仿iphone日历插件(beta)

前言

小伙伴们好，很久不见了。最近工作进入正常期了，所以慢慢的悠闲的时间久没有了，所以不能每天水一篇了。

最近也在听师傅（http://home.cnblogs.com/u/aaronjs/）的教导开始阅读jquery源码了，怎么说呢，阅读的效果其实不是太好。

一来是时间断断续续的没有接上，今天读完明天又忘了，到第三天再读的话，就很多都忘记了；

二来是jquery其实还是有一定难度，加之篇幅也很长，所以读起来还是有一点吃力（我甚至有时候有种想睡的感觉），过了2星期才陆陆续续把core读完，结果很多都无法理解，再加油吧。

反正今年的目标就是把jquery读懂，时间多，不着急了。

时间比较紧未做兼容处理，请使用手机/或者使用chrome开启touch功能查看，后期补上兼容方案，以及修复BUG

关于工作

最近工作上需要在我们的网页上加入一些动画：

① 页面的切入切出的转场动画

② 模仿一个iphone的日历控件

转场动画做的时候其实碰到了很多坑，而且最后做出的效果也一般，因为既有的框架与dom结构已经出来了好久了，改不得，而且就算改了效果也不能保证好，所以暂时放下

这里说的仿iphone日历控件，不如说模仿一个单选框来的实在，而且我这里说是插件，完全就算标题党了，各位可以忽视，所以今日正题吧。

iphone的感觉

第一步我们要找到iphone的感觉，那么iphone是个什么感觉呢：

大概是这么个感觉，但是我做出来却变成了这种感觉，将就着看吧：

总体思路

PS：现在其实正在写功能代码，所以，现在我们是边写边做的，思路乱了各位请包涵

测试代码

这个代码很烂，各位就不要看了，我都不知道怎么写出来的，后面点整理吧，里面的CSS不想写就直接拿别人的用了

 

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

    <title></title>

    <style type="text/css">

/*reset*/

body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,code,form,fieldset,legend,input,textarea,p,blockquote,th,td,hr,button,article,aside,details,figcaption,figure,footer,header,hgroup,menu,nav,section{margin:0;padding:0}

body,button,input,select,textarea{font:normal 14px/1.5 Tahoma,"Lucida Grande",Verdana,"Microsoft YaHei",hei;}

article,aside,details,figcaption,figure,footer,header,hgroup,menu,nav,section,iframe{display:block;}

h1,h2,h3,h4,h5,h6{font-size:100%;font-weight:500;}

address,cite,dfn,em,var,i{font-style:normal;font-weight:normal;font-family:arial;}

ul,ol{list-style:none}

a{color:#000;text-decoration:none}

a:hover{text-decoration:underline;-webkit-transition:color .2s linear;-moz-transition:color .2s linear;-ms-transition:color .2s linear;-o-transition:color .2s linear;transition:color .2s linear;}

fieldset,img,button,input{border:0}

button,input,select,textarea{font-size:100%}

table{border-collapse:collapse;border-spacing:0}

input[type="button"],input[type="submit"]{-webkit-appearance:none;}

body{min-width:320px; background:#f5f5f5;overflow-x:hidden;-webkit-text-size-adjust:none;-webkit-tap-highlight-color:rgba(0,0,0,0);-webkit-font-smoothing:subpixel-antialiased;-moz-user-select:none;color:#000;}:focus{outline:none;}.clearfix:after{clear:both;content:'.';display:block;height:0;visibility:hidden;line-height:0;}.clearfix{*zoom:1;}.fl{float:left;}.fr{float:right;}.clear{clear:both;}.overflow{overflow:hidden;}.ellips{white-space:nowrap; overflow:hidden; text-overflow:ellipsis;}.ellips_line2,.ellips_line3{display: -webkit-box;-webkit-box-orient: vertical;overflow: hidden;}.ellips_line2{-webkit-line-clamp:2;}.ellips_line3{-webkit-line-clamp:3;}.pos_rel{position:relative;}

html,body,.h100{ height:100%; }

dfn{color:#ff9913; font-size:12px; font-weight:normal;}

/*-----------------------------------------common--------------------*/

.i,.i_bef:before,.i_aft:after,.carlist li:before,.ok_crt:after{background:url(../img/style1/v2_bgs.png) no-repeat; background-size:175px 125px;}

.i_bef:before,.i_aft:after,.carlist li:before{position: absolute;content: "";}

.abs_size{-moz-box-sizing:border-box; -webkit-box-sizing:border-box; box-sizing:border-box;}

.opacity{opacity:0.7; filter:alpha(opacity=70);}

/*active*/

.list_st_border li:active,.p_hinttxt:active,.search_cancel:active,.citylist dd:active{ background:#f8f8f8;}

.btn_yellow:active{background:#eb840f;}

/*layout*/

.wrap{margin-top:48px;}

.wrap_pb{margin-top:48px; padding-bottom:45px;}

.p10{padding:10px;}

.hm{text-align:center;}

.break_all{word-break:break-all;}

.fix_b{position:fixed; bottom:0; left:0;z-index:9999;}

/*font bg color size*/

h1{font:normal 1.286em/1.5 "";}/*18px*/

h2{font:normal 1.143em/1.5 "";}/*16px*/

h3{font:600 1em/1.5 "";}/*14px*/

.price{margin-left:5px;}

.price i{margin-left:2px; font-size:1.286em;}

.greyfont{color:#686868;}

.greyfont1{color:#909090;}

.bggrey{height:100%; background:#f5f5f5;}

/*header*/

header{position:fixed; top:0; left:0; z-index:9999; width:100%; height:48px;background-color:#1491c5;}

.returnico{position:absolute; left:0; top:0;  width:68px; height:48px; background-color:#15a4d5;}

.returnico:before{left:25px;top:16px;width:12px;height:20px; background-position:0 0;}

.icon_phone,.icon_home{width:42px;height:100%;top:0;position:relative;float:right;}

.icon_phone:before{width:11px;height:20px;top:16px;right:12px;background-position:-115px -65px;}

.icon_home:before{width:20px;height:19px;top:16px;right:10px;background-position:-83px -66px;}

header i:active{opacity:0.7; filter:alpha(opacity=70);}

header h1{position:absolute; width:100%;line-height:48px; text-align:center; letter-spacing:2px; color: #fff;}

.header_r,.header_rs{position:absolute;z-index:9; top:0; right:0; line-height:48px; padding:0 15px; font-size:18px; background:#15a4d5; color:#fff;}

.header_rs{padding:0 5px; font-size:12px; }

/*background-position*/

.select_n:before{width:20px;height:20px;background-position:-18px 0;}

.select_n.current:before{background-position:-44px 0;}

/*searchbox*/

.search_wrap{overflow:hidden; padding:10px; background:#dfeaf1;}

.search_box{position:relative; float:left; width:100%;}

.search_input{width:100%; padding:0 10px 0 28px; line-height:30px; background-color:#fff; border-radius:4px; color:#ccc;}

.fdj:before,.fdj:after,.search_box:before,.search_box:after{position:absolute; content:""; z-index:9;}

.fdj:before,.search_box:before{left:5px; top:7px; width:12px; height:12px; border:1px solid #bcbcbc; border-radius:12px;}

.fdj:after,.search_box:after{left:19px; top:17px; width:1px; height:8px; background:#bcbcbc;}

.search_cancel{ display:none;float:left; width:20%; line-height:30px; text-align:center; font-size:16px;color:#1491c5; background:none; border:none;}

.close_icon{display:none; position:absolute; z-index:10; top:8px; right:4px; width:16px; height:16px; border-radius:30px; background:#b1b1b1;}

.close_icon:before,.close_icon:after{position:absolute; content:""; top:4px; left:7px; width:2px; height:8px; background:#fff; }

.close_icon:before{-webkit-transform:rotate(45deg);-moz-transform:rotate(45deg);-ms-transform:rotate(45deg);-o-transform:rotate(45deg);transform:rotate(45deg);}

.fdj:after,.search_box:after,.close_icon:after{-webkit-transform:rotate(-45deg);-moz-transform:rotate(-45deg);-ms-transform:rotate(-45deg);-o-transform:rotate(-45deg);transform:rotate(-45deg);}

.search_focus .search_box{width:80%;}

.search_focus .close_icon, .search_focus .search_cancel{display:block;}

.search_input:focus{color:#000;}

/*tab*/

.tab{ background-color:#f8f8f8; border-bottom:1px solid #dfdfdf;}

.tab li{float:left; width:50%; height:39px; line-height:39px; text-align:center; border-right:1px solid #dfdfdf;}

