百度地图api的使用

utils/handleLocation/index.js

+/**
+ * 使用百度地图api 获取当前用户的位置
+ * */
+export default function getLocation(){
+    if(typeof BMap == 'undefined'){
+      console.log('请先加载百度api js 文件: http://api.map.baidu.com/api?v=2.0&ak=qWnwdKnruRGnojAtsZ7Cfb2g');
+      return false;
+    }
+    const map = new BMap.Map('map');
+    map.centerAndZoom(new BMap.Point(121.491, 31.223), 11);
+    const geolocation = new BMap.Geolocation();
+    geolocation.getCurrentPosition(function(r){
+      if(this.getStatus() === 0) {
+        getAddress(r.point);
+        let mk = new BMap.Marker(r.point);
+        map.addOverlay(mk);
+        map.panTo(r.point);
+      }else{
+        alert('发生错误!');
+      }
+    },{enableHighAccuracy: true});
+
+    // 通过坐标 拿取地址名字
+    function getAddress(point) {
+      const lng = point.lng; // 经度
+      const lat = point.lat; // 纬度
+      let gc = new BMap.Geocoder();
+      gc.getLocation(point,function(res){
+        let  formValues = {};
+        let status = 0;
+        // 判断范围
+        const zoneCaculate = (origin,r) => {
+          let currR = Math.sqrt(Math.pow(origin.lng - lng,2) + Math.pow(origin.lat - lat,2))
+          if(currR <= r) {
+            return 1;
+          }else{
+            return 0
+          }
+        };
+
+        // 判断时间
+        const caculateTime = (startTime, endTime) => {
+          let currTime = new Date().getTime();
+          if(startTime < currTime && currTime < endTime) {
+            return 1;
+          }else{
+            return 0;
+          }
+        };
+
+        // 处理状态
+        const isZone = zoneCaculate({lng: 104, lat: 30},1000);
+        const isTime = caculateTime(new Date().getTime() - 10000,new Date().getTime() + 10000);
+        if(isZone === 0) status = 0;
+        if(isZone === 1 && isTime === 1) status = 2;
+        if(isZone === 1 && isTime === 0) status = 1;
+        // 更改状态
+        formValues.address = res.address;
+        formValues.lng = lng;
+        formValues.lat = lat;
+        return formValues;
+      });
+    }
+}