向下弹出的列表。
当页面上的操作命令过多时,用此组件可以收纳操作元素。点击或移入触点,会出现一个下拉菜单。可在列表中进行选择,并执行相应的命令。
<template>
<a-dropdown>
<a class="ant-dropdown-link" href="#"> Hover me <a-icon type="down" /> a>
<a-menu slot="overlay">
<a-menu-item>
<a href="javascript:;">1st menu itema>
a-menu-item>
<a-menu-item>
<a href="javascript:;">2nd menu itema>
a-menu-item>
<a-menu-item>
<a href="javascript:;">3rd menu itema>
a-menu-item>
a-menu>
a-dropdown>
template>
<template>
<a-dropdown :trigger="['contextmenu']">
<span style="user-select: none">Right Click on Mespan>
<a-menu slot="overlay">
<a-menu-item key="1">1st menu itema-menu-item>
<a-menu-item key="2">2nd menu itema-menu-item>
<a-menu-item key="3">3rd menu itema-menu-item>
a-menu>
a-dropdown>
template>
<template>
<div>
<a-dropdown-button @click="handleButtonClick">
Dropdown
<a-menu slot="overlay" @click="handleMenuClick">
<a-menu-item key="1"><a-icon type="user" />1st menu itema-menu-item>
<a-menu-item key="2"><a-icon type="user" />2nd menu itema-menu-item>
<a-menu-item key="3"><a-icon type="user" />3rd itema-menu-item>
a-menu>
a-dropdown-button>
<a-dropdown-button @click="handleButtonClick" disabled style="margin-left: 8px">
Dropdown
<a-menu slot="overlay" @click="handleMenuClick">
<a-menu-item key="1"><a-icon type="user" />1st menu itema-menu-item>
<a-menu-item key="2"><a-icon type="user" />2nd menu itema-menu-item>
<a-menu-item key="3"><a-icon type="user" />3rd itema-menu-item>
a-menu>
a-dropdown-button>
<a-dropdown>
<a-menu slot="overlay" @click="handleMenuClick">
<a-menu-item key="1"><a-icon type="user" />1st menu itema-menu-item>
<a-menu-item key="2"><a-icon type="user" />2nd menu itema-menu-item>
<a-menu-item key="3"><a-icon type="user" />3rd itema-menu-item>
a-menu>
<a-button style="margin-left: 8px"> Button <a-icon type="down" /> a-button>
a-dropdown>
div>
template>
<script>
export default {
methods: {
handleButtonClick(e) {
console.log('click left button', e);
},
handleMenuClick(e) {
console.log('click', e);
},
},
};
script>
点击菜单项后会触发事件,用户可以通过相应的菜单项 key 进行不同的操作。
<template>
<a-dropdown>
<a class="ant-dropdown-link" @click="onClickTwo"> Hover me, Click menu item <a-icon type="down" /> a>
<a-menu slot="overlay" @click="onClick">
<a-menu-item key="1">1st menu itema-menu-item>
<a-menu-item key="2">2nd menu itema-menu-item>
<a-menu-item key="3">3rd menu itema-menu-item>
a-menu>
a-dropdown>
template>
<script>
export default {
methods: {
onClick({ key }) {
this.$message.success(`点击了第 ${key} 个下拉菜单`)
},
onClickTwo() {
this.$message.success("点击了一下链接")
}
}
};
script>
<template>
<a-dropdown>
<a class="ant-dropdown-link" href="#"> Hover me <a-icon type="down" /> a>
<a-menu slot="overlay">
<a-menu-item key="0">
<a target="_blank" rel="noopener noreferrer" href="http://www.alipay.com/">1st menu itema>
a-menu-item>
<a-menu-item key="1">
<a target="_blank" rel="noopener noreferrer" href="http://www.taobao.com/">2nd menu itema>
a-menu-item>
<a-menu-divider />
<a-menu-item key="3" disabled>3rd menu item(disabled)a-menu-item>
a-menu>
a-dropdown>
template>
<template>
<a-dropdown v-model="visible">
<a class="ant-dropdown-link" href="#"> Hover me <a-icon type="down" /> a>
<a-menu slot="overlay" @click="handleMenuClick">
<a-menu-item key="1">Clicking me will not close the menu.a-menu-item>
<a-menu-item key="2">Clicking me will not close the menu also.a-menu-item>
<a-menu-item key="3">Clicking me will close the menua-menu-item>
a-menu>
