school_meal_wxapp/pages/detail/detail.js

// pages/detail/detail.js
const app = getApp()
const { axios, token } = app.globalData;
Page({
  /**
   * 页面的初始数据
   */
  data: {
    // 数据模拟
    shopdetail: {}
  },
  // 点击图标事件
  onClickIcon (e) {
    let { type } = e.currentTarget.dataset;
    if (type == 'share') {
      wx.lxd.Share({
        show: true,
      })
    }
  },
  // 点击按钮事件
  onClickButton (e) {
    let { type } = e.currentTarget.dataset;
    // 点击立即购买
    if (type == "buy") {
      if (!token()) {
        wx.navigateTo({
          url: '/pages/sgin/sgin',
        })
        return false
      }
      let { id, shopdetail } = this.data;
      wx.navigateTo({
        url: `/pages/pay/pay?data=${JSON.stringify({ id, shopdetail })}`,
      })
      return false;
    }
  },
  // 请求数据
  ShopRequest () {
    let { id, shopdetail } = this.data, that = this;
    axios({
      url: `/commodity/wx_commodity_detail/${id}/`,
      method: "get",
      success (res) {
        let { amount, price, days, detail_images: detaillist, introduce: desc, main_image: img, name } = res.data.data;
        shopdetail = {
          name, price, detaillist, desc, img, amount, days
        };
        that.setData({
          shopdetail
        })
        wx.stopPullDownRefresh();
      }
    })
  },
  /**
   * 生命周期函数--监听页面加载
   */
  onLoad: function (options) {
    wx.lxd.Ctr({
      // nav
      title: "商品详情", //标题
      back: true,//返回按钮，tabber必须false（除非会改）
    })
    let { data } = options;
    if (!!data) {
      data = JSON.parse(data);
      this.setData({
        ...data
      })
    }
  },

  /**
   * 生命周期函数--监听页面初次渲染完成
   */
  onReady: function () {

  },

  /**
   * 生命周期函数--监听页面显示
   */
  onShow: function () {
    this.ShopRequest();
  },

  /**
   * 生命周期函数--监听页面隐藏
   */
  onHide: function () {

  },

  /**
   * 生命周期函数--监听页面卸载
   */
  onUnload: function () {

  },

  /**
   * 页面相关事件处理函数--监听用户下拉动作
   */
  onPullDownRefresh: function () {
    this.ShopRequest();
  },

  /**
   * 页面上拉触底事件的处理函数
   */
  onReachBottom: function () {

  },

  /**
   * 用户点击右上角分享
   */
  onShareAppMessage: function () {
    return {
      title: this.data.shopdetail.name,
      path: `/pages/detail/detail?data=${JSON.stringify({ id: this.data.id })}`
    }
  },
  onShareTimeline: function (res) {
    return {
      title: this.data.shopdetail.name,
      query: `data=${JSON.stringify({ id: this.data.id })}`
    }
  }
})