<template> <div class="address">  <div class="addressboxbg" @click="cancel"></div>  <div class="addressbox">   <p class="text_btn"><span style="float:left;" @click="cancel">取消</span><span style="float:right;color:#107E52;" @click="complete">完成</span></p>   <div class="addressSelect" >    <div class="selectbox"></div>    <ul @touchstart="touchStart($event,'province')" @touchmove="touchMove($event,'province')" @touchend="touchEnd($event,'province')" :style="provinceStyle" :class="[{'selectAni':addSelect}]">     <li v-for="(item,index) in list" :class="[{'addSelectActive':index == provinceIndex}]" :key="index">{{item.name}}</li>    </ul>    <ul @touchstart="touchStart($event,'city')" @touchmove="touchMove($event,'city')" @touchend="touchEnd($event,'city')" :style="cityStyle" :class="[{'selectAni':addSelect}]">     <li v-for="(item,index) in list2" :class="[{'addSelectActive':index == cityIndex}]" :key="index">{{item.name}}</li>    </ul>    <ul @touchstart="touchStart($event,'district')" @touchmove="touchMove($event,'district')" @touchend="touchEnd($event,'district')" :style="districtStyle" :class="[{'selectAni':addSelect}]">     <li v-for="(item,index) in list3" :class="[{'addSelectActive':index == districtIndex}]" :key="index" >{{item.name}}</li>    </ul>   </div>  </div> </div></template> <script>export default { data () {  return {   list: [],   list2: [],   list3: [],   provinceStyle: {    WebkitTransform: 'translate3d(0px,0px,0px)'   },   cityStyle: {    WebkitTransform: 'translate3d(0px,0px,0px)'   },   districtStyle: {    WebkitTransform: 'translate3d(0px,0px,0px)'   },   startTop: 0,   provinceIndex: 0,   cityIndex: 0,   districtIndex: 0,   translateY: 0,   maxScroll: 0,   addHeight: 0,   addSelect: false,   provinceVal: '',   cityVal: '',   areaVal: '',   val: {    'provinceVal': '',    'cityVal': '',    'areaVal': ''   }  } }, watch: {  // 監(jiān)聽省滑動(dòng)  provinceVal (value) {   this.$axiosGet(this.$api.area, {parentId: value}).then((res) => {    if (res.code === 1) {     this.list2 = res.data.length > 1 ? res.data : [{name: '-'}]     if (res.data.length < 1) {      this.list3 = [{name: '-'}]     }     this.cityVal = this.list2[0].value    }   })  },  // 監(jiān)聽市滑動(dòng)  cityVal (value) {   if (value) {    this.$axiosGet(this.$api.area, {parentId: value}).then((res) => {     if (res.code === 1) {      this.list3 = res.data.length > 1 ? res.data : [{name: '-'}]     }    })   }  } }, created () {  // 初始化數(shù)據(jù)  // 拿省的數(shù)據(jù)  this.$axiosGet(this.$api.area).then((res) => {   if (res.code === 1) {    this.list = res.data    this.val.provinceVal = this.list[0]   }  })  // 拿市區(qū)的數(shù)據(jù)  this.$axiosGet(this.$api.area, {parentId: '1'}).then((res) => {   if (res.code === 1) {    this.list2 = res.data    this.val.cityVal = this.list2[0]   }  })  this.val.areaVal = {   'name': '',   'value': ''  }  // 第一條數(shù)據(jù)為直轄市 so '-' 符號表示為第三列  this.list3 = [{name: '-'}] }, methods: {  // 點(diǎn)擊取消  cancel () {   this.$emit('cancel', false)  },  // 點(diǎn)擊完成  complete () {   if (!this.val.areaVal.value) {    this.val.areaVal = {     'name': '',     'value': ''    }   }   if (!this.val.cityVal.value) {    this.val.cityVal = {     'name': '',     'value': ''    }   }   this.