.tab li:last-child{border-right:none;}

.tab li.tabcrt{ background-color:#dfdfdf;}

.tab_b{ background-color:#f5f5f5; border-bottom:1px solid #c1c1c1;}

.tab_b li{float:left; width:50%; height:39px; line-height:39px; text-align:center;}

.tab_b li:last-child{border-right:none;}

.tab_b li.tabcrt{color:#1491c5; border-bottom:4px solid #1491c5;}

/*list*/

.list_st_border{ background:#fff; border-bottom:none; border:1px solid #cfcfcf; }

.list_st_border li{position:relative;padding:0 10px; line-height:42px; border-bottom:1px solid #cfcfcf;}

.list_st_border li:last-child{border-bottom:none;}

.list_sli{padding:10px; overflow:hidden; border-bottom:1px solid #cfcfcf; background:#fff;}

.list_sli .list_sunit{float:left;}

.citylist{color:#000;}

.citylist dt,.citylist dd{padding-left:10px;border-bottom:1px solid #e2e2e2;}

.citylist dt{line-height:25px; background-color:#eaeaea;}

.citylist dd{position:relative; font-size:16px; line-height:43px; background-color:#fff;}

.citylist .ok_crt{color:#1491c5;}

.citylist .ok_crt:after{position:absolute;content:""; right:10px; top:50%; margin-top:-6px; width:12px; height:13px; background-position:-110px 0;}

/*arr*/

.li_arr_r{position:relative;}

.arr_r{position:absolute;right:0px; top:50%; width:30px; height:30px; margin-top:-15px; }

.arr_r:before,.arr_r:after,.li_arr_r:before,.li_arr_r:after{position: absolute; left:15px; content: "";width:2px; height:7px;  background-color:#909090;}

.arr_r:before,.li_arr_r:before{top:10px;-webkit-transform:rotate(-45deg); -moz-transform:rotate(-45deg);-ms-transform:rotate(-45deg);-o-transform:rotate(-45deg);transform:rotate(-45deg);}

.arr_r:after,.li_arr_r:after{top:15px;-webkit-transform:rotate(45deg); -moz-transform:rotate(45deg);-ms-transform:rotate(45deg);-o-transform:rotate(45deg);transform:rotate(45deg);}

.li_arr_r:before,.li_arr_r:after{left:auto; right:10px; top:50%; margin-top:-5px;}

.li_arr_r:after{margin-top:0;}

/*p*/

.p_grey{margin:10px 5px; font-size:13px; color:#989898;}

.p_grey_center{ text-align:center; margin:20px 5px; font-size:13px; color:#989898;}

.p_hinttxt{padding:20px 10px; text-align:center; font-size:16px;  color:#1491c5;}

/*btn*/

.btn_yellow,.btn_del{width:100%; height:44px; line-height:42px; padding:0 10px;  color:#fff;}

.btn_yellow{background:#ff9913;}

.btn_del{background:#ca4345;text-align:center;font-size:1.2em;}

.btn_pay{padding:0 20px;height:44px;float:right;background:#ff7d13;color:#fff;}

.btn_pay:active{background:#ff7300;}

.room_num {position:absolute; right:10px; width:100px; height:30px; line-height:30px;color:#000;background-color: #fff; text-align:center;border:#bfbfbf 1px solid;}

.room_num i{position:absolute; width:30px; height:30px; text-align:center; font:normal 2em/28px "Arial";}

.room_num i:first-child{left:0;background:#f4f4f4;color:#d9d9d9;font:normal 2.8em/25px "Arial";}

.room_num i:last-child{right:0;background:#06a2d0;color:#fff;}

    /*日历*/

.cui_cldwrap{color:#000;}

.cui_cldweek{height:25px; overflow:hidden;font:normal 12px/24px "verdana";border-bottom:1px solid #c8c8c8;}

.cui_cldweek li{float:left; width:14%; text-align:center; }

.cui_cldweek li:first-child,.cui_cldweek li:last-child{width:15%; color:#acacac;}

.cui_cldmonth{height:35px;text-align:center;font:normal 16px/35px "verdana"; background:#fff;}

.cui_cldunit{margin-bottom:20px;}

.cui_cld_daybox{overflow:hidden; background:#fff;}

.cui_cld_daybox li{float:left; width:14%; height:45px; padding:4px 0; font:normal 12px/45px "verdana"; overflow:hidden; text-align:center;}

.cui_cld_daybox li:nth-child(7n),.cui_cld_daybox li:nth-child(7n+1){width:15%;}

.cui_cld_daypass{ background:#f7f7f7;}

.cui_cld_daycrt{background:#06a2d0; color:#fff;}

.cui_cld_dayfuture{background:#fff;}

.cui_cld_day_nocrtmonth{ visibility:hidden;}

.cui_cld_day_havetxt em{display:block; line-height:25px;}

.cui_cld_day_havetxt i{display:block;line-height:15px;}

.cui_cld_day_hint{color:#06a2d0;}

/*全局XXXX*/

/*弹出蓝色框*/

.cui-pop-box{background:#fff;}

.cui-text-center{text-align:center;}

.cui-pop-box .cui-hd{height:40px;line-height:40px;font-size:1.2em;color:#fff;background:#1491c5;padding:0 10px;position:relative;}

.cui-pop-box .cui-hd .cui-close{position:absolute;top:10px; right:10px; width:18px; height:18px;line-height:18px;border-radius:50%; background:#fff;color:#1491c5;text-align:center;font-weight:bold;}

.cui-error{width:150px;margin:auto;border-radius:5px;background:rgba(73,73,73,1);padding:10px;color:#fff;font-weight:700;text-align:center;word-break:break-all;}

.cui-select-view li{border-bottom:#dfdfdf 1px solid;padding:.8em 2em .8em .8em;white-space:nowrap; overflow:hidden; text-overflow:ellipsis;position:relative;}

.cui-select-view li.current{color:#1084bc;}

.cui-select-view li:active{background:rgba(0,0,0,.05);}

.cui-select-view li.current:before,.cui-select-view li.current:after{position:absolute;content:"";background:#1084bc;height:3px;top:50%;border-radius:3px;}

.cui-select-view li.current:before{width:18px;right:10px;margin-top:-2px;-webkit-transform:rotate(-50deg);-moz-transform:rotate(-50deg);-ms-transform:rotate(-50deg);transform:rotate(-50deg);}

.cui-select-view li.current:after{width:9px;right:22px;margin-top:2px;-webkit-transform:rotate(45deg);-moz-transform:rotate(45deg);-ms-transform:rotate(45deg);transform:rotate(45deg);}

.cui-roller{width:100%;height:90px;overflow:hidden;position:relative;display: -webkit-box;display: -moz-box;display: -ms-flexbox;display: -webkit-flex;display: flex;}

.cui-roller .ul-list{height:100%;text-align:center;font-size:1.1em;line-height:30px;-webkit-box-flex: 1;-moz-box-flex: 1;-webkit-flex: 1;-ms-flex: 1;flex: 1;}

.cui-mask{position:absolute;z-index:3;top: 0;left: 0;width: 100%;height: 100%;pointer-events: none;

    background: linear-gradient(#fff 0,rgba(245,245,245,0) 52%,rgba(245,245,245,0) 48%,#fff 100%);

    background: -webkit-gradient(linear,left bottom,left top,from(#fff),color-stop(0.52,rgba(245,245,245,0)),color-stop(0.48,rgba(245,245,245,0)),to(#fff));

    background: -webkit-linear-gradient(#fff 0,rgba(245,245,245,0) 52%,rgba(245,245,245,0) 48%,#fff 100%);

    background: -moz-linear-gradient(#fff 0,rgba(245,245,245,0) 52%,rgba(245,245,245,0) 48%,#fff 100%);

}

.cui-lines{width:100%;height:34px;position:absolute;top:50%;margin-top:-17px;border-top:#dfdfdf 1px solid;border-bottom:#dfdfdf 1px solid;}

