Question

我有这个表达：

$('#animationNext,#animationPrev').bind('mousedown',function(){        
    $('.nInfoIE').show();
    $('ul.roundabout-holder li').find('.iframe').css({'visibility':'hidden'});
    $('ul.roundabout-holder li').find('.iframe').addClass('esconder');

    // more code...

    watching = false;
    $('.nInfoIE').hide();
});

请注意我在问题中删除了许多表达。

情况是这在所有浏览器中都很好用，但是在IE6中需要执行10倍loge（我说的是7秒左右！）所以我试图在{1}处显示<div class="nInfoIE"> beggining（包含一个loding图像）并在最后隐藏它，

但它似乎都是在同一时间执行，因为我永远看不到nInfoIe的内容，

我怎样才能确定我之前会看到它，然后其余部分被执行？

-EDIT- html代码：

<ul class="roundabout-holder" style="padding: 0px; position: relative; z-index: 100;">
    <li class="roundabout-moveable-item roundabout-in-focus" style=
    "position: absolute; left: 157.2px; top: -0.8px; width: 240px; height: 160px; opacity: 1; z-index: 400; font-size: 16px;"
    current-scale="1.0000">
      <a href="#" title="video#1"><img src="http://img.youtube.com/vi/qZ9jpnMGkdA/0.jpg"
      class="thumbImg"><img alt="video#1" class="playIcon" src=
      "img/playIcon.png"><span class="titulo titThumb">video#1</span></a>

      <div class="iframe esconder">
        <iframe width="560" height="315" frameborder="0" allowfullscreen="" src=
        "http://youtube.com/embed/qZ9jpnMGkdA"></iframe>
      </div><span class="titulo titIframe">video#1</span>
    </li>

    <li class="roundabout-moveable-item" style=
    "position: absolute; left: -58.8px; top: 23.2px; width: 168px; height: 112px; opacity: 0.7; z-index: 250; font-size: 11.2px;"
    current-scale="0.7000">
      <a href="#" title="video#2"><img src="http://img.youtube.com/vi/hurnoKLuBD8/0.jpg"
      class="thumbImg"><img alt="video#2" class="playIcon" src=
      "img/playIcon.png"><span class="titulo titThumb">video#2</span></a>

      <div class="iframe esconder">
        <iframe width="560" height="315" frameborder="0" allowfullscreen="" src=
        "http://youtube.com/embed/hurnoKLuBD8"></iframe>
      </div><span class="titulo titIframe">video#2</span>
    </li>

    <li class="roundabout-moveable-item" style=
    "position: absolute; left: 229.2px; top: 47.2px; width: 96px; height: 64px; opacity: 0.4; z-index: 100; font-size: 6.4px;"
    current-scale="0.4000">
      <a href="#" title="video#3"><img src="http://img.youtube.com/vi/Lk_WoaLUPdA/0.jpg"
      class="thumbImg"><img alt="video#3" class="playIcon" src=
      "img/playIcon.png"><span class="titulo titThumb">video#3</span></a>

      <div class="iframe esconder">
        <iframe width="560" height="315" frameborder="0" allowfullscreen="" src=
        "http://youtube.com/embed/Lk_WoaLUPdA"></iframe>
      </div><span class="titulo titIframe">video#3</span>
    </li>

    <li class="roundabout-moveable-item" style=
    "position: absolute; left: 445.2px; top: 23.2px; width: 168px; height: 112px; opacity: 0.7; z-index: 250; font-size: 11.2px;"
    current-scale="0.7000">
      <a href="#" title="video#4"><img src="http://img.youtube.com/vi/m5ykAFtQgQ0/0.jpg"
      class="thumbImg"><img alt="video#4" class="playIcon" src=
      "img/playIcon.png"><span class="titulo titThumb">video#4</span></a>

      <div class="iframe esconder">
        <iframe width="560" height="315" frameborder="0" allowfullscreen="" src=
        "http://youtube.com/embed/m5ykAFtQgQ0"></iframe>
      </div><span class="titulo titIframe">video#4</span>
    </li>
  </ul>

Answer 1

我只能假设“更多代码”部分适用于一个或多个ajax请求。触发ajax请求后，即使尚未完成ajax请求，也会处理下一个表达式。您应该在ajax请求的完整事件中隐藏加载图像。

$.ajax({
  type: 'POST',
  url: url,
  data: data,
  success: success,
  complete: function() { watching = false;
                    $('nInfoIE').hide(); }
});

如果有多个ajax请求会变得有点复杂，你必须嵌套它们或者使用某种ajax队列管理器。

Answer 2

嗯，你提供了代码，但是我看不到任何带有类名“nInfoIE”的元素，这在这里有点相关。

但是，我注意到你的选择器：

$('nInfoIE').show();

由于您尝试按类名获取元素，因此必须指定“。”在它面前。它应该是

$('.nInfoIE').show();

显示'加载'在函数开头不工作/发生得太快

2 个答案: