@uiw/react-baidu-map-navigation-control
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Baidu Map map-navigation-control Components for React.
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NavigationControl 平移缩放控件
===
[](https://jaywcjlove.github.io/#/sponsor)
[](https://www.npmjs.com/package/@uiw/react-baidu-map-navigation-control)
[](https://www.npmjs.com/package/@uiw/react-baidu-map-navigation-control)
地图的平移缩放控件，可以对地图进行上下左右四个方向的平移和缩放操作。你也可以使用 `Map` 组件 `widget` 属性来设置控件更方便。
```jsx
import { NavigationControl, useNavigationControl } from '@uiw/react-baidu-map';
// 或者单独安装使用
import NavigationControl, { useNavigationControl } from '@uiw/react-baidu-map-navigation-control';
```
### 基本用法
```jsx mdx:preview
import React, { useState } from 'react';
import { Map, APILoader, NavigationControl } from '@uiw/react-baidu-map';
const Example = () => {
const [show, setShow] = useState(true);
const [type, setType] = useState(BMAP_NAVIGATION_CONTROL_LARGE);
return (
<>
<button onClick={() => setShow(!show)}>
{show ? '关闭' : '开启'}
</button>
<button onClick={() => setType(BMAP_NAVIGATION_CONTROL_PAN)}>
平移按钮
</button>
<button onClick={() => setType(BMAP_NAVIGATION_CONTROL_ZOOM)}>
缩放按钮
</button>
<button onClick={() => setType(BMAP_NAVIGATION_CONTROL_SMALL)}>
平移和缩放按钮
</button>
<button onClick={() => setType(BMAP_NAVIGATION_CONTROL_LARGE)}>
恢复默认
</button>
<Map zoom={13} style={{ height: 350 }}>
{show && (
<NavigationControl type={type} enableGeolocation showZoomInfo />
)}
<NavigationControl
offset={new BMap.Size(40, 40)}
anchor={BMAP_ANCHOR_TOP_RIGHT}
visiable={show}
type={BMAP_NAVIGATION_CONTROL_PAN}
enableGeolocation
showZoomInfo
/>
</Map>
</>
);
}
const Demo = () => (
<div style={{ width: '100%' }}>
<APILoader akay="eYpCTECSntZmw0WyoQ7zFpCRR9cpgHFG">
<Example />
</APILoader>
</div>
);
export default Demo;
```
### 使用 hooks
`navigationControl`, `setNavigationControl`
```jsx mdx:preview
import React from 'react';
import { useRef, useEffect, useState } from 'react';
import { Map, APILoader, Provider, useMap, useNavigationControl } from '@uiw/react-baidu-map';
const Example = () => {
const divElm = useRef(null);
const { setContainer, map } = useMap();
const { navigationControl } = useNavigationControl({
type: BMAP_NAVIGATION_CONTROL_SMALL
});
useEffect(() => {
if (divElm.current && !map) {
setContainer(divElm.current);
}
}, [map]);
return (
<>
<button onClick={() => navigationControl.setType(BMAP_NAVIGATION_CONTROL_PAN)}>
平移按钮
</button>
<button onClick={() => navigationControl.setType(BMAP_NAVIGATION_CONTROL_LARGE)}>
平移、缩放按钮和滑块
</button>
<div ref={divElm} style={{ height: 350 }} />
</>
);
}
const Demo = () => (
<div style={{ width: '100%' }}>
<APILoader akay="eYpCTECSntZmw0WyoQ7zFpCRR9cpgHFG">
<Provider>
<Example />
</Provider>
</APILoader>
</div>
);
export default Demo;
```
### Props
| 参数 | 说明 | 类型 | 默认值 |
| ----- | ----- | ----- | ----- |
| visiable | 覆盖物是否可见。 | `boolean` | - |
| anchor | 控件的位置偏移值。| `ControlAnchor` | `BMAP_ANCHOR_TOP_RIGHT` |
| offset | 控件的水平偏移值。 | `BMap.Size` | - |
| type | 平移缩放控件的类型。 | `NavigationControlType` | `BMAP_NAVIGATION_CONTROL_LARGE` |
| showZoomInfo | 是否显示级别提示信息。 | `boolean` | - |
| enableGeolocation | 控件是否集成定位功能。 | `boolean` | `false` |
### NavigationControlType
| 常量 | 值 | 描述 |
| ----- | ----- | ----- |
| BMAP_NAVIGATION_CONTROL_LARGE | `0` | 标准的平移缩放控件（包括平移、缩放按钮和滑块） |
| BMAP_NAVIGATION_CONTROL_SMALL | `0` | 仅包含平移和缩放按钮 |
| BMAP_NAVIGATION_CONTROL_PAN | `0` | 仅包含平移按钮 |
| BMAP_NAVIGATION_CONTROL_ZOOM | `0` | 仅包含缩放按钮 |