无法获取userinfo，反复观看视频还是未找到问题所在，还请老师帮忙看看问题出在哪里了。

var app = getApp();
Page({
data: {
remind: ‘加载中’,
angle: 0,
userInfo: {}
},
goToIndex: function () {
wx.switchTab({
url: ‘/pages/food/index’,
});
},
onLoad: function () {
wx.setNavigationBarTitle({
title: app.globalData.shopName
})
},
onShow: function () {

},
onReady: function () {
    var that = this;
    setTimeout(function () {
        that.setData({
            remind: ''
        });
    }, 1000);
    wx.onAccelerometerChange(function (res) {
        var angle = -(res.x * 30).toFixed(1);
        if (angle > 14) {
            angle = 14;
        } else if (angle < -14) {
            angle = -14;
        }
        if (that.data.angle !== angle) {
            that.setData({
                angle: angle
            });
        }
    });
},
login: function (e) {
    if (!e.detail.userInfo) {
        app.alert({'content': '登入失败，请再次点击'})
        return
    }

    var data = e.detail.userInfo
    wx.login({
        success: function (res) {
            if (!res.code) {
                app.alert({'content': '登入失败，请再次点击'})
                return
            }
            data['code'] = res.code
            wx.request({
                url: 'http://192.168.1.8:8999/api/member/login',
                header: app.getRequestHeader(),
                method: 'POST',
                data: data,
                success: function (res) {
                    if( res.data.code != 200 ){
                        app.alert( { 'content':res.data.msg } );
                        return;
                    }
                    app.setCache( "token",res.data.data.token );
                    that.goToIndex();
                }
            })
        }
    })
}

})