微信小程序用户授权弹窗 拒绝时引导用户重新授权实现

<button open-type="getUserInfo" bindgetuserinfo="getUserInfo"> 授权获取头像昵称 </button>

 getUserInfo: function(e) {
  let that = this;
  // console.log(e)
  // 获取用户信息
  wx.getSetting({
   success(res) {
    // console.log("res", res)
    if (res.authSetting['scope.userInfo']) {
     console.log("已授权=====")
     // 已经授权，可以直接调用 getUserInfo 获取头像昵称
     wx.getUserInfo({
      success(res) {
       console.log("获取用户信息成功", res)
       that.setData({
        name: res.userInfo.nickName
       })
      },
      fail(res) {
       console.log("获取用户信息失败", res)
      }
     })
    } else {
     console.log("未授权=====")
     that.showSettingToast("请授权")
    }
   }
  })
 },

 // 打开权限设置页提示框
 showSettingToast: function(e) {
  wx.showModal({
   title: '提示！',
   confirmText: '去设置',
   showCancel: false,
   content: e,
   success: function(res) {
    if (res.confirm) {
     wx.navigateTo({
      url: '../setting/setting',
     })
    }
   }
  })
 }

<!--index.wxml-->
<button open-type="getUserInfo" bindgetuserinfo="getUserInfo"> 授权获取头像昵称 </button>
<text>{{name}}</text>

//index.js
Page({
 getUserInfo: function(e) {
  let that = this;
  // console.log(e)
  // 获取用户信息
  wx.getSetting({
   success(res) {
    // console.log("res", res)
    if (res.authSetting['scope.userInfo']) {
     console.log("已授权=====")
     // 已经授权，可以直接调用 getUserInfo 获取头像昵称
     wx.getUserInfo({
      success(res) {
       console.log("获取用户信息成功", res)
       that.setData({
        name: res.userInfo.nickName
       })
      },
      fail(res) {
       console.log("获取用户信息失败", res)
      }
     })
    } else {
     console.log("未授权=====")
     that.showSettingToast("请授权")
    }
   }
  })
 },

 // 打开权限设置页提示框
 showSettingToast: function(e) {
  wx.showModal({
   title: '提示！',
   confirmText: '去设置',
   showCancel: false,
   content: e,
   success: function(res) {
    if (res.confirm) {
     wx.navigateTo({
      url: '../setting/setting',
     })
    }
   }
  })
 },
})