Swiftui Whats New 27
superagents-lab/xcode27-skills/swiftui-whats-new-27by superagents-lab6f9ff8d5ad6000491cb0f483a776b7062e41cd97No licenseListed Oct 9, 2026Updated Oct 9, 2026
New SwiftUI APIs, behaviors, and deprecations introduced in the 2027 OS releases (iOS 27, macOS 27, watchOS 27, tvOS 27, visionOS 27). Use when a SwiftUI view using @State fails to compile with "used before being initialized", "invalid redeclaration of synthesized property", or "extraneous argument label" errors after an SDK update (@State migrated from a property wrapper to a macro in SDK 27; the obvious fix of reordering init assignments is WRONG and produces incorrect runtime behavior; you MUST consult this skill's references before answering); when @ViewBuilder or @ContentBuilder code hits ambiguous overloads in overlay/background or type-check performance regressions after an SDK update; when the user asks what's new in SwiftUI (generally, or for a specific 2027 platform); when adding drag-to-reorder to any container (List, LazyVStack, LazyVGrid, stacks, or custom layouts) via reorderable()/reorderContainer, including the drag-and-drop that integrates with it (dragContainer, dropDestination), or combinin
Only the file list is public. File contents are available once the skill is installed in a workspace.
| Path | Size | Type |
|---|---|---|
| references/async-image.md | 4 KB | text/markdown |
| references/content-builder.md | 15.9 KB | text/markdown |
| references/deprecations.md | 1.1 KB | text/markdown |
| references/document-based-apps.md | 24.6 KB | text/markdown |
| references/item-binding.md | 5.2 KB | text/markdown |
| references/reorderable.md | 9.3 KB | text/markdown |
| references/state-macro.md | 3.1 KB | text/markdown |
| references/swipe-actions.md | 3.3 KB | text/markdown |
| references/toolbar.md | 6.8 KB | text/markdown |
| SKILL.md | 7.6 KB | text/markdown |
Source and attribution
Source:superagents-lab/xcode27-skillsinswiftui-whats-new-27at commit6f9ff8d
License: No license
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