58 lines
2.1 KiB
Markdown
58 lines
2.1 KiB
Markdown
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---
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title: Overlay 遮罩层
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description: 通过遮罩层，可以强调部分内容
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spline: message
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isComponent: true
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---
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<span class="coverages-badge" style="margin-right: 10px"><img src="https://img.shields.io/badge/coverages%3A%20lines-100%25-blue" /></span><span class="coverages-badge" style="margin-right: 10px"><img src="https://img.shields.io/badge/coverages%3A%20functions-100%25-blue" /></span><span class="coverages-badge" style="margin-right: 10px"><img src="https://img.shields.io/badge/coverages%3A%20statements-100%25-blue" /></span><span class="coverages-badge" style="margin-right: 10px"><img src="https://img.shields.io/badge/coverages%3A%20branches-100%25-blue" /></span>
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<div style="background: #ecf2fe; display: flex; align-items: center; line-height: 20px; padding: 14px 24px; border-radius: 3px; color: #555a65">
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<svg fill="none" viewBox="0 0 16 16" width="16px" height="16px" style="margin-right: 5px">
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<path fill="#0052d9" d="M8 15A7 7 0 108 1a7 7 0 000 14zM7.4 4h1.2v1.2H7.4V4zm.1 2.5h1V12h-1V6.5z" fillOpacity="0.9"></path>
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</svg>
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该组件于 0.10.0 版本上线，请留意版本。
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</div>
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## 引入
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全局引入，在 miniprogram 根目录下的`app.json`中配置，局部引入，在需要引入的页面或组件的`index.json`中配置。
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```json
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"usingComponents": {
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"t-overlay": "tdesign-miniprogram/overlay/overlay"
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}
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```
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## 代码演示
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### 基础使用
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{{ base }}
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## API
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### Overlay Props
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名称 | 类型 | 默认值 | 说明 | 必传
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-- | -- | -- | -- | --
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visible | Boolean | false | 是否展示 | N
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zIndex | Number | 11000 | 遮罩层及 | N
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duration | Number | 300 | 背景色过渡时间，单位毫秒 | N
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backgroundColor | String | - | 遮罩层的背景色 | N
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preventScrollThrough | Boolean | true | 防止滚动穿透，即不允许点击和滚动 | N
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### Overlay Events
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名称 | 参数 | 描述
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-- | -- | --
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click | `({ visible: boolean })` | 点击遮罩时触发
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### CSS 变量
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组件提供了下列 CSS 变量，可用于自定义样式。
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名称 | 默认值 | 描述
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-- | -- | --
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--td-overlay-bg-color | @font-gray-2 | -
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--td-overlay-transition-duration | 300ms | -
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