包含3个文件:html、slider-H5.js、jquery.js。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)
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持w3xue。