注:本文基于上一篇文章【 Vue-Cli 3.0 中配置高德地图 】 ,采用直接引入高德 SDK 的方式来使用高德地图api
一、效果图
二、组件要实现的功能
1. 如果有传入坐标点,则定位到坐标点
2. 如果没有传入坐标点,则定位到当前所在位置
3. 定位成功要在右侧显示经纬度和地址
4. 可以通过拖动 标记 来调整定位点
5. 标记 拖动后,右侧要显示拖动后的经纬度和地址
6. 点击确定按钮,返回最后的坐标点和地名给父组件
三、 组件实现具体代码
<template> <div class="map-box" :style="{ width, height: height }"> <div id="amap" class="amap"></div> <div class="detail"> <p>经度:{{point ? point[0] : '-'}}</p> <p>纬度:{{point ? point[1] : '-'}}</p> <p>地址:{{address}}</p> <button size="mini" class="btnmap" @click="commit">确定</button> </div> </div> </template> <script> import AMap from 'AMap' export default { props: { { type: String, default: '100%' }, height: { type: String, default: '400px' }, lnglat: { type: Array, validator: (value) => { return value.length === 2 } } }, data () { return { address: '', point: this.lnglat } }, mounted () { this.init(this.point) }, methods: { // 初始化 init (lnglat) { // 地图实例对象 (amap 为容器的id) let amap = new AMap.Map('amap', { resizeEnable: true, zoom: 15 }) // 注入插件(定位插件,地理编码插件) amap.plugin(['AMap.Geolocation', 'AMap.Geocoder']) // 定位 this.currentPosition(amap, lnglat) }, currentPosition (map, lnglat) { if (lnglat) { // 有传入坐标点,直接定位到坐标点 map.setCenter(lnglat) this.addMark(map, lnglat) // 获取地址 this.getAddress(lnglat) } else { // 没有传入坐标点,则定位到当前所在位置 let geolocation = new AMap.Geolocation({ enableHighAccuracy: true, timeout: 10000, zoomToAccuracy: true, buttonPosition: 'RB' }) geolocation.getCurrentPosition((status, result) => { if (status === 'complete') { let points = [result.position.lng, result.position.lat] map.setCenter(points) // 设置中心点 this.addMark(map, points) // 添加标记 // 存下坐标与地址 this.point = points this.getAddress(points) } else { console.log('定位失败', result) } }) } }, // 添加标记 addMark (map, points) { let marker = new AMap.Marker({ map: map, position: points, draggable: true, // 允许拖动 cursor: 'move', raiseOnDrag: true }) marker.on('dragend', (e) => { let position = marker.getPosition() // 存下坐标与地址 this.point = [position.lng, position.lat] this.getAddress([position.lng, position.lat]) }) }, // 根据坐标返回地址(逆地理编码) getAddress (points) { let geocoder = new AMap.Geocoder({ radius: 1000 }) geocoder.getAddress(points, (status, result) => { if (status === 'complete' && result.regeocode) { this.address = result.regeocode.formattedAddress } }) }, commit () { this.$emit('location', this.point, this.address) } } } </script> <style lang="scss" scoped> .map-box { box-sizing: border-box; background-color: #ddd; padding: 15px; &:after { content: ''; display: block; clear: both; } .amap, .detail { float: left; height: 100%; } .amap { width: 75%; } .detail { width: 25%; background-color: #fff; padding: 0 15px; border-left: 1px solid #eee; box-sizing: border-box; word-wrap: break-word; } .btnmap { width: 100%; margin: 30px 0 0 0; padding: 5px 0; color: #fff; cursor: pointer; background-color: #409eff; border: none; border-radius: 3px; &:hover { background-color: #66b1ff; } } } </style>
四、调用组件
<template> <div class="box"> <xmap width="700px" height="500px" :lnglat="[114.433703, 30.446243]" @location="location"></xmap> </div> </template> <script> import xmap from '@/components/map' export default { components: { xmap }, methods: { location(point, address) { alert(`坐标:${point[0]},${point[1]} - 地址:${address}`) } } } </script>