Xcode's coding agents let you generate multiple SwiftUI UI variations from a single descriptive prompt, enabling rapid design exploration directly in native code. Combined with Xcode Previews, you can iterate on layouts, animations, and real content states without leaving the IDE.
• Agents produce real, compilable SwiftUI code — not throwaway mockups — so prototypes can evolve directly into production screens
• Asking for multiple named previews in one prompt lets you compare divergent design directions side-by-side instantly
• Bringing in realistic sample data via agents exposes edge cases (empty states, long text, dynamic color) before real users encounter them
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.