微信小程序 ：第五课 -- 获取地理位置

版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/qq_31653405/article/details/85783179

效果如图：

语法分割线-----------------------------

代码分割线-----------------------------

 1.首先 引入 官方获取地图的js   

安全域名设置，需要在微信公众平台添加域名地址https://apis.map.qq.com

2.在js文件中引入js

var QQMapWX = require('../../utils/qqmap-wx-jssdk.js');
var qqmapsdk;

3.编写wxml显示个布局：

<!--获取当前地理位置-->
  <view class="weizhi_view">
      <view class="weizhi_bottom" bindtap="bindKeyInput">
              <image class="weizhi_img" src="../images/cal/diliweizhi.png" ></image> 
              <text class='weizhi_info' maxlength='100' >{{province}}{{city}}{{district}}{{street_number}}</text>
      </view>
  </view>

4.给wxml添加相应参数，及自动获取的函数方法：

const app = getApp();
var QQMapWX = require('../../utils/qqmap-wx-jssdk.js');
var qqmapsdk;
Page({
  data: {
    province: '',
    city: '',
    district:'',
    street_number:'',
    latitude: '',
    longitude: ''
  },
  onLoad: function () {
    qqmapsdk = new QQMapWX({
      key: 'DQLBZ-NXWCU-B55VJ-BZF2U-NBSRV-UAFVG' //这里自己的key秘钥进行填充
    });
  },
  onShow: function () {
    let vm = this;
    vm.getUserLocation();
  },
  getUserLocation: function () {
    let vm = this;
    wx.getSetting({
      success: (res) => {
        console.log(JSON.stringify(res))
        // res.authSetting['scope.userLocation'] == undefined    表示 初始化进入该页面
        // res.authSetting['scope.userLocation'] == false    表示 非初始化进入该页面,且未授权
        // res.authSetting['scope.userLocation'] == true    表示 地理位置授权
        if (res.authSetting['scope.userLocation'] != undefined && res.authSetting['scope.userLocation'] != true) {
          wx.showModal({
            title: '请求授权当前位置',
            content: '需要获取您的地理位置，请确认授权',
            success: function (res) {
              if (res.cancel) {
                wx.showToast({
                  title: '拒绝授权',
                  icon: 'none',
                  duration: 1000
                })
              } else if (res.confirm) {
                wx.openSetting({
                  success: function (dataAu) {
                    if (dataAu.authSetting["scope.userLocation"] == true) {
                      wx.showToast({
                        title: '授权成功',
                        icon: 'success',
                        duration: 1000
                      })
                      //再次授权，调用wx.getLocation的API
                      vm.getLocation();
                    } else {
                      wx.showToast({
                        title: '授权失败',
                        icon: 'none',
                        duration: 1000
                      })
                    }
                  }
                })
              }
            }
          })
        } else if (res.authSetting['scope.userLocation'] == undefined) {
          //调用wx.getLocation的API
          vm.getLocation();
        }
        else {
          //调用wx.getLocation的API
          vm.getLocation();
        }
      }
    })
  },
  // 微信获得经纬度
  getLocation: function () {
    let vm = this;
    wx.getLocation({
      type: 'wgs84',
      success: function (res) {
        console.log(JSON.stringify(res))
        var latitude = res.latitude 
        var longitude = res.longitude
        var speed = res.speed
        var accuracy = res.accuracy + 1000;
        vm.getLocal(latitude, longitude)//根据经纬度进行获取当前地理位置信息
      },
      fail: function (res) {
        console.log('fail' + JSON.stringify(res))
      }
    })
  },
  // 获取当前地理位置
  getLocal: function (latitude, longitude) {
    let vm = this;
    qqmapsdk.reverseGeocoder({
      location: {
        latitude: latitude,
        longitude: longitude
      },
      success: function (res) {
        console.log(JSON.stringify(res));
        let province = res.result.ad_info.province
        let city = res.result.address_component.city
        let district = res.result.address_component.district
        let street_number = res.result.address_component.street_number
        vm.setData({
          province: province,
          city: city,
          district: district,
          street_number: street_number,
          latitude: latitude,
          longitude: longitude
        })

      },
      fail: function (res) {
        console.log(res);
      },
      complete: function (res) {
        // console.log(res);
      }
    });
  },
  bindKeyInput: function () {
    let vm = this;
    wx.showToast({
      title: '授权成功',
      icon: 'success',
      duration: 1000
    })
    vm.getLocation();
  }

})

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转载声明：本文为博主原创文章，未经博主允许不得转载。

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