# picker

Page({
  data: {
    array: ['美国', '中国', '巴西', '日本'],
    objectArray: [
      {
        id: 0,
        name: '美国'
      },
      {
        id: 1,
        name: '中国'
      },
      {
        id: 2,
        name: '巴西'
      },
      {
        id: 3,
        name: '日本'
      }
    ],
    index: 0,
    multiArray: [
      ['无脊柱动物', '脊柱动物'],
      ['扁性动物', '线形动物', '环节动物', '软体动物', '节肢动物'],
      ['猪肉绦虫', '吸血虫']
    ],
    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'
        }
      ],
      [
        {
          id: 0,
          name: '猪肉绦虫'
        },
        {
          id: 1,
          name: '吸血虫'
        }
      ]
    ],
    multiIndex: [0, 0, 0],
    date: '2016-09-01',
    time: '12:01',
    region: ['广东省', '广州市', '海珠区'],
    customItem: '全部'
  },
  bindPickerChange: function(e) {
    console.log('picker发送选择改变，携带值为', e.detail.value)
    this.setData({
      index: e.detail.value
    })
  },
  bindMultiPickerChange: function(e) {
    console.log('picker发送选择改变，携带值为', e.detail.value)
    this.setData({
      multiIndex: e.detail.value
    })
  },
  bindMultiPickerColumnChange: function(e) {
    console.log('修改的列为', e.detail.column, '，值为', e.detail.value)
    var data = {
      multiArray: this.data.multiArray,
      multiIndex: this.data.multiIndex
    }
    data.multiIndex[e.detail.column] = e.detail.value
    switch (e.detail.column) {
      case 0:
        switch (data.multiIndex[0]) {
          case 0:
            data.multiArray[1] = ['扁性动物', '线形动物', '环节动物', '软体动物', '节肢动物']
            data.multiArray[2] = ['猪肉绦虫', '吸血虫']
            break
          case 1:
            data.multiArray[1] = ['鱼', '两栖动物', '爬行动物']
            data.multiArray[2] = ['鲫鱼', '带鱼']
            break
        }
        data.multiIndex[1] = 0
        data.multiIndex[2] = 0
        break
      case 1:
        switch (data.multiIndex[0]) {
          case 0:
            switch (data.multiIndex[1]) {
              case 0:
                data.multiArray[2] = ['猪肉绦虫', '吸血虫']
                break
              case 1:
                data.multiArray[2] = ['蛔虫']
                break
              case 2:
                data.multiArray[2] = ['蚂蚁', '蚂蟥']
                break
              case 3:
                data.multiArray[2] = ['河蚌', '蜗牛', '蛞蝓']
                break
              case 4:
                data.multiArray[2] = ['昆虫', '甲壳动物', '蛛形动物', '多足动物']
                break
            }
            break
          case 1:
            switch (data.multiIndex[1]) {
              case 0:
                data.multiArray[2] = ['鲫鱼', '带鱼']
                break
              case 1:
                data.multiArray[2] = ['青蛙', '娃娃鱼']
                break
              case 2:
                data.multiArray[2] = ['蜥蜴', '龟', '壁虎']
                break
            }
            break
        }
        data.multiIndex[2] = 0
        break
    }
    console.log(data.multiIndex)
    this.setData(data)
  },
  bindDateChange: function(e) {
    console.log('picker发送选择改变，携带值为', e.detail.value)
    this.setData({
      date: e.detail.value
    })
  },
  bindTimeChange: function(e) {
    console.log('picker发送选择改变，携带值为', e.detail.value)
    this.setData({
      time: e.detail.value
    })
  },
  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
    })
  }
})