微信小程序多列选择器

wxml

 

<picker mode="multiSelector" bindchange="bindMultiPickerChange2" bindcolumnchange="bindMultiPickerColumnChange2" value="{{multiIndex}}" range="{{objectMultiArray}}" range-key="{{\'name\'}}">
   <view class="picker">
      当前选择：{{objectMultiArray[0][multiIndex2[0]].name}}，{{objectMultiArray[1][multiIndex2[1]].name}}
   </view>
</picker>

wxjs

 

Page({
 
  /**
   * 页面的初始数据
   */
  data: {
    objectMultiArray: [
      [
        {
          id: 0,
          name: \'无脊柱动物\'
        },
        {
          id: 1,
          name: \'脊柱动物\'
        }
      ], [
        {
          id: 0,
          name: \'扁性动物\'
        },
        {
          id: 1,
          name: \'线形动物\'
        },
        {
          id: 2,
          name: \'环节动物\'
        },
        {
          id: 3,
          name: \'软体动物\'
        },
        {
          id: 3,
          name: \'节肢动物\'
        }
      ]
    ],
    multiIndex2: [0, 0],
  },
 
  bindMultiPickerChange2: function (e) {
    console.log(\'picker发送选择改变，携带值为\', e.detail.value)
    this.setData({
      multiIndex2: e.detail.value
    })
  },
  bindMultiPickerColumnChange2: function (e) {
    console.log(\'修改的列为\', e.detail.column, \'，值为\', e.detail.value);
    var data = {
      objectMultiArray: this.data.objectMultiArray,
      multiIndex2: this.data.multiIndex2
    };
    data.multiIndex2[e.detail.column] = e.detail.value;
    switch (e.detail.column) {
      case 0:
        switch (data.multiIndex2[0]) {
          case 0:
            data.objectMultiArray[1] = [
              { id: 0, name: \'扁性动物\' },
              { id: 1, name: \'线形动物\' },
              { id: 2, name: \'环节动物\' },
              { id: 3, name: \'软体动物\' },
              { id: 3, name: \'节肢动物\' }
            ];
            // data.multiArray[2] = [\'猪肉绦虫\', \'吸血虫\'];
            break;
          case 1:
            data.objectMultiArray[1] = [
              { id: 0, name: \'鱼\' },
              { id: 1, name: \'线形两栖动物\' },
              { id: 2, name: \'爬行动物\' }
            ];
            break;
        }
        data.multiIndex2[1] = 0;
        // data.multiIndex[2] = 0;
        break;
    }
    this.setData(data);
  }
 
 
})