H5实现滑动切换图片功能

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html jquery

页面代码

<!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;}*/
			
			div.imgbox {
				width: 100%;
				height: 100%;
				overflow: hidden;
				margin: 0 auto;
			}
			
			div.imgbox ul {
				clear: both;
				width: 32.5rem;
				display: inline-block;
			}
			
			div.imgbox ul li {
				float: left;
				width: 32.5rem;
				height: 100%;
				overflow: hidden;
				text-align: center;
			}
			
			div.imgbox ul li img {
				width: 32.5rem;
				height: 95%;
			}
			
			#page {
				color: red;
			}
			
			#active {
				width: 100%;
				text-align: center;
			}
			
			#active label {
				display: inline-block;
				width: 10px;
				height: 10px;
				border-radius: 5px;
				background: #bbb;
				border-color: #777;
			}
			
			#active label:hover {
				background: #ccc;
			}
			
		</style>
	</head>

	<body>
		<div class="imgbox">
			<ul>
				<li>
					<a href="#"><img src="img/111.jpg"></img>
					</a>
				</li>
				<li>
					<a href="#"><img src="img/222.jpg"></img>
					</a>
				</li>
				<li>
					<a href="#"><img src="img/333.jpg"></img>
					</a>
				</li>
				<li>
					<a href="#"><img src="img/444.jpg"></img>
					</a>
				</li>
			</ul>
		</div>
		<div id="active">
			<ul>
				<li>
					<label id="lable1"></label>
					<label id="lable2"></label>
					<label id="lable3"></label>
					<label id="lable4"></label>
				</li>
			</ul>
		</div>
		<div hidden="true">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-1.11.1.min.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: false, //循环切换
					auto: false, //自动切换
					auto_wait_time: 3000, //轮播时间
					scroll_time: 300, //滚动时长
					callback: function(ind) { //这里是传过来的索引值
						$('#page').text(ind + 1);
						if($('#page').text()== 1)
						{
							$('#lable1').css("background-color","#333");
							$('#lable2').css("background-color","#ccc");
							$('#lable3').css("background-color","#ccc");
							$('#lable4').css("background-color","#ccc");
						}
						if($('#page').text() == 2)
						{
							$('#lable1').css("background-color","#ccc");
							$('#lable2').css("background-color","#333");
							$('#lable3').css("background-color","#ccc");
							$('#lable4').css("background-color","#ccc");
						}
						if($('#page').text() == 3)
						{
							$('#lable1').css("background-color","#ccc");
							$('#lable2').css("background-color","#ccc");
							$('#lable3').css("background-color","#333");
							$('#lable4').css("background-color","#ccc");
						}
						if($('#page').text() == 4)
						{
							$('#lable1').css("background-color","#ccc");
							$('#lable2').css("background-color","#ccc");
							$('#lable3').css("background-color","#ccc");
							$('#lable4').css("background-color","#333");
						}
					}
				});
				
			})()
			
		</script>
	</body>

</html>

下面是js外部代码：

(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)

核心代码参考：https://www.cnblogs.com/yinluhui0229/p/4864645.html
但是离我想要的效果还差一点，就是在底部需要有几个小点来，标注当前在第几页，还剩几张图，所以对代码做了小部分改动，写的不好，大神轻拍

最终效果件附件图片