运动高级--框架开发

时间：2016-06-05 23:03:36 阅读：317 评论：0 收藏：0 [点我收藏+]

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链式运动框架开发

回调函数

•运动停止时，执行函数

/**
 * @author miaov
 */
//获取行间样式
function getStyle(obj, attr)
{
    if(obj.currentStyle)
    {
        return obj.currentStyle[attr];
    }
    else
    {
        return getComputedStyle(obj, false)[attr];
    }
}
//计算对象 属性 数值 未执行函数

function startMove(obj, attr, iTarget, fn)
{
    clearInterval(obj.timer);
    obj.timer=setInterval(function (){
        //1.取当前的值
        var iCur=0;
        //判断对象是不是opacity 透明度
        if(attr==‘opacity‘)
        {
            iCur=parseInt(parseFloat(getStyle(obj, attr))*100);
        }
        else
        {
            iCur=parseInt(getStyle(obj, attr));
        }
        
        //2.算速度
        var iSpeed=(iTarget-iCur)/8;
        iSpeed=iSpeed>0?Math.ceil(iSpeed):Math.floor(iSpeed);
        
        //3.检测停止
        if(iCur==iTarget)
        {
            clearInterval(obj.timer);
            
            if(fn)
            {
                fn();
            }
        }
        else
        {
            if(attr==‘opacity‘)
            {
                obj.style.filter=‘alpha(opacity:‘+(iCur+iSpeed)+‘)‘;
                obj.style.opacity=(iCur+iSpeed)/100;
            }
            else
            {
                obj.style[attr]=iCur+iSpeed+‘px‘;
            }
        }
    }, 30)
}

move

•运动停止时，开始下一次运动

•例子：土豆网右下角菜单

<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<style type="text/css">
*{margin:0;padding:0;font: 12px/1.25 tahoma,arial,宋体,sans-serif;}
li{list-style:none;}
a{text-decoration:none;}
body{width:100%;height:100%;background:#000;_position:relative;overflow:hidden;}
.page{position:fixed;_position:absolute;right:0;bottom:0;}
#miaov_bottom{width:203px;height: 50px;background:url(minibar.png) no-repeat 0 0;position:absolute;right:-165px;bottom:0;z-index: 20001;}
#nav{height: 22px;margin: 5px 0 0 43px;width: 125px;}
#nav li{float: left;width: 25px;}
#nav li a{display: block;height: 22px;width: 25px;}
#nav li .show,#nav li a:hover{background: url(minibar.png) no-repeat 0 -51px;}
#nav .li_1 .show,#nav .li_1 a:hover{background-position:-25px -51px}
#nav .li_2 .show,#nav .li_2 a:hover{background-position:-50px -51px}
#nav .li_3 .show,#nav .li_3 a:hover{background-position:-75px -51px}
#nav .li_4 .show,#nav .li_4 a:hover{background-position:-100px -51px}
.miaov{color: #FFFFFF;height: 16px;margin: 4px 0 0 8px;overflow: hidden;width: 160px;}
#but{ bottom: 0;display: block;height: 50px;position: absolute;right: 0;width: 33px;z-index:20002;}
.but_hide{background: url(minibar.png) no-repeat -170px 0;}
.but_hide:hover{background-position:-203px 0;}
.but_show{background: url(minibar.png) no-repeat -236px 0;}
.but_show:hover{background-position:-269px 0;}
#miaov_box{bottom:-315px;display:none;height: 315px;padding: 0 0 48px;position: absolute;right: 1px;width: 200px; z-index: 20000;}
.bg{background: url(mini_jpgs.jpg) no-repeat 0 0;height: 315px;opacity: 0.9;position: absolute;right: 0;top: 0;width: 200px;}
.nav2_bg{bottom: 48px;height: 176px;left: 0;position: absolute;width: 34px;background: url(mini_jpgs.jpg) no-repeat 0 -139px;}
#list_nav{background: url(minibar.png) no-repeat scroll 0 -255px transparent;height: 139px;left: 0;position: absolute;top: 2px;width: 34px;}
#list_nav a{ color: #FFFFFF;display: block;height: 27px;line-height: 25px;text-align: center;text-decoration: none;}
#list_nav .show{color: #FF9900;}
#list_nav a:hover{color:#FFFF00;}
.clos{ background: url(minibar.png) no-repeat 0 -76px ;cursor: pointer;height: 9px;position: absolute;right: 10px;top: 14px;width: 9px;}
.box_right{color: #FFFFFF;
    height: 285px;
    overflow: hidden;
    position: absolute;
    right: 6px;
    top: 28px;
    width: 150px;}
</style>
<script type="text/javascript" src="../move.js"></script>
<script type="text/javascript">
window.onload=function ()
{
    var oBtnShow=document.getElementById(‘but‘);
    var oBtnClose=document.getElementById(‘btn_close‘);
    var oBottom=document.getElementById(‘miaov_bottom‘);
    var oBox=document.getElementById(‘miaov_box‘);
    
