IosDynamicTypeSemantic [rule] v1.0.0

Use semantic system text styles for all text; never specify hardcoded point sizes.

Applies To

all text elements in SwiftUI or UIKit iOS views

IosDynamicTypeSemantic [rule] v1.0.0

Use semantic system text styles for all text; never specify hardcoded point sizes.

Applies To

all text elements in SwiftUI or UIKit iOS views

Examples

• SwiftUI: .font(.body), .font(.headline), .font(.caption) — scales automatically.
• UIKit: UIFont.preferredFont(forTextStyle: .body) with adjustsFontForContentSizeCategory = true.
• Anti-example: .font(.system(size: 17)) or UIFont.systemFont(ofSize: 17) — hardcoded, ignores Dynamic Type.

Rationale

Hardcoded point sizes ignore Dynamic Type and break accessibility for the millions of iOS users who increase or decrease text size in Settings. Semantic styles (.headline, .body, .caption, .footnote, etc.) scale proportionally across all Dynamic Type settings, including the five Larger Accessibility Sizes. Apple HIG source: Rule 3.1 — Use Built-in Text Styles; Anti-Pattern #6.

Applies To

all text elements in SwiftUI or UIKit iOS views