[AngularJS] ui-router: named views

The ui-router library for AngularJS provides the ability to name views within your application. This is useful for dividing up your application into sections, and changing the content of a section based on the current state.

We use named view to build a simple webpage with 'header','sidebar','content' and 'footer'.

/**
 * Created by Answer1215 on 12/17/2014.
 */
angular.module('app', ['ui.router'])
    .config(function($stateProvider, $urlRouterProvider) {
        $stateProvider
            .state('app', {
                url: '/',
                views: {
                    'header': {
                        templateUrl: 'app/common/header.tpl.html'
                    },
                    'sidebar': {
                        templateUrl: 'app/common/sidebar.tpl.html'
                    },
                    'content': {
                        templateUrl: 'app/common/content.tpl.html'
                    },
                    'footer': {
                        templateUrl: 'app/common/footer.tpl.html'
                    }
                }
            });
        $urlRouterProvider.otherwise('/');
    });

<div class="container">

    <!-- Header -->
    <div ui-view="header" class="row"></div>

    <div class="row">
        <!-- Sidebar/Nav -->
        <div ui-view="sidebar" class="col-xs-3"></div>
        <!-- Content -->
        <div ui-view="content" class="col-xs-9"></div>
    </div>

    <!-- Footer -->
    <div ui-view="footer" class="row"></div>
</div>

Result: 

Now when we click 'One', 'Two' and 'Three', we also want to replace the content accordingly.

alt-one.js:

/**
 * Created by Answer1215 on 12/17/2014.
 */
angular.module('app.alt-one', ['ui.router'])
    .config(function($stateProvider, $urlRouterProvider) {
        $stateProvider
            .state('app.alt-one', {
                url: 'alt-one',
                views: {
                    // '@': replace the content
                    // if there is just @ without other stuff, it will looking for the parent 'app' root
                    'content@': {
                        templateUrl: 'app/alt-one/alt-one.content.tpl.html'
                    }
                }
            })
    })    

alt-two.js: we replace the content and header both at the same time.

/**
 * Created by Answer1215 on 12/17/2014.
 */
angular.module('app.alt-two', ['ui.router'])
    .config(function($stateProvider, $urlRouterProvider) {
                $stateProvider
                    .state('app.alt-two', {
                        url: 'alt-two',
                        views: {
                            'content@': {
                                templateUrl: 'app/alt-two/alt-two.content.tpl.html'
                            },
                            'header@': {
                                templateUrl: 'app/alt-two/alt-two.header.tpl.html'
                            }
                        }
                    })
            })

alt-three.js:

/**
 * Created by Answer1215 on 12/17/2014.
 */
angular.module('app.alt-three', [
    'ui.router'
])
    .config(function($stateProvider) {
        $stateProvider
            .state('app.alt-three', {
                url: 'alt-three',
                views: {
                    'content@': {
                        templateUrl: 'app/alt-three/alt-three.content.tpl.html'
                    },
                    'header@': {
                        templateUrl: 'app/alt-three/alt-three.header.tpl.html'
                    },
                    // find the 'alt-three' directory to replace the name view == "one"
                    'one@app.alt-three': {
                        template: '<div class="alert-info">Sub One</div>'
                    },
                    // find the 'alt-three' directory to replace the name view == "two"
                    'two@app.alt-three': {
                        template: '<div class="alert-success">Sub Two</div>'
                    }
                }
            }
        )
    })
;

Read More: https://egghead.io/lessons/angularjs-ui-router-named-views