@uiw/react-amap-context-menu
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地图图面一种特殊的信息窗体，即右键菜单。
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<hr>
ContextMenu 右键菜单
===
[](https://jaywcjlove.github.io/#/sponsor)
[](https://www.npmjs.com/package/@uiw/react-amap-context-menu)
[](https://www.npmjs.com/package/@uiw/react-amap-context-menu)
地图图面一种特殊的信息窗体，即右键菜单。[AMap.ContextMenu](https://a.amap.com/jsapi/static/doc/index.html#contextmenu) 类提供图面添加右键菜单的方式。具体使用方式如下
```jsx
import { ContextMenu } from '@uiw/react-amap';
// 或者单独安装使用
import { ContextMenu } from '@uiw/react-amap-context-menu';
```
### 基本用法
地图上右击鼠标，弹出自定义样式的右键菜单
```jsx mdx:preview
import ReactDOM from 'react-dom';
import React, { useState, useRef } from 'react';
import { Map, APILoader, ContextMenu } from '@uiw/react-amap';
const Example = () => {
const [show, setShow] = useState(true);
const mapRef = useRef();
let lnglat = null;
function handleMenu(type) {
if (mapRef && mapRef.current && mapRef.current.map) {
switch(type) {
case 'zoomIn': mapRef.current.map.zoomIn(); break;
case 'zoomOut': mapRef.current.map.zoomOut(); break;
case 'center': mapRef.current.map.setZoomAndCenter(4, [108.946609, 34.262324]); break;
}
if (type === 'marker' && lnglat) {
new AMap.Marker({
map: mapRef.current.map,
position: lnglat //基点位置
});
}
}
}
return (
<div style={{ width: '100%', height: '500px' }}>
<Map
ref={mapRef}
zoom={14}
center={[116.397637, 39.900001]}
scrollWheel={false}
onRightClick={(e) => {
lnglat = e.lnglat;
}}
>
<ContextMenu>
<ContextMenu.Item text="放大一级" onClick={(e) => handleMenu('zoomIn')} />
<ContextMenu.Item text="缩小一级" onClick={(e) => handleMenu('zoomOut')} />
<ContextMenu.Item text="缩放至全国范围" onClick={(e) => handleMenu('center')} />
<ContextMenu.Item text="添加标记" onClick={(e) => handleMenu('marker')} />
</ContextMenu>
</Map>
</div>
);
}
const Mount = () => (
<APILoader akey="a7a90e05a37d3f6bf76d4a9032fc9129">
<Example />
</APILoader>
);
export default Mount;
```
### Props
| 参数 | 说明 | 类型 | 默认值 |
|--------- |-------- |--------- |-------- |
| position | 右键菜单显示的位置 | `Vector \| LngLat` | - |
| content | 右键菜单内容（针对自定义菜单时，添加菜单内容及功能。可以是HTML要素字符串或者HTML DOM对象。） | `string \| HTMLElement` | - |
### 事件
| 参数 | 说明 | 类型 |
| ---- | ---- | ---- |
| onOpen | 打开之后触发事件 | `(opts: { type: string }): void;` |
| onClose | 关闭之后触发事件 | `(opts: { type: string }): void;` |