todo list：
首页：
商品发布页面：

供求发布页面
全部业主需求页面：
我的供求页面：
我的商品列表页面
 商品编辑页面

我的需求列表页面:
接口问题：
优惠卷和询价
bug： 商品编辑 增加图片后 图片顺序乱了




等待后台--- 单个我的商品页面的图片顺序，单个我的需求页面的接口, 当个我哦的需求编辑页面的接口



import Taro, { Component } from '@tarojs/taro'
import { View, Text } from '@tarojs/components'

import { Picker } from 'taro-ui'

import './goodsTypeInteractionComp.scss'

class GoodsTypeInteractionComp extends Component {

    config = {
        navigationBarTitleText: 'goodsTypeInteractionComp'
    }
    constructor() {
        super(...arguments);

        this.state = {
            ///---行业分类 开始
            objectMultiArray: [[{ name: '选择商品分类', id: '' }], [], []],
            multiIndex: [0, 0, 0, 0],
            formatInWindow: [],
            ///---行业分类 结束
        }

    }
    //商品目录请求api GetShopCategoryList
    getProductCateList(url) {
        Taro.request({
            url: url,
            method: 'POST',
            dataType: 'json',
            header: {
                'content-type': 'application/x-www-form-urlencoded',
                'Cookie': 'PFWSSS=' + Taro.getStorageSync('session_id'),
                'X-Requested-With': 'XMLHttpRequest'
            }
        })
            .then(res => {
                if (res.data.err_msg === 'success') {
                    console.log('商品分类目录', res)
                    this.formatIndustryType(res.data.data)
                    this.formatIndustTypeInit(res.data.data)
                    this.setState({goodsTypeList:res.data.data})
                   
                } else {
                    console.log('商品分类请求没有成功', res)
                }
            }
            )
            .catch(error => {
                console.log('商品分类请求错误', error)
            })
    }
 


    // 第一种formate 用于底部弹层滚动时的数据
    formatIndustryType(data) {
        const newIndustryType = []
        if (data) {
            for (let outter of data) {
                let outterObject = { name: outter.class_name, id: outter.class_id, children: [] }
                if (outter.children) {
                    for (let middler of outter.children) {
                        const middleObject = { name: middler.class_name, id: middler.class_id, children: [] }
                        outterObject.children.push(middleObject)
                        if (middler.children) {
                            for (let inner of middler.children) {
                                const innerObject={ name: inner.class_name, id: inner.class_id,children: [] }
                                middleObject.children.push(innerObject)

                                if (inner.children) {
                                    for (let final of inner.children) {
                                        innerObject.children.push({ name: final.class_name, id: final.class_id })
                                        
                                    }
                                } else {
                                    innerObject.children.push({ name: '', id: '' })
                                }
                            }
                        } else {
                            middleObject.children.push({ name: '', id: '' })
                        }
                    }
                } else {
                    outterObject.children.push({ name: '', id: '', children: [] })
                }
                newIndustryType.push(outterObject)
            }
        } else {
            console.log('店铺分类数据问题')
        }


        this.setState({ formatInWindow: newIndustryType }, () => {
            console.log('滚动时的数据', this.state.formatInWindow)
        })
    }
    //第二种format 用于底部弹层的初始化数据
    formatIndustTypeInit(data) {
        const firstArray = []
        const secondArray = []
        const thirdArray = []
        for (let outter of data) {
            firstArray.push({ name: outter.class_name, id: outter.class_id })
            if (outter.children) {
                for (let middler of outter.children) {
                    secondArray.push({ name: middler.class_name, id: middler.class_id })
                    if (middler.children) {
                        for (let inner of middler.children) {
                            thirdArray.push({ name: inner.class_name, id: inner.class_id })
                        }
                    }
                }
            }
        }
        // 这里不能加入secondArray，和thirdArray 会有bug
        this.setState({ objectMultiArray: [firstArray, [{ name: '', id: '' }], [{ name: '', id: '' }]] }, () => {
            console.log('初始化数据', this.state.objectMultiArray)
        })
    }
    //--- 三级联动--------------
    bindMultiPickerChange(e) {
        console.log('picker发送选择改变，携带值为', e.detail.value)
        this.setState({
            multiIndex: e.detail.value
        }, () => {
            this.returnResultToParent()
        })
    }
    returnResultToParent() {
        let result = ''
        let outter = this.state.formatInWindow[this.state.multiIndex[0]]
        let middler = outter.children[this.state.multiIndex[1]]
        let inner = middler.children[this.state.multiIndex[2]]
        if (outter.id) {
            result = outter
            if (middler.id) {
                result = middler
                if (inner.id) {
                    result = inner
                }
            }
        }

        this.passDataToParent(result)
    }
    bindMultiPickerCol(e) {
        console.log('修改的列为', e.detail.column, '，值为', e.detail.value)
        const data = {
            multiArray: this.state.objectMultiArray,
            multiIndex: this.state.multiIndex
        }
        data.multiIndex[e.detail.column] = e.detail.value
        