.cui-roller-tips{color:#8d8d8d;padding:5px;text-align:center;}

.cui-roller-btns{background:#f6f5f5;padding:10px;text-align:center;}

.cui-roller-btns span{width:45%;display:inline-block;padding:10px 0;color:#fff;}

.cui-roller-btns span:active{opacity:.75;}

.cui-roller-btns .cui-btns-cancel{background:#a9a9a9;margin-right:5%;}

.cui-roller-btns .cui-btns-sure{background:#ff9913;}

    </style>

    <script src="../zepto.js" type="text/javascript"></script>

</head>

<body id="ctripPage" onselectstart="return false">

<!--滚轮-->

<div class="cui-pop-box">

     <div class="cui-hd"><div class="cui-text-center">滚轮滚轮滚轮</div></div>

     <div class="cui-bd">

              <div class="cui-roller">

                  <ul class="ul-list" style=" position: absolute; width: 100%; z-index: 2;  " >

                      <li>选项1</li>

                      <li>选项2</li>

                      <li>选项3</li>

                      <li>选项4</li>

                      <li>选项5</li>

                      <li>选项6</li>

                      <li>选项7</li>

                      <li>选项8</li>

                      <li>选项9</li>

                      <li>选项10</li>

                      <li>选项11</li>

                      <li>选项12</li>

                      <li>选项13</li>

                      <li>选项14</li>

                      <li>选项15</li>

                      <li>选项16</li>

                      <li>选项17</li>

                      <li>选项18</li>

                      <li>选项19</li>

                      <li>选项20</li> <li>选项1</li>

                      <li>选项2</li>

                      <li>选项3</li>

                      <li>选项4</li>

                      <li>选项5</li>

                      <li>选项6</li>

                      <li>选项7</li>

                      <li>选项8</li>

                      <li>选项9</li>

                      <li>选项10</li>

                      <li>选项11</li>

                      <li>选项12</li>

                      <li>选项13</li>

                      <li>选项14</li>

                      <li>选项15</li>

                      <li>选项16</li>

                      <li>选项17</li>

                      <li>选项18</li>

                      <li>选项19</li>

                      <li>选项20</li>

                  </ul>

                  <div class="cui-mask" style=""></div>

                  <div class="cui-lines">&nbsp;</div>

              </div>

              <p class="cui-roller-tips">提示信息</p>

              <div class="cui-roller-btns">

                   <span class="cui-btns-cancel">取消</span><span class="cui-btns-sure">确定</span>

              </div>

     </div>

</div>

<script type="text/javascript">

    //    var myScroll = new iScroll('wl1');

 

    var y1 = 0, y2 = 0;

    var moveAble = false;

    var dragEl = null;

    var parent = $('.cui-roller');

    var offset;

    var el_top = 0;

    var o_top = 0;

    var t1 = 0, t2 = 0;

    var timer = null;

    document.addEventListener("touchstart", touchStart, false);

    document.addEventListener("touchend", touchEnd, false);

    document.addEventListener("touchmove", touchMove, false);

    function touchStart(e) {

        t1 = e.timeStamp;

        var srcElement = $(e.srcElement), pos;

        dragEl = $(e.srcElement).parent();

        if (dragEl.hasClass('ul-list')) {

            var pos = getMousePos(e.changedTouches[0]);

            offset = dragEl.offset();

            y1 = pos.top - offset.top;

            var top = parseFloat(dragEl.css('top')) || 0;

            o_top = top;

            y1 = y1 - parseFloat(top);

            moveAble = true;

        }

    }

    function touchMove(e) {

        if (!dragEl || !moveAble) return false;

        var pos = getMousePos(e.changedTouches[0]);

        y2 = pos.top - y1 - offset.top;

        if (timer) clearTimeout(timer);

        el_top = y2;

        dragEl.css('top', y2 + 'px');

        e.preventDefault();

    }

    function touchEnd(e) {

        t2 = e.timeStamp - t1;

        var flag = o_top <= el_top ? 1 : -1;

        var flag2 = el_top > 0 ? 1 : -1;

        el_top = Math.abs(el_top);

        var mod = el_top % 30;

        el_top = (parseInt(el_top / 30) * 30 + (mod > 15 ? 30 : 0)) * flag2;

        if (t2 >= 200) {

            dragEl.animate({

                top: el_top + 'px'

            }, 100, 'ease-in-out', function () {

                if (el_top > 30) {

                    dragEl.animate({

                        top: '30px'

                    }, 10, 'ease-in-out');

                }

                if (el_top < 0 && (el_top + dragEl[0].scrollHeight < 60)) {

                    dragEl.animate({

                        top: '-' + (dragEl[0].scrollHeight - 60) + 'px'

                    }, 10, 'ease-in-out');

                }

            });

        } else {

            var step = parseInt(t2 / 50);

            console.log(t2, step);

            var param = [10, 6, 4, 2];

            var _tmp = param[step] * 30 * flag;

            _tmp = el_top + _tmp;

            dragEl.animate({

                top: (_tmp) + 'px'

            }, 100 + (param[step] * 50), 'ease-in-out', function () {

                if (_tmp > 30) {

                    dragEl.animate({

                        top: '30px'

                    }, 10, 'ease-in-out');

                }

                if (_tmp < 0 && (_tmp + dragEl[0].scrollHeight < 60)) {

                    dragEl.animate({

                        top: '-' + (dragEl[0].scrollHeight - 60) + 'px'

                    }, 10, 'ease-in-out');

                }

            });

        }

        moveAble = false;

    }

    function getMousePos(event) {

        var top, left;

        top = Math.max(document.body.scrollTop, document.documentElement.scrollTop);

        left = Math.max(document.body.scrollLeft, document.documentElement.scrollLeft);

        return {

            top: top + event.clientY,

            left: left + event.clientX

        };

    };

    var s = '';

</script>

</body>

</html>

demo请按照图示观看

http://sandbox.runjs.cn/show/dkf9dkwq

关于iscroll

最开始我们总是喜欢找一些已经存在了的解决方案来试试，这样就比较简单了，但是iscroll有一定问题就是他太大了。

最简单的压缩了都快10k了，所以直接给毙了，这里暂时就用不到他了。

zepto的touch事件

我是一个喜欢偷懒的人，我看着zepto有touch事件，本来想拿来直接用用谁知道。。。

 

// Zepto.js

//     (c) 2010-2012 Thomas Fuchs

//     Zepto.js may be freely distributed under the MIT license.

;(function($){

  var touch = {},

    touchTimeout, tapTimeout, swipeTimeout,

    longTapDelay = 750, longTapTimeout

  function parentIfText(node) {

    return 'tagName' in node ? node : node.parentNode

  }

  function swipeDirection(x1, x2, y1, y2) {

    var xDelta = Math.abs(x1 - x2), yDelta = Math.abs(y1 - y2)

    return xDelta >= yDelta ? (x1 - x2 > 0 ? 'Left' : 'Right') : (y1 - y2 > 0 ? 'Up' : 'Down')

  }

  function longTap() {

    longTapTimeout = null

    if (touch.last) {

      touch.el.trigger('longTap')

      touch = {}

    }

  }

  function cancelLongTap() {

    if (longTapTimeout) clearTimeout(longTapTimeout)

    longTapTimeout = null

  }

  function cancelAll() {

    if (touchTimeout) clearTimeout(touchTimeout)

    if (tapTimeout) clearTimeout(tapTimeout)

    if (swipeTimeout) clearTimeout(swipeTimeout)

    if (longTapTimeout) clearTimeout(longTapTimeout)

    touchTimeout = tapTimeout = swipeTimeout = longTapTimeout = null

    touch = {}

  }

  $(document).ready(function(){

    var now, delta

    $(document.body)

      .bind('touchstart', function(e){

        now = Date.now()

        delta = now - (touch.last || now)

        touch.el = $(parentIfText(e.touches[0].target))

        touchTimeout && clearTimeout(touchTimeout)

        touch.x1 = e.touches[0].pageX

        touch.y1 = e.touches[0].pageY

        if (delta > 0 && delta <= 250) touch.isDoubleTap = true

        touch.last = now

        longTapTimeout = setTimeout(longTap, longTapDelay)

      })

      .bind('touchmove', function(e){

        cancelLongTap()

        touch.x2 = e.touches[0].pageX

        touch.y2 = e.touches[0].pageY

        if (Math.abs(touch.x1 - touch.x2) > 10)

          e.preventDefault()

      })

      .bind('touchend', function(e){

         cancelLongTap()

        // swipe

        if ((touch.x2 && Math.abs(touch.x1 - touch.x2) > 30) ||

            (touch.y2 && Math.abs(touch.y1 - touch.y2) > 30))

          swipeTimeout = setTimeout(function() {

            touch.el.trigger('swipe')

            touch.el.trigger('swipe' + (swipeDirection(touch.x1, touch.x2, touch.y1, touch.y2)))

            touch = {}

          }, 0)

