app.js

//app.js
App({
  onLaunch: function () {
    // 展示本地存储能力
    var logs = wx.getStorageSync('logs') || []
    logs.unshift(Date.now())
    wx.setStorageSync('logs', logs)
    wx.getSystemInfo({
      success: e => {
        console.log('System', e.statusBarHeight)
        this.globalData.StatusBar = e.statusBarHeight;
        let custom = wx.getMenuButtonBoundingClientRect();
        console.log('custom',custom)
        this.globalData.Custom = custom;
        this.globalData.CustomBar = custom.bottom + custom.top - e.statusBarHeight;
      }
    })
    // 登录
    wx.login({
      success: res => {
        // 发送 res.code 到后台换取 openId, sessionKey, unionId
      }
    })
    // 获取用户信息
    wx.getSetting({
      success: res => {
        if (res.authSetting['scope.userInfo']) {
          // 已经授权，可以直接调用 getUserInfo 获取头像昵称，不会弹框
          wx.getUserInfo({
            success: res => {
              // 可以将 res 发送给后台解码出 unionId
              this.globalData.userInfo = res.userInfo

              // 由于 getUserInfo 是网络请求，可能会在 Page.onLoad 之后才返回
              // 所以此处加入 callback 以防止这种情况
              if (this.userInfoReadyCallback) {
                this.userInfoReadyCallback(res)
              }
            }
          })
        }
      }
    })
  },
  globalData: {
    globalUrl: 'http://smart.changwujuexi.cn/',
    userInfo: null,
    // CustomBar: wx.getSystemInfoSync()['statusBarHeight'],
    ColorList: [{
      title: '嫣红',
      name: 'red',
      color: '#e54d42'
    },
    {
      title: '桔橙',
      name: 'orange',
      color: '#f37b1d'
    },
    {
      title: '明黄',
      name: 'yellow',
      color: '#fbbd08'
    },
    {
      title: '橄榄',
      name: 'olive',
      color: '#8dc63f'
    },
    {
      title: '森绿',
      name: 'green',
      color: '#39b54a'
    },
    {
      title: '天青',
      name: 'cyan',
      color: '#1cbbb4'
    },
    {
      title: '海蓝',
      name: 'blue',
      color: '#0081ff'
    },
    {
      title: '姹紫',
      name: 'purple',
      color: '#6739b6'
    },
    {
      title: '木槿',
      name: 'mauve',
      color: '#9c26b0'
    },
    {
      title: '桃粉',
      name: 'pink',
      color: '#e03997'
    },
    {
      title: '棕褐',
      name: 'brown',
      color: '#a5673f'
    },
    {
      title: '玄灰',
      name: 'grey',
      color: '#8799a3'
    },
    {
      title: '草灰',
      name: 'gray',
      color: '#aaaaaa'
    },
    {
      title: '墨黑',
      name: 'black',
      color: '#333333'
    },
    {
      title: '雅白',
      name: 'white',
      color: '#ffffff'
    },
    ]
  }
})