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我有黑白圖像顯示。當你將鼠標懸停在圖像上時,它會變成彩色圖像,這是一個單獨的文件(img-1.png和hover-img-1.png等)。 還有一個標題,應該總是顯示在圖像的頂部作爲絕對定位的div。jquery在懸停的交換圖像WITH標題
我的問題是,像做掉,但是當我把鼠標放在標題,圖像會回到B/W,而不是停留在顏色。
我錯過了什麼?
這是我目前擁有的代碼:
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
<style>
.galleryImg {
float:left;
margin: 10px 4px;
position:relative;
}
.caption {
position: absolute;
bottom: 10px;
right: 15px;
text-transform:uppercase;
font-size:14px;
}
</style>
<script type='text/javascript' src='jquery.js'></script>
<script type="text/javascript">
<!--
// wrap as a jQuery plugin and pass jQuery in to our anoymous function
(function ($) {
$.fn.cross = function (options) {
return this.each(function (i) {
// cache the copy of jQuery(this) - the start image
var $$ = $(this);
// get the target from the backgroundImage + regexp
var target = $$.css('backgroundImage').replace(/^url|[\(\)'"]/g, '');
// nice long chain: wrap img element in span
$$.wrap('<span style="position: relative;"></span>')
// change selector to parent - i.e. newly created span
.parent()
// prepend a new image inside the span
.prepend('<img>')
// change the selector to the newly created image
.find(':first-child')
// set the image to the target
.attr('src', target);
// the CSS styling of the start image needs to be handled
// differently for different browsers
if ($.browser.msie || $.browser.mozilla) {
$$.css({
'position' : 'absolute',
'left' : 0,
'background' : '',
'top' : this.offsetTop
});
} else if ($.browser.opera && $.browser.version < 9.5) {
// Browser sniffing is bad - however opera < 9.5 has a render bug
// so this is required to get around it we can't apply the 'top' : 0
// separately because Mozilla strips the style set originally somehow...
$$.css({
'position' : 'absolute',
'left' : 0,
'background' : '',
'top' : "0"
});
} else { // Safari
$$.css({
'position' : 'absolute',
'left' : 0,
'background' : ''
});
}
// similar effect as single image technique, except using .animate
// which will handle the fading up from the right opacity for us
$$.hover(function() {
$$.stop().animate({
opacity: 0
}, 250);
}, function() {
$$.stop().animate({
opacity: 1
}, 250);
});
});
};
})(jQuery);
// note that this uses the .bind('load') on the window object, rather than $(document).ready()
// because .ready() fires before the images have loaded, but we need to fire *after* because
// our code relies on the dimensions of the images already in place.
jQuery(window).bind('load', function() {
jQuery('img.fade').cross();
});
//-->
</script>
</head>
<body>
<div class="galleryImg">
<a href="some_link">
<img src="images/img-1.png" alt="" title="" class="fade" style="background: url(images/hover-img-1.png);" />
<div class="caption">This is Image 1</div>
</a>
</div>
<div class="galleryImg">
<a href="some_link">
<img src="images/img-2.png" alt="" title="" class="fade" style="background: url(images/hover-img-2.png);" />
<div class="caption">This is Image 2</div>
</a>
</div>
<div class="galleryImg">
<a href="some_link">
<img src="images/img-2.png" alt="" title="" class="fade" style="background: url(images/hover-img-2.png);" />
<div class="caption">This is Image 3</div>
</a>
</div>
</body>
對不起,但我是一個小白......我沒有寫代碼,我只是C/P-ED它...任何機會,你可以張貼整個代碼?因爲我按照你所說的嘗試替換,但沒有運氣。謝謝。 – user1078494 2012-01-27 00:34:42
「不運氣」意味着什麼?同一行爲,其他不正確的行爲?錯誤(S)?這實際上只是添加'.parent()'。 – Supr 2012-01-27 11:26:34
謝謝你回到我身邊。沒有運氣意味着我得到同樣的行爲。我按照你的建議添加了.parent(),但它仍然是一樣的 - 當我將鼠標懸停在文本上時,我的圖像又回到了b&w。我是瘋了還是什麼? – user1078494 2012-01-27 17:47:09