        // normal tap

        else if ('last' in touch)

          // delay by one tick so we can cancel the 'tap' event if 'scroll' fires

          // ('tap' fires before 'scroll')

          tapTimeout = setTimeout(function() {

            // trigger universal 'tap' with the option to cancelTouch()

            // (cancelTouch cancels processing of single vs double taps for faster 'tap' response)

            var event = $.Event('tap')

            event.cancelTouch = cancelAll

            touch.el.trigger(event)

            // trigger double tap immediately

            if (touch.isDoubleTap) {

              touch.el.trigger('doubleTap')

              touch = {}

            }

            // trigger single tap after 250ms of inactivity

            else {

              touchTimeout = setTimeout(function(){

                touchTimeout = null

                touch.el.trigger('singleTap')

                touch = {}

              }, 250)

            }

          }, 0)

      })

      .bind('touchcancel', cancelAll)

    $(window).bind('scroll', cancelAll)

  })

  ;['swipe', 'swipeLeft', 'swipeRight', 'swipeUp', 'swipeDown', 'doubleTap', 'tap', 'singleTap', 'longTap'].forEach(function(m){

    $.fn[m] = function(callback){ return this.bind(m, callback) }

  })

})(Zepto)

这个就是zepto的touch事件，可以看到他只是对touchend有所监控，会触发一点点事件，所以和我们没有一毛钱关系

在此我便认命的自己敲下了以下代码：

1 document.addEventListener("touchstart", touchStart, false);

2 document.addEventListener("touchend", touchEnd, false);

3 document.addEventListener("touchmove", touchMove, false);

鼠标拖动

该功能的第一个技术点，便是元素跟着鼠标移动，拖到哪里就是哪里，这个大家都比较熟悉了，就不多说

touchend

当拖动结束时，我们要做很多后续的工作：

① 让选项进入既定的轨道

② 是否具有动画效果

③ 动画效果的步长等

PS：开始觉得有几个点可以说说，结果真的写出来却无话可说了，哎。。。。。。

经过以上版本，我们的粗制滥造版便出现了，就是以上的代码。

封装

于是我们就可以在这个基础上整理代码，封装起来了，请看下一步。

整理封装

首先，我们虽然写的不是插件，但是还是应该让他有插件的样子，来点简单的修饰吧。

经过一阶段的休整，我们的代码成了这个样子了：

(function () {
var ScrollRadio = function (opts) {
opts = opts || {};
//容器元素
this.wrapper = opts.wrapper || $(document);
this.body = [
'<div class="cui-roller">',
'<ul class="ul-list" style=" position: absolute; width: 100%; z-index: 2; " >',
'</ul>',
'<div class="cui-mask"></div>',
'<div class="cui-lines"> </div>',
'</div>'
].join('');
this.body = $(this.body);

//真正拖动的元素（现在是ul）
this.dragEl = this.body.find('.ul-list');
//数据源
this.data = opts.data || [];
this._changed = opts.changed || null;
//当前选项索引
this.selectedIndex = 0;
//当前选项值
this.key = '';
//当前选项显示的值
this.value = '';

/*
定位实际需要用到的信息
暂时不考虑水平移动吧
*/
this.itemHeight = 0; //单个item高度
this.dragHeight = 0; //拖动元素高度
this.dragTop = 0; //拖动元素top
this.animateParam = [10, 8, 7, 6, 6, 6, 5, 5, 4, 2, 0]; //动画参数
this.timeGap = 0; //时间间隔
this.touchTime = 0; //开始时间
this.moveAble = false; //是否正在移动
this.moveState = 'up'; //移动状态，up right down left
this.oTop = 0; //拖动前的top值
this.curTop = 0; //当前容器top
this.mouseY = 0; //鼠标第一次点下时相对父容器的位置

this.init();
};
ScrollRadio.prototype = {
constructor: ScrollRadio,
init: function () {
this.initItem();
this.wrapper.append(this.body);
this.initEventParam();
this.bindEvent();

return this;
},
//增加数据
initItem: function () {
var _tmp, _data, i, k;
for (var i in this.data) {
_data = this.data[i]
_tmp = $('<li>' + (_data.val == undefined ? i : _data.val) + '</li>');
_tmp.attr('data-index', i);
for (k in _data) {
_tmp.attr('data-' + k, _data[k]);
}
this.dragEl.append(_tmp);
}
},
//初始化事件需要用到的参数信息
initEventParam: function () {
var offset = this.dragEl.offset();
var itemOffset = this.dragEl.find('li').eq(0).offset();
this.itemHeight = itemOffset.height
this.dragTop = offset.top;
this.dragHeight = this.dragEl[0].scrollHeight;
var s = '';
},
bindEvent: function () {
var scope = this;
document.addEventListener("touchstart", function (e) {
scope.touchStart.call(scope, e);
}, false);
document.addEventListener("touchend", function (e) {
scope.touchEnd.call(scope, e);
}, false);
document.addEventListener("touchmove", function (e) {
scope.touchMove.call(scope, e);
}, false);
},
touchStart: function (e) {
//需要判断是否是拉取元素，此处需要递归验证，这里暂时不管
//！！！！！！！！此处不严谨
var el = $(e.srcElement).parent(), pos;
if (el.hasClass('ul-list')) {
this.touchTime = e.timeStamp;
//获取鼠标信息
pos = this.getMousePos(e.changedTouches[0]);
//注意，此处是相对位置
this.mouseY = pos.top - this.curTop;
this.moveAble = true;
}
},
touchMove: function (e) {
if (!this.moveAble) return false;
var pos = this.getMousePos(e.changedTouches[0]);
//先获取相对容器的位置，在将两个鼠标位置相减
this.curTop = pos.top - this.mouseY;

this.dragEl.css('top', this.curTop + 'px');

e.preventDefault();
},
touchEnd: function (e) {
//时间间隔
var scope = this;
this.timeGap = e.timeStamp - this.touchTime;
var flag = this.oTop <= this.curTop ? 1 : -1; //判断是向上还是向下滚动
var flag2 = this.curTop > 0 ? 1 : -1; //这个会影响后面的计算结果
this.moveState = flag > 0 ? 'up' : 'down';
var ih = parseFloat(this.itemHeight);
var ih1 = ih / 2;

var top = Math.abs(this.curTop);
var mod = top % ih;
top = (parseInt(top / ih) * ih + (mod > ih1 ? ih : 0)) * flag2;

console.log(this.timeGap, top, increment);

this.oTop = top;
this.curTop = top;
this.moveAble = false;

},
setKey: function (k) {

},
setVal: function (v) { },
setIndex: function (i) {

},
getSelected: function () {

},
getByKey: function (k) { },
getByVal: function (v) { },
getByIndex: function (i) { },

//选项改变时候触发
changed: function () {

},
//获取鼠标信息
getMousePos: function (event) {
var top, left;
top = Math.max(document.body.scrollTop, document.documentElement.scrollTop);
left = Math.max(document.body.scrollLeft, document.documentElement.scrollLeft);
return {
top: top + event.clientY,
left: left + event.clientX
};
}

};

window.ScrollRadio = ScrollRadio;

