//app.js
App({
  onLaunch: function() { 
    // Do something initial when launch.
  },
  onShow: function() {
      // Do something when show.
  },
  onHide: function() {
      // Do something when hide.
  },
  getUserInfo:function(){

  },
  globalData:{
    userInfo:null,
    screenHeight:100,
    screenWidth:100
  }
})