GeolocationControl 定位控件
负责进行地图定位的控件,使用html5浏览器定位功能。你也可以使用 Map
组件 widget
属性来设置控件更方便。
import { GeolocationControl, useGeolocationControl } from '@uiw/react-baidu-map';
// 或者单独安装使用
import GeolocationControl, { useGeolocationControl } from '@uiw/react-baidu-map-geolocation-control';
基本用法
import ReactDOM from 'react-dom';
import React, { useState, useRef } from 'react';
import { Map, APILoader, GeolocationControl } from '@uiw/react-baidu-map';
const Example = () => {
const [show, setShow] = useState(true);
return (
<>
<button onClick={() => setShow(!show)}>
{show ? '关闭' : '开启'}
</button>
<Map zoom={13} style={{ height: 350 }}>
{show && (
<GeolocationControl
onLocationSuccess={(e) => {
let address = '';
address += e.addressComponent.province;
address += e.addressComponent.city;
address += e.addressComponent.district;
address += e.addressComponent.street;
address += e.addressComponent.streetNumber;
alert("当前定位地址为:" + address);
console.log('address', address, e);
}}
/>
)}
<GeolocationControl
offset={new BMap.Size(40, 40)}
anchor={BMAP_ANCHOR_TOP_RIGHT}
visiable={show}
onLocationSuccess={(opt) => {
console.log('opt', opt);
}}
onLocationError={(StatusCode) => {
console.log('StatusCode', StatusCode);
}}
/>
</Map>
</>
);
}
ReactDOM.render((
<div style={{ width: '100%' }}>
<APILoader akay="GTrnXa5hwXGwgQnTBG28SHBubErMKm3f">
<Example />
</APILoader>
</div>
), _mount_);
使用 hooks
geolocationControl
, setGeolocationControl
import { useRef, useEffect, useState } from 'react';
import { Map, APILoader, useMap, useGeolocationControl } from '@uiw/react-baidu-map';
const Example = () => {
const divElm = useRef(null);
const [show, setShow] = useState(true);
const { setContainer, map } = useMap();
const { geolocationControl } = useGeolocationControl({
map, anchor: BMAP_NAVIGATION_CONTROL_LARGE, visiable: show
});
useEffect(() => {
if (divElm.current && !map) {
setContainer(divElm.current);
}
}, [map]);
return (
<>
<button onClick={() => setShow(!show)}>
{show ? '关闭' : '开启'}
</button>
<div ref={divElm} style={{ height: 350 }} />
</>
);
}
const Demo = () => (
<div style={{ width: '100%' }}>
<APILoader akay="GTrnXa5hwXGwgQnTBG28SHBubErMKm3f">
<Example />
</APILoader>
</div>
);
ReactDOM.render(<Demo />, _mount_);
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 |
- |
showAddressBar |
是否显示定位信息面板。默认显示定位信息面板。 |
boolean |
- |
enableAutoLocation |
添加控件时是否进行定位。默认添加控件时不进行定位。 |
boolean |
- |
locationIcon |
可自定义定位中心点的 Icon 样式。 |
Icon |
- |
事件
参数 |
说明 |
类型 |
onLocationSuccess |
定位成功后触发此事件 |
(event: { point: BMap.Point, addressComponent: BMap.AddressComponent }) => void; |
onLocationError |
定位失败后触发此事件 |
(event: { statusCode: BMap.StatusCode }) => void; |
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 |
1 |
仅包含平移和缩放按钮 |
BMAP_NAVIGATION_CONTROL_PAN |
2 |
仅包含平移按钮 |
BMAP_NAVIGATION_CONTROL_ZOOM |
3 |
仅包含缩放按钮 |