微信小程序自定义多列选择器使用详解

 
  多列自创选择器：{{onlyArray[0][customIndex[0]]}}，{{onlyArray[1][customIndex[1]]}}，{{onlyArray[2][customIndex[2]]}}
 

Page({

 /**
 * 页面的初始数据
 */
 data: {
 //当前选中数组的下标值
 customIndex: [0, 0, 0],
 //当前选中数组
 onlyArray: [
  [],
  [],
  []
 ],
 //customArray假设为我们从后台获取到的json数据
 customArray: [{
  name: '百度',
  dept: [{
   name: '搜索',
   product: [{
    name: '百度搜索'
    },
    {
    name: '百度一下'
    },
   ]
   },
   {
   name: '团购',
   product: [{
    name: '百度糯米'
   }, {
    name: '饿了么'
   }]
   },
   {
   name: '音乐',
   product: [{
    name: '百度音乐'
   }]
   },
   {
   name: '问答社区',
   product: [{
    name: '百度贴吧'
   }]
   }
  ]
  },

  {
  name: '腾讯',
  dept: [{
   name: '社交',
   product: [{
    name: 'QQ'
    },
    {
    name: '微信'
    },
   ]
   },
   {
   name: '视频',
   product: [{
    name: '腾讯视频'
    },
    {
    name: '搜狐视频'
    },
   ]
   },

   {
   name: '短视频',
   product: [{
    name: '微视'
   }]
   }
  ]
  },
 ],
 },

 /**
 * 生命周期函数--监听页面加载
 */
 onLoad: function(options) {
 var data = {
  customArray: this.data.customArray,
  customIndex: this.data.customIndex,
  onlyArray: this.data.onlyArray,
 };
 for (var i = 0; i 

//多列自定义选择器改变value的方法
 bindCustomPickerChange: function(e) {
 var customArray = this.data.customArray,
  customIndex = this.data.customIndex,
  OnlyArray= this.data.onlyArray;

 console.log('picker发送选择改变，携带值为', e.detail.value);
 //此处e.detail.value为当前选择的列的下标值数组，如[0,1,0]
 
 console.log('picker最终选择值为：', onlyArray[0][customIndex[0]], onlyArray[1][customIndex[1]], onlyArray[2][customIndex[2]]);
 this.setData({
  customIndex: e.detail.value
 })
 },

 //多列自创选择器换列方法
 bindCustomPickerColumnChange: function(e) {
 var customArray = this.data.customArray,
  customIndex = this.data.customIndex,
  OnlyArray= this.data.onlyArray;

 customIndex[e.detail.column] = e.detail.value;
 // console.log(onlyArray);

 var searchColumn = () => {
  for (var i = 0; i