iOS 26 Adds New Layout Guide to Prevent UI Overlap with iPadOS Traffic Light

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A developer created a SwiftUI demo to visualize two layout guides available on iPadOS: the standard safeAreaLayoutGuide and the newly introduced layoutGuide with cornerAdaptation margins from iOS 26 SDKs. The demo arose from work on fixing layout issues in Focus browser and Firefox for iOS. While the safe area layout guide helps avoid overlap with notches and home bars, it does not prevent UI elements from being obscured by the iPadOS window traffic light controls in windowed mode. The new margins cornerAdaptation layout guide was specifically introduced to address this gap. The developer shared full SwiftUI source code for the demo, which visually distinguishes the two regions using blue and orange outlines.

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