jquery实现走马灯特效实例(扑克牌切换效果)
更新时间:2022年02月20日 16:17:19 作者:霸道猿总
本文主要介绍了jquery实现走马灯特效实例(扑克牌切换效果),文中通过示例代码介绍的非常详细,具有一定的参考价值,感兴趣的小伙伴们可以参考一下
话不多说,先上大致效果:
本着程序员的开源精神,代码奉上:
html代码:
<div class="main-box"> <div class="poker_box"> <div class="pokerCaroursel poker-content" data-setting='{ "width":1094, "height":338, "pokerWidth":488, "pokerHeight":338, "scale":0.85, "speed": 500, "autoPlay":true, "delay":2000, "verticalAlign":"middle" }'> <!-- 向左按钮 --> <div class="poker-btn poker-prev-btn"></div> <ul class="poker-list"> <!-- 图片张数最好是基数,这样呈现的画面才好看 --> <li class="poker-item poker-rad"> <div class="item"> <a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img class="tabImg" src="images/01.jpg"></a> <span class="poker-item-title">图一</span> </div> </li> <li class="poker-item poker-rad"> <div class="item"> <a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img class="tabImg" src="images/02.jpg"></a> <span class="poker-item-title">图二</span> </div> </li> <li class="poker-item poker-rad"> <div class="item"> <a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><img class="tabImg" src="images/03.jpg"></a> <span class="poker-item-title">图三</span> </div> </li> </ul> <!-- 向右按钮 --> <div class="poker-btn poker-next-btn"></div> </div> </div> </div>
注意:
- 类名不要随意更改(否则插件里面的也要更改),替换图片地址即可。
- data-setting属性记得按照以上格式设置,不然可能报错
script代码:
<script src="jquery.js"></script> <script src="jquery.pokerCarousel.js"></script> <script> pokerCaroursel.init($('.pokerCaroursel')) </script>
注意:
要记得先引入jquery.js文件(可去官网下载:https://jquery.com/download/),再引入jquery.pokerCarousel.js文件
jquery.pokerCarousel.js文件完整代码:
var MIDDLE_PIC_POS = 1 //计算如何用最短的距离移动到目标 //由于有两种移动方式,向左边移动或者像右边移动,只需要在这两种方式中选择一个小的就行了 ;(function($){ var pokerCaroursel = function (caroursel){ var self = this; this.caroursel = caroursel; this.pokerList = caroursel.find(".poker-list"); this.pokerItems = caroursel.find(".poker-item"); this.firstpokerItem = this.pokerItems.first(); this.lastpokerItem = this.pokerItems.last(); this.prevBtn = this.caroursel.find(".poker-prev-btn"); this.nextBtn = this.caroursel.find(".poker-next-btn"); this.buttonItems = caroursel.find(".tabBtn"); //每个移动元素的位置索引,用于记录每个元素当前的位置,在每次移动的时候,该数组的值都会发生变化 //数组的下标对应li元素的位置索引 this.curPositions = []; for(var i = 0;i<this.pokerItems.length;++i){ this.curPositions[i] = i+1; } this.setting = { "width":"1106", "height":"340", "pokerWidth":"488", "pokerHeight":"340", "scale":"0.8", "speed":"1000", "isAutoplay":"true", "dealy":"2000" }; $.extend(this.setting,this.getSetting()); this.setFirstPosition(); this.setSlicePosition(); this.refreshCss(); this.rotateFlag = true; this.prevBtn.bind("click",function(){ if(self.rotateFlag){ self.rotateFlag = false; self.rotateAnimate("left") } }); this.nextBtn.bind("click",function(){ if(self.rotateFlag){ self.rotateFlag = false; self.rotateAnimate("right") } }); //绑定位置按钮事件 this.buttonItems.each(function(index){ var _this = $(this); _this.click(function(){ self.clickPosButtonIndex(index); }) }); if(this.setting.isAutoplay){ this.autoPlay(); this.caroursel.hover(function(){clearInterval(self.timer)},function(){self.autoPlay()}) } }; pokerCaroursel.prototype = { autoPlay:function(){ var that = this; this.timer = window.setInterval(function(){ that.nextBtn.click(); },that.setting.dealy) }, refreshCss:function(){ var that= this; var curFirstPos;//当前位于中间的li元素位置 this.buttonItems.each(function(index){ var _this = $(this); var curPos = that.curPositions[index]; if(curPos == 1){ _this.addClass('poker-btn-active'); } else{ _this.removeClass('poker-btn-active'); } }); }, //记录每次移动的状态 refreshPositions:function(offset){ for(var i = 0; i < this.curPositions.length; ++i) { var nextPos = this.curPositions[i] + offset; if (nextPos > this.curPositions.length) {//移动超过末尾,则位置变成到开头 nextPos = nextPos - this.curPositions.length; }else if (nextPos < 1) {向左边移动已经移动到开始位置更左边,则位置变成结束 nextPos = this.curPositions.length + nextPos; } this.curPositions[i] = nextPos; } //console.log('after refreshPositions',this.curPositions); this.refreshCss(); }, cal_move_path:function(curPos,desPos,arraySize) { if(curPos == desPos) return null; //往左边移动 var goRightSteps; var goLeftSteps; var retDirect; var retStep; if(curPos > desPos){ goRightSteps = curPos - desPos; goLeftSteps = desPos + (arraySize - curPos); retDirect = (goRightSteps <= goLeftSteps) ? "left":"right"; return {"direct":retDirect,"step":Math.min(goLeftSteps,goRightSteps)}; } }, //点击位置按钮,根据点击的按钮索引 决定向左还是向右移动[因为只有三个位置,该方法能够仅靠向左或向右就能将 //指定的位置移动到中间] clickPosButtonIndex:function(index){ var self = this; if(self.rotateFlag == false) {//目前正在移动等移动结束后才能进入 return; } var curPos = this.curPositions[index]; var retPath = this.cal_move_path(curPos,MIDDLE_PIC_POS,this.curPositions.length); if (retPath == null){ return; } var direct = retPath.direct; var step = retPath.step; self.rotateFlag = false; self.rotateAnimate(direct,step) }, rotateAnimate:function(type,step){ step = step || 1; var that = this; var zIndexArr = []; var speed = that.setting.speed; this.pokerItems.each(function(){ var self = $(this); var destPic = null; var curPic = self; for (var i = 0; i < step;++i){ if(type == "left"){// 向左边移动, 下一张图片在自己的右边,所以用next() destPic = curPic.next().get(0)?curPic.next():that.firstpokerItem; } else{ destPic = curPic.prev().get(0)?curPic.prev():that.lastpokerItem; } curPic = destPic; } var width = destPic.css("width"); var height = destPic.css("height"); var zIndex = destPic.css("zIndex"); var opacity = destPic.css("opacity"); var left = destPic.css("left"); var top = destPic.css("top"); zIndexArr.push(zIndex); self.animate({ "width":width, "height":height, "left":left, "opacity":opacity, "top":top },speed,function(){ that.rotateFlag = true; }); }); this.pokerItems.each(function(i){ $(this).css("zIndex",zIndexArr[i]); }); if (type == 'right'){ this.refreshPositions(-step); }else{ this.refreshPositions(step); } }, setFirstPosition:function(){ this.caroursel.css({"width":this.setting.width,"height":this.setting.height}); this.pokerList.css({"width":this.setting.width,"height":this.setting.height}); var width = (this.setting.width - this.setting.pokerWidth) / 2; console.log(this.pokerItems.length) this.prevBtn.css({"width":width , "height":this.setting.height,"zIndex":Math.ceil(this.pokerItems.length/2)}); this.nextBtn.css({"width":width , "height":this.setting.height,"zIndex":Math.ceil(this.pokerItems.length/2)}); this.firstpokerItem.css({ "width":this.setting.pokerWidth, "height":this.setting.pokerHeight, "left":width, "zIndex":Math.ceil(this.pokerItems.length/2), "top":this.setVertialType(this.setting.pokerHeight) }); }, setSlicePosition:function(){ var _self = this; var sliceItems = this.pokerItems.slice(1), level = Math.floor(this.pokerItems.length/2), leftItems = sliceItems.slice(0,level), rightItems = sliceItems.slice(level), pokerWidth = this.setting.pokerWidth, pokerHeight = this.setting.pokerHeight, Btnwidth = (this.setting.width - this.setting.pokerWidth) / 2, gap = Btnwidth/level, containerWidth = this.setting.width; var i = 1; var leftWidth = pokerWidth; var leftHeight = pokerHeight; var zLoop1 = level; leftItems.each(function(index,item){ var scale = _self.setting.scale; if(index==1){ scale = scale*scale; } leftWidth = pokerWidth * scale; leftHeight = pokerHeight*scale; $(this).css({ "width":leftWidth, "height":leftHeight, "left": Btnwidth - i*gap, "zIndex":zLoop1--, "opacity":2/(i+1), "top":_self.setVertialType(leftHeight) }); i++; }); var j = level; var zLoop2 = 1; var rightWidth = pokerWidth; var rightHeight = pokerHeight; rightItems.each(function(index,item){ var scale = _self.setting.scale; if(index==0){ scale = scale*scale; } var rightWidth = pokerWidth * scale; var rightHeight = pokerHeight*scale; $(this).css({ "width":rightWidth, "height":rightHeight, "left": containerWidth -( Btnwidth - j*gap + rightWidth), "zIndex":zLoop2++, "opacity":2/(j+1), "top":_self.setVertialType(rightHeight) }); j--; }); }, getSetting:function(){ var settting = this.caroursel.attr("data-setting"); if(settting.length > 0){ return $.parseJSON(settting); }else{ return {}; } }, setVertialType:function(height){ var align = this.setting.align; if(align == "top") { return 0 }else if(align == "middle"){ return (this.setting.pokerHeight - height) / 2 }else if(align == "bottom"){ return this.setting.pokerHeight - height }else { return (this.setting.pokerHeight - height) / 2 } } }; pokerCaroursel.init = function (caroursels){ caroursels.each(function(index,item){ new pokerCaroursel($(this)); }) ; }; window["pokerCaroursel"] = pokerCaroursel; })(jQuery);// JavaScript Document
css代码:
.main-box{ height: 352px; width:1118px;position: absolute;top: 122px;left: 32px;} .poker_box h2 {font-size: 30px;color: #015293;font-weight: bold;text-align: center;} .poker_box h3 {font-size: 16px;color: #015293;margin: 10px 0 35px;text-align: center;} .poker-content {width: 1129px;position: relative;width: 100%;height: 350px!important;margin-left: auto;margin-right: auto;} .poker-content img {display: block;box-shadow: 0px 0px 10px #222222;-webkit-box-shadow: 0px 0px 10px #222222;border: 0;} .poker-content a, .poker-content img {display: block;width: 100%;height: 100%;border: none;} img {border: none;display: block;} .poker-content .poker-list {width: 1118px;height: 500px;} .poker-content .poker-list .poker-item {width: 200px;height: 350px;position: absolute;left: 0;top: 0;} .poker-rad{ border-radius: 20px; overflow: hidden;} .poker-rai{ border-radius: 20px; overflow: hidden;} .poker-content .poker-list .poker-item .item {position: relative;width: 100%;height: 100%;} .poker-content .poker-btn {position: absolute;top: 0;cursor: pointer;filter: opacity(.5) brightness(1);} .poker-content .poker-btn:hover {filter: opacity(1) brightness(2);} .poker-content .poker-prev-btn {left: 0;} .poker-content .poker-next-btn {right: 0;} .poker-item-title {background:rgba(42, 42, 42, 0.8) none repeat scroll 0 0 !important;/*实现FF背景透明,文字不透明*/filter:Alpha(opacity=80); background:#2a2a2a;text-align: center;color: #FFF;width: 100%;height: 52px;line-height: 52px;position: absolute;bottom: 0;text-indent: 29px}
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