Agent-Skills.md

Agent Skills: iOS UI & Layout Standards

Implement UIKit navigation, Auto Layout, and Apple Human Interface Guidelines in iOS. Use when implementing UIKit navigation, Auto Layout constraints, or HIG compliance. (triggers: **/*View.swift, **/*.xib, **/*.storyboard, NSLayoutConstraint, UIStackView, SnapKit, layoutSubviews)

UncategorizedID: hoangnguyen0403/agent-skills-standard/ios-ui-navigation

Repository

hoangnguyen0403/agent-skills-standard
HoangNguyen0403License: Apache-2.0
362103

Install this agent skill to your local

pnpm dlx add-skill https://github.com/HoangNguyen0403/agent-skills-standard/tree/HEAD/skills/ios/ios-ui-navigation

Skill Files

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skills/ios/ios-ui-navigation/SKILL.md

Skill Metadata

Name
ios-ui-navigation
Description
"Implement UIKit navigation, Auto Layout, and Apple Human Interface Guidelines in iOS. Use when implementing UIKit navigation, Auto Layout constraints, or HIG compliance. (triggers: **/*View.swift, **/*.xib, **/*.storyboard, NSLayoutConstraint, UIStackView, SnapKit, layoutSubviews)"

iOS UI & Layout Standards

Priority: P0

Implementation Guidelines

Auto Layout

  • Code-Based Layout: Prefer programmatic layout using NSLayoutAnchor or SnapKit over Storyboards for better source control.
  • Safe Area: Always respect view.safeAreaLayoutGuide.
  • UIStackView: Use for linear layouts to reduce constraint complexity.

UIKit Best Practices

  • View Lifecycle: Perform layout adjustments in viewWillLayoutSubviews or updateConstraints.
  • Reusable Views: Extract complex UI into custom UIView subclasses.
  • Image Optimization: Use SF Symbols for icons. Preferred vector (PDF/SVG) for custom assets.
  • SwiftUI Bridge: Use UIViewRepresentable or UIViewControllerRepresentable to host UIKit in SwiftUI.

Human Interface Guidelines (HIG)

  • Accessibility: Support Dynamic Type and provide meaningful accessibilityLabel.
  • Feedback: Use UINotificationFeedbackGenerator for haptic feedback on actions.
  • Margins: Follow standard system margins (typically 16-20pt).

Anti-Patterns

  • No CGRect(x:y:w:h): Use Auto Layout.
  • No complex constraint logic in VC: Use UIStackView or custom views.
  • No Blank Screens: Use skeleton views or UIActivityIndicatorView.

References