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小编这次要给大家分享的是Vue如何实现图片轮播组件,文章内容丰富,感兴趣的小伙伴可以来了解一下,希望大家阅读完这篇文章之后能够有所收获。
1、先看效果:
熟悉的图片轮播,只要是个网站,百分之90以上会有个图片轮播。我认为使用图片轮播。
第一可以给人以一种美观的感受,而不会显得网站那么呆板,
第二可以增加显示内容,同样的区域可以显示更多内容。
2、每学一个新东西 ,图片轮播都是很好的练手案例,而且,也很实用。
3、基本要求:页面加载,自动播放。鼠标悬停,停止播放。鼠标离开,继续播放
点击左右箭头切换上一张,下一张图片。
下方小圆点显示当前位第几张图片。
4、使用Vue实现
5、示例代码
结构html:
<template> <div id="slider"> <div class="window" @mouseover="stop" @mouseleave="play"> <ul class="container" :> <li> <img : :src="sliders[sliders.length - 1].img" > </li> <li v-for="(item, index) in sliders" :key="index"> <img : :src="item.img" > </li> <li> <img : :src="sliders[0].img" > </li> </ul> <ul class="direction"> <li class="left" @click="move(600, 1, speed)"> <svg class="icon" width="30px" height="30.00px" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg"><path fill="#ffffff" d="M481.233 904c8.189 0 16.379-3.124 22.628-9.372 12.496-12.497 12.496-32.759 0-45.256L166.488 512l337.373-337.373c12.496-12.497 12.496-32.758 0-45.255-12.498-12.497-32.758-12.497-45.256 0l-360 360c-12.496 12.497-12.496 32.758 0 45.255l360 360c6.249 6.249 14.439 9.373 22.628 9.373z" /></svg> </li> <li class="right" @click="move(600, -1, speed)"> <svg class="icon" width="30px" height="30.00px" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg"><path fill="#ffffff" d="M557.179 904c-8.189 0-16.379-3.124-22.628-9.372-12.496-12.497-12.496-32.759 0-45.256L871.924 512 534.551 174.627c-12.496-12.497-12.496-32.758 0-45.255 12.498-12.497 32.758-12.497 45.256 0l360 360c12.496 12.497 12.496 32.758 0 45.255l-360 360c-6.249 6.249-14.439 9.373-22.628 9.373z" /></svg> </li> </ul> <ul class="dots"> <li v-for="(dot, i) in sliders" :key="i" :class="{dotted: i === (currentIndex-1)}" @click = jump(i+1) > </li> </ul> </div> </div> </template>
CSS部分:
*{ box-sizing: border-box; margin:0; padding:0; } ol,ul{ list-style: none; } #slider{ text-align: center; } .window{ position:relative; width:600px; height:400px; margin:0 auto; overflow:hidden; } .container{ display:flex; position:absolute; } .left, .right{ position:absolute; top:50%; transform:translateY(-50%); width:50px; height:50px; background-color:rgba(0,0,0,.3); border-radius:50%; cursor:pointer; } .left{ left:3%; padding-left:12px; padding-top:10px; } .right{ right:3%; padding-right:12px; padding-top:10px; } img{ user-select: none; } .dots{ position:absolute; bottom:10px; left:50%; transform:translateX(-50%); } .dots li{ display:inline-block; width:15px; height:15px; margin:0 3px; border:1px solid white; border-radius:50%; background-color:#333; cursor:pointer; } .dots .dotted{ background-color:orange; }
JavaScript部分:
script> export default { name: 'slider', props: { initialSpeed: { type: Number, default: 30 }, initialInterval: { type: Number, default: 3 } }, data () { return { sliders:[ { img:'http://img.hb.aicdn.com/adbde61e4343dedd21e97ea7f22666825a8db7d077ffe-qn8Pjn_fw658' }, { img:'http://img.hb.aicdn.com/adeed7d28df6e776c2fa6032579c697381d1a82b7fe00-fwRqgn_fw658' }, { img:'http://img.hb.aicdn.com/ab7f48509b3c0353017d9a85ef1d12400c9b2724540d4-p3zouo_fw658' }, { img:'http://img.hb.aicdn.com/60f788fc2a846192f224b9e6d4904b30e54926211d3d67-ACFJ9G_fw658' }, { img:'http://img.hb.aicdn.com/22ded455284aab361b8d2056e82f74a891a019704296a-PSraEB_fw658' }, ], imgWidth:600, currentIndex:1, distance:-600, transitionEnd: true, speed: this.initialSpeed } }, computed:{ containerStyle() { return { transform:`translate3d(${this.distance}px, 0, 0)` } }, interval() { return this.initialInterval * 1000 } }, mounted() { this.init() }, methods:{ init() { this.play() window.onblur = function() { this.stop() }.bind(this) window.onfocus = function() { this.play() }.bind(this) }, move(offset, direction, speed) { console.log(speed) if (!this.transitionEnd) return this.transitionEnd = false direction === -1 ? this.currentIndex += offset/600 : this.currentIndex -= offset/600 if (this.currentIndex > 5) this.currentIndex = 1 if (this.currentIndex < 1) this.currentIndex = 5 const destination = this.distance + offset * direction this.animate(destination, direction, speed) }, animate(des, direc, speed) { if (this.temp) { window.clearInterval(this.temp); this.temp = null ; } this.temp = window.setInterval(() => { if ((direc === -1 && des < this.distance) || (direc === 1 && des > this.distance)) { this.distance += speed * direc } else { this.transitionEnd = true window.clearInterval(this.temp) this.distance = des if (des < -3000) this.distance = -600 if (des > -600) this.distance = -3000 } }, 20) }, jump(index) { const direction = index - this.currentIndex >= 0 ? -1 : 1; const offset = Math.abs(index - this.currentIndex) * 600; const jumpSpeed = Math.abs(index - this.currentIndex) === 0 ? this.speed : Math.abs(index - this.currentIndex) * this.speed ; this.move(offset, direction, jumpSpeed) }, play() { if (this.timer) { window.clearInterval(this.timer) this.timer = null } this.timer = window.setInterval(() => { this.move(600, -1, this.speed) }, this.interval) }, stop() { window.clearInterval(this.timer) this.timer = null } } } </script>
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