包含3个文件:html、slider-H5.js、jquery.js(自行下载)。在html中可配置滑动参数。具体代码如下:
HTML代码:
<!DOCTYPE HTML> <html> <head> <meta charset="utf-8"/> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" /> <meta name="viewport" content = "width=device-width, target-densitydpi=high-dpi, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" /> <meta name="apple-mobile-web-app-capable" content="yes" /> <meta name="apple-mobile-web-app-status-bar-style" content="black" /> <meta content="telephone=no" name="format-detection" /> <meta name="keywords" content="seokeywords"/> <meta name="description" content="seodescription"/> <title>H5手指滑动切换图片</title> <style> ul,li{margin:0;padding:0;} @media screen and (min-width:240px) { html, body{ font-size:9px; } } @media screen and (min-width:320px) { html, body{ font-size:12px; } } @media screen and (min-width:480px) { html, body{ font-size:18px; } } @media screen and (min-width:640px) { html, body{ font-size:24px; } } @media screen and (min-width:960px) { html, body{ font-size:36px; } } div.imgbox{width:25rem;height:16.5rem;overflow:hidden;margin:0 auto;} div.imgbox ul{clear:both;width:75rem;display: inline-block;} div.imgbox ul li{float:left;width:25rem;height:16.5rem;overflow:hidden;text-align:center;} div.imgbox ul li img{width:24rem;height:16.5rem;} #page{color:red;} </style> </head> <body> <div class="imgbox"> <ul> <li><a href="#"><img src="http://y2.ifengimg.com/df84c07b46e03f8e/2014/0512/rdn_53708f3d8533e.jpg"></img></a></li> <li><a href="#"><img src="http://y2.ifengimg.com/df84c07b46e03f8e/2014/0512/rdn_53708f23aad06.jpg"></img></a></li> <li><a href="#"><img src="http://y2.ifengimg.com/df84c07b46e03f8e/2014/0512/rdn_53708f345282b.jpg"></img></a></li> </ul> </div> <div>这里通过回调显示当前滚动到多少页:<span id="page">0</span></div> <script src="jquery-1.10.2yuan.js"></script> <script src="slider-H5.js"></script> <script> (function(){ /* 注意:$.mggScrollImg返回的scrollImg对象上有 next,prev,go三个方法,可以实现外部对滚动索引的控制。 如:scrollImg.next();//会切换到下一张图片 scrollImg.go(0);//会切换到第一张图片 */ var scrollImg = $.mggScrollImg(‘.imgbox ul‘,{ loop : true,//循环切换 auto : true,//自动切换 auto_wait_time:3000,//轮播间隔 scroll_time:300,//滚动时长 callback : function(ind){//这里传过来的是索引值 $(‘#page‘).text(ind+1); } }); })() </script> </body> </html>
slider-H5.js 代码
(function($){ /* 图片滚动效果 @jQuery or @String box : 滚动列表jQuery对象或者选择器 如:滚动元素为li的外层ul @object config : { @Number width : 一次滚动宽度,默认为box里面第一个一级子元素宽度[如果子元素宽度不均匀则滚动效果会错乱] @Number size : 列表长度,默认为box里面所有一级子元素个数[如果size不等于一级子元素个数,则不支持循环滚动] @Boolean loop : 是否支持循环滚动 默认 true @Boolean auto : 是否自动滚动,支持自动滚动时必须支持循环滚动,否则设置无效,默认为true @Number auto_wait_time : 自动轮播一次时间间隔,默认为:3000ms @Function callback : 滚动完回调函数,参入一个参数当前滚动节点索引值 } */ function mggScrollImg(box,config){ this.box = $(box); this.config = $.extend({},config||{}); this.width = this.config.width||this.box.children().eq(0).width();//一次滚动的宽度 this.size = this.config.size||this.box.children().length; this.loop = this.config.loop!==undefined ? (this.config.loop==true ? true : false) : true;//默认能循环滚动 this.auto =this.config.auto!==undefined ? (this.config.auto==true ? true : false) : true;//默认自动滚动 this.auto_wait_time = this.config.auto_wait_time||3000;//轮播间隔 this.scroll_time =this.config.scroll_time!==undefined?(this.config.scroll_time>0?this.config.scroll_time:0) : 300;//滚动时长 this.minleft = -this.width*(this.size-1);//最小left值,注意是负数[不循环情况下的值] this.maxleft =0;//最大lfet值[不循环情况下的值] this.now_left = 0;//初始位置信息[不循环情况下的值] this.point_x = null;//记录一个x坐标 this.point_y = null;//记录一个y坐标 this.move_left = false;//记录向哪边滑动 this.index = 0; this.busy = false; this.timer; this.init(); } $.extend(mggScrollImg.prototype,{ init : function(){ this.bind_event(); this.init_loop(); this.auto_scroll(); }, bind_event : function(){ var self = this; self.box.bind(‘touchstart‘,function(e){ var t=e.touches?e.touches:e.originalEvent.targetTouches; if(t.length==1 && !self.busy){ self.point_x = t[0].screenX; self.point_y = t[0].screenY; } }).bind(‘touchmove‘,function(e){ var