jQuery UI 实例 - 折叠面板（Accordion）

在一个有限的空间内显示用于呈现信息的可折叠的内容面板。

如需了解更多有关 accordion 部件的细节，请查看 API 文档 折叠面板部件（Accordion Widget）。

默认功能

点击头部展开/折叠被分为各个逻辑部分的内容，就像标签页（tabs）一样。您可以选择性地设置当鼠标悬停时是否切换各部分的打开/关闭状态。

基本的 HTML 标记是一系列的标题（H3 标签）和内容 div，因此内容不用通过 JavaScript 即可用。

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>jQuery UI 折叠面板（Accordion） - 默认功能</title>
  <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
  <script src="//code.jquery.com/jquery-1.9.1.js"></script>
  <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
  <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
  <script>
  $(function() {
    $( "#accordion" ).accordion();
  });
  </script>
</head>
<body>
 
<div id="accordion">
  <h3>部分 1</h3>
  <div>
    <p>
    Mauris mauris ante, blandit et, ultrices a, suscipit eget, quam. Integer
    ut neque. Vivamus nisi metus, molestie vel, gravida in, condimentum sit
    amet, nunc. Nam a nibh. Donec suscipit eros. Nam mi. Proin viverra leo ut
    odio. Curabitur malesuada. Vestibulum a velit eu ante scelerisque vulputate.
    </p>
  </div>
  <h3>部分 2</h3>
  <div>
    <p>
    Sed non urna. Donec et ante. Phasellus eu ligula. Vestibulum sit amet
    purus. Vivamus hendrerit, dolor at aliquet laoreet, mauris turpis porttitor
    velit, faucibus interdum tellus libero ac justo. Vivamus non quam. In
    suscipit faucibus urna.
    </p>
  </div>
  <h3>部分 3</h3>
  <div>
    <p>
    Nam enim risus, molestie et, porta ac, aliquam ac, risus. Quisque lobortis.
    Phasellus pellentesque purus in massa. Aenean in pede. Phasellus ac libero
    ac tellus pellentesque semper. Sed ac felis. Sed commodo, magna quis
    lacinia ornare, quam ante aliquam nisi, eu iaculis leo purus venenatis dui.
    </p>
    <ul>
      <li>List item one</li>
      <li>List item two</li>
      <li>List item three</li>
    </ul>
  </div>
  <h3>部分 4</h3>
  <div>
    <p>
    Cras dictum. Pellentesque habitant morbi tristique senectus et netus
    et malesuada fames ac turpis egestas. Vestibulum ante ipsum primis in
    faucibus orci luctus et ultrices posuere cubilia Curae; Aenean lacinia
    mauris vel est.
    </p>
    <p>
    Suspendisse eu nisl. Nullam ut libero. Integer dignissim consequat lectus.
    Class aptent taciti sociosqu ad litora torquent per conubia nostra, per
    inceptos himenaeos.
    </p>
  </div>
</div>
 
 
</body>
</html>

折叠内容

默认情况下，折叠面板总是保持一个部分是打开的。为了让所有部分都是折叠的，可设置 collapsible 选项为 true。点击当前打开的部分，来折叠它的内容面板。

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>jQuery UI 折叠面板（Accordion） - 折叠内容</title>
  <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
  <script src="//code.jquery.com/jquery-1.9.1.js"></script>
  <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
  <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
  <script>
  $(function() {
    $( "#accordion" ).accordion({
      collapsible: true
    });
  });
  </script>
</head>
<body>
 