})();

var data = [];
for (var i = 0; i < 100; i++) {
var temp = { val: '选项-' + i };
data.push(temp);
}

var myScroll = new ScrollRadio({
wrapper: $('#ctripPage'),
data: data
});

var s = '';

http://sandbox.runjs.cn/show/biousc1u

其中动画步长可以自己调节，选一个自己认为合适的，下面接着更新。

设置/获取

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<style type="text/css">

/*reset*/
body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,code,form,fieldset,legend,input,textarea,p,blockquote,th,td,hr,button,article,aside,details,figcaption,figure,footer,header,hgroup,menu,nav,section{margin:0;padding:0}
body,button,input,select,textarea{font:normal 14px/1.5 Tahoma,"Lucida Grande",Verdana,"Microsoft YaHei",hei;}
article,aside,details,figcaption,figure,footer,header,hgroup,menu,nav,section,iframe{display:block;}
h1,h2,h3,h4,h5,h6{font-size:100%;font-weight:500;}
address,cite,dfn,em,var,i{font-style:normal;font-weight:normal;font-family:arial;}
ul,ol{list-style:none}
a{color:#000;text-decoration:none}
a:hover{text-decoration:underline;-webkit-transition:color .2s linear;-moz-transition:color .2s linear;-ms-transition:color .2s linear;-o-transition:color .2s linear;transition:color .2s linear;}
fieldset,img,button,input{border:0}
button,input,select,textarea{font-size:100%}
table{border-collapse:collapse;border-spacing:0}
input[type="button"],input[type="submit"]{-webkit-appearance:none;}
body{min-width:320px; background:#f5f5f5;overflow-x:hidden;-webkit-text-size-adjust:none;-webkit-tap-highlight-color:rgba(0,0,0,0);-webkit-font-smoothing:subpixel-antialiased;-moz-user-select:none;color:#000;}:focus{outline:none;}.clearfix:after{clear:both;content:'.';display:block;height:0;visibility:hidden;line-height:0;}.clearfix{*zoom:1;}.fl{float:left;}.fr{float:right;}.clear{clear:both;}.overflow{overflow:hidden;}.ellips{white-space:nowrap; overflow:hidden; text-overflow:ellipsis;}.ellips_line2,.ellips_line3{display: -webkit-box;-webkit-box-orient: vertical;overflow: hidden;}.ellips_line2{-webkit-line-clamp:2;}.ellips_line3{-webkit-line-clamp:3;}.pos_rel{position:relative;}
html,body,.h100{ height:100%; }
dfn{color:#ff9913; font-size:12px; font-weight:normal;}
/*-----------------------------------------common--------------------*/
.i,.i_bef:before,.i_aft:after,.carlist li:before,.ok_crt:after{background:url(../img/style1/v2_bgs.png) no-repeat; background-size:175px 125px;}
.i_bef:before,.i_aft:after,.carlist li:before{position: absolute;content: "";}
.abs_size{-moz-box-sizing:border-box; -webkit-box-sizing:border-box; box-sizing:border-box;}
.opacity{opacity:0.7; filter:alpha(opacity=70);}

/*active*/
.list_st_border li:active,.p_hinttxt:active,.search_cancel:active,.citylist dd:active{ background:#f8f8f8;}
.btn_yellow:active{background:#eb840f;}

/*layout*/
.wrap{margin-top:48px;}
.wrap_pb{margin-top:48px; padding-bottom:45px;}
.p10{padding:10px;}
.hm{text-align:center;}
.break_all{word-break:break-all;}
.fix_b{position:fixed; bottom:0; left:0;z-index:9999;}

/*font bg color size*/
h1{font:normal 1.286em/1.5 "";}/*18px*/
h2{font:normal 1.143em/1.5 "";}/*16px*/
h3{font:600 1em/1.5 "";}/*14px*/
.price{margin-left:5px;}
.price i{margin-left:2px; font-size:1.286em;}
.greyfont{color:#686868;}
.greyfont1{color:#909090;}
.bggrey{height:100%; background:#f5f5f5;}

/*header*/
header{position:fixed; top:0; left:0; z-index:9999; width:100%; height:48px;background-color:#1491c5;}
.returnico{position:absolute; left:0; top:0; width:68px; height:48px; background-color:#15a4d5;}
.returnico:before{left:25px;top:16px;width:12px;height:20px; background-position:0 0;}
.icon_phone,.icon_home{width:42px;height:100%;top:0;position:relative;float:right;}
.icon_phone:before{width:11px;height:20px;top:16px;right:12px;background-position:-115px -65px;}
.icon_home:before{width:20px;height:19px;top:16px;right:10px;background-position:-83px -66px;}
header i:active{opacity:0.7; filter:alpha(opacity=70);}
header h1{position:absolute; width:100%;line-height:48px; text-align:center; letter-spacing:2px; color: #fff;}
.header_r,.header_rs{position:absolute;z-index:9; top:0; right:0; line-height:48px; padding:0 15px; font-size:18px; background:#15a4d5; color:#fff;}
.header_rs{padding:0 5px; font-size:12px; }

/*background-position*/
.select_n:before{width:20px;height:20px;background-position:-18px 0;}
.select_n.current:before{background-position:-44px 0;}

/*searchbox*/
.search_wrap{overflow:hidden; padding:10px; background:#dfeaf1;}
.search_box{position:relative; float:left; width:100%;}
.search_input{width:100%; padding:0 10px 0 28px; line-height:30px; background-color:#fff; border-radius:4px; color:#ccc;}
.fdj:before,.fdj:after,.search_box:before,.search_box:after{position:absolute; content:""; z-index:9;}
.fdj:before,.search_box:before{left:5px; top:7px; width:12px; height:12px; border:1px solid #bcbcbc; border-radius:12px;}
.fdj:after,.search_box:after{left:19px; top:17px; width:1px; height:8px; background:#bcbcbc;}
.search_cancel{ display:none;float:left; width:20%; line-height:30px; text-align:center; font-size:16px;color:#1491c5; background:none; border:none;}
.close_icon{display:none; position:absolute; z-index:10; top:8px; right:4px; width:16px; height:16px; border-radius:30px; background:#b1b1b1;}
.close_icon:before,.close_icon:after{position:absolute; content:""; top:4px; left:7px; width:2px; height:8px; background:#fff; }
.close_icon:before{-webkit-transform:rotate(45deg);-moz-transform:rotate(45deg);-ms-transform:rotate(45deg);-o-transform:rotate(45deg);transform:rotate(45deg);}
.fdj:after,.search_box:after,.close_icon:after{-webkit-transform:rotate(-45deg);-moz-transform:rotate(-45deg);-ms-transform:rotate(-45deg);-o-transform:rotate(-45deg);transform:rotate(-45deg);}
.search_focus .search_box{width:80%;}
.search_focus .close_icon, .search_focus .search_cancel{display:block;}
.search_input:focus{color:#000;}

/*tab*/
.tab{ background-color:#f8f8f8; border-bottom:1px solid #dfdfdf;}
.tab li{float:left; width:50%; height:39px; line-height:39px; text-align:center; border-right:1px solid #dfdfdf;}
.tab li:last-child{border-right:none;}
.tab li.tabcrt{ background-color:#dfdfdf;}

.tab_b{ background-color:#f5f5f5; border-bottom:1px solid #c1c1c1;}
.tab_b li{float:left; width:50%; height:39px; line-height:39px; text-align:center;}
.tab_b li:last-child{border-right:none;}
.tab_b li.tabcrt{color:#1491c5; border-bottom:4px solid #1491c5;}

/*list*/
.list_st_border{ background:#fff; border-bottom:none; border:1px solid #cfcfcf; }
.list_st_border li{position:relative;padding:0 10px; line-height:42px; border-bottom:1px solid #cfcfcf;}
.list_st_border li:last-child{border-bottom:none;}

.list_sli{padding:10px; overflow:hidden; border-bottom:1px solid #cfcfcf; background:#fff;}
.list_sli .list_sunit{float:left;}

.citylist{color:#000;}
.citylist dt,.citylist dd{padding-left:10px;border-bottom:1px solid #e2e2e2;}
.citylist dt{line-height:25px; background-color:#eaeaea;}
.citylist dd{position:relative; font-size:16px; line-height:43px; background-color:#fff;}
.citylist .ok_crt{color:#1491c5;}
.citylist .ok_crt:after{position:absolute;content:""; right:10px; top:50%; margin-top:-6px; width:12px; height:13px; background-position:-110px 0;}

/*arr*/
.li_arr_r{position:relative;}
.arr_r{position:absolute;right:0px; top:50%; width:30px; height:30px; margin-top:-15px; }
.arr_r:before,.arr_r:after,.li_arr_r:before,.li_arr_r:after{position: absolute; left:15px; content: "";width:2px; height:7px; background-color:#909090;}
.arr_r:before,.li_arr_r:before{top:10px;-webkit-transform:rotate(-45deg); -moz-transform:rotate(-45deg);-ms-transform:rotate(-45deg);-o-transform:rotate(-45deg);transform:rotate(-45deg);}
.arr_r:after,.li_arr_r:after{top:15px;-webkit-transform:rotate(45deg); -moz-transform:rotate(45deg);-ms-transform:rotate(45deg);-o-transform:rotate(45deg);transform:rotate(45deg);}
.li_arr_r:before,.li_arr_r:after{left:auto; right:10px; top:50%; margin-top:-5px;}
.li_arr_r:after{margin-top:0;}