$emit('complete', this.val)  },  // 滑動(dòng)開始  touchStart (e, val) {   e.preventDefault()   this.addSelect = false   this.addHeight = e.currentTarget.children[0].offsetHeight   this.maxScroll = this.addHeight * e.currentTarget.children.length   this.startTop = e.targetTouches[0].pageY   switch (val) {    case 'province':     this.translateY = parseInt(this.provinceStyle.WebkitTransform.slice(this.provinceStyle.WebkitTransform.indexOf(',') + 1, this.provinceStyle.WebkitTransform.lastIndexOf(',')))     break    case 'city':     this.translateY = parseInt(this.cityStyle.WebkitTransform.slice(this.cityStyle.WebkitTransform.indexOf(',') + 1, this.cityStyle.WebkitTransform.lastIndexOf(',')))     break    case 'district':     this.translateY = parseInt(this.districtStyle.WebkitTransform.slice(this.districtStyle.WebkitTransform.indexOf(',') + 1, this.districtStyle.WebkitTransform.lastIndexOf(',')))     break    default:     break   }  },  // 滑動(dòng)進(jìn)行中  touchMove (e, val) {   e.preventDefault()   switch (val) {    case 'province':     if ((e.targetTouches[0].pageY - this.startTop + this.translateY) > 0) {      this.provinceStyle.WebkitTransform = 'translate3d(0px,0px,0px)'     } else if ((e.targetTouches[0].pageY - this.startTop + this.translateY) < -(this.maxScroll - this.addHeight)) {      this.provinceStyle.WebkitTransform = 'translate3d(0px,' + -(this.maxScroll - this.addHeight) + 'px,0px)'     } else {      this.provinceStyle.WebkitTransform = 'translate3d(0px,' + (e.targetTouches[0].pageY - this.startTop + this.translateY) + 'px,0px)'     }     break    case 'city':     if ((e.targetTouches[0].pageY - this.startTop + this.translateY) > 0) {      this.cityStyle.WebkitTransform = 'translate3d(0px,0px,0px)'     } else if ((e.targetTouches[0].pageY - this.startTop + this.translateY) < -(this.maxScroll - this.addHeight)) {      this.cityStyle.WebkitTransform = 'translate3d(0px,' + -(this.maxScroll - this.addHeight) + 'px,0px)'     } else {      this.cityStyle.WebkitTransform = 'translate3d(0px,' + (e.targetTouches[0].pageY - this.startTop + this.translateY) + 'px,0px)'     }     break    case 'district':     if ((e.targetTouches[0].pageY - this.startTop + this.translateY) > 0) {      this.districtStyle.WebkitTransform = 'translate3d(0px,0px,0px)'     } else if ((e.targetTouches[0].pageY - this.startTop + this.translateY) < -(this.maxScroll - this.addHeight)) {      this.districtStyle.WebkitTransform = 'translate3d(0px,' + -(this.maxScroll - this.addHeight) + 'px,0px)'     } else {      this.districtStyle.WebkitTransform = 'translate3d(0px,' + (e.targetTouches[0].pageY - this.startTop + this.translateY) + 'px,0px)'     }     break    default:     break   }  },  // 滑動(dòng)結(jié)束  touchEnd (e, val) {   e.preventDefault()   this.addSelect = true   switch (val) {    case 'province':     let provinceTranslateY = parseInt(this.provinceStyle.WebkitTransform.slice(this.provinceStyle.WebkitTransform.indexOf(',') + 1, this.provinceStyle.WebkitTransform.lastIndexOf(',')))     this.provinceIndex = -Math.round(provinceTranslateY / this.addHeight)     this.provinceStyle.WebkitTransform = 'translate3d(0px,' + (Math.round(provinceTranslateY / this.addHeight) * this.addHeight) + 'px,0px)'     this.cityStyle.WebkitTransform = this.districtStyle.WebkitTransform = 