    oBtnShow.onclick=function ()
    {
        startMove(oBottom, ‘right‘, 0, function (){
            oBox.style.display=‘block‘;
            startMove(oBox, ‘bottom‘, 0);
        });
    };
    
    oBtnClose.onclick=function ()
    {
        startMove(oBox, ‘bottom‘, -315, function (){
            oBox.style.display=‘none‘;
            startMove(oBottom, ‘right‘, -165);
        });
    };
};
</script>
</head>
<body>
<div class="page">
    <div id="miaov_bottom">
        <ul id=‘nav‘>
            <li><a href="###"></a></li>
            <li class=‘li_1‘><a href="###"></a></li>       
            <li class=‘li_2‘><a href="###"></a></li>       
            <li class=‘li_3‘><a href="###"></a></li>       
            <li class=‘li_4‘><a href="###"></a></li>      
        </ul>
        <h2 class="miaov">妙味课堂 www.miaov.com</h2>
    </div>
    <a class="but_show" id="but" href="###"></a>
    <div id="miaov_box">
        <div class="bg"></div>
        <div class="nav2_bg"></div>
        <ul id="list_nav">       
            <li><a  class="show" href="http://www.miaov.com" target="_blank">天气</a></li>
            <li class="tab2"><a href="http://www.miaov.com" target="_blank">星座</a></li>
            <li class="tab3"><a href="http://www.miaov.com" target="_blank">排行</a></li>
            <li class="tab4"><a href="http://www.miaov.com" target="_blank">热点</a></li>
            <li class="tab5"><a href="http://www.miaov.com" target="_blank">直播</a></li>
        </ul>
        <a class=‘clos‘ id="btn_close"></a>
        <div class="box_right">  
            <div>北京</div>      
                <div>    
                    <div>     
                        <strong><em>今天</em> (周二)</strong>           
                        <img title="晴" src="01.gif" class="pic">         
                    </div>    
                    <span>-1~10C°</span>
                    <span>晴</span>
                    <span>微风小于3级</span>   
                </div>      
                <div >    
                    <div>     
                        <strong><em>明天</em> (周三)</strong>           
                        <img title="多云" src="02.gif" class="pic">         
                    </div>    
                    <span>0~11C°</span>
                    <span>多云</span>
                    <span>北风3-4级</span>   
                </div>      
                <div>    
                    <div>     
                        <strong><em>后天</em> (周四)</strong>           
                        <img title="晴" src="01.gif" class="pic">         
                    </div>    
                    <span>-1~12C°</span>
                    <span>晴</span>
                    <span>北风3-4级 转 微风小于3级</span>   
                </div>     
            </div>
        </div>
    </div>
</div>  
</body>
</html>

menus

完美运动框架开发

l多个值同时变化

•setStyle同时设置多个属性

–参数传递

»Json的使用

»for in遍历属性

支持对象传入多个属性！

/**
 * @author miaov
 */
function getStyle(obj, attr)
{
    if(obj.currentStyle)
    {
        return obj.currentStyle[attr];
    }
    else
    {
        return getComputedStyle(obj, false)[attr];
    }
}

function startMove(obj, json, fn)
{
    clearInterval(obj.timer);
    obj.timer=setInterval(function (){
        var bStop=true;        //这一次运动就结束了——所有的值都到达了
        for(var attr in json)
        {
            //1.取当前的值
            var iCur=0;
            
            if(attr==‘opacity‘)
            {
                iCur=parseInt(parseFloat(getStyle(obj, attr))*100);
            }
            else
            {
                iCur=parseInt(getStyle(obj, attr));
            }
            
