使用wepy 小程序授权点击取消授权失败的方案

在wepy里使用进行小程序页面授权，里面包含了用户点击取消的重新授权方案：

//auth.js
/*
* @Author: Porco_Mar
* @Date:   2018-04-11 15:49:55
* @Last Modified by:   Porco_Mar
* @Last Modified time: 2018-04-18 10:43:36
*/
import wepy from 'wepy'

export const _timer = (context) => {
  return new Promise((resolve, reject) => {
    let _timer = null;
    clearInterval(_timer);
      _timer = setInterval(() =>{
        resolve(author(context))
      },500)
      context.data.timer = _timer; 
  })
}
export const author = (context) => {
  return new Promise((resolve,reject) => {
    var that = context;
    wepy.getUserInfo({
      success: (res) =>{
        var userInfo = res.userInfo;
        that.data.userInfo = userInfo;
        resolve(res.userInfo)
      },
      fail: (res) =>{
        console.log('.......getUserInfo fail.........')
        clearInterval(context.data.timer)
        wepy.showModal({
          title: '警告',
          content: '您点击了拒绝授权,将无法正常显示个人信息,点击确定重新获取授权。',
          success:function(res){
            if (res.confirm) {
                wepy.openSetting({
                  success: (res) => {
                    if (res.authSetting["scope.userInfo"] || res.authSetting["scope.userLocation"]){////如果用户重新同意了授权登录
                      wepy.getUserInfo({
                        success:function(res){
                          resolve(res.userInfo)
                          that.$parent.globalData.userInfo = res.userInfo;
                        }
                      })
                    }
                  },fail: function(res){
                    resolve({'avatarUrl':'','nickName':'翠花'})
                    console.log('没有选择授权')
                  }
                })               
            }else{
               console.log('还是不同意授权')
            }
          }
        })
      },
      complete: function (res){
      }
    })
  })
}

let isBoolen = true;
export const location = (context) => {
  return new Promise((resolve, reject) => {
    if(context.$parent.globalData.location != null){
      resolve(context.$parent.globalData.location)
      console.log('已获取location')
    }else{
      console.log('没有获取到location ')
      wepy.getSetting({
          success(res) {
            console.log(res)
            if(!res.authSetting['scope.userLocation']) {
                wx.showModal({
                    title: '温馨提醒',
                    content: '需要获取您的地理位置才能使用小程序',
                    cancelText: '不使用',
                    confirmText: '获取位置',
                    success: function(res) {
                        if(res.confirm) {
                          getLocation(context).then((res) => {
                            // console.log(res)
                            if (res.code == 1){
                              if(isBoolen){ //第一次不执行
                                isBoolen = false;
                              }else{
                                wepy.openSetting({  //  点击自带取消定位健会调用这个面板
                                  success: (res) => {
                                    if (res.authSetting["scope.userLocation"]){////如果用户在面板重新同意了授权地理位置
                                      console.log('--有了scope.userLocation--')
                                      resolve(getLocation(context)) //点击面板后再次调用getLocation返回参数
                                    }
                                  },fail: function(res){
                                    console.log('--没有scope.userLocation--')
                                  }
                                })
                              }
                            }else{
                              resolve(getLocation(context))
                            }
                          })
                        } else if(res.cancel) {
                             //resolve(getLocation(context))
                             //不做任何操作
                        }
                    }
                })
            }                    
          }
      })
    }
    
  })
}

export const getLocation = (context) => {
  return new Promise((resolve, reject) => {
     wx.getLocation({
        type: 'wgs84',
        success: function(res) {
          var latitude = res.latitude
          var longitude = res.longitude
          var speed = res.speed
          var accuracy = res.accuracy
          context.$parent.globalData.location = {'code': 0, 'latitude':latitude, 'longitude':longitude, 'speed':speed, 'accuracy':accuracy}
          resolve(context.$parent.globalData.location)
        },
        fail: function(res){
          resolve({'code': 1, 'latitude':'', 'longitude':'', 'speed':'', 'accuracy':''})
        }
      })
  })
}






// index.wepy
import wepy from 'wepy'
import {_timer, author, location} from '../utils/auth'

  onShow() {
      let globalDt = this.$parent.globalData
      if(globalDt.userInfo.nickName && globalDt.userInfo.avatarUrl){
        this.userInfo = globalDt.userInfo;
      }else{
          this.getValue(); // 获取userInfo
      }

      if(globalDt.location === null){
          this.getLt(this); // 获取地理位置
      }else{
          console.log('当前页面获取过location了')
          //console.log(globalDt.location)
          this.location = globalDt.location;
      }
  }
  async getValue () {
      const datam = await _timer(this)
    console.log(datam)
    this.userInfo = datam;
    this.$apply();
  }
  async getLt (context) {
      const local = await location(context)
      console.log(local)
      this.location = local;
      this.$apply()
  }

来源：https://segmentfault.com/a/1190000017526582