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使用 WCAG 2.2 Level AA 标准设计、实施和审计包容性数字产品。运用此技能为 Web 生成语义 ARIA，并为 Web 和原生平台（iOS/Android）生成无障碍特性。
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Showing SKILL.md
| name | accessibility |
| description | 使用 WCAG 2.2 Level AA 标准设计、实施和审计包容性数字产品。运用此技能为 Web 生成语义 ARIA，并为 Web 和原生平台（iOS/Android）生成无障碍特性。 |
| origin | ECC |
本技能确保数字界面对于所有用户（包括使用屏幕阅读器、开关控制或键盘导航的用户）具有可感知性、可操作性、可理解性和健壮性（POUR）。它专注于 WCAG 2.2 成功标准的技术实现。
aria-label、accessibilityLabel 和 contentDescription 提供上下文。确定功能目的（例如，这是按钮、链接还是标签页？）。在诉诸自定义角色之前，优先使用最语义化的原生元素。
Name, Role, Value 模式。aria-live 或活动区域。flowchart TD
UI["UI Component"] --> Platform{Platform?}
Platform -->|Web| ARIA["WAI-ARIA + HTML5"]
Platform -->|iOS| SwiftUI["Accessibility Traits + Labels"]
Platform -->|Android| Compose["Semantics + ContentDesc"]
ARIA --> AT["Assistive Technology (Screen Readers, Switches)"]
SwiftUI --> AT
Compose --> AT
| 特性 | Web (HTML/ARIA) | iOS (SwiftUI) | Android (Compose) |
|---|---|---|---|
| 主标签 | aria-label / <label> | .accessibilityLabel() | contentDescription |
| 辅助提示 | aria-describedby | .accessibilityHint() | Modifier.semantics { stateDescription = ... } |
| 操作角色 | role="button" | .accessibilityAddTraits(.isButton) | Modifier.semantics { role = Role.Button } |
| 实时更新 | aria-live="polite" | .accessibilityLiveRegion(.polite) | Modifier.semantics { liveRegion = LiveRegionMode.Polite } |
<form role="search">
<label for="search-input" class="sr-only">Search products</label>
<input type="search" id="search-input" placeholder="Search..." />
<button type="submit" aria-label="Submit Search">
<svg aria-hidden="true">...</svg>
</button>
</form>
Button(action: deleteItem) {
Image(systemName: "trash")
}
.accessibilityLabel("Delete item")
.accessibilityHint("Permanently removes this item from your list")
.accessibilityAddTraits(.isButton)
Switch(
checked = isEnabled,
onCheckedChange = { onToggle() },
modifier = Modifier.semantics {
contentDescription = "Enable notifications"
}
)
<div> 或 <span> 处理点击事件，但未添加角色和键盘支持。Escape 键或显式关闭按钮退出（WCAG SC 2.1.2）。Escape 键或关闭按钮）。frontend-patternsdesign-systemliquid-glass-designswiftui-patterns