dw_lotter_draw/pages/mine/msg/msg.js

Page({

  /**
   * 页面的初始数据
   */
  data: {
    current: '1',
    dataUrl: [
      'https://easy-mock.com/mock/5c9c6cad45252c38c9a09ca1/example/smallApp',
      'https://easy-mock.com/mock/5c9c6cad45252c38c9a09ca1/example/smallApp'
    ],
    dataList: [],
    isHaveData: false,
    isHaveMore: true
  },

  changeTab: function({ detail }) {
    // tab切换
    this.setData({
      current: detail.key,
      dataList: []
    })
    // this.getDataList()
  },

  /**
   * 生命周期函数--监听页面加载
   */
  onLoad: function (options) {
    // this.getDataList()
  },

  getDataList: function() {
    var that = this
    wx.showLoading({
      title: '加载中',
      mask: true
    })
    wx.request({
      url: that.data.dataUrl[that.data.current - 1],
      method: 'get',
      dataType: 'json',
      success: function(res) {
        if (res.data.code == 0) {
          let list = res.data.data
          wx.hideLoading()
          list.map(item => {
            if (item.desc.length > 60) {
              item.isCut = true
              item.showText = '查看更多'
              item.cutDesc = item.desc.slice(0, 60) + '...'
            } else {
              item.cutDesc = item.desc
            }
          })
          that.setData({
            dataList: that.data.dataList.concat(list)
          })
        }
      }
    })
  },

  showAllDesc: function(e) {
    let newList = this.data.dataList
    newList.map(item => {
      if (item.showText == '查看更多') {
        item.cutDesc = item.desc
        item.showText = '收回'
      } else if (item.showText == '收回') {
        item.cutDesc = item.desc.slice(0, 60) + '...'
        item.showText = '查看更多'
      }
    })
    this.setData({
      dataList: newList
    })
  }
})