Unable to hide/show nav bar within index.html using ng-hide directive
Question
I am writing my first small web app, that is a CMS.
Anyway, once the user logs in, I want to be able to hide or show the nav bar in index.html by manipulating the ng-hide directive.
Here is my code so far.
index.html
<!doctype html>
<html>
<head>
<link href='http://fonts.googleapis.com/css?family=Open+Sans' rel='stylesheet' type='text/css'>
<meta charset="utf-8">
<title></title>
<meta name="description" content="">
<meta name="viewport" content="width=device-width">
<!-- Place favicon.ico and apple-touch-icon.png in the root directory -->
<!-- build:css(.) styles/vendor.css -->
<!-- bower:css -->
<link rel="stylesheet" href="bower_components/bootstrap/dist/css/bootstrap.css" />
<!-- endbower -->
<!-- endbuild -->
<!-- build:css(.tmp) styles/main.css -->
<link rel="stylesheet" href="styles/main.css">
<link rel="stylesheet" href="styles/app.css">
<!-- endbuild -->
</head>
<body ng-app="WebAppApp">
<!--[if lte IE 8]>
<p class="browsehappy">You are using an <strong>outdated</strong> browser. Please <a href="http://browsehappy.com/">upgrade your browser</a> to improve your experience.</p>
<![endif]-->
<!-- Navigation -->
<nav class="navbar navbar-inverse navbar-fixed-top" role="navigation" ng-hide="menuHide">
<div class="container">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="#">Start Bootstrap</a>
</div>
<!-- Collect the nav links, forms, and other content for toggling -->
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<ul class="nav navbar-nav">
<li>
<a href="#">About</a>
</li>
<li>
<a href="#">Services</a>
</li>
<li>
<a href="#">Contact</a>
</li>
</ul>
</div>
<!-- /.navbar-collapse -->
</div>
<!-- /.container -->
</nav>
<div ng-view=""></div>
<!-- Google Analytics: change UA-XXXXX-X to be your site's ID -->
<script>
!function(A,n,g,u,l,a,r){A.GoogleAnalyticsObject=l,A[l]=A[l]||function(){
(A[l].q=A[l].q||[]).push(arguments)},A[l].l=+new Date,a=n.createElement(g),
r=n.getElementsByTagName(g)[0],a.src=u,r.parentNode.insertBefore(a,r)
}(window,document,'script','https://www.google-analytics.com/analytics.js','ga');
ga('create', 'UA-XXXXX-X');
ga('send', 'pageview');
</script>
<!-- build:js(.) scripts/vendor.js -->
<!-- bower:js -->
<script src="bower_components/jquery/dist/jquery.js"></script>
<script src="bower_components/angular/angular.js"></script>
<script src="bower_components/bootstrap/dist/js/bootstrap.js"></script>
<script src="bower_components/angular-animate/angular-animate.js"></script>
<script src="bower_components/angular-aria/angular-aria.js"></script>
<script src="bower_components/angular-cookies/angular-cookies.js"></script>
<script src="bower_components/angular-messages/angular-messages.js"></script>
<script src="bower_components/angular-resource/angular-resource.js"></script>
<script src="bower_components/angular-route/angular-route.js"></script>
<script src="bower_components/angular-sanitize/angular-sanitize.js"></script>
<script src="bower_components/angular-touch/angular-touch.js"></script>
<!-- endbower -->
<!-- endbuild -->
<!-- build:js({.tmp,app}) scripts/scripts.js -->
<script src="scripts/app.js"></script>
<script src="scripts/controllers/login.js"></script>
<script src="scripts/controllers/signup.js"></script>
<script src="scripts/controllers/home.js"></script>
<script src="scripts/services/apiService.js"></script>
<script src="scripts/services/loggedinService.js"></script>
<!-- endbuild -->
</body>
</html>
I have defined the ng-hide directive in the nav tag within index.html
<nav class="navbar navbar-inverse navbar-fixed-top" role="navigation" ng-hide="menuShowHide">
Controller
home.js
'use strict';
app.controller('homeCtrl', function($scope, $http, $cookies, $rootScope, $location, loggedInStatus, apiServiceWeb) {
//unhide menu by accessing ng-hide variable set in index.html
$scope.menuHide = false;
});
Within a controller I now want to be able to set true or false for the navigation that way through:
$scope.menuHide = false; or
$scope.menuHide = true;
But it doesn't seem to be working. Any idea why this is happening and how I can make this work?
Thanks
2 answers
solution1
0 2015-08-17 21:46:31
Create a jsFiddle example.
Do you call a
homeCtrl?For example like this<div ng-controller="homeCtrl"> <nav class="navbar navbar-inverse navbar-fixed-top" role="navigation" ng-hide="menuHide"> </div>Create a breakpoint in your controller and check is it creating or not.
solution2
0 2015-08-18 00:08:05
It looks like you're trying to set menuShowHide , which isn't scoped to the homeCtrl from within homeCtrl . The best way to fix this is by either creating a new controller to handle the menu show hide, but if you're trying to set the visibility from other controllers you will need to use AngularJS Services/Factories .
A quick and dirty workaround would be to set menuShowHide using $rootScope instead of $scope :
app.controller('homeCtrl', function($scope, $http, $cookies, $rootScope, $location, loggedInStatus, apiServiceWeb) {
//unhide menu by accessing ng-hide variable set in index.html
$rootScope.menuShowHide = false;
});
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.