vue微信公衆號獲取當前省市區詳細地址

1.獲取簽名，調用微信api進行位置信息授權獲取當前經緯度
2.火星經緯度轉百度經緯度
3.利用百度api轉化成對應的省市區詳細地址（這裏要注意，我們需要引入百度api，及自己的密鑰，<script type="text/javascript" src="//api.map.baidu.com/api?v=3.0&ak=自己的密鑰"></script>）

wxAddress() {
        let that = this;
        let u = navigator.userAgent;
        let isAndroid = u.indexOf('Android') > -1 || u.indexOf('Linux') > -1; //g
        let isIOS = !!u.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/); //ios終端
        let request_url = ''
        if (isAndroid) {
          this.isIOS = false;
          request_url = encodeURIComponent(location.href);
        }
        if (isIOS) {
          this.isIOS = true;
          request_url = encodeURIComponent(window.entryUrl);//這裏是解決ios路由不刷新，獲取簽名失敗的問題，具體使用見最後
        }
        let params = {
          url: request_url
        }
        let url = this.GLOBAL.API_WECHATLOGIN_GET_WECHAT_SIGN;//簽名接口
        this.$post(url, params).then((res) => {
          if (res.data.retCode == 200) {
            that.resulted = res.data.data;
            that.wx.config({ //配置微信接口
              debug: false,
              appId: that.resulted.appId,
              timestamp: that.resulted.timestamp,
              nonceStr: that.resulted.noncestr,
              signature: that.resulted.signature,
              jsApiList: [ // 所有要調用的 API 都要加到這個列表中,要調用的微信接口
                'getLocation'
              ]
            });
            that.wx.ready(function () {
              that.wx.getLocation({
                type: 'gcj02', // 默認爲wgs84的gps座標，如果要返回直接給openLocation用的火星座標，可傳入'gcj02'
                success: function(res) {
                  // that.latitude = res.latitude;
                  // that.longitude = res.longitude;
                  //火星經緯度轉百度地圖經緯度
                  let x_PI = 3.14159265358979324 * 3000.0 / 180.0;
                  var lat =Number(res.latitude);
                  var lng =Number(res.longitude);
                  var z =Math.sqrt(lng * lng + lat * lat) +0.00002 * Math.sin(lat * x_PI);
                  var theta = Math.atan2(lat, lng) + 0.000003 * Math.cos(lng * x_PI);
                  that.longitude = z*Math.cos(theta) + 0.0065;
                  that.latitude = z*Math.sin(theta) + 0.006; 
                  that.detailAddress();
                },
                fail: function(err) {
                  that.Toast({
                    message: err,
                    position: 'center',
                    duration: 2000
                  })
                }
              });
            });
            that.wx.error(function (res) {
              that.Toast({
                message: res,
                position: 'center',
                duration: 5000
              })
            });
          } else {
            that.Toast({
              message: res.data.message,
              position: 'center',
              duration: 5000
            })
          }
        })
    },
   detailAddress(){
        let that=this;
        let point = new BMap.Point(that.longitude, that.latitude)
        let gc = new BMap.Geocoder()
        gc.getLocation(point, function(rs){
          let addComp = rs.addressComponents
          let province = addComp.province
          let city = addComp.city
          let district = addComp.district
          let street = addComp.street
          console.log(rs.addressComponents)
          that.address=province+city+district+street
          console.log(that.address)        
        })
    },

解決ios路由不刷新，獲取簽名失敗的問題：

router.afterEach((to, from) => {// true 時 爲 IOS 設備
  if (window.__wxjs_is_wkwebview) {  // IOS
    if (window.entryUrl == '' || window.entryUrl == undefined) { //記錄該地址config配置時使用
      if (process.env.NODE_ENV == 'development') {
        var url = `http://m1.baidu.com${to.fullPath}`
      } else if (process.env.NODE_ENV == 'production') {
        var url = `http://m2.baidu.com${to.fullPath}`
      }
      window.entryUrl = url
    }
  }
})