vant-weapp/packages/dropdown-menu

DropdownMenu 下拉菜单

介绍

下拉菜单

引入

在app.json或index.json中引入组件，默认为ES6版本，ES5引入方式参见快速上手

"usingComponents": {
  "van-dropdown-menu": "path/to/@vant/weapp/dist/dropdown-menu/index",
  "van-dropdown-item": "path/to/@vant/weapp/dist/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

<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="height: 26px"
        checked="{{ switch1 }}"
        bind:change="onSwitch1Change"
      />
    </van-cell>
    <van-cell title="{{ switchTitle2 }}">
      <van-switch
        slot="right-icon"
        size="24px"
        style="height: 26px"
        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 });
  }
});

自定义选中状态颜色

<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

<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

Attribute	Description	Type	Default	Version
active-color	菜单标题和选项的选中态颜色	string	#1989fa	-
z-index	菜单栏 z-index 层级	number	10	-
duration	动画时长，单位毫秒	number	200	-
direction	菜单展开方向，可选值为up	string	down	-
overlay	是否显示遮罩层	boolean	true	-
close-on-click-overlay	是否在点击遮罩层后关闭菜单	boolean	true	-
close-on-click-outside	是否在点击外部 menu 后关闭菜单	boolean	true	-

DropdownItem Props

Attribute	Description	Type	Default	Version
value	当前选中项对应的 value	string | number	-	-
title	菜单项标题	string	Text of selected option	-
options	选项数组	Option[]	[]	-
disabled	是否禁用菜单	boolean	false	-
title-class	标题额外类名	string	-	-

DropdownItem Events

Event	Description	Arguments
change	点击选项导致 value 变化时触发	value
close	关闭菜单栏时触发	-

DropdownItem Methods

通过 selectComponent(id) 可访问

Name	Attribute	Return value	Description
toggle	show: boolean	-	切换菜单是否展示

Data Structure of Option

Key	Description	Type
text	文字	string
value	标识符	string | number
icon	左侧图标名称或图片链接，可选值见 Icon 组件	string