smallApp2/app.js

//app.js
var appInstance = getApp()
// console.log(appInstance.onShow())
App({
  data:{
  },
  globalData: {
    common: {
      source: 0,
      app_type: 2
    },
    userInfo: null,
    HOST: 'https://chaoshi.henhaojie.com',
    platform: 0,
    title: '',
    img: ''
  },
  // 在这个app里面this就是app实例
  // 监听小程序初始化
  onLaunch: function (){
      let system = '', app = this;
      const shareInfo = wx.getStorageSync('shareInfo');

      if (shareInfo) {
          app.globalData.title = shareInfo.title;
          app.globalData.img = shareInfo.img;
      }else{
          wx.redirectTo({url: '/pages/login/login'})
      }
      wx.getSystemInfo({
        success: function(res) {
          system = res.system
          console.log(system)
          if (system.indexOf('iOS') == -1) {
            app.globalData.platform = 1;
          }else{
            app.globalData.platform = 2;
          }
          console.log(app.globalData.platform);
        }
      })
  },
  // 监听小程序显示
  onShow: function (options) {
  },
  // 监听小程序隐藏
  onHide: function () {
  },
  onUnload () {
      wx.clearStorage();
  },
  // 错误监听函数
  onError: function (msg) {
    console.log(msg)
  },
  login: function (that, func) {
    let obj = {}, app = this, user = '', source = '';
    if (that.data.source) {
      source = that.data.source
    }
    wx.login({
      success: function(res) {
        if (res.code) {
            wx.request({
                url: app.globalData.HOST + '/user/wx/login',
                method: "POST",
                data: {
                  code: res.code,
                  iv: app.globalData.userInfo.iv,
                  encryptedData: app.globalData.userInfo.encryptedData,
                  source: source,
                  app_type: 2
                },
                success: function (resLogin) {
                    if (resLogin.data.errno == 0) {
                        user = resLogin.data.rst;
                        wx.setStorageSync("user", user)
                        app.globalData.common['token'] = user.token
                        wx.switchTab({'url': '/pages/index/index'})
                        if (func) {
                          func();
                        }
                        app.initShare();
                    }
                }
            })
        } else {
          console.log('登录失败！' + res.errMsg)
        }
      }
    });
  },
  initShare () {
    var app = this;
    var title='', img = '';
    wx.request({
      url: app.globalData.HOST + '/user/wx/share',
      method: 'POST',
      data: app.globalData.common,
      success: function (res) {
        if (res.data.errno == '0'){
          title = res.data.rst.title;
          img = res.data.rst.pic;
        }
        app.globalData.title = title;
        app.globalData.img = img;
        wx.setStorage({
            key: 'shareInfo',
            data: {
                title: title,
                img: img
            }
        })
      }
    });
  },
  confirmModal (content, func) {
    wx.showModal({
      title: '小提示',
      content: content,
      success: function(res) {
        if (res.confirm) {
          func();
        } else if (res.cancel) {
        }
      }
    })
  },
  noticeModal (content, func) {
    wx.showModal({
      title: '小提示',
      content: content,
      showCancel: false,
      confirmText: '我知道了',
      success: function(res) {
        if (res.confirm) {
          if (func) {
            func();
          }
        }
      }
    })
  }
})