Apple SwiftUI iOS Design Best Practices

A builder's guide for implementing Apple-quality iOS interfaces in SwiftUI, grounded in two foundational design texts:

• Ken Kocienda — Creative Selection (empathy for the user, craft in coding, taste in choosing the best solution, demo culture of iterative refinement)
• John Edson — Design Like Apple (systems thinking, the product is the marketing, design out loud, design with conviction)

Contains 62 rules across 8 principle-based categories. Each rule identifies a specific anti-pattern, grounds the fix in a named principle, and provides the correct iOS 26 / Swift 6.2 SwiftUI implementation.

Scope & Relationship to Sibling Skills

This skill is the building and implementation guide — it teaches how to construct new SwiftUI interfaces from scratch using Apple-quality patterns. When loaded alongside ios-ui-refactor (reviewing/refactoring existing UI), this skill covers the greenfield implementation that ios-ui-refactor later audits. Use this skill for building new screens; use the sibling for evaluating and improving existing ones.

Clinic Architecture Contract (iOS 26 / Swift 6.2)

All guidance in this skill assumes the clinic modular MVVM-C architecture: