Tabbar 标签栏

引入

import Vue from 'vue';
import { Tabbar, TabbarItem } from 'vant';
Vue.use(Tabbar);
Vue.use(TabbarItem);

代码演示

基础用法

v-model默认绑定选中标签的索引值，通过修改v-model即可切换选中的标签

<van-tabbar v-model="active">
  <van-tabbar-item icon="home-o">标签</van-tabbar-item>
  <van-tabbar-item icon="search">标签</van-tabbar-item>
  <van-tabbar-item icon="friends-o">标签</van-tabbar-item>
  <van-tabbar-item icon="setting-o">标签</van-tabbar-item>
</van-tabbar>

export default {
  data() {
    return {
      active: 0,
    };
  },
};

通过名称匹配

在标签指定name属性的情况下，v-model的值为当前标签的name

<van-tabbar v-model="active">
  <van-tabbar-item name="home" icon="home-o">标签</van-tabbar-item>
  <van-tabbar-item name="search" icon="search">标签</van-tabbar-item>
  <van-tabbar-item name="friends" icon="friends-o">标签</van-tabbar-item>
  <van-tabbar-item name="setting" icon="setting-o">标签</van-tabbar-item>
</van-tabbar>

export default {
  data() {
    return {
      active: 'home',
    };
  },
};

徽标提示

设置dot属性后，会在图标右上角展示一个小红点。设置badge属性后，会在图标右上角展示相应的徽标

<van-tabbar v-model="active">
  <van-tabbar-item icon="home-o">标签</van-tabbar-item>
  <van-tabbar-item icon="search" dot>标签</van-tabbar-item>
  <van-tabbar-item icon="friends-o" badge="5">标签</van-tabbar-item>
  <van-tabbar-item icon="setting-o" badge="20">标签</van-tabbar-item>
</van-tabbar>

自定义图标

通过 icon 插槽自定义图标，可以通过 slot-scope 判断标签是否选中

<van-tabbar v-model="active">
  <van-tabbar-item badge="3">
    <span>自定义</span>
    <template #icon="props">
      <img :src="props.active ? icon.active : icon.inactive" />
    </template>
  </van-tabbar-item>
  <van-tabbar-item icon="search">标签</van-tabbar-item>
  <van-tabbar-item icon="setting-o">标签</van-tabbar-item>
</van-tabbar>

export default {
  data() {
    return {
      active: 0,
      icon: {
        active: 'https://img.yzcdn.cn/vant/user-active.png',
        inactive: 'https://img.yzcdn.cn/vant/user-inactive.png',
      },
    };
  },
};

自定义颜色

<van-tabbar v-model="active" active-color="#07c160" inactive-color="#000">
  <van-tabbar-item icon="home-o">标签</van-tabbar-item>
  <van-tabbar-item icon="search">标签</van-tabbar-item>
  <van-tabbar-item icon="friends-o">标签</van-tabbar-item>
  <van-tabbar-item icon="setting-o">标签</van-tabbar-item>
</van-tabbar>

监听切换事件

<van-tabbar v-model="active" @change="onChange">
  <van-tabbar-item icon="home-o">标签1</van-tabbar-item>
  <van-tabbar-item icon="search">标签2</van-tabbar-item>
  <van-tabbar-item icon="friends-o">标签3</van-tabbar-item>
  <van-tabbar-item icon="setting-o">标签4</van-tabbar-item>
</van-tabbar>

import { Notify } from 'vant';
export default {
  methods: {
    onChange(index) {
      Notify({ type: 'primary', message: index });
    },
  },
};

路由模式

标签栏支持路由模式，用于搭配vue-router使用。路由模式下会匹配页面路径和标签的to属性，并自动选中对应的标签

<router-view />
<van-tabbar route>
  <van-tabbar-item replace to="/home" icon="home-o">
    标签
  </van-tabbar-item>
  <van-tabbar-item replace to="/search" icon="search">
    标签
  </van-tabbar-item>
</van-tabbar>

API

Tabbar Props

Tabbar Events

TabbarItem Props

TabbarItem Slots