a-dropdown>
template>
<script>
export default {
data() {
return {
visible: false,
};
},
methods: {
handleMenuClick(e) {
if (e.key === '3') {
this.visible = false;
}
},
},
};
script>
<template>
<div id="components-dropdown-demo-placement" style="padding-top: 100px;">
<template v-for="(placement, index) in placements">
<a-dropdown :placement="placement">
<a-button style="width: 350px">{{placement}}a-button>
<a-menu slot="overlay">
<a-menu-item>
<a target="_blank" rel="noopener noreferrer" href="http://www.alipay.com/"
>1st menu itema
>
a-menu-item>
<a-menu-item>
<a target="_blank" rel="noopener noreferrer" href="http://www.taobao.com/"
>2nd menu itema
>
a-menu-item>
<a-menu-item>
<a target="_blank" rel="noopener noreferrer" href="http://www.tmall.com/"
>3rd menu itema
>
a-menu-item>
a-menu>
a-dropdown>
<br v-if="index === 2" />
template>
div>
template>
<script>
export default {
data() {
return {
placements: [
'bottomLeft',
'bottomCenter',
'bottomRight',
'topLeft',
'topCenter',
'topRight',
],
};
},
};
script>
<style>
#components-dropdown-demo-placement .ant-btn {
margin-right: 8px;
margin-bottom: 8px;
}
style>
传入的菜单里有多个层级。
<template>
<a-dropdown>
<a class="ant-dropdown-link" href="#"> Cascading menu <a-icon type="down" /> a>
<a-menu slot="overlay">
<a-menu-item>1st menu itema-menu-item>
<a-menu-item>2nd menu itema-menu-item>
<a-sub-menu title="sub menu" key="test">
<a-menu-item>3rd menu itema-menu-item>
<a-menu-item>4th menu itema-menu-item>
a-sub-menu>
<a-sub-menu title="disabled sub menu" disabled>
<a-menu-item>5d menu itema-menu-item>
<a-menu-item>6th menu itema-menu-item>
a-sub-menu>
a-menu>
a-dropdown>
template>
<template>
<a-dropdown :trigger="['click']">
<a class="ant-dropdown-link" href="#"> Click me <a-icon type="down" /> a>
<a-menu slot="overlay">
<a-menu-item key="0">
<a href="http://www.alipay.com/">1st menu itema>
a-menu-item>
<a-menu-item key="1">
<a href="http://www.taobao.com/">2nd menu itema>
a-menu-item>
<a-menu-divider />
<a-menu-item key="3">3rd menu itema-menu-item>
a-menu>
a-dropdown>
template>
参数 | 说明 | 类型 | 默认值 |
---|---|---|---|
disabled |
菜单是否禁用 | boolean |
- |
getPopupContainer |
菜单渲染父节点。默认渲染到 body 上,如果你遇到菜单滚动定位问题,试试修改为滚动的区域,并相对其定位。 | Function(triggerNode) |
() => document.body |
overlay(slot-scope) |
菜单 | boolean |
- |
disabled |
菜单 | Menu | - |
overlayClassName |
下拉根元素的类名称 | string |
- |
overlayStyle |
下拉根元素的样式 | object |
- |
placement |
菜单弹出位置: bottomLeft bottomCenter bottomRight topLeft topCenter topRight |
String |
bottomLeft |
trigger |
触发下拉的行为, 移动端不支持 hover | Array< click hover contextmenu > |
['hover'] |
visible(v-model) |
菜单是否显示 | boolean |
- |
overlay
菜单使用 Menu,还包括菜单项 Menu.Item
,分割线 Menu.Divider
。
注意: Menu.Item 必须设置唯一的 key 属性。
Dropdown 下的 Menu 默认不可选中。如果需要菜单可选中,可以指定.
事件名称 | 说明 | 回调参数 |
---|---|---|
visibleChange |
菜单显示状态改变时调用,参数为 visible | function(visible) |
参数 | 说明 | 类型 | 默认值 |
---|---|---|---|
disabled |
菜单是否禁用 | boolean |
- |
overlay(slot-scope) |
菜单 | Menu | - |
placement |
菜单弹出位置: bottomLeft bottomCenter bottomRight topLeft topCenter topRight |
String |
bottomLeft |
size |
按钮大小,和 Button 一致 | string |
'default' |
trigger |
触发下拉的行为 | Array<click hover contextmenu > |
['hover'] |
type |
按钮类型,和 Button 一致 | string |
'default' |
visible(v-model) |
菜单是否显示 | boolean |
- |
事件名称 | 说明 | 回调参数 |
---|---|---|
visibleChange |
菜单显示状态改变时调用,参数为 visible | function(visible) |
click |
点击左侧按钮的回调,和 Button 一致 | Function |