如果我在bootstrap中有一个导航栏,其中包含以下项目
Home | About | Contact
当每个菜单项处于活动状态时,如何为其设置活动类?也就是说,当角度路径位于时,如何设置class="active"
用于home
#/about
的#/
,用于联系页面的关于page
#/contact
发布于 2013-09-02 03:59:38
一种非常优雅的方式是使用ng-controller在ng-view之外运行单个控制器:
<div class="collapse navbar-collapse" ng-controller="HeaderController">
<ul class="nav navbar-nav">
<li ng-class="{ active: isActive('/')}"><a href="/">Home</a></li>
<li ng-class="{ active: isActive('/dogs')}"><a href="/dogs">Dogs</a></li>
<li ng-class="{ active: isActive('/cats')}"><a href="/cats">Cats</a></li>
</ul>
</div>
<div ng-view></div>
并包含在controllers.js中:
function HeaderController($scope, $location)
{
$scope.isActive = function (viewLocation) {
return viewLocation === $location.path();
};
}
发布于 2014-04-04 14:08:16
我刚刚编写了一个指令来处理这个问题,所以您可以简单地将属性bs-active-link
添加到父<ul>
元素中,只要路由发生更改,它就会找到匹配的链接,并将active
类添加到相应的<li>
中。
你可以在这里看到它的实际效果:http://jsfiddle.net/8mcedv3b/
示例HTML:
<ul class="nav navbar-nav" bs-active-link>
<li><a href="/home">Home</a></li>
<li><a href="/contact">Contact</a></li>
</ul>
Javascript:
angular.module('appName')
.directive('bsActiveLink', ['$location', function ($location) {
return {
restrict: 'A', //use as attribute
replace: false,
link: function (scope, elem) {
//after the route has changed
scope.$on("$routeChangeSuccess", function () {
var hrefs = ['/#' + $location.path(),
'#' + $location.path(), //html5: false
$location.path()]; //html5: true
angular.forEach(elem.find('a'), function (a) {
a = angular.element(a);
if (-1 !== hrefs.indexOf(a.attr('href'))) {
a.parent().addClass('active');
} else {
a.parent().removeClass('active');
};
});
});
}
}
}]);
发布于 2013-04-26 16:24:17
你可以看看AngularStrap,导航栏指令似乎就是你要找的:
https://github.com/mgcrea/angular-strap/blob/master/src/navbar/navbar.js
.directive('bsNavbar', function($location) {
'use strict';
return {
restrict: 'A',
link: function postLink(scope, element, attrs, controller) {
// Watch for the $location
scope.$watch(function() {
return $location.path();
}, function(newValue, oldValue) {
$('li[data-match-route]', element).each(function(k, li) {
var $li = angular.element(li),
// data('match-rout') does not work with dynamic attributes
pattern = $li.attr('data-match-route'),
regexp = new RegExp('^' + pattern + '$', ['i']);
if(regexp.test(newValue)) {
$li.addClass('active');
} else {
$li.removeClass('active');
}
});
});
}
};
});
要使用此指令:
<script src="lib/angular-strap.js"></script>
angular.module('myApp', ['$strap.directives'])
<div class="navbar" bs-navbar>
<li data-match-route="/about"><a href="#/about">About</a></li>
https://stackoverflow.com/questions/16199418
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