公司pc端有一个地图选址及查看地图功能,这个是几个月前就开发完了,最近完善了一下,先上最终效果吧。
选择省市区填写详细地址进入点击确认坐标打开地图弹框
根据传入的地址查询到了地址可以查看更多地址,可以点击地图查看周边,点击确认,获取坐标。
这是查看地址
好了,上实现代码。
<template>
<el-dialog title=""
:close-on-click-modal="false"
:destroy-on-close="true"
:visible.sync="visibleVal"
:modal="modal" width="800px"
class="x-ui-modal map__dialog">
<div id="container"></div>
<div class="poi__list" ref="scrollWrap" v-if="lists.length">
<div class="ul">
<div class="address-item"
:class="nearbyIndex === choiceIndex ? 'active' : ''"
@click.stop="choiceAddress(nearbyIndex)"
v-for="(nearby, nearbyIndex) in lists" :key="nearbyIndex">
<div class="icon"></div>
<div class="text">
<div class="name" :title="nearby.name">{{nearby.name | ellipsis}}</div>
<div class="address" :title="nearby.address">{{nearby.address | ellipsis}}</div>
</div>
</div>
<div v-show="bottomLoadingShow"><Loading /></div>
<div v-show="bottomLineShow"><BottomLine :text="'已无更多数据,点击地图\n任意一处可以查看周边'"/></div>
<div v-show="moreShow" @click="loadingMore"><BottomLine :text="'上拉或点我查看更多'" style="cursor: pointer;" /></div>
</div>
</div>
<div
v-if="isEdit"
class="city__name"
:title="`您查询的${customerName ? '客户及地址' : '地址'}:${searchKwords}`">
<el-input
v-model="searchKwords"
disabled />
</div>
<template v-if="isEdit">
<div class="main__footer">
<el-button
@click="onCloseModal()"
class="x-ui-btn add__cancel"
size="medium">取消</el-button>
<el-button
@click="onSubmit()"
class="x-ui-btn add__submit"
type="primary"
size="medium">确认</el-button>
</div>
</template>
<template v-else>
<div class="main__footer">
<el-button
@click="onCloseModal()"
class="x-ui-btn add__cancel"
size="medium">关闭</el-button>
</div>
</template>
</el-dialog>
</template>
以上是dom,用的是element-ui的dialog。
进入弹框后,编辑加载需要用到的地图插件,AMap.Geocoder和AMap.PlaceSearch,因为一开始做这个是时候,单独使用了一种AMap.Geocoder,很多高德地图上能查到的地址都定位不到,于是查看了文档的常见问题,里面的描述就是:“高德地图的搜索是复合型搜索......位置搜索的研发中,可以先进行地址解析,再进行关键词搜索,以得到更优的结果。” 查看则直接根据外部传入的经纬度定位,初始化地图。当然我这里是在保证AMap和AMapUI都已经加载到的情况下再做的,否则就会报错,我用了比较笨的办法,就是定时器不断执行加载的代码,然后在这里一旦两个都有了,就停止定时器,比较笨的办法了。
下面就是编辑坐标时的逻辑了
interval() {
this.timer = setInterval(function() {
this.awaitPlaceSearch();
}.bind(this), 50)
},
awaitPlaceSearch() {
if(this.placeSearch && this.geoCoder) {
clearInterval(this.timer);
this.isUseNearBy = false;
this.placeSearch.search(this.handleCityName, (status, result) => {
if (status === 'complete') {
if(result.poiList.pois.length) {
if(result.poiList.pois.length % this.pageSize !== 0) {
this.isUseNearBy = true;
this.bottomLineShow = true;
} else {
this.isUseNearBy = false;
this.bottomLineShow = false;
}
const geos = result.poiList.pois[0].location;
this.center = [geos.lng, geos.lat];
this.getAreaInfo('location', (res) => {
this.lists = result.poiList.pois//将查询到的地点赋值
this._initScroll();
this.getAddress(0);
this.createdMap([this.ruleForm.long, this.ruleForm.lat]);
this.addMarker();
})
} else {
if(result.cityList && result.cityList.length > 1) {
this.lists = [];
this.onCloseModal();
this.$message.info(`当前搜索地址在${result.cityList.length}个城市有若干结果,请明确后再搜索`);
} else {
this.lists = [];
this.onCloseModal();
this.$message.info('未能查询到该地址,请更换关键字查询');
}
}
} else if(status === 'no_data') {
this.$message.warning(`您输入的地址“${this.cityName}”,未查询到相关信息`);
this.getAreaInfo('address', (res) => {
this.lists = [
{
location: {
lng: res.geocodes[0].location.lng,
lat: res.geocodes[0].location.lat,
},
name: res.geocodes[0].formattedAddress,
address: '',
}
]
this.center = [res.geocodes[0].location.lng, res.geocodes[0].location.lat]
this._initScroll();
this.getAddress(0);
this.createdMap([this.ruleForm.long, this.ruleForm.lat]);
this.addMarker();
this.isUseNearBy = true;
this.bottomLineShow = true;
});
} else {
this.fixedPosition();//精准定位或IP地址定位
}
})
}
},
