我一直在研究,但似乎找不到所需的答案。
我正在使用AngularJS设计一个具有导航标题的简单页面。导航选择使用路线提供程序解决。我无法在路线提供者中为导航标题指定控制器,因为我需要为ng-view的控制器保留该控制器。我需要能够根据我在路线提供者中定义的变量“ activeTab”将其中一项的类别设置为“活动”。我的导航标题是通过自定义指令指定的。
当前,加载的第一项被赋予活动类,但是在选项卡之间切换不会更改活动选项卡(但是会更改ng-view中显示的页面)。这表明我没有正确更新控制器中的activeTab变量,但是我什至会怎么做?
这是我的代码:
index.php
<?php
include_once('/php/include/check_session.php');
?>
<!DOCTYPE html>
<html ng-app="mymapp">
<head>
<title>My App</title>
<link rel="stylesheet" type="text/css" href="css/navbar.css">
</head>
<body>
<nav-header></nav-header>
<div ng-view></div>
<script type="text/javascript" src="/libs/angular.js"></script>
<script type="text/javascript" src="/libs/angular-route.js"></script>
<script type="text/javascript" src="/libs/jquery-dev-3.2.0.js"></script>
<script type="text/javascript" src="/libs/aws-sdk.min.js"></script>
<script type="text/javascript" src="/libs/aws-cognito-sdk.min.js"></script>
<script type="text/javascript" src="/libs/amazon-cognito-identity.min.js"></script>
<script type="text/javascript" src="/js/include.js"></script>
<script type="text/javascript" src="myapp.js"></script>
<script type="text/javascript" src="myapp.core.js"></script>
<script type="text/javascript" src="myapp.routes.js"></script>
<script type="text/javascript" src="myapp.services.js"></script>
<script type="text/javascript" src="/js/controller/nav.ctrl.js"></script>
<script type="text/javascript" src="/js/directive/nav.drct.js"></script>
</body>
</html>
myapp.routes.js
/**
*
*/
angular.module('mymapp.routes', ['ngRoute'])
.config(['$routeProvider', routes]);
function routes($routeProvider){
$routeProvider.
when('/', {
templateUrl: 'html/template/home.tmpl.html',
activeTab: 'home'
})
.when('/dashboard', {
// TODO - Change route to point to check_permissions
templateUrl: 'html/template/dashboard.tmpl.html',
activeTab: 'dashboard'
})
.when('/contact', {
templateUrl: 'html/template/contact.tmpl.html',
activeTab: 'contact'
})
.when('/about', {
templateUrl: 'html/template/about.tmpl.html',
activeTab: 'about'
})
.when('/login', {
templateUrl: 'php/form_login.php',
activeTab: 'login'
})
.when('/logout', {
templateUrl: 'php/include/logout.php',
activeTab: 'login'
})
.otherwise({
redirectTo: '/'
})
}
nav.drct.js
/**
* Directive for Displaying a Navigation Header
*/
angular.module('mymapp.core').directive('navHeader', navHeaderDirective);
function navHeaderDirective(){
return {
templateUrl: 'html/template/nav.tmpl.html',
restrict: 'E',
controller: 'NavController',
controllerAs: 'navCtrl'
}
}
nav.ctrl.js
/**
* Controller for Nav Header
*/
angular.module('mymapp.core').controller('NavController', [
'$scope',
'$route',
navController
]);
function navController($scope, $route){
$scope.activeTab = $route.current.activeTab;
}
nav.tmpl.html
<div class="navbar" id="navbar">
<ul>
<li>
<a href="#/" ng-class="{ 'active': activeTab == 'home' }" >Home</a>
</li>
<li>
<a href="#/dashboard" ng-class="{ 'active': activeTab == 'dashboard' }" >Dashboard</a>
</li>
<li>
<a href="#/contact" ng-class="{ 'active': activeTab == 'contact' }" >Contact</a>
</li>
<li>
<a href="#/about" ng-class="{ 'active': activeTab == 'about' }" >About</a>
</li>
</ul>
</div>
最佳答案
可以使用routeChange事件来侦听更改:
function navController($scope, $route){
updateActiveTab();
$scope.$on('$routeChangeSuccess', updateActiveTab);
function updateActiveTab(){
$scope.activeTab = $route.current.activeTab;
}
}
当前,您只分配一个没有继承的原语,因此仅在第一次运行控制器时设置一次
或者,如果将
$route.current
对象传递给视图,则该视图将能够监视对其属性的更改,并在摘要期间进行更新:function navController($scope, $route){
$scope.current = $route.current;
}
视图
<a href="#/" ng-class="{ 'active': current.activeTab == 'home' }" >Home</a>