https://bleepingswift.com/blog Learn Swift and SwiftUI with concise tutorials and examples. en-us undefined (Mick MacCallum) undefined (Mick MacCallum) Sun, 20 Sep 2026 00:00:00 GMT https://bleepingswift.com/blog/arrangementview-swiftui-iphone-duo https://bleepingswift.com/blog/arrangementview-swiftui-iphone-duo ArrangementView is a new iOS 27.1 container that lays out a primary and secondary view side by side or layered, and rearranges them around the iPhone Duo fold. Here's how the split and overlay styles work, how to size them, and when not to use one. Sun, 20 Sep 2026 00:00:00 GMT undefined (Mick MacCallum) iPhone DuoSwiftUILayoutiOS 27 https://bleepingswift.com/blog/cameracaptureaccessory-iphone-duo-teleprompter https://bleepingswift.com/blog/cameracaptureaccessory-iphone-duo-teleprompter When iPhone Duo is open, its outer display faces the same way as the rear camera. CameraCaptureAccessory lets your app put content there while it records. Here's how to build a scrolling teleprompter with it in SwiftUI and UIKit. Fri, 25 Sep 2026 00:00:00 GMT undefined (Mick MacCallum) iPhone DuoSwiftUICameraiOS 27 https://bleepingswift.com/blog/iphone-duo-camera-direction-coordinator https://bleepingswift.com/blog/iphone-duo-camera-direction-coordinator On iPhone Duo, which way a camera points depends on which display your app is on. Here's how the virtual front camera keeps existing apps working, and how AVCaptureDeviceDirectionCoordinator tells you which cameras face the person using your app. Tue, 15 Sep 2026 00:00:00 GMT undefined (Mick MacCallum) iPhone DuoAVFoundationCameraiOS 27 https://bleepingswift.com/blog/iphone-duo-vertical-toolbars-swiftui https://bleepingswift.com/blog/iphone-duo-vertical-toolbars-swiftui On iPhone Duo, toolbars and tab bars move to the side of the screen. Learn when that happens, how to make sure the right items survive, and how to use axisBehavior, visibility priority, and compression behavior in SwiftUI. Sat, 19 Sep 2026 00:00:00 GMT undefined (Mick MacCallum) iPhone DuoSwiftUIToolbarNavigationiOS 27 https://bleepingswift.com/blog/onhingechange-hinge-angle-swiftui https://bleepingswift.com/blog/onhingechange-hinge-angle-swiftui iOS 27.1 lets you read iPhone Duo's hinge angle and fold status with onHingeChange in SwiftUI and UIHingeInteraction in UIKit. Here's how the APIs work, why they're for interactive effects rather than layout, and a fold-to-scrub example. Thu, 24 Sep 2026 00:00:00 GMT undefined (Mick MacCallum) iPhone DuoSwiftUIUIKitiOS 27 https://bleepingswift.com/blog/prepare-app-for-iphone-duo https://bleepingswift.com/blog/prepare-app-for-iphone-duo iPhone Duo ships on October 23 with a folding inner display, a compact outer display, and toolbars that move to the side. Here's what to check in your app first, and where the new iOS 27.1 APIs fit in. Fri, 18 Sep 2026 00:00:00 GMT undefined (Mick MacCallum) iPhone DuoSwiftUIUIKitLayoutiOS 27 https://bleepingswift.com/blog/replace-uiscreen-main-iphone-duo https://bleepingswift.com/blog/replace-uiscreen-main-iphone-duo UIScreen.main assumes your app lives on one screen with one size. iPhone Duo, iPhone Mirroring, and iPad windowing all break that assumption. Here's what to use instead in UIKit and SwiftUI. Sun, 13 Sep 2026 00:00:00 GMT undefined (Mick MacCallum) UIKitSwiftUIiPhone DuoLayout https://bleepingswift.com/blog/reservedregion-swiftui-iphone-duo-fold https://bleepingswift.com/blog/reservedregion-swiftui-iphone-duo-fold iPhone Duo reserves parts of its displays for the fold and the front cameras. Learn which regions exist, when system views handle them for you, and how to query ReservedRegion in SwiftUI and UIKit to move custom content out of the way. Wed, 23 Sep 2026 00:00:00 GMT undefined (Mick MacCallum) iPhone DuoSwiftUILayoutSafe AreaiOS 27 https://bleepingswift.com/blog/xcode-27-1-vs-27-2-beta-iphone-duo https://bleepingswift.com/blog/xcode-27-1-vs-27-2-beta-iphone-duo Apple is running two Xcode betas at once. Xcode 27.1 beta has the iPhone Duo SDK and simulator, while Xcode 27.2 beta has the 27.2 SDKs and new tooling. Here's what's in each, the known issues to watch for, and how to keep both installed. Mon, 21 Sep 2026 00:00:00 GMT undefined (Mick MacCallum) XcodeiPhone DuoiOS 27Simulator