iOS Development Rules

38 rules for writing production-quality iOS apps. Each rule targets common LLM mistakes with concrete fixes.

Accessibility

REDUCE MOTION:

• Check: @Environment(.accessibilityReduceMotion) var reduceMotion
• When enabled:
  • Replace .spring() with .easeInOut(duration: 0.2)
  • Replace slide transitions with .opacity
  • Disable auto-playing animations
  • Keep functional animations (progress bars), remove decorative ones

withAnimation(reduceMotion ? .easeInOut(duration: 0.2) : .spring(response: 0.3)) {
    // state change
}
.transition(reduceMotion ? .opacity : .slide)