55 lines
1.3 KiB
Swift
55 lines
1.3 KiB
Swift
//
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// AppFont.swift
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// suixinkan
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//
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import UIKit
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/// 应用字体层级，基于 8pt 网格与 SF Pro（System）。
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enum AppFont {
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case caption
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case captionMedium
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case body
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case bodyMedium
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case subtitle
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case title
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case metric
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case display
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/// 对应 UIFont。
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var uiFont: UIFont {
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switch self {
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case .caption:
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return .systemFont(ofSize: 12, weight: .regular)
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case .captionMedium:
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return .systemFont(ofSize: 12, weight: .medium)
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case .body:
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return .systemFont(ofSize: 14, weight: .regular)
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case .bodyMedium:
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return .systemFont(ofSize: 14, weight: .medium)
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case .subtitle:
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return .systemFont(ofSize: 16, weight: .medium)
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case .title:
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return .systemFont(ofSize: 16, weight: .bold)
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case .metric:
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return .systemFont(ofSize: 18, weight: .bold)
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case .display:
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return .systemFont(ofSize: 28, weight: .semibold)
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}
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}
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/// 将字体应用到 UILabel。
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func apply(to label: UILabel) {
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label.font = uiFont
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}
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}
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extension UIFont {
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/// 通过 `AppFont` 获取系统字体。
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static func app(_ style: AppFont) -> UIFont {
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style.uiFont
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}
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}
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