/*p*/
.p_grey{margin:10px 5px; font-size:13px; color:#989898;}
.p_grey_center{ text-align:center; margin:20px 5px; font-size:13px; color:#989898;}
.p_hinttxt{padding:20px 10px; text-align:center; font-size:16px; color:#1491c5;}

/*btn*/
.btn_yellow,.btn_del{width:100%; height:44px; line-height:42px; padding:0 10px; color:#fff;}
.btn_yellow{background:#ff9913;}
.btn_del{background:#ca4345;text-align:center;font-size:1.2em;}

.btn_pay{padding:0 20px;height:44px;float:right;background:#ff7d13;color:#fff;}
.btn_pay:active{background:#ff7300;}
.room_num {position:absolute; right:10px; width:100px; height:30px; line-height:30px;color:#000;background-color: #fff; text-align:center;border:#bfbfbf 1px solid;}
.room_num i{position:absolute; width:30px; height:30px; text-align:center; font:normal 2em/28px "Arial";}
.room_num i:first-child{left:0;background:#f4f4f4;color:#d9d9d9;font:normal 2.8em/25px "Arial";}
.room_num i:last-child{right:0;background:#06a2d0;color:#fff;}

/*日历*/
.cui_cldwrap{color:#000;}
.cui_cldweek{height:25px; overflow:hidden;font:normal 12px/24px "verdana";border-bottom:1px solid #c8c8c8;}
.cui_cldweek li{float:left; width:14%; text-align:center; }
.cui_cldweek li:first-child,.cui_cldweek li:last-child{width:15%; color:#acacac;}
.cui_cldmonth{height:35px;text-align:center;font:normal 16px/35px "verdana"; background:#fff;}
.cui_cldunit{margin-bottom:20px;}
.cui_cld_daybox{overflow:hidden; background:#fff;}
.cui_cld_daybox li{float:left; width:14%; height:45px; padding:4px 0; font:normal 12px/45px "verdana"; overflow:hidden; text-align:center;}
.cui_cld_daybox li:nth-child(7n),.cui_cld_daybox li:nth-child(7n+1){width:15%;}
.cui_cld_daypass{ background:#f7f7f7;}
.cui_cld_daycrt{background:#06a2d0; color:#fff;}
.cui_cld_dayfuture{background:#fff;}
.cui_cld_day_nocrtmonth{ visibility:hidden;}
.cui_cld_day_havetxt em{display:block; line-height:25px;}
.cui_cld_day_havetxt i{display:block;line-height:15px;}
.cui_cld_day_hint{color:#06a2d0;}
/*全局XXXX*/

/*弹出蓝色框*/
.cui-pop-box{background:#fff;}
.cui-text-center{text-align:center;}
.cui-pop-box .cui-hd{height:40px;line-height:40px;font-size:1.2em;color:#fff;background:#1491c5;padding:0 10px;position:relative;}
.cui-pop-box .cui-hd .cui-close{position:absolute;top:10px; right:10px; width:18px; height:18px;line-height:18px;border-radius:50%; background:#fff;color:#1491c5;text-align:center;font-weight:bold;}
.cui-error{width:150px;margin:auto;border-radius:5px;background:rgba(73,73,73,1);padding:10px;color:#fff;font-weight:700;text-align:center;word-break:break-all;}
.cui-select-view li{border-bottom:#dfdfdf 1px solid;padding:.8em 2em .8em .8em;white-space:nowrap; overflow:hidden; text-overflow:ellipsis;position:relative;}
.cui-select-view li.current{color:#1084bc;}
.cui-select-view li:active{background:rgba(0,0,0,.05);}
.cui-select-view li.current:before,.cui-select-view li.current:after{position:absolute;content:"";background:#1084bc;height:3px;top:50%;border-radius:3px;}
.cui-select-view li.current:before{width:18px;right:10px;margin-top:-2px;-webkit-transform:rotate(-50deg);-moz-transform:rotate(-50deg);-ms-transform:rotate(-50deg);transform:rotate(-50deg);}
.cui-select-view li.current:after{width:9px;right:22px;margin-top:2px;-webkit-transform:rotate(45deg);-moz-transform:rotate(45deg);-ms-transform:rotate(45deg);transform:rotate(45deg);}

.cui-roller{width:100%;height:90px;overflow:hidden;position:relative;display: -webkit-box;display: -moz-box;display: -ms-flexbox;display: -webkit-flex;display: flex;}
.cui-roller .ul-list{height:100%;text-align:center;font-size:1.1em;line-height:30px;-webkit-box-flex: 1;-moz-box-flex: 1;-webkit-flex: 1;-ms-flex: 1;flex: 1;}
.cui-mask{position:absolute;z-index:3;top: 0;left: 0;width: 100%;height: 100%;pointer-events: none;
background: linear-gradient(#fff 0,rgba(245,245,245,0) 52%,rgba(245,245,245,0) 48%,#fff 100%);
background: -webkit-gradient(linear,left bottom,left top,from(#fff),color-stop(0.52,rgba(245,245,245,0)),color-stop(0.48,rgba(245,245,245,0)),to(#fff));
background: -webkit-linear-gradient(#fff 0,rgba(245,245,245,0) 52%,rgba(245,245,245,0) 48%,#fff 100%);
background: -moz-linear-gradient(#fff 0,rgba(245,245,245,0) 52%,rgba(245,245,245,0) 48%,#fff 100%);
}
.cui-lines{width:100%;height:34px;position:absolute;top:50%;margin-top:-17px;border-top:#dfdfdf 1px solid;border-bottom:#dfdfdf 1px solid;}
.cui-roller-tips{color:#8d8d8d;padding:5px;text-align:center;}
.cui-roller-btns{background:#f6f5f5;padding:10px;text-align:center;}
.cui-roller-btns span{width:45%;display:inline-block;padding:10px 0;color:#fff;}
.cui-roller-btns span:active{opacity:.75;}
.cui-roller-btns .cui-btns-cancel{background:#a9a9a9;margin-right:5%;}
.cui-roller-btns .cui-btns-sure{background:#ff9913;}

</style>

// var myScroll = new iScroll('wl1');

(function () {
//！！！由于动画原因，获取值可能会出现不准确的情况，比如正在动画却已经取值了
//所以设置了一个冷却时间，在冷却时间的情况下设置值等操作不能进行
//为了保证唯一性，全部使用index作为索引算了
var ScrollRadio = function (opts) {
opts = opts || {};
//容器元素
this.wrapper = opts.wrapper || $(document);
this.body = [
'<div class="cui-roller">',
'<ul class="ul-list" style=" position: absolute; width: 100%; z-index: 2; " >',
'</ul>',
'<div class="cui-mask"></div>',
'<div class="cui-lines"> </div>',
'</div>'
].join('');
this.body = $(this.body);

//真正拖动的元素（现在是ul）
this.dragEl = this.body.find('.ul-list');
//数据源
this.data = opts.data || [];
this._changed = opts.changed || null;
//当前选项索引默认选择2项
this.selectedIndex = 1;

//当前选项值
// this.key = '';
//当前选项显示的值
// this.value = '';

/*
定位实际需要用到的信息
暂时不考虑水平移动吧
*/
this.itemHeight = 0; //单个item高度
this.dragHeight = 0; //拖动元素高度
this.dragTop = 0; //拖动元素top
this.animateParam = [10, 6, 2, 1, 0, 0, 0, 0, 0, 0, 0]; //动画参数
this.timeGap = 0; //时间间隔
this.touchTime = 0; //开始时间
this.moveAble = false; //是否正在移动
this.moveState = 'up'; //移动状态，up right down left
this.oTop = 0; //拖动前的top值
this.curTop = 0; //当前容器top
this.mouseY = 0; //鼠标第一次点下时相对父容器的位置
this.cooling = false; //是否处于冷却时间

this.init();
};
ScrollRadio.prototype = {
constructor: ScrollRadio,
init: function () {
this.initItem();
this.wrapper.append(this.body);
this.initEventParam();
this.bindEvent();

