DuoReady
DEVELOPER GUIDES

A question. A method. A next step.

Original calculations and practical review plans. Each guide separates what you can inspect from what you still need to test.

01 · FIELD NOTES

SwiftUI text clipping: test narrow layouts and Dynamic Type

Find a reproducible failure with long content, accessibility text sizes and keyboard-visible forms.

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02 · FIELD NOTES

Preserve SwiftUI drafts and selection across resizing

Use one workflow to expose state resets during navigation, display changes and Split View.

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03 · FIELD NOTES

iPhone Duo screen sizes: pixels, screenshots and app layout

Understand which dimensions belong in an image calculation—and which must be measured in your running app.

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04 · FIELD NOTES

Testing iPhone Duo with Xcode 27.1 beta

A practical simulator checklist for adaptive layouts, Duo poses and clear test evidence, updated after the SDK release.

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05 · FIELD NOTES

Camera preview mirroring and orientation: a test checklist

Separate preview appearance, captured output and state continuity with a reproducible camera test plan.

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Try the geometry yourself.

Compare a screenshot at different ratios without sending it to a server.

Open the free layout lab ↗