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定义一个banner.js文件,代码如下
;window.requestAnimationFrame = window.requestAnimationFrame||function(a){return setTimeout(a,1000/60)}; window.cancelAnimationFrame = window.cancelAnimationFrame||clearTimeout; var FragmentBanner = function(option) { //实例化时,可传的参数 this.whiteList = ['container','controller','size','imgs','size','grid','index','fnTime','boxTime','type']; //容器将包容控制器 this.container = '.banner'; //默认的控制器 this.controller = { view : '.banner-view', btn : '.banner-btn', num : '.banner-number', progre : '.banner-progres' }; //栅格 行*列 this.grid = { line : 5, list : 10 }; //容器的大小 this.size = { width : 1200, height : 675, }; //切换类型 this.type = 1; //索引位置 this.index = 0; //函数每次切换时间 this.fnTime = 5000; //栅格每次运动时间 this.boxTime = 2000; //栅格运动结束的时间 this.activeTime = new Date(); for(var a = 0,attrLenght = this.whiteList.length; a < attrLenght;a++){ var attr = this.whiteList[a]; if(option[attr] != undefined){ this[attr] = option[attr]; } } for(var i in option){ if(this.whiteList[i] !== undefined){ ; } } init(); } function setIndex(){ this.index %= this.imgs.length; this.index = (this.index < 0) "'+this.imgs[this.index]+'")', backgroundSize : this.size.width + 'px ' + this.size.height +'px', backgroundPosition : w * -j+'px ' + h * -i+'px' }); this.elem.view.appendChild(newI); this.elem.viewBox.push(newI); } } //按钮动作 for (var b = 1; b >= 0; b--) { var oB = document.createElement('span'); (b) "alpha(opacity="+ (json[c]*100) +")"; }else{ obj.style[c] = json[c]; } } return this; } function show(order){ order = order || {}; if(new Date() >= this.activeTime){ this.elem.numFind[this.index].className = ''; // 下次播放动画时候的进度条 setCss(this.progre[1],{width : 0}) anime(this.progre[1],{ width : this.size.width },this.fnTime,function(){ show({ switch : true, change : true }); }.bind(this)); var status = true, activeTime = 0; for( var i = 0,iL = this.elem.viewBox.length;i < iL;i++ ){ var startTime = getTypeTime(), endTime = getTypeTime(), obj = this.elem.viewBox[i]; activeTime = Math.max(activeTime,startTime[1] + endTime[1]); anime(obj,{ left : Math.ceil(Math.random() * this.size.width * 2 - this.size.width), top : Math.ceil(Math.random() * this.size.height * 2 - this.size.height), opacity: 0 }, startTime[0] ,function(obj){ if(order.switch && status){ if(/number/i.test(typeof order.change)){ this.index = order.change; }else{ (order.change) "'+this.imgs[this.index]+'")'}) anime(obj,{ left : 0, top : 0, opacity : 1 },endTime[0]); }.bind(this,obj)); } //栅格结束运动的时间 this.activeTime = new Date(new Date().getTime() + activeTime); setCss(this.progre[0],{width : 0}) anime(this.progre[0],{width : this.size.width},activeTime); } } function getTypeTime(){ var timer = new Array(); switch(this.type){ case 1: timer.push(this.boxTime / 4 + Math.random() * this.boxTime / 4); timer.push(timer[0]); break; default: timer.push([Math.random() * this.boxTime / 5,this.boxTime / 10 * 3]); timer.push(timer[0][0] + timer[0][1]); break; } return timer; } function anime(obj,attr,endTime,callback) { (obj.timer) && cancelAnimationFrame(obj.timer); var cssJosn = obj.currentStyle || getComputedStyle(obj,null), start = {},end = {},goTime; //设置初始属性值和结束属性值 for(var key in attr){ if(attr[key] != parseFloat(cssJosn[key])){ start[key] = parseFloat(cssJosn[key]); end[key] = attr[key] - start[key]; } } goTime = new Date(); if(endTime instanceof Array){ (function delayFn(){ if((new Date() - goTime) >= endTime[0]){ endTime = endTime[1]; goTime = new Date(); ref(); }else{ obj.timer = requestAnimationFrame(delayFn); } })(); }else{ ref(); } function ref(){ var prop = (new Date() - goTime) / endTime; (prop >= 1) "alpha(opacity="+ (val*100) +")"; }else{ obj.style[key] = val+'px'; } } (prop === 1) && callback && callback.call(obj); }; } module.exports.FragmentBanner = FragmentBanner;
在需要的组件里面引入改js
import {FragmentBanner} from '../../../static/js/banner.js'
使用方式如下
// html代码 <header class="js_header mod-header"> <div class="banner" id="banner1" style="margin: 50px auto;margin-bottom:0px"> <div class="banner-view"></div> <div class="banner-btn"></div> <div class="banner-number"></div> <div class="banner-progres"></div> </div> </header> //css样式 <style> .banner{ position: relative; overflow: hidden; } .banner-view{ position: relative; height: 100%; z-index: 999; background-color: #090b22; background-repeat: no-repeat; } .banner-view i{ position: relative; display: block; float: left; background-repeat: no-repeat; } .banner-btn{ position: absolute; width: 100%; height: 0; top: 45%; font-family: "宋体"; font-size: 20px; z-index: 999; } .banner-btn span{ display: block; float: left; width: 50px; line-height: 50px; text-align: center; background-color: #27cfc3; color: white; cursor: pointer; font-weight: 800; /* position: absolute; right:-150px; */ /* background-image: url(../../../static/images/style-index.d437fb5e.png); background-position: -268px -18px; width: 56px; height: 56px; */ } /* .banner-btn span:first-child{ left: -150px; } */ .banner-btn span:hover{ background-color: rgba(0,0,0,0.6); } .banner-btn span + span{ float: right; } .banner-number{ position: absolute; bottom: 35px; width: 100%; height: 0; font-size: 0; text-align: center; z-index: 1000; } .banner-number > *{ display: inline-block; border: 2px solid #fff; border-radius: 50%; margin: 0 8px; width: 10px; height: 10px; background-color: #00c3ff; cursor: pointer; } .banner-number > *:hover, .banner-number > *.on{ background-color: #ffc300; } .banner-progres{ width: 100%; position: absolute; bottom: 0; height: 3px; z-index: 1000; } .banner-progres i{ position: absolute; left: 0; top: 0; border-radius: 3px; display: block; height: 100%; width: 0; } </style> // js的引用 this.obj = { container : '#banner1',//选择容器 必选 imgs : ['https://www.xuanfengge.com/wp-content/themes/lee3.0/dist/img/banner/1.0bd56759.jpg','https://www.xuanfengge.com/wp-content/themes/lee3.0/dist/img/banner/6.c6b4ec87.jpg'],//图片集合 必选 size : { width : 1200, height : 300 },//容器的大小 可选 //行数与列数 可选 grid : { line : 12, list : 14 }, index: 0,//图片集合的索引位置 可选 type : 2,//切换类型 1 , 2 可选 boxTime : 5000,//小方块来回运动的时长 可选 fnTime : 10000//banner切换的时长 可选 } mounted () { FragmentBanner(this.obj ); }
总结
以上所述是小编给大家介绍的vue自定义js图片碎片轮播图切换效果的实现代码,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对网站的支持!
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