React使用高德地圖的實現示例(react-amap)
pc版React重構,使用到瞭高德地圖。搜瞭資料,發現有一個針對React進行封裝的地圖插件react-amap。官方網址:https://elemefe.github.io/react-amap/components/map,有興趣的可以看下裡面的API。
react-amap 安裝
1、使用npm進行安裝,目前是1.2.8版本:
cnpm i react-amap
2、直接使用sdn方式引入
<script src="https://unpkg.com/[email protected]/dist/react-amap.min.js"></script>
react-amap 使用
import React,{Component} from 'react' import {Map,Marker} from 'react-amap' const mapKey = '1234567809843asadasd' //需要自己去高德官網上去申請 class Address extends Component { constructor (props) { super (props) this.state = { } } render(){ return ( <div style={{width: '100%', height: '400px'}}> <Map amapkey={mapKey} zoom={15}></Map> </div> ) } } export default Address
這樣的話,就會初始化一個簡單的地圖。
實際開發過程中,你會有比較復雜的使用場景。比如需要標記點、對地圖進行縮放、能夠定位到當前位置、位置搜索等等功能。需求大致如下圖所示:
這樣的話,那就需要引入插件以及組件的概念瞭。
ToolBar、Scale插件
<Map plugins={["ToolBar", 'Scale']}></Map>
Marker 地圖標記
<Map> <Marker position={['lng','lat']}></Marker> </Map>
InfoWindow 窗體組件
<Map> <InfoWindow position={this.state.position} visible={this.state.visible} isCustom={false} content={html} size={this.state.size} offset={this.state.offset} events={this.windowEvents} /> </Map>
通過 created 事件實現更高級的使用需求,在高德原生實例創建成功後調用,參數就是創建的實例;獲取到實例之後,就可以根據高德原生的方法對實例進行操作:
const events = { created: (instance) => { console.log(instance.getZoom())}, click: () => { console.log('You clicked map') } } <Map events={events} />
實現一個較為復雜地址搜索,地址標記、逆地理解析代碼:
import React , { Component } from 'react' import { Modal , Input } from 'antd' import styles from './index.scss' import classname from 'classnames' import { Map ,Marker,InfoWindow} from 'react-amap' import marker from 'SRC/statics/images/signin/marker2.png' const mapKey = '42c177c66c03437400aa9560dad5451e' class Address extends Component { constructor (props) { super(props) this.state = { signAddrList:{ name:'', addr:'', longitude: 0, latitude: 0 }, geocoder:'', searchContent:'', isChose:false } } //改變數據通用方法(單層) changeData = (value, key) => { let { signAddrList } = this.state signAddrList[key] = value this.setState({ signAddrList:signAddrList }) } placeSearch = (e) => { this.setState({searchContent:e}) } searchPlace = (e) => { console.log(1234,e) } componentDidMount() { } render() { let { changeModal , saveAddressDetail } = this.props let { signAddrList } = this.state const selectAddress = { created:(e) => { let auto let geocoder window.AMap.plugin('AMap.Autocomplete',() => { auto = new window.AMap.Autocomplete({input:'tipinput'}); }) window.AMap.plugin(["AMap.Geocoder"],function(){ geocoder= new AMap.Geocoder({ radius:1000, //以已知坐標為中心點,radius為半徑,返回范圍內興趣點和道路信息 extensions: "all"//返回地址描述以及附近興趣點和道路信息,默認"base" }); }); window.AMap.plugin('AMap.PlaceSearch',() => { let place = new window.AMap.PlaceSearch({}) let _this = this window.AMap.event.addListener(auto,"select",(e) => { place.search(e.poi.name) geocoder.getAddress(e.poi.location,function (status,result) { if (status === 'complete'&&result.regeocode) { let address = result.regeocode.formattedAddress; let data = result.regeocode.addressComponent let name = data.township +data.street + data.streetNumber _this.changeData(address,'addr') _this.changeData(name,'name') _this.changeData(e.poi.location.lng,'longitude') _this.changeData(e.poi.location.lat,'latitude') _this.setState({isChose:true}) } }) }) }) }, click:(e) => { const _this = this var geocoder var infoWindow var lnglatXY=new AMap.LngLat(e.lnglat.lng,e.lnglat.lat); let content = '<div>定位中....</div>' window.AMap.plugin(["AMap.Geocoder"],function(){ geocoder= new AMap.Geocoder({ radius:1000, //以已知坐標為中心點,radius為半徑,返回范圍內興趣點和道路信息 extensions: "all"//返回地址描述以及附近興趣點和道路信息,默認"base" }); geocoder.getAddress(e.lnglat,function (status,result) { if (status === 'complete'&&result.regeocode) { let address = result.regeocode.formattedAddress; let data = result.regeocode.addressComponent let name = data.township +data.street + data.streetNumber _this.changeData(address,'addr') _this.changeData(name,'name') _this.changeData(e.lnglat.lng,'longitude') _this.changeData(e.lnglat.lat,'latitude') _this.setState({isChose:true}) } }) }); } } return ( <div> <Modal visible={true} title="辦公地點" centered={true} onCancel={() => changeModal('addressStatus',0)} onOk={() => saveAddressDetail(signAddrList)} width={700}> <div className={styles.serach}> <input id="tipinput" className={styles.searchContent} onChange={(e) => this.placeSearch(e.target.value)} onKeyDown={(e) => this.searchPlace(e)} /> <i className={classname(styles.serachIcon,"iconfont icon-weibiaoti106")}></i> </div> <div className={styles.mapContainer} id="content" > { this.state.isChose ? <Map amapkey={mapKey} plugins={["ToolBar", 'Scale']} events={selectAddress} center={ [ signAddrList.longitude,signAddrList.latitude] } zoom={15}> <Marker position={[ signAddrList.longitude,signAddrList.latitude]}/> </Map> : <Map amapkey={mapKey} plugins={["ToolBar", 'Scale']} events={selectAddress} zoom={15}> <Marker position={[ signAddrList.longitude,signAddrList.latitude]}/> </Map> } </div> <div className="mar-t-20">詳細地址: <span className="cor-dark mar-l-10">{signAddrList.addr}</span> </div> </Modal> </div> ) } } export default Address
到此這篇關於React使用高德地圖的實現示例(react-amap)的文章就介紹到這瞭,更多相關React 高德地圖內容請搜索WalkonNet以前的文章或繼續瀏覽下面的相關文章希望大傢以後多多支持WalkonNet!
推薦閱讀:
- None Found