Honor reduced motion settings with alternatives like fades or instant state changes. Ensure VoiceOver and TalkBack announce context, purpose, and outcomes in order. Provide focus management that avoids traps, and keep interactive regions logically grouped so guidance translates gracefully from sight and touch to speech and switch control.
Do not rely on color alone to indicate state or risk. Pair contrast-compliant palettes with icons, labels, and motion. Offer error explanations in plain language near the control. These redundancies help under glare, outdoors, or on older devices, and they demonstrate care that builds lasting trust.
Use SwiftUI or UIKit motion APIs, SF Symbols, and Core Haptics to keep signals precise and consistent. Respect Human Interface Guidelines for navigation stacks and modal decisions. Test under low power mode and spotty networks, ensuring transitions, haptics, and biometric prompts remain crisp without blocking essential controls.
Lean on Material motion, elevation, and stateful components. Compose and MotionLayout make delightful guidance feasible when performance matters. Follow system back behavior and permission flows carefully. Profile overdraw and jank, and ensure haptic patterns gracefully degrade across hardware so confirmations, warnings, and successes feel familiar, predictable, and respectful.
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