效果图
slider.html
<!DOCTYPE html> <html lang="en"head> meta charset="UTF-8"title>slider</link rel="stylesheet" href="../css/base.css"="../css/slider.css"bodydiv class="slider"> ="slider-img slide-fade"> a href="#" class="slider-img-item"><img src="../img/focus-slider/1.png"></a="../img/focus-slider/2.png"="../img/focus-slider/3.png"="../img/focus-slider/4.png"divol ="slider-tip"li ="slider-tip-item text-hidden fl">1li>2>3>4ol="javascript:;"="slider-arrow slider-arrow-left"><="slider-arrow slider-arrow-right">> script ="../js/jquery.js"script="../js/transition.js"="../js/showhide.js"="../js/slider.js"> //传入自定义参数 $(".slider).Slider({ css3:true,js:fade0从哪张开始轮播 interval:1000300毫秒的速度轮播 }); 接收消息,实现按需加载(幻灯片接收消息,父元素实现事件代理) .slider-img).on(slider-showfunction(e,i,elem){ console.log(i);里面的事件根据自己需求来写 }); html>
base.css https://www.cnblogs.com/chenyingying0/p/12363689.html
slider.css
/*showhide*/ .fadeOut{ opacity: 0; visibility: hidden; } .slideUpDownCollapse{ height:0 !important;避免因为优先级不够而无法生效*/ padding-top:0 !important; padding-bottom:0 !important; } .slideLeftRightCollapse{ width: padding-left: padding-right: .fl{ float:left; } .fr{right; } 提取出过渡样式,可公用 .transition{ -webkit-transition:all .5s; -moz-transition: -ms-transition: -o-transition: transition:all .5s; } 文字隐藏 .text-hidden{ text-indent:-9999px; overflow:hidden; } .slider{728px;504px; position: relative; .slider-img{100%; relative; } .slide-fade .slider-img-item{ absolute; top:0; left: display: none; } .slider-tip{12px;78px; bottom:24px;50%; margin-left:-36px; } .slider-tip-item{ width:8px; border:2px solid #e4e8eb; background-color: #313a43; margin-right:10px; border-radius:50%; } .slider-tip-item-active{#e4e8eb;2px solid #313a43; } .slider-tip-item:last-child{0; } .slider-arrow{ display: none;30px;40px; line-height: margin-top:-20px;rgba(0,.5); color: text-align: center; font-size:20px; font-family:simsum; } .slider-arrow-left{ .slider-arrow-right{ right:0; }
transition.js https://www.cnblogs.com/chenyingying0/p/12363649.html
showhide.js https://www.cnblogs.com/chenyingying0/p/12363707.html
slider.js
(function($){ 'use strict';//使用严格模式 构造函数形式 Slider(elem,options){ 保存到this中才能公用 this.elem=elem; this.picBox=this.elem.find(".slider-img"); this.options=options; this.pics=this.elem.find(".slider-img-item"this.tips=this.elem.find(".slider-tip-item"this.arrows=this.elem.find(".slider-arrow"); this.curIdx=this._getIdx(this.options.activeIdx); this.size=.pics.length; this._init();初始化,下划线开头通常约定为仅供内部使用 } 默认参数 Slider.defaults={ css3:false"fade"从哪张开始轮播 interval:0默认没有自动轮播 }; 初始化 Slider.prototype._init=(){ var self=; 显示指定圆点 this.tips.removeClass("slider-tip-item-active"this.tips.eq(this.curIdx).addClass("slider-tip-item-active"指定动画方式 to if(this.options.animation==="slide"){ this.picBox.addClass("slide-slide"); this.to=._slide; }else{ this.picBox.addClass("slide-fade"显示指定图片 this.pics.eq(.curIdx).show(); ._fade; } showHide init控制幻灯片的显示隐藏 this.pics.showHide(.options); 鼠标移入显示左右箭头 this.elem.hover((){ self.arrows.show(); },(){ self.arrows.hide(); }).on("click",".slider-arrow-left",1)">(){ 事件代理 self.to(self._getIdx(self.curIdx-1)); }).on("click",".slider-arrow-right",1)">(){ self.to(self._getIdx(self.curIdx+1(){ self.to(self._getIdx(self.tips.index())); self.tips.index(this)是当前点击的圆点的索引 }); auto this.options.interval && !isNaN(Number(.options.interval))){ 鼠标移入时暂停自动切换 this.elem.hover($.proxy(this.pause,1)">this),$.proxy(this.auto,1)">)); self.auto(); } 发送消息(调用showhide模块的是幻灯片元素,因此发送接收消息的也是幻灯片元素) this.pics.on("show shown hide hidden",1)">(e){ self.pics.trigger("slider-"+e.type,[self.pics.index(]); 返回的数组包含当前图片的索引+触发事件的对象 }) }; 获取合理的索引 Slider.prototype._getIdx=(index){ if(isNaN(Number(index))) return 0; if(Number(index)<0) return this.size-1if(Number(index)>this.size-1) return index; } 淡入淡出方式 Slider.prototype._fade=this.curIdx===index) return;点击当前索引不再切换 this.curIdx).showHide("hide"this.pics.eq(index).showHide("show"this.curIdx).removeClass("slider-tip-item-active"this.tips.eq(index).addClass("slider-tip-item-active"index; } 滑动方式 Slider.prototype._slide=(){ } 自动 Slider.prototype.auto=this.timer=setInterval()); },self.options.interval); } 停止 Slider.prototype.pause=(){ clearInterval(.timer); } 插件形式 $.fn.extend({ Slider:(opt){ return this可以返回对象,方便连写 this.each((){ var ui=$(); var slider=ui.data("slider"opt是参数对象 var options=$.extend({},Slider.defaults,ui.data(),1)">typeof opt==="object"&&opt); 单例:一个DOM元素对应一个实例,如果已经存在则不需要反复实例化 if(!slider){ slider=new Slider(ui,options); ui.data("slider"opt是show或者hide typeof slider[opt]==="function"){ Slider[opt](); } }); } }); })(jQuery); 为了防止$符发生冲突,将jQuery作为参数传入,则$符作为内部变量,不会发生冲突