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suixinkan/Core/Design/AppMetrics.swift

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+//
+//  AppMetrics.swift
+//  suixinkan
+//
+//  Created by Codex on 2026/6/20.
+//
+
+import CoreGraphics
+
+/// App 内通用尺寸定义。这里只放跨页面复用的字号和间距，具体业务页面的特殊尺寸仍留在页面本地。
+final class AppMetrics {
+    private init() {}
+
+    /// 字体尺寸实体，统一维护 App 内常用字号。
+    enum FontSize {
+        static let caption: CGFloat = 12
+        static let footnote: CGFloat = 13
+        static let subheadline: CGFloat = 14
+        static let body: CGFloat = 16
+        static let callout: CGFloat = 17
+        static let title3: CGFloat = 18
+        static let title2: CGFloat = 20
+        static let title: CGFloat = 24
+        static let largeTitle: CGFloat = 30
+    }
+
+    /// 间距实体，统一维护页面边距和组件间距。
+    enum Spacing {
+        static let xxxSmall: CGFloat = 2
+        static let xxSmall: CGFloat = 4
+        static let xSmall: CGFloat = 8
+        static let small: CGFloat = 12
+        static let medium: CGFloat = 16
+        static let mediumLarge: CGFloat = 18
+        static let large: CGFloat = 20
+        static let sheet: CGFloat = 22
+        static let xLarge: CGFloat = 24
+        static let xxLarge: CGFloat = 30
+        static let pageHorizontal: CGFloat = 16
+        static let pageVertical: CGFloat = 24
+    }
+
+    /// 控件尺寸实体，统一维护按钮、输入框和图标点击区尺寸。
+    enum ControlSize {
+        static let smallIcon: CGFloat = 16
+        static let checkboxIcon: CGFloat = 20
+        static let passwordIcon: CGFloat = 22
+        static let progressWidth: CGFloat = 22
+        static let checkboxTapArea: CGFloat = 28
+        static let iconTapArea: CGFloat = 32
+        static let sheetButtonHeight: CGFloat = 48
+        static let primaryButtonHeight: CGFloat = 50
+        static let inputHeight: CGFloat = 52
+    }
+
+    /// 行距实体，统一维护多行文本的常用行间距。
+    enum LineSpacing {
+        static let title: CGFloat = 3
+    }
+
+    /// 圆角尺寸实体，统一维护输入框、按钮和卡片圆角。
+    enum CornerRadius {
+        static let input: CGFloat = 12
+        static let button: CGFloat = 12
+        static let card: CGFloat = 16
+    }
+}