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How iOS Developers Should Prepare Apps for Apple's Foldable iPhone Duo

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Apple's anticipated foldable iPhone, referred to as the iPhone Duo, presents new UI and layout challenges for iOS developers. Unlike standard device upgrades, a foldable display dynamically changes the available screen space, making hardcoded dimensions and fixed layouts problematic. Developers are advised to shift from designing for specific screen sizes to building responsive, adaptive interfaces that adjust based on available space. Key areas to address include safe-area handling, flexible navigation patterns, and avoiding portrait-only or narrow-display assumptions. Experts recommend a screen-by-screen audit of existing apps to identify where fixed layouts may break before undertaking broader development work.

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