小程序获取经纬度

1、判断是否打开定位服务，未打开就弹窗提示

let vm = this
    wx.getSetting({
      success: (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
        // 拒绝授权后再次进入重新授权
        if (res.authSetting['scope.userLocation'] != undefined && res.authSetting['scope.userLocation'] != true) {
          // console.log('authSetting:status:拒绝授权后再次进入重新授权', res.authSetting['scope.userLocation'])
          wx.showModal({
            title: '',
            content: '需要获取你的地理位置，请确认授权',
            success: function (res) {
              if (res.cancel) {
                wx.showToast({
                  title: '拒绝授权',
                  icon: 'none'
                })
                vm.setData({'address': '获取失败！'})
                setTimeout(() => {
                  wx.navigateBack()
                }, 1500)
              } else if (res.confirm) {
                wx.openSetting({
                  success: function (dataAu) {
                    // console.log('dataAu:success', dataAu)
                    if (dataAu.authSetting["scope.userLocation"] == true) {
                      //再次授权，调用wx.getLocation的API
                      vm.getLocation(dataAu)
                    } else {
                      wx.showToast({
                        title: '授权失败',
                        icon: 'none'
                      });
                      setTimeout(() => {
                        wx.navigateBack()
                      }, 1500)
                    }
                  }
                })
              }
            }
          })
        }
        // 初始化进入，未授权
        else if (res.authSetting['scope.userLocation'] == undefined) {
          // console.log('authSetting:status:初始化进入，未授权', res.authSetting['scope.userLocation'])
          //调用wx.getLocation的API
          vm.getLocation(res)
        }
        // 已授权
        else if (res.authSetting['scope.userLocation']) {
          // console.log('authSetting:status:已授权', res.authSetting['scope.userLocation'])
          //调用wx.getLocation的API
          vm.getLocation(res)
        }
      }
    })

2、获取经纬度

let vm = this
    wx.getLocation({
      type: "wgs84",
      success: function (res) {
        let latitude = res.latitude;
        let longitude = res.longitude;
      },
      fail: function (res) {
        if (res.errMsg === 'getLocation:fail:auth denied') {
          wx.showToast({
            title: '拒绝授权',
            icon: 'none'
          })
          setTimeout(() => {
            wx.navigateBack()
          }, 1500)
          return
        }
        if (!userLocation || !userLocation.authSetting['scope.userLocation']) {
          vm.getUserLocation()
        } else if (userLocation.authSetting['scope.userLocation']) {
          wx.showModal({
            title: '',
            content: '请在系统设置中打开定位服务',
            showCancel: false,
            success: result => {
              if (result.confirm) {
                wx.navigateBack()
              }
            }
          })
        } else {
          wx.showToast({
            title: '授权失败',
            icon: 'none'
          })
          setTimeout(() => {
            wx.navigateBack()
          }, 1500)
        }
      }
    })

需在app.json文件中添加如下配置：

 "permission": {
    "scope.userLocation": {
      "desc": "请确认授权"
    }
  }