minixyz/pages/addAddress/addAddress.js

// pages/addAddress/addAddress.js
const date = new Date()
const years = []
const months = []
const days = []

for (let i = 1990; i <= date.getFullYear(); i++) {
  years.push(i)
}

for (let i = 1; i <= 12; i++) {
  months.push(i)
}

for (let i = 1; i <= 31; i++) {
  days.push(i)
}

const getReq = require('./../../config.js').getReq

Page({

  /**
   * 页面的初始数据
   */
  data: {
    checked: true,
    areas: [],
    tree: [],
    cityIndex: 0,
    districtIndex: 0,
    region: [],
    years: years,
    year: date.getFullYear(),
    months: months,
    month: 2,
    days: days,
    day: 2,
    value: [0, 0, 0],
    oldval: [0, 0, 0],
    citys: [],
    districts: []
  },

  /**
   * 生命周期函数--监听页面加载
   */
  onLoad: function (options) {
    this.getDatas()
  },
  toggleChecked() {
    this.setData({
      checked: !this.data.checked
    })
  },
  bindRegionChange: function (e) {
    // console.log('picker发送选择改变，携带值为', e.detail.value)
    this.setData({
      region: e.detail.value
    })
  },
  bindChange: function (e) {
    console.log(e)
    const val = e.detail.value


    // if (districtIndex != this.data.oldval[1] && cityIndex != 0) {
    //   districtIndex = 0
    // }
    if (this.data.oldval[0] != val[0]) {
      val[1] = 0
      val[2] = 0
    } else {    //若省份column未做滑动，地级市做了滑动则定位区县第一位
      if (this.data.oldval[1] != val[1]) {
        val[2] = 0
      }
    }
    let cityIndex = val[0]
    let districtIndex = val[1]
    this.setData({
      oldval: val,
      citys: this.data.tree[val[0]].children,
      districts: this.data.tree[val[0]].children[val[1]].children
    })
    // this.setData({
    //   oldval: val,
    //   citys: this.data.tree[val[0]],
    //   districts: this.data.tree[val[0].children[val[1]]
    // })
  },
  getDatas() {
    wx.showLoading({
      title: '加载中',
    })
    var self = this
    getReq({
      act: 'app_update',
      op: 'area',
      curpage: 1
    }, function (res) {
      wx.hideLoading()
      if (res.code == 200) {
        console.log(res.datas.areas)
        let tree = self.arrayToTree(res.datas.areas)
        console.log(tree)
        self.setData({
          areas: res.datas.areas,
          tree
        })
      }
      else {
        wx.showToast({
          icon: 'none',
          title: res.message,
          duration: 2000
        })
      }
    })
  },
  arrayToTree(array) {
    let result = [], hash = {}, children = 'children'
    array.forEach((item, index) => {
      hash[item.aid] = item
    })

    array.forEach((item, index) => {
      let pid = item.pid
      if (pid == 0) {
        result.push(item)
      }
      else {
        let hashvp = hash[item.pid]
        if (!hashvp[children]) {
          hashvp[children] = []
        }
        hashvp[children].push(item)
      }
    })
    return result
  },

  /**
   * 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 () {

  },

  /**
   * 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 () {

  },

  /**
   * 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 () {

  }
})