如果我有一个导航栏在引导项目
Home | About | Contact
当每个菜单项处于活动状态时,如何为它们设置活动类?也就是说,当角路由为at时,我如何设置class="active"
#/ home #/about用于about页面 #/contact为联系人页面
如果我有一个导航栏在引导项目
Home | About | Contact
当每个菜单项处于活动状态时,如何为它们设置活动类?也就是说,当角路由为at时,我如何设置class="active"
#/ home #/about用于about页面 #/contact为联系人页面
当前回答
如果你不愿意使用AngularStrap,那么这个指令可以帮到你!这是对https://stackoverflow.com/a/16231859/910764的修改。
JavaScript
angular.module('myApp').directive('bsNavbar', ['$location', function ($location) {
return {
restrict: 'A',
link: function postLink(scope, element) {
scope.$watch(function () {
return $location.path();
}, function (path) {
angular.forEach(element.children(), (function (li) {
var $li = angular.element(li),
regex = new RegExp('^' + $li.attr('data-match-route') + '$', 'i'),
isActive = regex.test(path);
$li.toggleClass('active', isActive);
}));
});
}
};
}]);
HTML
<ul class="nav navbar-nav" bs-navbar>
<li data-match-route="/home"><a href="#/home">Home</a></li>
<li data-match-route="/about"><a href="#/about">About</a></li>
</ul>
注意:上面的HTML类假设您正在使用Bootstrap 3.x
其他回答
你可以使用angular-ui-utils的ui-route指令:
<a ui-route ng-href="/">Home</a>
<a ui-route ng-href="/about">About</a>
<a ui-route ng-href="/contact">Contact</a>
or:
头控制器
/**
* Header controller
*/
angular.module('myApp')
.controller('HeaderCtrl', function ($scope) {
$scope.menuItems = [
{
name: 'Home',
url: '/',
title: 'Go to homepage.'
},
{
name: 'About',
url: '/about',
title: 'Learn about the project.'
},
{
name: 'Contact',
url: '/contact',
title: 'Contact us.'
}
];
});
索引页
<!-- index.html: -->
<div class="header" ng-controller="HeaderCtrl">
<ul class="nav navbar-nav navbar-right">
<li ui-route="{{menuItem.url}}" ng-class="{active: $uiRoute}"
ng-repeat="menuItem in menuItems">
<a ng-href="#{{menuItem.url}}" title="{{menuItem.title}}">
{{menuItem.name}}
</a>
</li>
</ul>
</div>
如果你正在使用ui-utils,你可能也会对ui-router感兴趣,用于管理部分/嵌套视图。
JavaScript
/**
* Main AngularJS Web Application
*/
var app = angular.module('yourWebApp', [
'ngRoute'
]);
/**
* Setup Main Menu
*/
app.controller('MainNavCtrl', [ '$scope', '$location', function ( $scope, $location) {
$scope.menuItems = [
{
name: 'Home',
url: '/home',
title: 'Welcome to our Website'
},
{
name: 'ABOUT',
url: '/about',
title: 'Know about our work culture'
},
{
name: 'CONTACT',
url: '/contact',
title: 'Get in touch with us'
}
];
$scope.isActive = function (viewLocation) {
return viewLocation === $location.path();
};
}]);
HTML
<div class="navbar-collapse collapse" ng-controller="MainNavCtrl">
<ul id="add-magic-line" class="nav navbar-nav navbar-right">
<li data-ng-class="{current_page_item: isActive('{{ menuItem.url }}')}" data-ng-repeat="menuItem in menuItems">
<a data-ng-href="#{{menuItem.url}}" title="{{menuItem.title}}">
{{menuItem.name}}
</a>
</li>
</ul>
</div>
如果你不愿意使用AngularStrap,那么这个指令可以帮到你!这是对https://stackoverflow.com/a/16231859/910764的修改。
JavaScript
angular.module('myApp').directive('bsNavbar', ['$location', function ($location) {
return {
restrict: 'A',
link: function postLink(scope, element) {
scope.$watch(function () {
return $location.path();
}, function (path) {
angular.forEach(element.children(), (function (li) {
var $li = angular.element(li),
regex = new RegExp('^' + $li.attr('data-match-route') + '$', 'i'),
isActive = regex.test(path);
$li.toggleClass('active', isActive);
}));
});
}
};
}]);
HTML
<ul class="nav navbar-nav" bs-navbar>
<li data-match-route="/home"><a href="#/home">Home</a></li>
<li data-match-route="/about"><a href="#/about">About</a></li>
</ul>
注意:上面的HTML类假设您正在使用Bootstrap 3.x
我使用ng-class指令和$location来实现它。
<ul class="nav">
<li data-ng-class="{active: ($location.path() == '/') }">
<a href="#/">Carpeta Amarilla</a>
</li>
<li class="dropdown" data-ng-class="{active: ($location.path() == '/auditoria' || $location.path() == '/auditoria/todos') }">
<a class="dropdown-toggle" data-toggle="dropdown" href="#">
Auditoria
<b class="caret"></b>
</a>
<ul class="dropdown-menu pull-right">
<li data-ng-class="{active: ($location.path() == '/auditoria') }">
<a href="#/auditoria">Por Legajo</a>
</li>
<li data-ng-class="{active: ($location.path() == '/auditoria/todos') }">
<a href="#/auditoria/todos">General</a>
</li>
</ul>
</li>
</ul>
它要求导航条在一个主控制器中,可以像这样访问$location服务:
bajasApp.controller('MenuCntl', ['$scope','$route', '$routeParams', '$location',
function MenuCntl($scope, $route, $routeParams, $location) {
$scope.$route = $route;
$scope.$location = $location;
$scope.$routeParams = $routeParams;
}]);
使用对象作为切换变量。 你可以很简单地用以下方法做到这一点:
<ul class="nav navbar-nav">
<li ng-class="{'active':switch.linkOne}" ng-click="switch = {linkOne: true}"><a href="/">Link One</a></li>
<li ng-class="{'active':switch.linkTwo}" ng-click="switch = {link-two: true}"><a href="/link-two">Link Two</a></li>
</ul>
每次单击链接,switch对象都会被一个新对象替换,其中只有正确的switch对象属性为true。未定义的属性将被赋值为false,因此依赖于它们的元素将不会被赋值为活动类。