ikSelect是一个简单、快速、响应迅速、可访问的自定义选择下拉jQuery插件，可以使用自己的CSS进行完全样式化。

更多功能：

• 实时搜索。
• 支持选项组。
• 使用本机select元素。
• 移动友好型。
• 动态添加/删除选项和选项组。
• 强大的API。

参见：

• 替换Native Select Box的10个最佳下拉插件

目录：

• 初始化
• 可进入样式表对话框
• 选项
• API方法
• 事件

如何使用它:

1.在jQuery之后下载并加载ikSelect插件的脚本。

<script src="/path/to/cdn/jquery.min.js"></script>
<script src="/path/to/src/jquery.ikSelect.js"></script>

2.将插件附加到现有的选择要素

<select>
  <optgroup label="Seven Wonders of the Ancient World">
    <option>Great Pyramid of Giza</option>
    <option>Hanging Gardens of Babylon</option>
    <option>Statue of Zeus at Olympia</option>
    <option>Temple of Artemis at Ephesus</option>
    <option>Mausoleum at Halicarnassus</option>
    <option>Colossus of Rhodes</option>
    <option>Lighthouse of Alexandria</option>
  </optgroup>
  <optgroup label="Seven Natural Wonders of the World">
    <option>Grand Canyon</option>
    <option>Great Barrier Reef</option>
    <option>Harbor of Rio de Janeiro</option>
    <option>Mount Everest</option>
    <option>Aurora</option>
    <option>Parícutin volcano</option>
    <option>Victoria Falls</option>
  </optgroup>
</select>

$(function () {
  $('select').ikSelect();
});

3.将您自己的样式应用于自定义选择下拉列表。

.ik_select {
  /*
    Your Styles Here
  */
}

.ik_select_link {
  /*
    Your Styles Here
  */
}

.ik_select_link_focus {
  /*
    Your Styles Here
  */
}

.ik_select_link_disabled {
  /*
    Your Styles Here
  */
}

.ik_select_link_text {
  /*
    Your Styles Here
  */
}

.ik_select_dropdown {
  /*
    Your Styles Here
  */
}

.ik_select_list {
  /*
    Your Styles Here
  */
}

.ik_select_optgroup {
  /*
    Your Styles Here
  */
}

.ik_select_optgroup_label {
  /*
    Your Styles Here
  */
}

.ik_select_option {
  /*
    Your Styles Here
  */
}

.ik_select_option_label {
  /*
    Your Styles Here
  */
}

.ik_select_hover {
  /*
    Your Styles Here
  */
}

.ik_select_active {
  /*
    Your Styles Here
  */
}

.ik_select_filter_wrap {
  /*
    Your Styles Here
  */
}

.ik_select_filter {
  /*
    Your Styles Here
  */
}

.ik_nothing_found {
  /*
    Your Styles Here
  */
}

4.自定义选择下拉菜单。

$('select').ikSelect({

  // custom template
  syntax: '<div class="ik_select_link"><div class="ik_select_link_text"></div></div><div class="ik_select_dropdown"><div class="ik_select_list"></div></div>',

  // auto set the width of the select according to the longest option
  autoWidth: true,

  // auto set the width of the dropdown according to the longest option
  ddFullWidth: true,

  // include scrollbar width or not
  equalWidths: true, 

  // change the width of the select according to it's content
  dynamicWidth: false, 

  // move the select t the body when it is clicked along with the dropdown
  extractLink: false,

  // additional CSS classes
  customClass: '',

  // additional CSS classes for links
  linkCustomClass: '',

  // additional CSS classes for the dropdown
  ddCustomClass: '',

  // max height of the dropdown
  ddMaxHeight: 200,

  // extra width
  extraWidth: 0,

  // enable live search
  filter: false,
  nothingFoundText: 'Nothing found',

  // is disabled or not
  isDisabled: false,

});

5.您也可以通过HTML数据-*属性传递选项：

<select data-autowidth="true" data-customclass="someclass">
  ...
</select>

6.API方法。

// override defaults
$.ikSelect.extendDefaults(settings);

// reset
$(selector).ikSelect('reset');

// re-redner
$(selector).ikSelect('redraw');

// add options
$(selector).ikSelect('addOptions', optionObject[, optionIndex, optgroupIndex]);
// or
$(selector).ikSelect('addOptions', optionObjectsArray[, optionIndex, optgroupIndex]);

// add option groups
$(selector).ikSelect('addOptgroups', optgroupObject[, optgroupIndex]);
// or
$(selector).ikSelect('addOptgroups', optgroupObjectsArray[, optgroupIndex]);

// remove options
$(selector).ikSelect('removeOptions', optionIndex[, optgroupIndex]);
$(selector).ikSelect('removeOptions', optionIndexesArray[, optgroupIndex]);

// remove option groups
$(selector).ikSelect('removeOptgroups', optgroupIndex);
// or
$(selector).ikSelect('removeOptgroups', optgroupIndexesArray);

// select an option
$(selector).ikSelect('select', optionValue[, isIndex]);

// show the dropdown
$(selector).ikSelect('showDropdown');

// hide the dropdown
$(selector).ikSelect('hideDropdown');

// disable the select
$(selector).ikSelect('disable');

// enable the select
$(selector).ikSelect('enable');

// toggle the select
$(selector).ikSelect('toggle'[, enableOrDisable]);

// disable options
$(selector).ikSelect('disableOptions', optionIndexOrValue[, isIndex]);
// or
$(selector).ikSelect('disableOptions', optionIndexesOrValuesArray[, isIndex]);

// enable options
$(selector).ikSelect('enableOptions', optionIndexOrValue[, isIndex]);
// or
$(selector).ikSelect('enableOptions', optionIndexesOrValuesArray[, isIndex]);

// toggle options
$(selector).ikSelect('toggleOptions', optionIndexOrValue[, isIndex, enableOrDisable]);
$(selector).ikSelect('toggleOptions', optionIndexesOrValuesArray[, isIndex, enableOrDisable]);

// disable option groups
$(selector).ikSelect('disableOptgroups', optgroupIndex);
// or
$(selector).ikSelect('disableOptgroups', optgroupIndexesArray);

// enable option groups
$(selector).ikSelect('enableOptgroups', optgroupIndex);
// or
$(selector).ikSelect('enableOptgroups', optgroupIndexesArray);

// toggle option groups
$(selector).ikSelect('toggleOptgroups', optgroupIndex[, enableOrDisable]);
// or
$(selector).ikSelect('toggleOptgroups', optgroupIndexesArray[, enableOrDisable]);

// destroy
$(selector).ikSelect('detach');

7.回调函数。

$('select').ikSelect({
  onInit: function() {},
  onShow: function () {},
  onHide: function () {},
  onKeyUp: function () {},
  onKeyDown: function () {},
  onHoverMove: function () {}
});

预览截图

响应式可访问自定义选择下拉插件 jQuery ikSelect