        switch (e.detail.column) {
            case 0:
                switch (data.multiIndex[0]) {
                    case 0:
                        data.multiArray[1] = this.state.formatInWindow[0].children
                        data.multiArray[2] = this.state.formatInWindow[0].children
                        break
                    case 1:
                        data.multiArray[1] = this.state.formatInWindow[1].children
                        break
                    case 2:
                        data.multiArray[1] = this.state.formatInWindow[2].children
                        break
                    case 3:
                        data.multiArray[1] = this.state.formatInWindow[3].children
                        break
                    case 4:
                        data.multiArray[1] = this.state.formatInWindow[4].children
                        break
                }
                data.multiIndex[1] = 0
                data.multiIndex[2] = 0
                data.multiIndex[3] = 0
                break
            case 1:
                switch (data.multiIndex[0]) {
                    case 0:

                        break
                    case 1:
                        switch (data.multiIndex[1]) {
                            case 0:
                                data.multiArray[2] = this.state.formatInWindow[1].children[0].children
                                break
                            case 1:
                                data.multiArray[2] = this.state.formatInWindow[1].children[1].children
                                break
                            case 2:
                                data.multiArray[2] = this.state.formatInWindow[1].children[2].children
                                break
                            case 3:
                                data.multiArray[2] = this.state.formatInWindow[1].children[3].children ? this.state.formatInWindow[1].children[3].children : [{ class_name: '' }]
                                break
                        }
                        break
                    case 2:
                        switch (data.multiIndex[1]) {
                            case 0:
                                data.multiArray[2] = this.state.formatInWindow[2].children[0].children
                                break
                            case 1:
                                data.multiArray[2] = this.state.formatInWindow[2].children[1].children
                                break
                            case 2:
                                data.multiArray[2] = this.state.formatInWindow[2].children[2].children
                                break
                            case 3:
                                data.multiArray[2] = this.state.formatInWindow[2].children[3].children
                                break
                            case 4:
                                data.multiArray[2] = this.state.formatInWindow[2].children[4].children
                                break
                            case 5:
                                data.multiArray[2] = this.state.formatInWindow[2].children[5].children
                                break
                        }
                        break
                    case 3:
                        switch (data.multiIndex[1]) {
                            case 0:
                                data.multiArray[2] = this.state.formatInWindow[3].children[0].children
                                break
                            case 1:
                                data.multiArray[2] = this.state.formatInWindow[3].children[1].children
                                break
                            case 2:
                                data.multiArray[2] = this.state.formatInWindow[3].children[2].children
                                break
                            case 3:
                                data.multiArray[2] = this.state.formatInWindow[3].children[3].children
                                break
                            case 3:
                                data.multiArray[2] = this.state.formatInWindow[3].children[3].children
                                break
                        }
                        break
                    case 4:
                        switch (data.multiIndex[1]) {
                            case 0:
                                data.multiArray[2] = this.state.formatInWindow[4].children[0].children
                                break
                            case 1:
                                data.multiArray[2] = this.state.formatInWindow[4].children[1].children
                                break
                            case 2:
                                data.multiArray[2] = this.state.formatInWindow[4].children[2].children
                                break

                        }
                        break

                }
                data.multiIndex[2] = 0
                data.multiIndex[3] = 0
                break
        }
        this.setState({ multiIndex: data.multiIndex })
    }

    //--------------------结束-行业分类picker
    passDataToParent(industryTypeSelected) {
        this.props.onPassDataToChild(industryTypeSelected)
    }


    componentDidMount() {
        this.getProductCateList(this.props.url)

    }
    // 当然父组件有新的props的 会从新渲染组件
    componentWillReceiveProps(nextProps) {

    }
    componentWillUnmount() { }

    componentDidShow() { }

    componentDidHide() { }

    render() {
        return (
            <View class='page-section'>
                <Picker
                    rangeKey='name'
                    mode='multiSelector'
                    onChange={this.bindMultiPickerChange.bind(this)}
                    onColumnchange={this.bindMultiPickerCol.bind(this)}
                    value={this.state.multiIndex}
                    range={this.state.objectMultiArray}
                >
                    <View class='picker type'>
                        <View className='title-box'>
                            <Text className='require'>*</Text>
                            <Text className='title'>商品分类：</Text>
                            <Text className='first-col'>
                                {this.props.selectedValue.name}
                            </Text>

                            {/* {this.state.objectMultiArray[0].length?<Text className='first-col'> {this.state.objectMultiArray[0][this.state.multiIndex[0]].name}</Text>:null}
                                {this.state.objectMultiArray[1].length?<Text className='second-col'>{this.state.objectMultiArray[1][this.state.multiIndex[1]].name}</Text>:null}
                                {this.state.objectMultiArray[2].length?<Text className='third-col'>{this.state.objectMultiArray[2][this.state.multiIndex[2]].name}</Text>:null} */}

                        </View>
                    </View>
                </Picker>
            </View>


        )
    }
}

export default GoodsTypeInteractionComp