105 lines
4.0 KiB
Markdown
105 lines
4.0 KiB
Markdown
---
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title: Navbar 导航栏
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description: 用于不同页面之间切换或者跳转,位于内容区的上方,系统状态栏的下方。
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spline: navigation
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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-97%25-blue" /></span><span class="coverages-badge" style="margin-right: 10px"><img src="https://img.shields.io/badge/coverages%3A%20functions-87%25-blue" /></span><span class="coverages-badge" style="margin-right: 10px"><img src="https://img.shields.io/badge/coverages%3A%20statements-95%25-blue" /></span><span class="coverages-badge" style="margin-right: 10px"><img src="https://img.shields.io/badge/coverages%3A%20branches-84%25-blue" /></span>
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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-navbar": "tdesign-miniprogram/navbar/navbar",
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}
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```
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## 代码演示
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<a href="https://developers.weixin.qq.com/s/REHT3emm7kS5" title="在开发者工具中预览效果" target="_blank" rel="noopener noreferrer"> 在开发者工具中预览效果 </a>
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<blockquote style="background-color: #d9e1ff; font-size: 15px; line-height: 26px;margin: 16px 0 0;padding: 16px; border-radius: 6px; color: #0052d9" >
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<p>Tips: 请确保开发者工具为打开状态。导入开发者工具后,依次执行:npm i > 构建npm包 > 勾选 "将JS编译成ES5"</p>
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</blockquote>
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### 基础导航栏
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{{ base }}
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### 胶囊样式导航栏
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{{ back-home }}
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### 带搜索导航栏
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{{ search }}
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### 带图片导航栏
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{{ img }}
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### 组件样式
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{{ left-title }}
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### 自定义颜色
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{{ custom-color }}
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## API
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### Navbar Props
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名称 | 类型 | 默认值 | 描述 | 必传
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-- | -- | -- | -- | --
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style | Object | - | 样式 | N
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custom-style | Object | - | 样式,一般用于开启虚拟化组件节点场景 | N
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animation | Boolean | true | 是否添加动画效果 | N
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capsule | Slot | - | 左侧胶囊区域。[通用类型定义](https://github.com/Tencent/tdesign-miniprogram/blob/develop/src/common/common.ts) | N
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delta | Number | 1 | 后退按钮后退层数,含义参考 [wx.navigateBack](https://developers.weixin.qq.com/miniprogram/dev/api/route/wx.navigateBack.html),特殊的,传入 0 不会发生执行 wx.navigateBack | N
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fixed | Boolean | true | 是否固定在顶部 | N
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left | Slot | - | `0.26.0`。左侧内容区域。[通用类型定义](https://github.com/Tencent/tdesign-miniprogram/blob/develop/src/common/common.ts) | N
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left-arrow | Boolean | false | `0.26.0`。是否展示左侧箭头 | N
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title | String / Slot | - | 页面标题。[通用类型定义](https://github.com/Tencent/tdesign-miniprogram/blob/develop/src/common/common.ts) | N
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title-max-length | Number | - | 标题文字最大长度,超出的范围使用 `...` 表示 | N
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visible | Boolean | true | 是否显示 | N
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### Navbar Events
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名称 | 参数 | 描述
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-- | -- | --
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complete | \- | navigateBack 执行完成后触发(失败或成功均会触发)
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fail | \- | navigateBack 执行失败后触发
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go-back | \- | 点击左侧箭头时触发
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success | \- | navigateBack 执行成功后触发
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### Navbar External Classes
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类名 | 描述
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-- | --
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t-class | 根节点样式类
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t-class-capsule | 左侧胶囊区域样式类
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t-class-center | 中间内容样式类
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t-class-home-icon | 首页图标样式类
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t-class-left | 左侧内容样式类
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t-class-left-icon | 左侧图标样式类
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t-class-nav-btn | 导航按钮样式类
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t-class-title | 标题样式类
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### CSS Variables
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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-navbar-bg-color | @bg-color-container | -
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--td-navbar-capsule-border-color | #e3e6ea | -
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--td-navbar-capsule-border-radius | 32rpx | -
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--td-navbar-capsule-height | 64rpx | -
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--td-navbar-capsule-width | 176rpx | -
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--td-navbar-color | @font-gray-1 | -
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--td-navbar-height | 96rpx | -
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--td-navbar-left-arrow-size | 48rpx | -
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--td-navbar-title-font-size | 36rpx | -
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--td-navbar-title-font-weight | 600 | - |