如何在不同的位置(使用abolute)按顺序无限地淡入和淡出多个图像?

时间:2013-10-01 23:03:54

标签: javascript jquery html css image

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<style type='text/css'>
    #rotating-item-wrapper {
    list-style-type:none;
    margin:0;
    padding:0;
    height: 150px;
}  
.rotating-item-wrapper li{
    float: left;
    list-style-type:none;
    width: 148px;
    height: 150px;
    margin: 0 0 0 6px;
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}
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.rotating-item{            
    display:block ;
    position: absolute;
    width: 148px;
    height: 150px;
  }

.harleypaint {
    position: absolute;
    left: 850px;
    top: -500px;
    z-index: 2;
    display:block ;

}  

.harleydraw {
    position: absolute;
    left: -125px;
    top: -400px;
    z-index: 2;
    display:block ;

}

.harleyguitar {
    position: absolute;
    left: -325px;
    top: -50px;
    z-index: 2;
    display:block ;

}

.harleystand {
    position: absolute;
    left: 450px;
    top: 10px;
    z-index: 2;
    display:block ;

}

.harleyblink {
    position: absolute;
    left: -100px;
    top: -450px;
    z-index: 2;
    display:block ;

}




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$(document).ready(function(){
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        {
            //initial fade-in time (in milliseconds)
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            var itemInterval = 1500;
            //cross-fade time (in milliseconds)
            var fadeTime = 3000;
            //count number of items
            var numberOfItems = $('.rotating-item').length;
            //set current item
            var currentItem = 0;
            //show first item
            $('.rotating-item').eq(currentItem).fadeIn(initialFadeIn);
            //loop through the items
            var infiniteLoop = setInterval(function(){
                $('.rotating-item').eq(currentItem).fadeOut(fadeTime);
                 var rand = Math.floor(Math.random()*(numberOfItems-1)) + 1;
            currentItem = (currentItem+rand) % numberOfItems;
                $('.rotating-item').eq(currentItem).fadeIn(fadeTime);
            }, itemInterval);
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  <style type='text/css'>
  .bmenu{
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}
.bmenu li{
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}

.bmenu li a{
    color: transparent;
    display: block;
    text-transform: uppercase;
    text-shadow: 0px 0px 4px #fff;
    letter-spacing: 1px;
    -webkit-transition: all 0.2s ease-in-out;
    -moz-transition: all 0.2s ease-in-out;
    -o-transition: all 0.2s ease-in-out;
    -ms-transition: all 0.2s ease-in-out;
    transition: all 0.2s ease-in-out;
    text-decoration: none;
}


.bmenu:hover li a{
    text-shadow: 0px 0px 6px #fff;
    text-decoration: none;
}
.bmenu li a:hover{
    color: #fff;
    text-shadow: 0px 0px 1px #fff;
    padding-left: 10px;
    text-decoration: none;
}

</style>  

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ul.nav a { zoom: 1; }  /* the zoom property gives IE the hasLayout trigger it needs to correct extra whiltespace between the links */
</style>
<![endif]-->
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<body>

<table align="center" border="0" style="border-spacing: 0">
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    <td width="598" height="267" >&nbsp;</td>
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  </tr>

  <tr>

    <div class="mainpage"><td bgcolor="#000000"><center><iframe src="http://player.vimeo.com/video/75329627?title=0&amp;byline=0&amp;portrait=0&amp;color=ffffff&amp;autoplay=1&amp;loop=1" width="600" height="350" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>
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</table>

 <ul class="rotating-item-wrapper">
    <li>

         <div class="harleypaint">
           <img src="http://www.xaluan.com/images/weathericon/48px/01.png">           </div>
           <div class="harleypaint" style="background-color: white;">
           </div>

    </li>
    <li>
           <div class="harleydraw">
           <img src="http://www.xaluan.com/images/weathericon/48px/01.png">           </div>
           <div class="harleydraw" style="background-color: white;">
           </div>

