Vant DropdownMenu 下拉菜单

引入

import Vue from 'vue';
import { DropdownMenu, DropdownItem } from 'vant';

Vue.use(DropdownMenu);
Vue.use(DropdownItem);

代码演示

基础用法

<van-dropdown-menu>
  <van-dropdown-item v-model="value1" :options="option1" />
  <van-dropdown-item v-model="value2" :options="option2" />
</van-dropdown-menu>

export default {
  data() {
    return {
      value1: 0,
      value2: 'a',
      option1: [
        { text: '全部商品', value: 0 },
        { text: '新款商品', value: 1 },
        { text: '活动商品', value: 2 }
      ],
      option2: [
        { text: '默认排序', value: 'a' },
        { text: '好评排序', value: 'b' },
        { text: '销量排序', value: 'c' },
      ]
    }
  }
};

自定义菜单内容

通过插槽可以自定义DropdownItem的内容，此时需要使用实例上的toggle方法手动控制菜单的显示

<van-dropdown-menu>
  <van-dropdown-item v-model="value" :options="option" />
  <van-dropdown-item title="筛选" ref="item">
    <van-switch-cell v-model="switch1" title="包邮" />
    <van-switch-cell v-model="switch2" title="团购" />
    <van-button block type="info" @click="onConfirm">确认</van-button>
  </van-dropdown-item>
</van-dropdown-menu>

export default {
  data() {
    return {
      value: 0,
      switch1: false,
      switch2: false,
      option: [
        { text: '全部商品', value: 0 },
        { text: '新款商品', value: 1 },
        { text: '活动商品', value: 2 }
      ]
    }
  },
  methods: {
    onConfirm() {
      this.$refs.item.toggle();
    }
  }
};

自定义选中态颜色

通过active-color属性可以自定义菜单标题和选项的选中态颜色

<van-dropdown-menu active-color="#ee0a24">
  <van-dropdown-item v-model="value1" :options="option1" />
  <van-dropdown-item v-model="value2" :options="option2" />
</van-dropdown-menu>

向上展开

将direction属性值设置为up，菜单即可向上展开

<van-dropdown-menu direction="up">
  <van-dropdown-item v-model="value1" :options="option1" />
  <van-dropdown-item v-model="value2" :options="option2" />
</van-dropdown-menu>

禁用菜单

<van-dropdown-menu>
  <van-dropdown-item v-model="value1" disabled :options="option1" />
  <van-dropdown-item v-model="value2" disabled :options="option2" />
</van-dropdown-menu>

API

DropdownMenu Props

DropdownItem Props

DropdownItem Events

DropdownItem Slots

DropdownItem 方法

通过 ref 可以获取到 DropdownItem 实例并调用实例方法，详见 组件实例方法

Option 数据结构

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