Vant DropdownMenu 下拉菜单

引入

"usingComponents": {
  "van-dropdown-menu": "@vant/weapp/dropdown-menu/index",
  "van-dropdown-item": "@vant/weapp/dropdown-item/index"
}

代码演示

基础用法

<van-dropdown-menu>
  <van-dropdown-item value="{{ value1 }}" options="{{ option1 }}" />
  <van-dropdown-item value="{{ value2 }}" options="{{ option2 }}" />
</van-dropdown-menu>

Page({
  data: {
    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 },
    ],
    value1: 0,
    value2: a,
  },
});

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 value="{{ value1 }}" options="{{ option1 }}" />
  <van-dropdown-item id="item" title="{{ itemTitle }}">
    <van-cell title="{{ switchTitle1 }}">
      <van-switch
        slot="right-icon"
        size="24px"
        style=""
        checked="{{ switch1 }}"
        bind:change="onSwitch1Change"
      />
    </van-cell>
    <van-cell title="{{ switchTitle2 }}">
      <van-switch
        slot="right-icon"
        size="24px"
        style=""
        checked="{{ switch2 }}"
        bind:change="onSwitch2Change"
      />
    </van-cell>
    <van-button type="info" block bind:click="onConfirm">
      确定
    </van-button>
  </van-dropdown-item>
</van-dropdown-menu>

Page({
  data: {
    switchTitle1: 包邮,
    switchTitle2: 团购,
    itemTitle: 筛选,
    option1: [
      { text: 全部商品, value: 0 },
      { text: 新款商品, value: 1 },
      { text: 活动商品, value: 2 },
    ],
    value1: 0,
  },

  onConfirm() {
    this.selectComponent(#item).toggle();
  },

  onSwitch1Change({ detail }) {
    this.setData({ switch1: detail });
  },

  onSwitch2Change({ detail }) {
    this.setData({ switch2: detail });
  },
});

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 value="{{ value1 }}" options="{{ option1 }}" />
  <van-dropdown-item value="{{ 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 value="{{ value1 }}" options="{{ option1 }}" />
  <van-dropdown-item value="{{ value2 }}" options="{{ option2 }}" />
</van-dropdown-menu>

禁用菜单

<van-dropdown-menu>
  <van-dropdown-item value="{{ value1 }}" disabled options="{{ option1 }}" />
  <van-dropdown-item value="{{ 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