    </li>
    <li>
           <div class="harleyguitar">
           <img src="http://www.xaluan.com/images/weathericon/48px/01.png">           </div>
           <div class="harleyguitar" style="background-color: white;">
           </div>

    </li>
    <li>
           <div class="harleystand">
           <img src="http://www.xaluan.com/images/weathericon/48px/01.png">           </div>
           <div class="harleystand" style="background-color: white;">
           </div>

    </li><li>
           <div class="harleyblink">
           <img src="http://www.xaluan.com/images/weathericon/48px/01.png">           </div>
           <div class="harleyblink" style="background-color: white;">
           </div>

    </li>
</ul> 




</body>
</html>

我有一个我正在制作的网站,它会在页面中央有一个vimeo视频,旁边有一个菜单。因此,它最终将成为一个全白页,中间有一个黑色矩形。

该网站适用于艺术家。我试图让他的不同图像在黑色矩形周围的不同位置淡入淡出(除了美学之外)。菜单很简单,页面非常简约。在不同的地方淡入淡出的图片会给它带来“某种东西”......一种难以忘怀的效果。

我找到了随机代码,但我不希望一个图像能够背靠背地出现。我希望它从一个图像开始并移动到另一个图像,然后返回到第一个图像。大多数按顺序淡入淡出的东西并没有放在不同的位置(这是我遇到问题的地方)。我得到的代码工作,但一旦我放置图像(使用'绝对'定位)出错了。

当试图实现在线提供的帮助时,它不能满足我的需要。

我想我可以尝试逐字地调用每个图像的相同代码的更改版本(只是更改绝对位置和计时器),但这似乎是不必要的。它似乎也不像我能够拥有无限循环。

我为我的文章的篇幅感到抱歉,但我只是想清楚一点,关于淡入/淡出图像的'易于查找'的脚本和帖子不是我问题的答案。我搜索并搜索无济于事。

我知道我所拥有的代码根本不起作用,但是这是我最近一次在它上面挥杆的地方。谢谢提前!

1 个答案:

答案 0 :(得分:0)

这不是完美的,但应该让你开始。它循环显示一组图像并更改一个img标记上的src。然后它随机选择一个顶部和左侧位置并淡入淡出图像。 http://jsfiddle.net/bhlaird/TH7t7/3/

使用Javascript:

var images = [{
    src: "http://placeKitten.com/g/500/500",
    width: 500,
    height: 500
}, {
    src: "http://placeKitten.com/g/300/300",
    width: 300,
    height: 300
}, {
    src: "http://placeKitten.com/g/600/600",
    width: 600,
    height: 600
}, {
    src: "http://placeKitten.com/g/400/400",
    width: 400,
    height: 400
}, , {
    src: "http://placeKitten.com/g/200/200",
    width: 200,
    height: 200
}];


var counter = {
    val: 0,
    top: 0,
    left: 0
};

function getRandomInt(min, max) {
    return Math.floor(Math.random() * (max - min + 1)) + min;
}

function fadeImage(counter) {
    counter.top = getRandomInt(0, $("body").height() - images[counter.val].height);
    counter.left = getRandomInt(0, $("body").width() - images[counter.val].width);

    $("#haunting").fadeTo(2000, 0.3).delay(1000).fadeOut(2000);
    $("#haunting").attr({
        src: images[counter.val].src
    }).css({
        top: counter.top,
        left: counter.left
    });

    if (counter.val < images.length) counter.val++;
    else counter.val = 0;


}
setInterval(function () {
    fadeImage(counter);
}, 6000);

HTML:

<img id="haunting" style="display:none" src="http://placeKitten.com/g/500/200" />
<div id="video">
    <img src="http://placekitten.com/200/200" />
    <div id="menu">Some text</div>
</div>

CSS:

html, body {
    height: 100%;
}
#video {
    margin: auto;
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    width:200px;
    height:210px;
    text-align:center;
}
#haunting {
    position: absolute;
    top:0;
    left:0;
}