105 lines
3.2 KiB
Markdown
105 lines
3.2 KiB
Markdown
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---
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title: TabBar 标签栏
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description: 用于在不同功能模块之间进行快速切换，位于页面底部。
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spline: navigation
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isComponent: true
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---
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## 引入
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可在 `main.ts` 或在需要使用的页面或组件中引入。
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```js
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import TTabBar from '@tdesign/uniapp/tab-bar/tab-bar.vue';
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import TTabBarItem from '@tdesign/uniapp/tab-bar-item/tab-bar-item.vue';
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```
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### 组件类型
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#### 纯文本标签栏
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{{ text-only }}
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#### 图标加文字标签栏
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{{ base }}
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#### 纯图标标签栏
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{{ icon-only }}
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#### 双层级纯文本标签栏
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{{ sub }}
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### 组件样式
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#### 弱选中标签栏
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{{ badge }}
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#### 悬浮胶囊标签栏
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{{ round }}
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#### 自定义主题
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{{ custom }}
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## API
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### TabBar Props
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名称 | 类型 | 默认值 | 描述 | 必传
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-- | -- | -- | -- | --
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custom-style | Object | - | 自定义样式 | N
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bordered | Boolean | true | 是否显示外边框 | N
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fixed | Boolean | true | 是否固定在底部 | N
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placeholder | Boolean | false | 固定在底部时是否开启占位 | N
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safe-area-inset-bottom | Boolean | true | 是否开启底部安全区适配 | N
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shape | String | normal | 标签栏的形状。可选项：normal/round | N
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split | Boolean | true | 是否需要分割线 | N
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theme | String | normal | 选项风格。可选项：normal/tag | N
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value | String / Number / Array | - | 当前选中标签的索引。支持语法糖 `v-model:value`。TS 类型：`string \| number \| Array<string \| number>` | N
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default-value | String / Number / Array | - | 当前选中标签的索引。非受控属性。TS 类型：`string \| number \| Array<string \| number>` | N
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z-index | Number | 1 | 标签栏层级 | N
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### TabBar 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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### TabBarItem Props
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名称 | 类型 | 默认值 | 描述 | 必传
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-- | -- | -- | -- | --
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custom-style | Object | - | 自定义样式 | N
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badge-props | Object | {} | 图标右上角提示信息。TS 类型：`BadgeProps`，[Badge API Documents](./badge?tab=api)。[详细类型定义](https://github.com/tencent/tdesign-miniprogram/blob/develop/packages/uniapp-components/tab-bar-item/type.ts) | N
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icon | String / Object | - | 图标名称。传入对象时透传至 Icon 组件 | N
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sub-tab-bar | Array | - | 二级菜单。TS 类型：`SubTabBarItem[] ` `interface SubTabBarItem { value: string; label: string }`。[详细类型定义](https://github.com/tencent/tdesign-miniprogram/blob/develop/packages/uniapp-components/tab-bar-item/type.ts) | N
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value | String / Number | - | 标识符 | N
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### TabBarItem Slots
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名称 | 描述
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-- | --
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icon | 图标插槽，用于自定义图标区域内容
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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-tab-bar-bg-color | @bg-color-container | -
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--td-tab-bar-border-color | @border-level-1-color | -
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--td-tab-bar-round-shadow | @shadow-3 | -
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--td-tab-bar-active-bg | @brand-color-light | -
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--td-tab-bar-active-color | @brand-color | -
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--td-tab-bar-color | @text-color-primary | -
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--td-tab-bar-height | 80rpx | -
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--td-tab-bar-hover-bg-color | rgba(0, 0, 0, 0.05) | -
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--td-tab-bar-spread-border-color | @border-color | -
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--td-tab-bar-spread-shadow | @shadow-3 | -
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