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  • 图片轮播,

    <template>
    <div ref="root" style="user-select: none;-webkit-user-select: none;overflow: hidden">
    <div class="sliderPanel"
    :class="{transitionAni:ani}"
    :style="{height:height,transform:translateX}">
    <div v-for="(item, index) in itemList" :key="index+'sliderPanel'" class="verticalCenter picbox" :style="{left:item.x+'px'}">
    <img :style="{width,top:top}" :src="item.url" style="min-height: 100%">
    </div>
    </div>
    <div @click="clickLeft" class="arrowLeft verticalCenter horizaCenter">
    <img src="./arrow.png" style="transform: rotate(180deg)">
    </div>
    <div @click="clickRight" class="arrowRight verticalCenter horizaCenter">
    <img src="./arrow.png">
    </div>
    <div class="arrowBottom verticalCenter horizaCenter" >
    <img src="./arrow.png" style="transform: rotate(90deg) scale(0.7)">
    </div>
    <div class="sliderBar horizaCenter">
    <div v-for="(item,index) in imgArray" :key="index+'sliderBar'" @click="clickSliderCircle(index)" class="circle" :class="{circleSelected:item.selected}">
    </div>
    </div>
    </div>
    </template>
    <script>
    const SCREEN_WIDTH = document.body.clientWidth
    const SCREEN_HEIGHT = document.body.scrollHeight
    var left, center, right
    var selectIndex = 0
    var count = 0
    var second = 3 // slider 时间间隔
    var timer = null
    var ani = null
    var debugScale = 0.2 // 测试用可调整为小于1
    var Direction = {left: 'left', right: 'right'}
    var autoDirection = Direction.right
    var canClick = true
    export default({
    data: function () {
    return {
    '100%',
    height: SCREEN_HEIGHT + 'px',
    top: 0,
    ani: true,
    translateX: 'scale(' + debugScale + ') translateX(0px)',
    imgArray: [
    {
    x: 0,
    title1: '现在,在您的实验室',
    tilte2: '也可以轻松完成无创DNA产前检测',
    title3: '了解详细流程',
    click_url: 'http://www.berrygenomics.com/products/nextseq-cn500/cn500test/',
    url: require('./image/1.jpg'),
    selected: false
    },
    {
    x: 0,
    title1: 'Sequel开启新基因组时代',
    tilte2: '覆盖十余种胎儿染色体疾病,体验升级,呵护加倍',
    title3: '了解更多',
    click_url: 'http://www.berrygenomics.com/products/nextseq-cn500/cn500test/',
    url: require('./image/2.jpg')
    },
    {
    x: 0,
    title1: 'BRCA1/2全外显子基因突变检测',
    tilte2: '也可以轻松完成无创DNA产前检测',
    title3: '了解详细流程',
    click_url: 'http://www.berrygenomics.com/products/nextseq-cn500/cn500test/',
    url: require('./image/3.jpg')
    },
    {
    x: 0,
    title1: '现在,在您的实验室',
    tilte2: '也可以轻松完成无创DNA产前检测',
    title3: '了解详细流程',
    click_url: 'http://www.berrygenomics.com/products/nextseq-cn500/cn500test/',
    url: require('./image/4.jpg')

    },
    {
    x: 0,
    title1: '现在,在您的实验室',
    tilte2: '也可以轻松完成无创DNA产前检测',
    title3: '了解详细流程',
    click_url: 'http://www.berrygenomics.com/products/nextseq-cn500/cn500test/',
    url: require('./image/5.jpg')
    },
    {
    x: 0,
    title1: '现在,在您的实验室',
    tilte2: '也可以轻松完成无创DNA产前检测',
    title3: '了解详细流程',
    click_url: 'http://www.berrygenomics.com/products/nextseq-cn500/cn500test/',
    url: require('./image/6.jpg')
    },
    {
    x: 0,
    title1: '现在,在您的实验室',
    tilte2: '也可以轻松完成无创DNA产前检测',
    title3: '了解详细流程',
    click_url: 'http://www.berrygenomics.com/products/nextseq-cn500/cn500test/',
    url: require('./image/7.jpg')
    },
    {
    x: 0,
    title1: '现在,在您的实验室',
    tilte2: '也可以轻松完成无创DNA产前检测',
    title3: '了解详细流程',
    click_url: 'http://www.berrygenomics.com/products/nextseq-cn500/cn500test/',
    url: require('./image/8.jpg')
    }
    ],
    itemList: []
    }
    },
    mounted: function () {
