# picker

Page({
  data: {
    array: ["America", "China", 'Brazil ', "Japan"],
    objectArray: [
      {
        id: 0,
        name: "America"
      },
      {
        id: 1,
        name: "China"
      },
      {
        id: 2,
        name: "Brazil"
      },
      {
        id: 3,
        name: "Japan"
      }
    ],
    index: 0,
    multiArray: [[Spineless animals, "Spinal animals"], ['Flatness', 'linear animals', "Annelid", "Mollusca", "arthropod"], [Pork tapeworm. 'bloodsucking bug']],
    objectMultiArray: [
      [
        {
          id: 0,
          name: "Spineless animals"
        },
        {
          id: 1,
          name: "Spinal animals"
        }
      ], [
        {
          id: 0,
          name: "Flat animal"
        },
        {
          id: 1,
          name: 'linear animal'
        },
        {
          id: 2,
          name: "annelid"
        },
        {
          id: 3,
          name: "mollusk"
        },
        {
          id: 3,
          name: "arthropod"
        }
      ], [
        {
          id: 0,
          name: Pork tapeworm
        },
        {
          id: 1,
          name: 'bloodsucking bug'
        }
      ]
    ],
    multiIndex: [0, 0, 0],
    date: '2016-09-01',
    time: '12:01',
    region: ['Guangdong province ', 'Guangzhou City ', Haizhu district],
    customItem: "All"
  },
  bindPickerChange: function(e) {
    console.log('picker sends selection change, carries value of ', e.detail.value)
    this.setData({
      index: and.detail.value
    })
  },
  bindMultiPickerChange: function (e) {
    console.log('picker sends selection change, carries value of ', e.detail.value)
    this.setData({
      multiIndex: and.detail.value
    })
  },
  bindMultiPickerColumnChange: function (e) {
    console.log('Modified listing ', and.detail.column, ', with a value of', e.detail.value)
    where data = {
      multiArray: this.data.multiArray,
      multiIndex: this.data.multiIndex
    }
    data.multiIndex[and.detail.column] = and.detail.value
    switch (and.detail.column) {
      case 0:
        switch (data.multiIndex[0]) {
          case 0:
            data.multiArray[1] = ['Flatness', 'linear animals', "Annelid", "Mollusca", "arthropod"]
            data.multiArray[2] = [Pork tapeworm. 'bloodsucking bug']
            break
          case 1:
            data.multiArray[1] = ["Fish," "Amphibians", "Reptile"]
            data.multiArray[2] = [Crucian carp, Hairtail]
            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] = [Pork tapeworm. 'bloodsucking bug']
                break
              case 1:
                data.multiArray[2] = [Ascaris lumbricoides]
                break
              case 2:
                data.multiArray[2] = ["Ant", "Leech"]
                break
              case 3:
                data.multiArray[2] = [Mussel, "Snail", "Slugs"]
                break
              case 4:
                data.multiArray[2] = ["Insects," "Crustaceans", "Arachnid", "Myriapod"]
                break
            }
            break
          case 1:
            switch (data.multiIndex[1]) {
              case 0:
                data.multiArray[2] = [Crucian carp, Hairtail]
                break
              case 1:
                data.multiArray[2] = ["Frog", "The Salamander"]
                break
              case 2:
                data.multiArray[2] = ["Lizard", "Turtle", "Gecko"]
                break
            }
            break
        }
        data.multiIndex[2] = 0
        break
    }
    console.log(data.multiIndex)
    this.setData(data)
  },
  bindDateChange: function(e) {
    console.log('picker sends selection change, carries value of ', e.detail.value)
    this.setData({
      date: and.detail.value
    })
  },
  bindTimeChange: function(e) {
    console.log('picker sends selection change, carries value of ', e.detail.value)
    this.setData({
      time: and.detail.value
    })
  },
  bindRegionChange: function (e) {
    console.log('picker sends selection change, carries value of ', e.detail.value)
    this.setData({
      region: and.detail.value
    })
  }
})