t=e.touches?e.touches:e.originalEvent.targetTouches; if(t.length==1 && !self.busy){ return self.move(t[0].screenX,t[0].screenY);//这里根据返回值觉得是否阻止默认touch事件 } }).bind(‘touchend‘,function(e){ !self.busy && self.move_end(); }); }, /* 初始化循环滚动,当一次性需要滚动多个子元素时,暂不支持循环滚动效果, 如果想实现一次性滚动多个子元素效果,可以通过页面结构实现 循环滚动思路:复制首尾节点到尾首 */ init_loop : function(){ if(this.box.children().length>1 && this.box.children().length == this.size && this.loop){//暂时只支持size和子节点数相等情况的循环 this.now_left = -this.width;//设置初始位置信息 this.minleft = -this.width*this.size;//最小left值 this.maxleft = -this.width; this.box.prepend(this.box.children().eq(this.size-1).clone()).append(this.box.children().eq(1).clone()).css(this.get_style(2)); this.box.css(‘width‘,this.width*(this.size+2)); }else{ this.loop = false; this.box.css(‘width‘,this.width*this.size); } }, auto_scroll : function(){//自动滚动 var self = this; if(!self.auto)return; clearTimeout(self.timer); self.timer = setTimeout(function(){ self.go_index(self.index+1); },self.auto_wait_time); }, go_index : function(ind){//滚动到指定索引页面 var self = this; if(self.busy)return; clearTimeout(self.timer); self.busy = true; if(self.loop){//如果循环 ind = ind<0?-1:ind; ind = ind>self.size?self.size:ind; }else{ ind = ind<0?0:ind; ind = ind>=self.size?(self.size-1):ind; } if(!self.loop && (self.now_left == -(self.width*ind))){ self.complete(ind); }else if(self.loop && (self.now_left == -self.width*(ind+1))){ self.complete(ind); }else{ if(ind == -1 || ind == self.size){//循环滚动边界 self.index = ind==-1?(self.size-1):0; self.now_left = ind==-1?0:-self.width*(self.size+1); }else{ self.index = ind; self.now_left = -(self.width*(self.index+(self.loop?1:0))); } self.box.css(this.get_style(1)); setTimeout(function(){ self.complete(ind); },self.scroll_time); } }, complete : function(ind){//动画完成回调 var self = this; self.busy = false; self.config.callback && self.config.callback(self.index); if(ind==-1){ self.now_left = self.minleft; }else if(ind==self.size){ self.now_left = self.maxleft; } self.box.css(this.get_style(2)); self.auto_scroll(); }, next : function(){//下一页滚动 if(!this.busy){ this.go_index(this.index+1); } }, prev : function(){//上一页滚动 if(!this.busy){ this.go_index(this.index-1); } }, move : function(point_x,point_y){//滑动屏幕处理函数 var changeX = point_x - (this.point_x===null?point_x:this.point_x), changeY = point_y - (this.point_y===null?point_y:this.point_y), marginleft = this.now_left, return_value = false, sin =changeY/Math.sqrt(changeX*changeX+changeY*changeY); this.now_left = marginleft+changeX; this.move_left = changeX<0; if(sin>Math.sin(Math.PI/3) || sin<-Math.sin(Math.PI/3)){//滑动屏幕角度范围:PI/3 -- 2PI/3 return_value = true;//不阻止默认行为 } this.point_x = point_x; this.point_y = point_y; this.box.css(this.get_style(2)); return return_value; }, move_end : function(){ var changeX = this.now_left%this.width,ind; if(this.now_left<this.minleft){//手指向左滑动 ind = this.index +1; }else if(this.now_left>this.maxleft){//手指向右滑动 ind = this.index-1; }else if(changeX!=0){ if(this.move_left){//手指向左滑动 ind = this.index+1; }else{//手指向右滑动 ind = this.index-1; } }else{ ind = this.index; } this.point_x = this.point_y = null; this.go_index(ind); }, /* 获取动画样式,要兼容更多浏览器,可以扩展该方法 @int fig : 1 动画 2 没动画 */ get_style : function(fig){ var x = this.now_left , time = fig==1?this.scroll_time:0; return { ‘-webkit-transition‘:‘-webkit-transform ‘+time+‘ms‘, ‘-webkit-transform‘:‘translate3d(‘+x+‘px,0,0)‘, ‘-webkit-backface-visibility‘: ‘hidden‘, ‘transition‘:‘transform ‘+time+‘ms‘, ‘transform‘:‘translate3d(‘+x+‘px,0,0)‘ }; } }); /* 这里对外提供调用接口,对外提供接口方法 next :下一页 prev :上一页 go :滚动到指定页 */ $.mggScrollImg = function(box,config){ var scrollImg = new mggScrollImg(box,config); return {//对外提供接口 next : function(){scrollImg.next();}, prev : function(){scrollImg.prev();}, go : function(ind){scrollImg.go_index(parseInt(ind)||0);} } } })(jQuery)
参考:http://www.cnblogs.com/huzhiming/p/3732688.html(修改了源代码的部分bug:循环参数loop和自动切换参数配置无效;新增滚动时长配置;只有一张图片时不允许切换。)
时间: 2024-10-20 20:12:03