    ani = this.$refs.root.querySelector('.sliderPanel')
    count = this.imgArray.length
    this.setIndex(selectIndex)
    // 自动滚动切换图片
    this.slideAuto(second)
    },
    methods: {
    clickLeft: function () {
    if (!canClick) return false
    autoDirection = Direction.left
    this.slideAuto(second)
    this.moveLeftAni()
    canClick = false
    },
    clickRight: function () {
    if (!canClick) return false
    autoDirection = Direction.right
    this.slideAuto(second)
    this.moveRightAni()
    canClick = false
    },
    slideRight: function () {
    selectIndex++
    if (selectIndex + 1 > count) {
    selectIndex = 0
    } else if (selectIndex < 0) {
    selectIndex = count - 1
    }
    this.setIndex(selectIndex)
    },
    slideLeft: function () {
    selectIndex--
    if (selectIndex + 1 > count) {
    selectIndex = 0
    } else if (selectIndex < 0) {
    selectIndex = count - 1
    }
    this.setIndex(selectIndex)
    },
    clickSliderCircle: function (index) {
    this.slideAuto(second)
    this.setIndexPre(index)
    },
    setIndexPre: function (index) {
    if (!canClick) return false
    canClick = false
    if (index === selectIndex) return
    var leftIndex = index
    var centerIndex = selectIndex
    var rightIndex = index
    for (var i = 0; i < count; i++) {
    if (i === selectIndex) {
    this.imgArray[i].selected = true
    } else {
    this.imgArray[i].selecte = false
    }
    }
    left = this.imgArray[leftIndex]
    center = this.imgArray[centerIndex]
    right = this.imgArray[rightIndex]
    left = JSON.parse(JSON.stringify(left))
    right = JSON.parse(JSON.stringify(right))
    left.x = -SCREEN_WIDTH
    center.x = 0
    right.x = SCREEN_WIDTH
    left.index = leftIndex
    center.index = centerIndex
    right.index = rightIndex
    this.itemList = [left, center, right]
    if (index > selectIndex) {
    autoDirection = Direction.right;
    (function (obj) {
    obj.anicompted(
    'scale(' + debugScale + ') translateX(' + 0 + 'px)',
    'scale(' + debugScale + ') translateX(' + -SCREEN_WIDTH + 'px)',
    function () {
    obj.setIndex(index)
    })
    })(this)
    // 右移
    } else if (index < selectIndex) {
    // 左移
    autoDirection = Direction.left;
    (function (obj) {
    obj.anicompted(
    'scale(' + debugScale + ') translateX(' + 0 + 'px)',
    'scale(' + debugScale + ') translateX(' + SCREEN_WIDTH + 'px)',
    function () {
    obj.setIndex(index)
    })
    })(this)
    }
    },
    setIndex: function (index) {
    var leftIndex = index - 1
    var centerIndex = index
    var rightIndex = index + 1
    if (index <= 0) {
    index = 0
    leftIndex = count - 1
    centerIndex = index
    rightIndex = index + 1
    } else if (index >= count - 1) {
    index = count - 1
    leftIndex = index - 1
    centerIndex = index
    rightIndex = 0
    }
    selectIndex = index
    for (var i = 0; i < count; i++) {
    if (i === selectIndex) {
    this.imgArray[i].selected = true
    } else {
    this.imgArray[i].selected = false
    }
    }
    left = this.imgArray[leftIndex]
    center = this.imgArray[centerIndex]
    right = this.imgArray[rightIndex]
    left.x = -SCREEN_WIDTH
    center.x = 0
    right.x = SCREEN_WIDTH
    left.index = leftIndex
    center.index = centerIndex
    right.index = rightIndex
    this.itemList = [left, center, right]
    },
    slideAuto: function () {
    clearInterval(timer);
    (function (obj) {
    timer = setInterval(function () {
    if (autoDirection === Direction.left) {
    obj.moveLeftAni()
    } else {
    obj.moveRightAni()
    }
    }, second * 1000)
    })(this)
    },
    moveLeftAni: function () {
