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
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 |