            //2.算速度
            var iSpeed=(json[attr]-iCur)/8;
            iSpeed=iSpeed>0?Math.ceil(iSpeed):Math.floor(iSpeed);
            
            //3.检测停止
            if(iCur!=json[attr])
            {
                bStop=false;
            }
            
            if(attr==‘opacity‘)
            {
                obj.style.filter=‘alpha(opacity:‘+(iCur+iSpeed)+‘)‘;
                obj.style.opacity=(iCur+iSpeed)/100;
            }
            else
            {
                obj.style[attr]=iCur+iSpeed+‘px‘;
            }
        }
        
        if(bStop)
        {
            clearInterval(obj.timer);
            
            if(fn)
            {
                fn();
            }
        }
    }, 30)
}

move2

•运用到运动框架

•检测运动停止

–标志变量

•例子：伸缩同时淡入淡出的菜单

<!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>
<style>
* {margin:0; padding:0;}
#ul1 li {width:100px; height:20px; line-height:20px; text-align:center; position:relative; float:left; list-style:none; background:#9F3; border:1px solid #660;}
#ul1 li div {background:#CCC; overflow:hidden; position:absolute; top:20px; width:100%; height:0; filter:alpha(opacity:0); opacity:0;}
</style>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<script src="move2.js"></script>
<script>
window.onload=function ()
{
    var oUl=document.getElementById(‘ul1‘);
    var aLi=oUl.getElementsByTagName(‘li‘);
    var i=0;
    
    for(i=0;i<aLi.length;i++)
    {  //获取li中的鼠标抚摸事件
        aLi[i].onmouseover=function ()
        {
            //获取当前抚摸这个li的事件内的div
            var oDiv=this.getElementsByTagName(‘div‘)[0];
               //设置属性
            oDiv.style.height=‘auto‘;
            var iHeight=oDiv.offsetHeight;
            oDiv.style.height=0;
                 //用引进来的函数设置透明度
            startMove(oDiv, {opacity: 100, height:iHeight});
        };
             //获取当前鼠标抬起事件
        aLi[i].onmouseout=function ()
        {
            var oDiv=this.getElementsByTagName(‘div‘)[0];
          //把div隐藏
            startMove(oDiv, {opacity: 0, height: 0});
        };
    }
};
</script>
</head>

<body>
<ul id="ul1">
    <li>
        首页
        <div>
            我的论坛<br />
            我的微博
            我的博客<br />
            我的笔记
        </div>
    </li>
    <li>
        产品
        <div>
            销量<br />
            品质<br />
质量<br />
二维码<br />
是否合格<br />
            vsfd<br />
            sadfsd
        </div>
    </li>
    <li>
        关于
        <div>
            网站问题<br />
            网站报错  <br />
            网站漏洞
            举报网站<br />
            联系我们
        </div>
    </li>
</ul>
</body>
</html>

get move

运动框架总结

l运动框架演变过程

•startMove(iTarget) 运动框架

•startMove(obj, iTarget) 多物体

•startMove(obj, attr, iTarget) 任意值

•startMove(obj, attr, iTarget, fn) 链式运动

•startMove(obj, json) 多值运动

•startMove(obj, json, fn) 完美运动框架

运动框架开发应用

•例子：多图片展开、收缩

–布局转换

<!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>
<style>
* {margin:0; padding:0;}
#ul1 {width:366px; margin:0 auto; position:relative;}
#ul1 li {list-style:none; width:100px; height:100px; background:#CCC; border:1px solid black; float:left; margin:10px;}
</style>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title
<script src="move2.js"></script>
//记得加载函数
<script>
window.onload=function ()
{
    var oUl=document.getElementById(‘ul1‘);
    var aLi=oUl.getElementsByTagName(‘li‘);
    var i=0;
    