    (function (obj) {
    obj.anicompted(
    'scale(' + debugScale + ') translateX(' + 0 + 'px)',
    'scale(' + debugScale + ') translateX(' + SCREEN_WIDTH + 'px)',
    function () {
    obj.slideLeft()
    })
    })(this)
    },
    moveRightAni: function () {
    (function (obj) {
    obj.anicompted(
    'scale(' + debugScale + ') translateX(' + 0 + 'px)',
    'scale(' + debugScale + ') translateX(' + -SCREEN_WIDTH + 'px)',
    function () {
    obj.slideRight()
    })
    })(this)
    },
    anicompted: function (fromStr, toStr, callBack) {
    var handler = null
    var obj = this
    handler = function () {
    ani.removeEventListener('webkitTransitionEnd', handler, false)
    callBack()
    obj.ani = false
    obj.translateX = fromStr
    canClick = true
    }
    ani.removeEventListener('webkitTransitionEnd', handler, false)
    ani.addEventListener('webkitTransitionEnd', handler, false)
    this.ani = true
    this.translateX = toStr
    }
    }

    })
    </script>
    <style scoped>
    .transitionAni{
    transition: all 0.8s cubic-bezier(.23,1,.32,1);
    /*transition: transform 1s;*/
    }
    .arrowLeft{
    transition: all 0.4s ease;
    60px;
    height: 60px;
    position: absolute;
    left: 15px;
    top: 50%;
    margin-top: -30px;
    background: rgba(0,0,0,0.6);
    border-radius: 6px;
    }
    .arrowLeft:hover{
    background: rgba(0,0,0,0.8);
    transform: scale(1.1);
    }
    .arrowRight{
    transition: all 0.4s ease;
    60px;
    height: 60px;
    position: absolute;
    right: 15px;
    top: 50%;
    margin-top: -30px;
    background: rgba(0,0,0,0.6);
    border-radius: 6px;
    }
    .arrowRight:hover{
    background: rgba(0,0,0,0.8);
    transform: scale(1.1);
    }
    .sliderBar{
    100%;height: auto;position: absolute;bottom: 50px;
    }
    .circle{
    15px;
    height: 15px;
    background: rgba(0,0,0,0.7);
    border-radius: 50%;
    display: table-cell;
    margin-right: 3px;
    transition: all 0.5s ease;
    }
    .circle:hover{
    background: #C7015C;
    transform: scale(1.15);
    }
    .circleSelected{
    background: #C7015C;
    transform: scale(1.15);
    }
    .arrowBottom{
    80px;
    height: 50px;
    position: absolute;
    bottom: -15px;
    left: 50%;
    margin-left: -40px;
    background: #C7015C;
    border-top-left-radius: 10px;
    border-top-right-radius: 10px;
    transition: all 0.5s ease-out;
    }
    .arrowBottom:hover{
    transform: translateY(-10px);
    background: deeppink;
    }
    .picbox{
    100%;
    height: 100%;
    position: absolute;
    top: 0;
    overflow: hidden;
    /*transform: scale(0.9);*/
    /*opacity: 0.2;*/
    transition: all 0.45s ease;
    }
    /*@keyframes arrowOut-animation {*/
    /*from{*/
    /*transform: translateY(0px);*/
    /*}*/
    /*to{*/
    /*transform: translateY(15px);*/
    /*!*200px;*!*/
    /*}*/
    /*}*/
    /*@keyframes arrowIn-animation {*/
    /*from{*/
    /*transform: translateY(15px);*/
    /*}*/
    /*to{*/
    /*transform: translateY(0px);*/
    /*!*height: 200px;*!*/
    /*}*/
    /*}*/
    /*.arrowOut{*/
    /*animation: arrowOut-animation;*/
    /*animation-duration: 0.5s;*/
    /*animation-timing-function: ease-out;*/
    /*animation-fill-mode:forwards;*/
    /*}*/
    /*.arrowIn{*/
    /*animation: arrowIn-animation;*/
    /*animation-duration: 0.5s;*/
    /*animation-timing-function:ease-out;*/
    /*animation-fill-mode:forwards;*/

    /*}*/
    </style>
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  • 原文地址:https://www.cnblogs.com/lizhiwei8/p/10314460.html
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