privacy examples explore HealthKit, Touch ID, touch-radius data, altitude sensing, and step counting. Interface demonstrations include blur and vibrancy effects, WKWebView, UIAlertController, interactive notifications, popovers, and table row actions. The repository also shows AVKit playback, image histograms, barcode generation, and newly available fonts. ...