<div id="accordion">
  <h3>部分 1</h3>
  <div>
    <p>Mauris mauris ante, blandit et, ultrices a, suscipit eget, quam. Integer ut neque. Vivamus nisi metus, molestie vel, gravida in, condimentum sit amet, nunc. Nam a nibh. Donec suscipit eros. Nam mi. Proin viverra leo ut odio. Curabitur malesuada. Vestibulum a velit eu ante scelerisque vulputate.</p>
  </div>
  <h3>部分 2</h3>
  <div>
    <p>Sed non urna. Donec et ante. Phasellus eu ligula. Vestibulum sit amet purus. Vivamus hendrerit, dolor at aliquet laoreet, mauris turpis porttitor velit, faucibus interdum tellus libero ac justo. Vivamus non quam. In suscipit faucibus urna. </p>
  </div>
  <h3>部分 3</h3>
  <div>
    <p>Nam enim risus, molestie et, porta ac, aliquam ac, risus. Quisque lobortis. Phasellus pellentesque purus in massa. Aenean in pede. Phasellus ac libero ac tellus pellentesque semper. Sed ac felis. Sed commodo, magna quis lacinia ornare, quam ante aliquam nisi, eu iaculis leo purus venenatis dui. </p>
    <ul>
      <li>List item one</li>
      <li>List item two</li>
      <li>List item three</li>
    </ul>
  </div>
  <h3>部分 4</h3>
  <div>
    <p>Cras dictum. Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Vestibulum ante ipsum primis in faucibus orci luctus et ultrices posuere cubilia Curae; Aenean lacinia mauris vel est. </p><p>Suspendisse eu nisl. Nullam ut libero. Integer dignissim consequat lectus. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos. </p>
  </div>
</div>
 
 
</body>
</html>

自定义图标

通过 icons 选项自定义标题图标，icons 选项接受标题默认的和激活的（打开的）状态的 class。使用 UI CSS 框架中的任意 class，或者使用背景图像创建自定义的 class。

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>jQuery UI 折叠面板（Accordion） - 自定义图标</title>
  <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
  <script src="//code.jquery.com/jquery-1.9.1.js"></script>
  <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
  <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
  <script>
  $(function() {
    var icons = {
      header: "ui-icon-circle-arrow-e",
      activeHeader: "ui-icon-circle-arrow-s"
    };
    $( "#accordion" ).accordion({
      icons: icons
    });
    $( "#toggle" ).button().click(function() {
      if ( $( "#accordion" ).accordion( "option", "icons" ) ) {
        $( "#accordion" ).accordion( "option", "icons", null );
      } else {
        $( "#accordion" ).accordion( "option", "icons", icons );
      }
    });
  });
  </script>
</head>
<body>
 
<div id="accordion">
  <h3>部分 1</h3>
  <div>
    <p>Mauris mauris ante, blandit et, ultrices a, suscipit eget, quam. Integer ut neque. Vivamus nisi metus, molestie vel, gravida in, condimentum sit amet, nunc. Nam a nibh. Donec suscipit eros. Nam mi. Proin viverra leo ut odio. Curabitur malesuada. Vestibulum a velit eu ante scelerisque vulputate.</p>
  </div>
  <h3>部分 2</h3>
  <div>
    <p>Sed non urna. Donec et ante. Phasellus eu ligula. Vestibulum sit amet purus. Vivamus hendrerit, dolor at aliquet laoreet, mauris turpis porttitor velit, faucibus interdum tellus libero ac justo. Vivamus non quam. In suscipit faucibus urna. </p>
  </div>
  <h3>部分 3</h3>
  <div>
    <p>Nam enim risus, molestie et, porta ac, aliquam ac, risus. Quisque lobortis. Phasellus pellentesque purus in massa. Aenean in pede. Phasellus ac libero ac tellus pellentesque semper. Sed ac felis. Sed commodo, magna quis lacinia ornare, quam ante aliquam nisi, eu iaculis leo purus venenatis dui. </p>
    <ul>
      <li>List item one</li>
      <li>List item two</li>
      <li>List item three</li>
    </ul>
  </div>
  <h3>部分 4</h3>
  <div>
    <p>Cras dictum. Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Vestibulum ante ipsum primis in faucibus orci luctus et ultrices posuere cubilia Curae; Aenean lacinia mauris vel est. </p><p>Suspendisse eu nisl. Nullam ut libero. Integer dignissim consequat lectus. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos. </p>
  </div>
</div>
 
