laundry/app.js

// app.js
var projectMode=1;//0代表开发模式（本地环境），1代表测试模式（线上测试环境）,2代表线上模式（正式运行环境）
var info=wx.getSystemInfoSync();
if(info.platform!="devtools"&&projectMode==0){projectMode=1}
var envVersion = `${__wxConfig.envVersion}`;//develop	开发版，trial	体验版，release	正式版
if(envVersion=='release'){projectMode=2}
import api from './utils/api'
App({
  onLaunch() {
    // 展示本地存储能力
    const logs = wx.getStorageSync('logs') || []
    logs.unshift(Date.now())
    wx.setStorageSync('logs', logs)
    var that=this;

    this.getLocation();



    // 登录

    wx.checkSession({
      success: res=> {
        console.log(res)
      },
      fail:(res)=>{
      }
    })
  

    this.globalData.btnInfo = wx.getMenuButtonBoundingClientRect()
    console.log(this.globalData.btnInfo,'按钮信息');
    
  },
  globalData: {
    userInfo: null,
    btnInfo:null,
    baseAppUrl: projectMode==2 ? 'https://wash.nanodreamtech.com/':(projectMode==1 ?'https://wash.nanodreamtech.com/':'http://127.0.0.1:8000/'),
    location:""
  },
  api:api,

  getLocation(e){
    var that=this;
    wx.startLocationUpdateBackground({
        success(res) {
          console.log('开启后台定位', res)
          wx.onLocationChange(function(res) {
            console.log('location change', res)
            that.globalData.location=res;


   
            that.login(res.latitude,res.longitude).then(function(res){
              if(res.code!=200){
                
              }


            },function(err){

            })


          })
        },
        fail(res) {
          console.log('开启后台定位失败', res)
        }
      })
},

  login(lat="",lng=""){
    var that=this;
   return new Promise((resolve,reject)=>{

    wx.checkSession({
      success: (res) => {

      },
      fail:(res)=>{
        wx.login({
          success: res => {
            // 发送 res.code 到后台换取 openId, sessionKey, unionId
            that.api.useApi(that.globalData.baseAppUrl+"api/login",{
              code:res.code,
              lat:lat,
              lng:lng,
              appid:wx.getAppBaseInfo().host.appId
            },"post").then(function(res){
              wx.showLoading({
                title: '登录中',
              })
              if(res.code!=200){
                setTimeout(function(){
                  that.login(lat,lng);
                },1000);
              }else{
                wx.hideLoading();
                resolve(res);
              }
          
    
            
            }).catch(function(err){
              console.log(222);
            })
          }
        })
      }

    })



   
   })
  }

})