twitter-bootstrap - Jquery-ui 自动完成和 Bootstrap 3 固定导航栏

Question

我正在尝试使用 jquery ui 和 twitter bootstarp 进行自动完成搜索。我在导航栏中添加了一个 facny 搜索框，一切似乎都运行良好。请查看下面的代码片段，或者您也可以在此 JSFiddle 上看到相同的代码，只需键入“a”，它就会自动在下拉列表中显示结果。

问题出在平板电脑和移动版的 bootstrap 导航栏上，例如下面的代码片段默认显示平板电脑版，所以 bootstarp 导航栏调整了它的高度，但是当我在平板电脑或移动版上搜索时，自动完成结果留在导航栏后面，这是固定位置。我试图通过 z-index 和更改 .ui-autocomplete {position:relative;} 来解决这个问题，但对我来说没有任何效果。下面是这个问题的图片。

请看下面的代码片段，谢谢

$(function () {
        // Remove Search if user Resets Form or hits Escape!
		$('body, .navbar-collapse form[role="search"] button[type="reset"]').on('click keyup', function(event) {
			console.log(event.currentTarget);
			if (event.which == 27 && $('.navbar-collapse form[role="search"]').hasClass('active') ||
				$(event.currentTarget).attr('type') == 'reset') {
				closeSearch();
			}
		});

		function closeSearch() {
            var $form = $('.navbar-collapse form[role="search"].active')
    		$form.find('input').val('');
			$form.removeClass('active');
		}

		// Show Search if form is not active // event.preventDefault() is important, this prevents the form from submitting
		$(document).on('click', '.navbar-collapse form[role="search"]:not(.active) button[type="submit"]', function(event) {
			event.preventDefault();
			var $form = $(this).closest('form'),
				$input = $form.find('input');
			$form.addClass('active');
			$input.focus();

		});
    });

$(function() {
    var availableTags = [
      "ActionScript",
      "AppleScript",
      "Asp",
      "BASIC",
      "C",
      "C++",
      "Clojure",
      "COBOL",
      "ColdFusion",
      "Erlang",
      "Fortran",
      "Groovy",
      "Haskell",
      "Java",
      "JavaScript",
      "Lisp",
      "Perl",
      "PHP",
      "Python",
      "Ruby",
      "Scala",
      "Scheme"
    ];
    $( "#search" ).autocomplete({
      source: availableTags
    });
  });

body {
		padding: 60px 0px;
	}
	.navbar-collapse {
		position: relative;
		padding-top: 30px !important;
		max-height: 270px;
	}
	.navbar-collapse form[role="search"] {
		position: absolute;
		top: 0px;
		right: 0px;
		width: 100%;
		padding: 0px;
		margin: 0px;
		z-index: 0;
	}
	.navbar-collapse form[role="search"] button,
	.navbar-collapse form[role="search"] input {
		padding: 8px 12px;
		border-radius: 0px;
		border-width: 0px;
		color: rgb(119, 119, 119);
		background-color: rgb(248, 248, 248);
		border-color: rgb(231, 231, 231);
		box-shadow: none;
		outline: none;
	}
	.navbar-collapse form[role="search"] input {
		padding: 16px 12px;
		font-size: 14pt;
		font-style: italic;
		color: rgb(160, 160, 160);
		box-shadow: none;
	}
	.navbar-collapse form[role="search"] button[type="reset"] {
		display: none;
	}

	@media (min-width: 768px) {
		.navbar-collapse {
			padding-top: 0px !important;
			padding-right: 38px !important;
		}
		.navbar-collapse form[role="search"] {
			width: 38px;
		}
		.navbar-collapse form[role="search"] button,
		.navbar-collapse form[role="search"] input {
			padding: 15px 12px;
		}
		.navbar-collapse form[role="search"] input {
			font-size: 18pt;
			opacity: 0;
			display: none;            
            height: 50px;
		}
		.navbar-collapse form[role="search"].active {
			width: 100%;
		}
		.navbar-collapse form[role="search"].active button,
		.navbar-collapse form[role="search"].active input {
			display: table-cell;
			opacity: 1;
		}
    	.navbar-collapse form[role="search"].active input {
			width: 100%;
		}
	}

.ui-autocomplete {
            z-index:1000;
            max-height: 500px;
            overflow-y: auto;
            overflow-x: hidden;
            position: relative;
            width:500px;
        }
        * html .ui-autocomplete {
            height: 500px;
             z-index:1000;
             width:500px;
        }
        .hide {
            display: none;
        }

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
<script src="http://code.jquery.com/ui/1.11.4/jquery-ui.js"></script>
<link href="http://code.jquery.com/ui/1.11.4/themes/smoothness/jquery-ui.css" rel="stylesheet"/>
<script src="http://netdna.bootstrapcdn.com/bootstrap/3.1.1/js/bootstrap.min.js"></script>
<link href="http://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet"/>
<div class="navbar navbar-inverse navbar-fixed-top">
        <div class="container">
            <div class="navbar-header">
                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
                    <span class="icon-bar"></span>
                    <span class="icon-bar"></span>
                    <span class="icon-bar"></span>
                </button>
                <a class="navbar-brand" href="#">Example logo</a>
            </div>
            <div class="navbar-collapse collapse" id="navbar-collapse">
                <ul class="nav navbar-nav">
                    <li class="active"><a href="/">Home</a></li>
                    <li><a href="#">Link</a></li>
                    <li><a href="#">Link</a></li>
                    <li><a href="#">Link</a></li>
                    <li><a href="#">Link</a></li>
                    <li class="dropdown">
                        <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-expanded="false">Drop Down<span class="caret"></span></a>
                        <ul class="dropdown-menu" role="menu">
                            <li><a href="#">Link</a></li>
                            <li><a href="#">Link</a></li>
                            <li class="divider"></li>
                            <li><a href="#">Link</a></li>
                            <li><a href="#">Link</a></li>
                            <li><a href="#">Link</a></li>
                        </ul>
                    </li>
                    <li><a href="#">Link</a></li>
                    <li><a href="#">Link</a></li>
                    <li><a href="#">Link</a></li>
                        </ul>
                    </li>
                </ul>
                <form class="navbar-form" role="search">
                    <div class="input-group">
                        <input type="text" id="search" class="form-control" placeholder="Search">
                        <span class="input-group-btn">
                            <button type="reset" class="btn btn-default">
                                <span class="glyphicon glyphicon-remove">
                                    <span class="sr-only">Close</span>
                                </span>
                            </button>
                            <button type="submit" class="btn btn-default">
                                <span class="glyphicon glyphicon-search">
                                    <span class="sr-only">Search</span>
                                </span>
                            </button>
                        </span>
                    </div>
                </form>
            </div>
        </div>
    </div>

请帮我解决这个问题。

Answer 1

设置.ui-autocomplete的z-index为2000

JSFiddle