//需要判断是否是拉取元素，此处需要递归验证，这里暂时不管
//！！！！！！！！此处不严谨
var el = $(e.srcElement).parent(), pos;
if (el.hasClass('ul-list')) {
this.moveAble = true;

this.touchTime = e.timeStamp;
//获取鼠标信息
pos = this.getMousePos(e.changedTouches[0]);
//注意，此处是相对位置，注意该处还与动画有关，所以高度必须动态计算
//可以设置一个冷却时间参数，但想想还是算了
//最后还是使用了冷却时间
// var top = parseFloat(this.dragEl.css('top')) || 0;
// this.mouseY = pos.top - top;
this.mouseY = pos.top - this.curTop;
this.moveAble = true;
}
},
touchMove: function (e) {
if (!this.moveAble) return false;
var pos = this.getMousePos(e.changedTouches[0]);
//先获取相对容器的位置，在将两个鼠标位置相减
this.curTop = pos.top - this.mouseY;
this.dragEl.css('top', this.curTop + 'px');
e.preventDefault();
},
touchEnd: function (e) {
if (!this.moveAble) return false;
this.cooling = true; //开启冷却时间

//时间间隔
var scope = this;
this.timeGap = e.timeStamp - this.touchTime;
var flag = this.oTop <= this.curTop ? 1 : -1; //判断是向上还是向下滚动
var flag2 = this.curTop > 0 ? 1 : -1; //这个会影响后面的计算结果
this.moveState = flag > 0 ? 'up' : 'down';
var ih = parseFloat(this.itemHeight);
var ih1 = ih / 2;

var top = Math.abs(this.curTop);
var mod = top % ih;
top = (parseInt(top / ih) * ih + (mod > ih1 ? ih : 0)) * flag2;

this.selectedIndex = i;
this.curTop = (i * this.itemHeight * (-1) + this.itemHeight);
this.dragEl.css('top', this.curTop + 'px');
},
getSelected: function () {
return this.data[this.selectedIndex];
},
getByKey: function (k) { },
getByVal: function (v) { },
getByIndex: function (i) { },
//获取鼠标信息
getMousePos: function (event) {
var top, left;
top = Math.max(document.body.scrollTop, document.documentElement.scrollTop);
left = Math.max(document.body.scrollLeft, document.documentElement.scrollLeft);
return {
top: top + event.clientY,
left: left + event.clientX
};
}
};
window.ScrollRadio = ScrollRadio;

})();

var data = [];
for (var i = 0; i < 20; i++) {
var temp = { val: '选项-' + i };
data.push(temp);
}

var myScroll = new ScrollRadio({
wrapper: $('#ctripPage'),
data: data
});

$('#set').click(function () {
var i = prompt("请输入索引值")
if (i != null && i != "") {
myScroll.setIndex(i);
}
});

$('#get').click(function () {
var d = myScroll.getSelected();
var str = '';
for (var k in d) {
str += k + ': ' + d[k] + ',';
}
alert(str);
});

var s = '';

</script>
</body>
</html>

我们这里简单看看代码：

  1 (function () {

  2     //！！！由于动画原因，获取值可能会出现不准确的情况，比如正在动画却已经取值了

  3     //所以设置了一个冷却时间，在冷却时间的情况下设置值等操作不能进行

  4     //为了保证唯一性，全部使用index作为索引算了

  5     var ScrollRadio = function (opts) {

  6         opts = opts || {};

  7         //容器元素

  8         this.wrapper = opts.wrapper || $(document);

  9         this.body = [

 10     '<div class="cui-roller">',

 11         '<ul class="ul-list" style=" position: absolute; width: 100%; z-index: 2;  " >',

 12         '</ul>',

 13         '<div class="cui-mask"></div>',

 14         '<div class="cui-lines">&nbsp;</div>',

 15     '</div>'

 16 ].join('');

 17         this.body = $(this.body);

 18

 19         //真正拖动的元素（现在是ul）

 20         this.dragEl = this.body.find('.ul-list');

 21         //数据源

 22         this.data = opts.data || [];

 23         this._changed = opts.changed || null;

 24         //当前选项索引默认选择2项

 25         this.selectedIndex = 1;

 26

 27         //当前选项值

 28         //                this.key = '';

 29         //当前选项显示的值

 30         //                this.value = '';

 31

 32         /*

 33         定位实际需要用到的信息

 34         暂时不考虑水平移动吧

 35         */

 36         this.itemHeight = 0; //单个item高度

 37         this.dragHeight = 0; //拖动元素高度

 38         this.dragTop = 0; //拖动元素top

 39         this.animateParam = [10, 6, 2, 1, 0, 0, 0, 0, 0, 0, 0]; //动画参数

 40         this.timeGap = 0; //时间间隔

 41         this.touchTime = 0; //开始时间

 42         this.moveAble = false; //是否正在移动

 43         this.moveState = 'up'; //移动状态，up right down left

 44         this.oTop = 0; //拖动前的top值

 45         this.curTop = 0; //当前容器top

 46         this.mouseY = 0; //鼠标第一次点下时相对父容器的位置

 47         this.cooling = false; //是否处于冷却时间

 48

 49         this.init();

 50     };

 51     ScrollRadio.prototype = {

 52         constructor: ScrollRadio,

 53         init: function () {

 54             this.initItem();

 55             this.wrapper.append(this.body);

 56             this.initEventParam();

 57             this.bindEvent();

 58

 59             return this;

 60         },

 61         //增加数据

 62         initItem: function () {

 63             var _tmp, _data, i, k;

 64             for (var i in this.data) {

 65                 _data = this.data[i]

 66                 _tmp = $('<li>' + (_data.val == undefined ? i : _data.val) + '</li>');

 67                 _tmp.attr('data-index', i);

 68                 for (k in _data) {

 69                     _tmp.attr('data-' + k, _data[k]);

 70                 }

 71                 this.dragEl.append(_tmp);

 72             }

 73         },

 74         //初始化事件需要用到的参数信息

 75         initEventParam: function () {

 76             var offset = this.dragEl.offset();

 77             var itemOffset = this.dragEl.find('li').eq(0).offset();

 78             this.itemHeight = itemOffset.height

 79             this.dragTop = offset.top;

 80             this.dragHeight = this.dragEl[0].scrollHeight;

 81             var s = '';

 82         },

 83         bindEvent: function () {

 84             var scope = this;

 85             document.addEventListener("touchstart", function (e) {

 86                 scope.touchStart.call(scope, e);

 87             }, false);

 88             document.addEventListener("touchend", function (e) {

 89                 scope.touchEnd.call(scope, e);

 90             }, false);

 91             document.addEventListener("touchmove", function (e) {

 92                 scope.touchMove.call(scope, e);

 93             }, false);

 94         },

 95         touchStart: function (e) {

 96             if (this.cooling) return false; //冷却时间不能开始

 97

 98             //需要判断是否是拉取元素，此处需要递归验证，这里暂时不管

 99             //！！！！！！！！此处不严谨

100             var el = $(e.srcElement).parent(), pos;

101             if (el.hasClass('ul-list')) {

102                 this.moveAble = true;

103

104                 this.touchTime = e.timeStamp;

105                 //获取鼠标信息

106                 pos = this.getMousePos(e.changedTouches[0]);

107                 //注意，此处是相对位置，注意该处还与动画有关，所以高度必须动态计算

108                 //可以设置一个冷却时间参数，但想想还是算了

109                 //最后还是使用了冷却时间

110                 //                        var top = parseFloat(this.dragEl.css('top')) || 0;

111                 //                        this.mouseY = pos.top - top;

112                 this.mouseY = pos.top - this.curTop;

113                 this.moveAble = true;

114             }

115         },

116         touchMove: function (e) {

117             if (!this.moveAble) return false;

118             var pos = this.getMousePos(e.changedTouches[0]);

119             //先获取相对容器的位置，在将两个鼠标位置相减

120             this.curTop = pos.top - this.mouseY;

121             this.dragEl.css('top', this.curTop + 'px');

122             e.preventDefault();

123         },

124         touchEnd: function (e) {

125             if (!this.moveAble) return false;

126             this.cooling = true; //开启冷却时间

127

128             //时间间隔

129             var scope = this;

130             this.timeGap = e.timeStamp - this.touchTime;

131             var flag = this.oTop <= this.curTop ? 1 : -1; //判断是向上还是向下滚动

132             var flag2 = this.curTop > 0 ? 1 : -1; //这个会影响后面的计算结果

133             this.moveState = flag > 0 ? 'up' : 'down';

134             var ih = parseFloat(this.itemHeight);

135             var ih1 = ih / 2;

136

137             var top = Math.abs(this.curTop);

138             var mod = top % ih;

139             top = (parseInt(top / ih) * ih + (mod > ih1 ? ih : 0)) * flag2;

140

141             var step = parseInt(this.timeGap / 50);

142             step = step > 0 ? step : 0;