<button id="toggle">切换图标</button>
 
 
</body>
</html>

填充空间

由于折叠面板是由块级元素组成的，默认情况下它的宽度会填充可用的水平空间。为了填充由容器分配的垂直空间，设置 heightStyle 选项为 "fill"，脚本会自动设置折叠面板的尺寸为父容器的高度。

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>jQuery UI 折叠面板（Accordion） - 填充空间</title>
  <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
  <script src="//code.jquery.com/jquery-1.9.1.js"></script>
  <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
  <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
  <style>
  #accordion-resizer {
    padding: 10px;
    width: 350px;
    height: 220px;
  }
  </style>
  <script>
  $(function() {
    $( "#accordion" ).accordion({
      heightStyle: "fill"
    });
  });
  $(function() {
    $( "#accordion-resizer" ).resizable({
      minHeight: 140,
      minWidth: 200,
      resize: function() {
        $( "#accordion" ).accordion( "refresh" );
      }
    });
  });
  </script>
</head>
<body>
 
<h3 class="docs">重新调整外部容器：</h3>
 
<div id="accordion-resizer" class="ui-widget-content">
  <div id="accordion">
    <h3>部分 1</h3>
    <div>
      <p>Mauris mauris ante, blandit et, ultrices a, suscipit eget, quam. Integer ut neque. Vivamus nisi metus, molestie vel, gravida in, condimentum sit amet, nunc. Nam a nibh. Donec suscipit eros. Nam mi. Proin viverra leo ut odio. Curabitur malesuada. Vestibulum a velit eu ante scelerisque vulputate.</p>
    </div>
    <h3>部分 2</h3>
    <div>
      <p>Sed non urna. Donec et ante. Phasellus eu ligula. Vestibulum sit amet purus. Vivamus hendrerit, dolor at aliquet laoreet, mauris turpis porttitor velit, faucibus interdum tellus libero ac justo. Vivamus non quam. In suscipit faucibus urna. </p>
    </div>
    <h3>部分 3</h3>
    <div>
      <p>Nam enim risus, molestie et, porta ac, aliquam ac, risus. Quisque lobortis. Phasellus pellentesque purus in massa. Aenean in pede. Phasellus ac libero ac tellus pellentesque semper. Sed ac felis. Sed commodo, magna quis lacinia ornare, quam ante aliquam nisi, eu iaculis leo purus venenatis dui. </p>
      <ul>
        <li>List item one</li>
        <li>List item two</li>
        <li>List item three</li>
      </ul>
    </div>
    <h3>部分 4</h3>
    <div>
      <p>Cras dictum. Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Vestibulum ante ipsum primis in faucibus orci luctus et ultrices posuere cubilia Curae; Aenean lacinia mauris vel est. </p><p>Suspendisse eu nisl. Nullam ut libero. Integer dignissim consequat lectus. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos. </p>
    </div>
  </div>
</div>
 
 
</body>
</html>

非自动高度

设置 heightStyle: "content"，让折叠面板保持它们初始的高度。

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>jQuery UI 折叠面板（Accordion） - 非自动高度</title>
  <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
  <script src="//code.jquery.com/jquery-1.9.1.js"></script>
  <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
  <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
  <script>
  $(function() {
    $( "#accordion" ).accordion({
      heightStyle: "content"
    });
  });
  </script>
</head>
<body>
 
