提升用户体验，微信小程序“授权失败”场景的优雅处理

// weixin-weapp-auth-failed.html
// 是否为空对象
function isEmptyObject(e) {
    var t;
    for (t in e)
        return !1;
    return !0
}

// weixin-weapp-auth-failed.html
var that = this;
        //调用应用实例的方法获取全局数据
        this.getUserInfo(function (userInfo) {
            //更新用户数据
            that.setData({
                userInfo: userInfo
            })
        });

// weixin-weapp-auth-failed.html
// 检测授权状态
checkSettingStatu: function(cb) {
        var that = this;
        // 判断是否是第一次授权，非第一次授权且授权失败则进行提醒
        wx.getSetting({
            success: function success(res) {
                console.log(res.authSetting);
                var authSetting = res.authSetting;
                if (util.isEmptyObject(authSetting)) {
                    console.log('首次授权');
                } else {
                    console.log('不是第一次授权', authSetting);
                    // 没有授权的提醒
                    if (authSetting['scope.userInfo'] === false) {
                        wx.showModal({
                            title: '用户未授权',
                            content: '如需正常使用阅读记录功能，请按确定并在授权管理中选中“用户信息”，然后点按确定。最后再重新进入小程序即可正常使用。',
                            showCancel: false,
                            success: function (res) {
                                if (res.confirm) {
                                    console.log('用户点击确定')
                                    wx.openSetting({
                                        success: function success(res) {
                                            console.log('openSetting success', res.authSetting);
                                        }
                                    });
                                }
                            }
                        })
                    }
                }
            }
        });
    }

// weixin-weapp-auth-failed.html
onShow: function(){
        this.checkSettingStatu();
    }