NavigationControl 平移缩放控件

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。

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> ); 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

NavigationControlType