// pages/message/index.js
const event = require('../../../utils/event')
const app = getApp()

Component({
  options: {
    addGlobalClass: true,
    multipleSlots: true
  },
  properties: {
    item: { type: Object, value: null }
  },
  data: {
    kg: app.globalData.kg
  },
  lifetimes: {
    // 生命周期函数，可以为函数，或一个在methods段中定义的方法名
    attached: function () {
      this.setData({ kg: app.globalData.kg })
      event.on('EventMessage', this, this.onEvent)
    },
    detached: function () {
      event.remove('EventMessage', this)
    }
  },
  methods: {
    onEvent: function (message) {
      if(message.what == 1001){
        this.setData({ kg: app.globalData.kg })
      }
    },
    lookItem: function (e) {
      wx.navigateTo({ url: '/pages/purchase/detail/index?id=' + this.data.item.id })
    }
  }

})