当然也是在保证this.placeSearch和this.geoCoder(即AMap.Geocoder和AMap.PlaceSearch)都加载到,同样也是上面说的笨办法。我是先用AMap.PlaceSearch.search方法,通过关键字查询传入的地址,如果查询到,则确定新的地图中心点经纬度,再通过AMap.Geocoder.getAddress方法传入新的地图中心点经纬度,解析出省市区信息,也可能关键字查询不明确(未明确省市区),比如只写了xx路,就有可能在全国多处都有结果,则会关闭弹框,提示明确后再查询,还可能关键字根本就查询不到,AMap.PlaceSearch.search返回no_data,则传入关键字使用AMap.Geocoder.getLocation方法,解析关键字所在城市,总之这里的逻辑就是AMap.Geocoder和AMap.PlaceSearch搭配使用。此处this.getAreaInfo方法是解析地址省市区的方法,设置了一个回调函数作为参数:
//依赖高德该接口获得省市区信息
getAreaInfo(type, callback) {
if(type === 'address') { // 在编辑的情况下通过地址名称查询
this.geoCoder.getLocation(this.handleCityName, (status, result) => {
if (status === 'complete' && result.geocodes.length) {
this.ruleForm.regeocode.adcode = result.geocodes[0].adcode
this.ruleForm.regeocode.province = result.geocodes[0].addressComponent.province
this.ruleForm.regeocode.city = result.geocodes[0].addressComponent.city == '' ? result.geocodes[0].addressComponent.province : result.geocodes[0].addressComponent.city
this.ruleForm.regeocode.district = result.geocodes[0].addressComponent.district;
callback(result);
} else if(status === 'no_data') {
this.lists = [];
this.onCloseModal();
this.$message.info('未能查询到该地址,请更换关键字查询');
} else {
this.fixedPosition();//精准定位或IP地址定位
}
});
} else if(type === 'location') { // 在查看的情况下通过经纬度查询
this.geoCoder.getAddress(this.center, (status, result) => {
if (status === 'complete' && result.regeocode && result.regeocode.addressComponent) {
this.ruleForm.regeocode.adcode = result.regeocode.addressComponent.adcode
this.ruleForm.regeocode.province = result.regeocode.addressComponent.province
this.ruleForm.regeocode.city = result.regeocode.addressComponent.city == '' ? result.regeocode.addressComponent.province : result.regeocode.addressComponent.city
this.ruleForm.regeocode.district = result.regeocode.addressComponent.district;
callback(result);
} else {
this.fixedPosition();//精准定位或IP地址定位
}
});
}
},
以上在获取到地址时都会设置为一个地址列表,设置在地图左侧,供用户选择,滚动使用better-scroll,可以上拉加载进行分页,这里不展开说了。
通过以上步骤,大部分情况下都能查询到精确的关键字,一部分高德没有收录的企业信息,也能定位到所在街道乡镇省市区。此外还在点击地图的时候触发了AMap.PlaceSearch.searchNearBy方法查询鼠标点击处的周边,作为补充:
// 查看更多,此方法也给上拉加载使用
searchMore(e) {
if(e) {
this.isUseNearBy = true;
this.placeSearch.opt.pageIndex = 1;
this.center = [e.lnglat.getLng(), e.lnglat.getLat()];
} else {
this.placeSearch.opt.pageIndex += 1;
}
this.geoCoder.getAddress(this.center, (status, result) => {
if (status === 'complete' && result.info === 'OK') {
let addressComponent = result.regeocode.addressComponent;
this.ruleForm.regeocode.adcode = addressComponent.adcode
this.ruleForm.regeocode.province = addressComponent.province
this.ruleForm.regeocode.city = addressComponent.city == '' ? addressComponent.province : addressComponent.city
this.ruleForm.regeocode.district = addressComponent.district;
let cityName = this.isUseNearBy ? '' : this.handleCityName;
if(this.isUseNearBy) {
this.placeSearch.searchNearBy(cityName, this.center, 1000, (status, result) => {
this.searchCallBack(status, result, e)
});
} else {
this.placeSearch.search(cityName, (status, result, e) => {
this.searchCallBack(status, result)
});
}
} else {
this.emptyLocationData();
}
})
},
searchCallBack(status, result, event) {
if (status === 'complete' && result.poiList.pois.length) {
if(event) {
this.lists = result.poiList.pois;
if(this.lists.length % this.pageSize !== 0) {
this.bottomLineShow = true;
} else {
this.bottomLineShow = false;
}
this.getAddress(0);
if(this.scroll) {
this.scroll.scrollTo(0, 0);
this.scroll.finishPullUp();
} else {
this._initScroll();
}
this.addMarker();
} else {
this.lists = concat(this.lists, result.poiList.pois);
if(this.lists.length % this.pageSize !== 0) {
this.bottomLineShow = true;
} else {
this.bottomLineShow = false;
}
this.originalStatus();
}
} else {
this.bottomLineShow = true;
}
},
主要的部分就是上面这些,还有一些里面用到的方法,我截几张图吧,第一次写文章,写的比较乱。
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