143             var speed = this.animateParam[step] || 0;

144             var increment = speed * ih * flag

145             top += increment;

146             //！！！此处动画可能导致数据不同步，后期改造需要加入冷却时间

147             if (this.oTop != this.curTop) {

148                 this.dragEl.animate({

149                     top: top + 'px'

150                 }, 100 + (speed * 20), 'ease-out', function () {

151                     var _top = top, t = false; ;

152                     if (top > ih) {

153                         _top = ih;

154                         t = true;

155                     }

156                     if (top < 0 && (top + scope.dragHeight < ih * 2)) {

157                         t = true;

158                         _top = (scope.dragHeight - ih * 2) * (-1);

159                     }

160                     if (t) {

161                         scope.dragEl.animate({

162                             top: _top + 'px'

163                         }, 10, 'ease-in-out', function () {

164                             scope.oTop = _top;

165                             scope.curTop = _top;

166                             scope.cooling = false; //关闭冷却时间

167                             scope.onTouchEnd();

168                         });

169                     } else {

170                         scope.cooling = false; //关闭冷却时间

171                         scope.oTop = top;

172                         scope.curTop = top;

173                         scope.onTouchEnd();

174                     }

175                 });

176             } else {

177                 this.cooling = false; //关闭冷却时间

178                 this.onTouchEnd();

179             }

180             this.moveAble = false;

181         },

182         onTouchEnd: function () {

183             var i = parseInt((this.curTop - this.itemHeight) / parseFloat(this.itemHeight));

184             this.selectedIndex = Math.abs(i);

185             var secItem = this.data[this.selectedIndex];

186             //触发变化事件

187             var changed = this._changed;

188             if (changed && typeof changed == 'function') {

189                 changed.call(this, secItem);

190             }

191             console.log(this.selectedIndex, secItem);

192         },

193         setKey: function (k) { },

194         setVal: function (v) { },

195         setIndex: function (i) {

196             var i = parseInt(i);

197             if (i >= this.data.length || i < 0) return false;

198

199             this.selectedIndex = i;

200             this.curTop = (i * this.itemHeight * (-1) + this.itemHeight);

201             this.dragEl.css('top', this.curTop + 'px');

202         },

203         getSelected: function () {

204             return this.data[this.selectedIndex];

205         },

206         getByKey: function (k) { },

207         getByVal: function (v) { },

208         getByIndex: function (i) { },

209         //获取鼠标信息

210         getMousePos: function (event) {

211             var top, left;

212             top = Math.max(document.body.scrollTop, document.documentElement.scrollTop);

213             left = Math.max(document.body.scrollLeft, document.documentElement.scrollLeft);

214             return {

215                 top: top + event.clientY,

216                 left: left + event.clientX

217             };

218         }

219     };

220     window.ScrollRadio = ScrollRadio;

221

222 })();

以上代码基本框架都出来了，也有注释，有兴趣的朋友自己看看，我们现在进行最后一步了，将日历搞上去，老夫来不起了。。。

日历插件:)

http://sandbox.runjs.cn/show/prii13pm

/*active*/
.list_st_border li:active,.p_hinttxt:active,.search_cancel:active,.citylist dd:active{ background:#f8f8f8;}
.btn_yellow:active{background:#eb840f;}

/*background-position*/
.select_n:before{width:20px;height:20px;background-position:-18px 0;}
.select_n.current:before{background-position:-44px 0;}

.list_sli{padding:10px; overflow:hidden; border-bottom:1px solid #cfcfcf; background:#fff;}
.list_sli .list_sunit{float:left;}

/*btn*/
.btn_yellow,.btn_del{width:100%; height:44px; line-height:42px; padding:0 10px; color:#fff;}
.btn_yellow{background:#ff9913;}
.btn_del{background:#ca4345;text-align:center;font-size:1.2em;}

</style>
<style type="text/css">
.c { position: absolute; top: 0; }
#y { left: 0; width: 30%; }
#m { left: 30%; right: 40%; }
#d { right: 0; width: 40%; }
</style>
<script src="../zepto.js" type="text/javascript"></script>
</head>
<body onselectstart="return false">
<div class="cui-pop-box">
<div class="cui-hd">
<div class="cui-text-center">
我是日历控件</div>
</div>
<div class="cui-bd">
<div style="height: 90px; position: relative;">
<div id="y" class="c">
</div>
<div id="m" class="c">
</div>
<div id="d" class="c">
</div>
</div>
<p class="cui-roller-tips">
点击获取日期吧！</p>
<div class="cui-roller-btns">
<span class="cui-btns-cancel" id="set">取消</span> <span class="cui-btns-sure" id="get">
获取日期</span>
</div>
</div>
</div>

// var myScroll = new iScroll('wl1');

(function () {
//！！！由于动画原因，获取值可能会出现不准确的情况，比如正在动画却已经取值了
//所以设置了一个冷却时间，在冷却时间的情况下设置值等操作不能进行
//为了保证唯一性，全部使用index作为索引算了
var ScrollRadio = function (opts) {
opts = opts || {};
//容器元素
this.wrapper = opts.wrapper || $(document);
var id = new Date().getTime() + Math.random() + 'id';
this.body = [
'<div class="cui-roller">',
'<ul class="ul-list" style=" position: absolute; width: 100%; z-index: 2; " id="' + id + '" >',
'</ul>',
'<div class="cui-mask"></div>',
'<div class="cui-lines"> </div>',
'</div>'
].join('');
this.body = $(this.body);

//当前选项值
// this.key = '';
//当前选项显示的值
// this.value = '';

this.init();
};
ScrollRadio.prototype = {
constructor: ScrollRadio,
init: function () {
this.initItem();
this.wrapper.append(this.body);
this.initEventParam();
this.bindEvent();
},
//增加数据
initItem: function () {
var _tmp, _data, i, k;
for (var i in this.data) {
_data = this.data[i]
_tmp = $('<li>' + (_data.val == undefined ? i : _data.val) + '</li>');
_tmp.attr('data-index', i);
for (k in _data) {
_tmp.attr('data-' + k, _data[k]);
}
this.dragEl.append(_tmp);
}
},
//初始化事件需要用到的参数信息
initEventParam: function () {
var offset = this.dragEl.offset();
var itemOffset = this.dragEl.find('li').eq(0).offset();
this.itemHeight = itemOffset.height
this.dragTop = offset.top;
this.dragHeight = this.dragEl[0].scrollHeight;
var s = '';
},
bindEvent: function () {
var scope = this;
this.dragEl[0].addEventListener("touchstart", function (e) {
scope.touchStart.call(scope, e);
}, false);
this.dragEl[0].addEventListener("touchend", function (e) {
scope.touchEnd.call(scope, e);
}, false);
this.dragEl[0].addEventListener("touchmove", function (e) {
scope.touchMove.call(scope, e);
}, false);
},
touchStart: function (e) {
if (this.cooling) return false; //冷却时间不能开始

var top = Math.abs(this.curTop);
var mod = top % ih;
top = (parseInt(top / ih) * ih + (mod > ih1 ? ih : 0)) * flag2;

})();

var yy = [];
for (var i = 0; i < 150; i++) {
var temp = { val: 1900 + i };
yy.push(temp);
}

var mm = [];
for (var i = 0; i < 12; i++) {
var temp = { val: i > 10 ? i : (0 + '' + i) };
mm.push(temp);
}

var dd = [];
for (var i = 0; i < 31; i++) {
var temp = { val: i > 10 ? i : (0 + '' + i) };
dd.push(temp);
}

var y = new ScrollRadio({
wrapper: $('#y'),
data: yy
});
var m = new ScrollRadio({
wrapper: $('#m'),
data: mm
});
var d = new ScrollRadio({
wrapper: $('#d'),
data: dd
});

$('#get').click(function () {
alert(y.getSelected().val + '-' + m.getSelected().val + '-' + d.getSelected().val);
});

var s = '';

</script>
</body>
</html>

今天时间用多了，老夫有点来不起了，我们下次再完善吧。。。。。。

结语

若是各位觉得有用的话不妨用一用，发现什么BUG请留言，我下次一并更新，BUG应该很多的。

分类: 移动开发

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日历插件(beta)

仿iphone日历插件(beta)

前言

关于工作

iphone的感觉

总体思路

测试代码

关于iscroll

zepto的touch事件

鼠标拖动

touchend

封装

整理封装

设置/获取

日历插件:)

结语

日历插件(beta)的更多相关文章

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