The Touch Controller framework lets you add fully customizable on-screen touch controls to your game that automatically surface as a GCController object, integrating directly with your existing Game Controller input pipeline and rendering via Metal.
• Extends Game Controller framework support to touch input so existing controller-handling code works unchanged — no new game logic required
• Provides nine anchor points, safe-area APIs, and half-screen collider shapes so controls adapt gracefully across every iPhone and iPad screen size
• Controls act as both input and output — icons update contextually, controls hide when irrelevant, and on-screen buttons can replace overlay UIs entirely
Liquid Glass is Apple's new material and visual design language introduced in iOS 27, bringing translucent, refractive glass-like surfaces to system and custom UI elements. It replaces the frosted vibrancy aesthetic with a more dynamic, depth-aware material that responds to content beneath it.
iOS 27 brings a sweeping set of SwiftUI enhancements including Liquid Glass design adoption, new toolbar visibility and overflow APIs, document architecture improvements with Observable, and resizable iPhone app support — all designed to modernize app UIs with minimal code changes.
Xcode 27 introduces a fully customizable toolbar and theme system, untitled scratch projects, coding agent integration directly in the editor, and the new Device Hub for evaluating apps across simulators and physical devices side-by-side.
In-depth guide
SwiftUI & Liquid Glass in iOS 27 →PaperKit is Apple's full-featured canvas framework — previously internal-only — now publicly available in iOS/macOS/visionOS 27. It powers the drawing and markup experience in Notes, Preview, and Freeform, giving developers access to a complete pencil, shapes, images, and text canvas with a rich data model.