微信小程序拒绝相册授权后再调用授权

//HTML
//做两个按钮，一个是判断是否授权，另一个是去设置里面打开授权
<div class="Small_imgBor" style="top:260px" v-if="saveAlbumImgOne" @click="saveAlbum">保存至相册</div>
<div class="Small_imgBor" style="top:260px" v-if="saveAlbumImgTow"@click="takeopen">保存至相册</div>
  
      
data{
	saveAlbumImgOne: true,
    saveAlbumImgTow: false,
},



//JS
//按钮一号保存图片
    saveAlbum() {
      let that = this;
      // 相册授权
      wx.getSetting({
        success(res) {
          // 进行授权检测，未授权则进行弹层授权
          if (!res.authSetting["scope.writePhotosAlbum"]) {
            wx.authorize({
              scope: "scope.writePhotosAlbum",
              success() {
                that.getCanvasImg();
              },
              // 拒绝授权时，则进入手机设置页面，可进行授权设置
              fail() {
                that.saveAlbumImgTow = true;
                that.saveAlbumImgOne = false;
              }
            });
          } else {
            // 已授权则直接进行保存图片
            that.getCanvasImg();
          }
        },
        fail(res) {
          console.log(res);
        }
      });
    },
    
     //按钮二号去到设置里面打开授权
    takeopen() {
      let that = this;
      wx.openSetting({
        success: function(data) {
          console.log("openSetting success");
          that.getCanvasImg();
          that.saveAlbumImgTow = false;
          that.saveAlbumImgOne = true;
        },
        fail: function(data) {
          console.log("openSetting fail", data);
        }
      });
    },