iphone-duolisted

Adapt, audit, or build iOS apps (Swift, UIKit + SwiftUI) for iPhone Duo — Apple's foldable iPhone (Sept 2026, iOS 27.1 SDK, Xcode 27.1). Covers outer/inner display size classes, vertical toolbars and tab bars, reserved regions (hinge, cameras), ArrangementView / UIArrangementViewController, hinge angle (onHingeChange), multiple scenes and scene accessories, dual front cameras, Split View multitasking, Device Hub poses, adaptive layout for continuously changing window sizes (ViewThatFits, AnyLayout, NavigationSplitView, adaptive grids, state continuity), and a grep-based readiness audit. Use whenever the user mentions iPhone Duo, foldable/folding iPhone, fold, hinge, dual display, inner or outer display, vertical bars, reserved regions, arrangement views, resizable or adaptive iPhone layouts, or asks whether an app is ready for iPhone Duo — even without the words "iPhone Duo". Critical because iPhone Duo APIs are newer than the model's training data.
anatoliykant/iphone-duo-plugin · ★ 0 · AI & Automation · score 72

Install: claude install-skill anatoliykant/iphone-duo-plugin

# iPhone Duo (iOS 27.1) — adapt Swift apps to the foldable iPhone ## Why this skill exists iPhone Duo was announced 2026-09-09 and ships 2026-10-23 on iOS 27.1 — after the model's training data. Without `references/` you will hallucinate API names (`reservedRegions`, `ArrangementView`, `onHingeChange`, `axisBehavior`, `AVCaptureDeviceDirectionCoordinator` are real; many plausible neighbors are not). **Trust the references over memory.** Every new symbol carries a status: **VERBATIM** (copied from an Apple Code section or developer article), **PROSE** (named in Apple's text but never written as code), **CAPTION** (YouTube auto-captions only — never use; Apple's own transcripts disagree with all of them), **EXISTING(iOS xx)** (pre-Duo API), **SDK(27.1 β1)** (found in the shipping iOS 27.1 SDK with an availability annotation). Research date 2026-09-10; **SDK-verified 2026-09-21** against the iOS 27.1 SDK in Xcode 27.1 beta 1. Every Duo symbol in the references now carries a real annotation — the earlier "no availability annotation exists yet" caveat is gone. One capability the HIG names is still missing from the SDK (collapsing an overlay arrangement's secondary view); the references say so where it matters. ## Quick facts - Two displays. Outer 5.4": compact width (regular height portrait, compact × compact landscape) — behaves like other iPhones. Inner 7.6": **regular × regular** — first time on an iPhone — and it **does not honor `supportedInterfaceOrientations`**. - Poin