<div id="accordion">
  <h3>部分 1</h3>
  <div>
    <p>Mauris mauris ante, blandit et, ultrices a, susceros. Nam mi. Proin viverra leo ut odio. Curabitur malesuada. Vestibulum a velit eu ante scelerisque vulputate.</p>
  </div>
  <h3>部分 2</h3>
  <div>
    <p>Sed non urna. Donec et ante. Phasellus eu ligula. Vestibulum sit amet purus. Vivamus hendrerit, dolor at aliquet laoreet, mauris turpis porttitor velit, faucibus interdum tellus libero ac justo. Vivamus non quam. In suscipit faucibus urna. </p>
  </div>
  <h3>部分 3</h3>
  <div>
    <p>Nam enim risus, molestie et, porta ac, aliquam ac, risus. Quisque lobortis. Phasellus pellentesque purus in massa. Aenean in pede. Phasellus ac libero ac tellus pellentesque semper. Sed ac felis. Sed commodo, magna quis lacinia ornare, quam ante aliquam nisi, eu iaculis leo purus venenatis dui. </p>
    <ul>
      <li>List item</li>
      <li>List item</li>
      <li>List item</li>
      <li>List item</li>
      <li>List item</li>
      <li>List item</li>
      <li>List item</li>
    </ul>
  </div>
</div>
 
 
</body>
</html>

当悬停时打开

点击头部展开/折叠被分为各个逻辑部分的内容，就像标签页（tabs）一样。您可以选择性地设置当鼠标悬停时是否切换各部分的打开/关闭状态。

基本的 HTML 标记是一系列的标题（H3 标签）和内容 div，因此内容不用通过 JavaScript 即可用。

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>jQuery UI 折叠面板（Accordion） - 当悬停时打开</title>
  <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
  <script src="//code.jquery.com/jquery-1.9.1.js"></script>
  <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
  <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
  <script>
  $(function() {
    $( "#accordion" ).accordion({
      event: "click hoverintent"
    });
  });
 
  /*
   * hoverIntent | Copyright 2011 Brian Cherne
   * http://cherne.net/brian/resources/jquery.hoverIntent.html
   * modified by the jQuery UI team
   */
  $.event.special.hoverintent = {
    setup: function() {
      $( this ).bind( "mouseover", jQuery.event.special.hoverintent.handler );
    },
    teardown: function() {
      $( this ).unbind( "mouseover", jQuery.event.special.hoverintent.handler );
    },
    handler: function( event ) {
      var currentX, currentY, timeout,
        args = arguments,
        target = $( event.target ),
        previousX = event.pageX,
        previousY = event.pageY;
 
      function track( event ) {
        currentX = event.pageX;
        currentY = event.pageY;
      };
 
      function clear() {
        target
          .unbind( "mousemove", track )
          .unbind( "mouseout", clear );
        clearTimeout( timeout );
      }
 
      function handler() {
        var prop,
          orig = event;
 
        if ( ( Math.abs( previousX - currentX ) +
            Math.abs( previousY - currentY ) ) < 7 ) {
          clear();
 
          event = $.Event( "hoverintent" );
          for ( prop in orig ) {
            if ( !( prop in event ) ) {
              event[ prop ] = orig[ prop ];
            }
          }
          // 防止访问原始事件，因为新事件会被异步触发，旧事件不再可用 (#6028)
          delete event.originalEvent;
 
          target.trigger( event );
        } else {
          previousX = currentX;
          previousY = currentY;
          timeout = setTimeout( handler, 100 );
        }
      }
 
      timeout = setTimeout( handler, 100 );
      target.bind({
        mousemove: track,
        mouseout: clear
      });
    }
  };
  </script>
</head>
<body>
 