'translate3d(0px,0px,0px)'     this.cityIndex = this.districtIndex = 0     break    case 'city':     let cityTranslateY = parseInt(this.cityStyle.WebkitTransform.slice(this.cityStyle.WebkitTransform.indexOf(',') + 1, this.cityStyle.WebkitTransform.lastIndexOf(',')))     this.cityIndex = -Math.round(cityTranslateY / this.addHeight)     this.cityStyle.WebkitTransform = 'translate3d(0px,' + (Math.round(cityTranslateY / this.addHeight) * this.addHeight) + 'px,0px)'     this.districtStyle.WebkitTransform = 'translate3d(0px,0px,0px)'     this.districtIndex = 0     break    case 'district':     let districtTranslateY = parseInt(this.districtStyle.WebkitTransform.slice(this.districtStyle.WebkitTransform.indexOf(',') + 1, this.districtStyle.WebkitTransform.lastIndexOf(',')))     this.districtIndex = -Math.round(districtTranslateY / this.addHeight)     this.districtStyle.WebkitTransform = 'translate3d(0px,' + (Math.round(districtTranslateY / this.addHeight) * this.addHeight) + 'px,0px)'     break    default:     break   }   // 滑動(dòng)結(jié)束后 處理數(shù)據(jù)   this.dataProcessing()  },  // 數(shù)據(jù)處理  dataProcessing () {   // 滑動(dòng)數(shù)據(jù)傳輸 數(shù)據(jù)處理   this.val.provinceVal = this.list[this.provinceIndex]   this.provinceVal = this.list[this.provinceIndex].value   this.val.cityVal = this.list2[this.cityIndex]   this.cityVal = this.list2[this.cityIndex].value   this.val.areaVal = this.list3[this.districtIndex]   this.areaVal = this.list3[this.districtIndex].value   // this.val.cityVal = this.addressData[this.provinceIndex].city[this.cityIndex].name   // this.val.areaVal = this.addressData[this.provinceIndex].city[this.cityIndex].area[this.districtIndex]   // this.$emit('getAddress', this.val)   // this.test([this.val.provinceVal, this.cityIndex, this.districtIndex])  } }}</script> <style>.address{ position:absolute; top: 0px; bottom: 0px; left: 0px; right: 0px;}.address .addressbox{ height: 40%; position: absolute; z-index: 101; width: 100%; max-height: 100%; overflow: hidden; background: #fff; bottom: 0px;}.address .addressbox .text_btn{ height: 30px; font-size: 14px; line-height: 30px; border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; padding: 0 10px; background: #F9F9F9;}.addressSelect .selectbox{ width: 100%; height: 26px; border-top: 1px solid #ccc; border-bottom: 1px solid #ccc; margin-top: 60px; background: #F9F9F9;}.address .addressboxbg{ position: absolute; left: 0; top: 0; z-index: 100; width: 100%; height: 100%; background: rgba(0,0,0,.7);}.addressSelect{width: 100%; position: relative; background: #fff; height: 190px;overflow: hidden; -webkit-mask-box-image: linear-gradient(0deg,transparent,transparent 5%,#fff 20%,#fff 80%,transparent 95%,transparent); font-size: 14px;}.addressSelect ul{width: 33.333333%; position: absolute; left: 0; top:60px; -webkit-transform-style: preserve-3d; -webkit-backface-visibility:hidden; text-align: center; padding-left: 0;}.addressSelect ul li{white-space : nowrap;overflow: hidden; text-overflow:ellipsis; color:rgba(0,0,0,.54); padding: 3px 0;}.addressSelect ul:nth-of-type(2){left: 33.333333%;}.addressSelect ul:nth-of-type(3){left: 66.666666%;}.addressSelect ul li.addSelectActive{color:rgba(0,0,0,.87); transform: scale(1.1); transition: 0.5s;}.selectAni{transition: 0.8s;}</style>