    //1.布局转换
    for(i=0;i<aLi.length;i++)
    {
        //aLi[i].innerHTML=‘left:‘+aLi[i].offsetLeft+‘, top:‘+aLi[i].offsetTop;
        aLi[i].style.left=aLi[i].offsetLeft+‘px‘;
        aLi[i].style.top=aLi[i].offsetTop+‘px‘;
    }
    //2加绝对定位
    for(i=0;i<aLi.length;i++)
    {
        aLi[i].style.position=‘absolute‘;
        aLi[i].style.margin=‘0‘;
    }
    
    //3.加事件
    for(i=0;i<aLi.length;i++)
    {
        aLi[i].onmouseover=function ()
        {
            startMove(this, {width: 200, height: 200, marginLeft: -50, marginTop: -50});
        };
        
        aLi[i].onmouseout=function ()
        {
            startMove(this, {width: 100, height: 100, marginLeft: 0, marginTop: 0});
        };
    }
};
</script>
</head>

<body>
<ul id="ul1">
    <li></li>
    <li></li>
    <li></li>
    <li></li>
    <li></li>
    <li></li>
    <li></li>
    <li></li>
    <li></li>
    <li></li>
</ul>
</body>
</html>

onmove picture

技术分享

抚摸图片后实现效果

技术分享

原理抚摸到哪个设那个index+1；

技术分享

•例子：新浪微博

–链式运动

引入move.js

<script>
window.onload=function ()
{
    var oDiv=document.getElementById(‘div1‘);
    
    oDiv.onmouseover=function ()
    {
        //函数封装里面加事件
        startMove(oDiv, ‘width‘, 300, function (){
            startMove(oDiv, ‘height‘, 300, function (){
                startMove(oDiv, ‘opacity‘, 100);
            });
        });
    };
    
    oDiv.onmouseout=function ()
    {
        startMove(oDiv, ‘opacity‘, 30, function (){
            startMove(oDiv, ‘height‘, 100, function (){
                startMove(oDiv, ‘width‘, 100);
            });
        });
    };
};
</script>

moves

先变宽在变高，

•无缝滚动

–走到一半拉回来

<!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>
<style>
* {margin:0; padding:0;}
body{ background:#9F0;}
#div1 {position:relative; border:1px solid black; width:680px; height:132px; margin:10px auto; overflow:hidden;}
#div1 ul {position:absolute; left:0; background:#CCC;}
#div1 ul li {list-style:none; float:left; width:150px; height:112px; padding:10px;}
#div1 ul li img {width:150px;}
</style>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<script>
window.onload=function ()
{
    var oDiv=document.getElementById(‘div1‘);
    var oUl=oDiv.getElementsByTagName(‘ul‘)[0];
    var aLi=oUl.getElementsByTagName(‘li‘);
    //获取小箭头
    var aA=document.getElementsByTagName(‘a‘);
    var timer=null;
    var iSpeed=10;
    //动态设置ul的宽
    oUl.innerHTML+=oUl.innerHTML;
    oUl.style.width=aLi.length*aLi[0].offsetWidth+‘px‘;
    
    function fnMove()
    {
        //跑一半拉回来
        if(oUl.offsetLeft<-oUl.offsetWidth/2)
        {
            oUl.style.left=0;
        }
        else if(oUl.offsetLeft>0)
        {
            oUl.style.left=-oUl.offsetWidth/2+‘px‘;
        }
        oUl.style.left=oUl.offsetLeft+iSpeed+‘px‘;
    }
    
    timer=setInterval(fnMove, 30);
    //添加小箭头事件
    aA[0].onclick=function ()
    {
        iSpeed=-10;
    };
    aA[1].onclick=function ()
    {
        iSpeed=10;
    };
    //添加鼠标移入停止事件
    oDiv.onmouseover=function ()
    {
        clearInterval(timer);
    };
    //添加移除开始移动
    oDiv.onmouseout=function ()
    {
        timer=setInterval(fnMove, 30);
    };
};
</script>
</head>

<body>
<a href="javascript:;">←</a>
<a href="javascript:;">→</a>
<div id="div1">
    <ul>
        <li><img src="1.jpg" /></li>
        <li><img src="2.jpg" /></li>
        <li><img src="3.jpg" /></li>
        <li><img src="4.jpg" /></li>
    </ul>
</div>
</body>
</html>