<div id="accordion">
  <h3>部分 1</h3>
  <div>
    <p>
    Mauris mauris ante, blandit et, ultrices a, suscipit eget, quam. Integer
    ut neque. Vivamus nisi metus, molestie vel, gravida in, condimentum sit
    amet, nunc. Nam a nibh. Donec suscipit eros. Nam mi. Proin viverra leo ut
    odio. Curabitur malesuada. Vestibulum a velit eu ante scelerisque vulputate.
    </p>
  </div>
  <h3>部分 2</h3>
  <div>
    <p>
    Sed non urna. Donec et ante. Phasellus eu ligula. Vestibulum sit amet
    purus. Vivamus hendrerit, dolor at aliquet laoreet, mauris turpis porttitor
    velit, faucibus interdum tellus libero ac justo. Vivamus non quam. In
    suscipit faucibus urna.
    </p>
  </div>
  <h3>部分 3</h3>
  <div>
    <p>
    Nam enim risus, molestie et, porta ac, aliquam ac, risus. Quisque lobortis.
    Phasellus pellentesque purus in massa. Aenean in pede. Phasellus ac libero
    ac tellus pellentesque semper. Sed ac felis. Sed commodo, magna quis
    lacinia ornare, quam ante aliquam nisi, eu iaculis leo purus venenatis dui.
    </p>
    <ul>
      <li>List item one</li>
      <li>List item two</li>
      <li>List item three</li>
    </ul>
  </div>
  <h3>部分 4</h3>
  <div>
    <p>
    Cras dictum. Pellentesque habitant morbi tristique senectus et netus
    et malesuada fames ac turpis egestas. Vestibulum ante ipsum primis in
    faucibus orci luctus et ultrices posuere cubilia Curae; Aenean lacinia
    mauris vel est.
    </p>
    <p>
    Suspendisse eu nisl. Nullam ut libero. Integer dignissim consequat lectus.
    Class aptent taciti sociosqu ad litora torquent per conubia nostra, per
    inceptos himenaeos.
    </p>
  </div>
</div>
 
 
</body>
</html>

排序（Sortable）

拖拽标题来给面板重新排序。

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>jQuery UI 折叠面板（Accordion） - 排序（Sortable）</title>
  <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
  <script src="//code.jquery.com/jquery-1.9.1.js"></script>
  <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
  <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
  <style>
  /* 当排序时，IE 存在布局问题（查看 #5413） */
  .group { zoom: 1 }
  </style>
  <script>
  $(function() {
    $( "#accordion" )
      .accordion({
        header: "> div > h3"
      })
      .sortable({
        axis: "y",
        handle: "h3",
        stop: function( event, ui ) {
          // 当排序时，IE 不能注册 blur，所以触发 focusout 处理程序来移除 .ui-state-focus
          ui.item.children( "h3" ).triggerHandler( "focusout" );
        }
      });
  });
  </script>
</head>
<body>
 
<div id="accordion">
  <div class="group">
    <h3>部分 1</h3>
    <div>
      <p>Mauris mauris ante, blandit et, ultrices a, suscipit eget, quam. Integer ut neque. Vivamus nisi metus, molestie vel, gravida in, condimentum sit amet, nunc. Nam a nibh. Donec suscipit eros. Nam mi. Proin viverra leo ut odio. Curabitur malesuada. Vestibulum a velit eu ante scelerisque vulputate.</p>
    </div>
  </div>
  <div class="group">
    <h3>部分 2</h3>
    <div>
      <p>Sed non urna. Donec et ante. Phasellus eu ligula. Vestibulum sit amet purus. Vivamus hendrerit, dolor at aliquet laoreet, mauris turpis porttitor velit, faucibus interdum tellus libero ac justo. Vivamus non quam. In suscipit faucibus urna. </p>
    </div>
  </div>
  <div class="group">
    <h3>部分 3</h3>
    <div>
      <p>Nam enim risus, molestie et, porta ac, aliquam ac, risus. Quisque lobortis. Phasellus pellentesque purus in massa. Aenean in pede. Phasellus ac libero ac tellus pellentesque semper. Sed ac felis. Sed commodo, magna quis lacinia ornare, quam ante aliquam nisi, eu iaculis leo purus venenatis dui. </p>
      <ul>
        <li>List item one</li>
        <li>List item two</li>
        <li>List item three</li>
      </ul>
    </div>
  </div>
  <div class="group">
    <h3>部分 4</h3>
    <div>
      <p>Cras dictum. Pellentesque habitant morbi tristique senectus et netus et malesuada fames ac turpis egestas. Vestibulum ante ipsum primis in faucibus orci luctus et ultrices posuere cubilia Curae; Aenean lacinia mauris vel est. </p><p>Suspendisse eu nisl. Nullam ut libero. Integer dignissim consequat lectus. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos. </p>
    </div>
  </div>
</div>
 
 
</body>
</html>