3

我知道这已经讨论过好几次了，但我有一个有点不同的问题。当调用 .slideUp() 并且浏览器向下滚动以查看所有底部内容时，它会随着 div 滑动关闭而闪烁多次。

示例页面如下，只需单击它所说的位置，然后滑动到底部并关闭上面的 div 之一。

    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
    <head>
        <title>This is the title</title>
        <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js" type="text/javascript"></script>
        <script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.5/jquery-ui.min.js" type="text/javascript"></script>
        <script  type="text/javascript">
        $(document).ready(function() {

                    $('div.Accordion > div.Content').click(function() {
                        $(this).prev('div.collapsePanelHeader').slideDown(1000);
                        $(this).slideUp(1000);
                    });

                    $('div.Accordion > div.collapsePanelHeader').click(function() {
                        $(this).slideToggle(1000);
                        $(this).next('div.Content').slideToggle(1000);
                    });

                    $('div.Accordion > div.collapsePanelHeader2').click(function() {
                        $(this).toggleClass('accordionHeaderSelected','accordionHeader');
                        $(this).next('div.Content2').slideToggle(1000);
                    });

                });
        </script>
        <style type="text/css">
            .Accordion
            {
                font-size: .9em;
                background-color: #ebebeb;
                border: solid 2px #ccc;
                padding: 5px 10px;
                width: 500px;
            }
            p
            {
                font-size: 1em;
            }
            .collapsePanelHeader
            {
            }
            .HeaderContent
            {
                background-color: #ebebeb;
            }
            .Content
            {
                background-color: #fff;
                border: solid 1px #ccc;
                padding: 10px;
            }
            .accordionHeaderSelected
            {
                border: solid 1px #ccc;
                background-color: #EBEBEB;
                margin-bottom: 10px;
            }
            .accordionHeader
            {
                border: none;
                background-color: #EBEBEB;
                margin-bottom: 10px;
                text-decoration: none;
            }
            .collapsePanelHeader2
            {
            }
            .HeaderContent2
            {
                background-color: #ebebeb;
            }
            .Content2
            {
                background-color: #ebebeb;
                padding-left: 30px;
            }
            .gvCSections
            {
                padding-top: -10px;
            }
            .gvCSections tr td
            {
                padding: 5px;
            }
        </style>
    </head>
    <body>
        <div class="Accordion">
            <h2>Title Goes Here</h2>
            <hr style="border-top: none; border-bottom: 1px solid #999999;" />
            <div class="collapsePanelHeader">
            Click here Click here Click here Click here Click here Click here Click here Click here Click here Click here Click here Click here
                ... <span style="font-size: x-small; font-weight: bold; cursor: pointer; text-decoration: underline;">click for more</span>
            <br /><br /><br />
            </div>
            <div class="Content" style="display: none;">
            <div class="collapsePanelHeader3 accordionHeaderSelected">
                CourseDescription
            </div>
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    <br />
                    <strong>For more information, contact</strong>:
                    <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />

                    <strong>To enroll</strong>:
                    <br />
                    Click on a link below and complete the registration form.
            </div>
            <div class="collapsePanelHeader2 accordionHeader">
                <b>Click on this line</b>
            </div>
            <div class="Content2 accordionContent" style="display: none;">
                    <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
            </div>

            <h2>Title Goes Here</h2>
            <hr style="border-top: none; border-bottom: 1px solid #999999;" />
            <div class="collapsePanelHeader">
                Click here Click here Click here Click here Click here Click here Click here Click here Click here Click here Click here
                ... <span style="font-size: x-small; font-weight: bold; cursor: pointer; text-decoration: underline;">click for more</span>
                <br /><br /><br />
            </div>
            <div class="Content" style="display: none;">
            <div class="collapsePanelHeader3 accordionHeaderSelected">
                CourseDescription
            </div>
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    <br />
                    <strong>For more information, contact</strong>:
                    <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />

                    <strong>To enroll</strong>:
                    <br />
                    Click on a link below and complete the registration form.
            </div>
            <div class="collapsePanelHeader2 accordionHeader">
                <b>Click on this line</b>
            </div>
            <div class="Content2 accordionContent" style="display: none;">
                    <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
            </div>

            <h2>Title Goes Here</h2>
            <hr style="border-top: none; border-bottom: 1px solid #999999;" />
            <div class="collapsePanelHeader">
            Click here Click here Click here Click here Click here Click here Click here Click here Click here Click here
                ... <span style="font-size: x-small; font-weight: bold; cursor: pointer; text-decoration: underline;">click for more</span>
                <br /><br /><br />
            </div>
            <div class="Content" style="display: none;">
            <div class="collapsePanelHeader3 accordionHeaderSelected">
                CourseDescription
            </div>
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    <br />
                    <strong>For more information, contact</strong>:
                    <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />

                    <strong>To enroll</strong>:
                    <br />
                    Click on a link below and complete the registration form.
            </div>
            <div class="collapsePanelHeader2 accordionHeader">
                <b>Click on this line</b>
            </div>
            <div class="Content2 accordionContent" style="display: none;">
                    <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
                    Content Content                <br />
            </div>
        </div>
    </body>
</html>
4

2 回答 2

3

一个简单的解决方法是在关闭可折叠元素之前检查 body 元素的计算高度，然后将 body 的计算高度设置为其 CSS height 属性。

$('div.Accordion > div.collapsePanelHeader').click(function() {

    var body = $('body');
    body.css('height', 'auto');
    body.css('height', body.height());

    $(this).slideToggle(1000);
    $(this).next('div.Content').slideToggle(1000);
 });

这会强制 body 元素保持其高度，即使在关闭通常会将 body 重置/重绘到其早期默认高度的高面板时也是如此。

还要注意，在检查计算的高度之前，CSS 高度会重置为auto，否则 jQuery 会绕过计算的样式并使用上一次传递期间设置的值。

于 2011-01-28T22:57:39.060 回答
0

您是否尝试检测窗口是否滚动并居中或移动窗口。这只发生在窗口一直向下滚动并且内容变小因此您不再需要滚动时，滚动条/窗口的高度正在变化并开始闪烁。但我想这可能有点矫枉过正。

另一个想法刚刚出现在我的脑海中，您可以尝试检测您是否在屏幕底部，然后添加一个容纳屏幕总高度的容器，这应该可以解决闪烁问题，您最终会得到一个空白空间在页面的底部。

PS：如果您找到解决此问题的好方法，我会很感兴趣。

于 2011-01-27T20:22:52.690 回答