angular.uirouter

首先给大家介绍angular-ui-router的基本用法。
如何引用依赖angular-ui-router

angular.module('app',["ui.router"])
.config(function($stateProvider){
$stateProvider.state(stateName, stateCofig);
})

$stateProvider.state(stateName, stateConfig)
stateName是string类型
stateConfig是object类型
//statConfig可以为空对象
$stateProvider.state("home",{});
//state可以有子父级
$stateProvider.state("home",{});
$stateProvider.state("home.child",{})
//state可以是链式的
$stateProvider.state("home",{}).state("about",{}).state("photos",{});
stateConfig包含的字段：template, templateUrl, templateProvider, controller, controllerProvider, resolve, url, params, views, abstract, onEnter, onExit, reloadOnSearch, data
$urlRouteProvider
$urlRouteProvider.when(whenPath, toPath)
$urlRouterProvider.otherwise(path)
$urlRouteProvider.rule(handler)
$state.go
$state.go(to, [,toParams],[,options])
形参to是string类型，必须，使用"^"或"."表示相对路径；
形参toParams可空，类型是对象；
形参options可空，类型是对象，字段包括：location为bool类型默认true,inherit为bool类型默认true, relative为对象默认$state.$current,notify为bool类型默认为true, reload为bool类型默认为false
$state.go('photos.detail')
$state.go('^')到上一级,比如从photo.detail到photo
$state.go('^.list')到相邻state,比如从photo.detail到photo.list
$state.go('^.detail.comment')到孙子级state，比如从photo.detail到photo.detial.comment
ui-sref
ui-sref='stateName'
ui-sref='stateName({param:value, param:value})'
ui-view
==没有名称的ui-view

<div ui-view></div>
$stateProvider.state("home",{
template: "<h1>hi</h1>"
})
或者这样配置：

$stateProvider.state("home"{
views: {
"": {
template: "<h1>hi</h1>"
}
}
})
==有名称的ui-view

<div ui-view="main"></div>
$stateProvider.state("home",{
views: {
"main" : {
template: "<h1>hi</h1>"
}
}
})
==多个ui-view

<div ui-view></div>
<div ui-view="data"></div>
$stateProvider.state("home",{
views: {
"":{template: "<h1>hi</h1>"},
"data": {template: "<div>data</div>"}
}
})
项目文件结构
node_modules/
partials/
.....about.html
.....home.html
.....photos.html
app.js
index.html
创建state和view
app.js

var photoGallery = angular.module('photoGallery',["ui.router"]);
photoGallery.config(function($stateProvider, $urlRouterProvider){
$urlRouterProvider.otherwise('/home');
$stateProvider
.state('home',{
url: '/home',
templateUrl: 'partials/home.html'
})
.state('photos',{
url: '/photos',
templateUrl: 'partials/photos.html'
})
.state('about',{
url: '/about',
templateUrl: 'partials/about.html'
})
})
index.html

<!DOCTYPE html>
<html lang="en" ng-app="photoGallery">
<head>
<meta charset="UTF-8">
<title></title>
<link rel="stylesheet" href="node_modules/bootstrap/dist/css/bootstrap.css"/>
</head>
<body>
<h1>Welcome</h1>
<div ui-view></div>
<script src="node_modules/jquery/dist/jquery.js"></script>
<script src="node_modules/angular/angular.js"></script>
<script src="node_modules/angular-ui-router/release/angular-ui-router.js"></script>
<script src="node_modules/angular-animate/angular-animate.js"></script>
<script src="node_modules/bootstrap/dist/js/bootstrap.js"></script>
<script src="node_modules/angular-bootstrap/ui-bootstrap-tpls.js"></script>
<script src="app.js"></script>
</body>
</html>
state之间的跳转
index.html

<nav class="navbar navbar-inverse">
<div class="container-fluid">
<div class="navbar-header">
<button class="navbar-toggle collapsed" type="button" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a ui-sref="home" class="navbar-brand">Home</a>
</div>
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<ul class="nav navbar-nav">
<li>
<a ui-sref="photos">Photos</a>
</li>
<li>
<a ui-sref="about">About</a>
</li>
</ul>
</div>
</div>
</nav>
<div ui-view></div>
以上通过ui-sref属性完成state之间的跳转。
多个view以及state嵌套
有时候，一个页面上可能有多个ui-view，比如：

<div ui-view="header"></div>
<div ui-view="body"></div>
假设，以上页面属于一个名称为parent的state中。
我们知道在ui-router中，一个state大致是这样设置的：

<div ui-view="header"></div>
<div ui-view="body"></div>
所有state下views下的所有键值对(类似 "body@content":{templateUrl: 'partials/photos.html'})都被放到一个键值集合中。而ui-view的工作原理就是根据自己的属性值，到这个键值集合中去找匹配的键，找到就把对应的页面显示出来。
点击header对应的页面链接，可能会跳转到另外的子页面出现在<div ui-view="body"></div>这个位置。这时候页面出现了子父关系，而每个页面都属于某个state,这样state间就出现了子父关系。这些跳转的子页面，在路由设置中，可能被称为parent.son1, parent.son2...这就是state的嵌套。
在现有的文件结构上增加content.html, header.html,文件结构变为：
node_modules/
partials/
.....about.html
.....home.html
.....photos.html
.....content.html
.....header.html
app.js
index.html
content.html 包含了多各ui-view, 一个ui-view和页头相关，保持不变；令一个ui-view和会根据页头上的点击呈现不同的内容

<div ui-view="header"></div>
<div ui-view="body"></div>
header.html 把原先indext.html中nav部分放到这里来

.state('content.home',{
url: 'home',
views:{
"body@content":{templateUrl: 'partials/home.html'}
}
})
以上，告诉我们partials/home.html将会被加载到与"body@content"匹配的ui-view中。暂时对应的ui-view还没有出现，于是等待。
→ 路由看到index.html上的<div ui-view></div>

.state('content',{
url: '/',
views:{
"":{templateUrl: 'partials/content.html'},
"header@content":{templateUrl: 'partials/header.html'},
}
})
于是，就找到了content这个state下views下的 "":{templateUrl: 'partials/content.html'}这个键值对，把partials/content.html显示出来。
→ 分别加载partials/content.html页面上的各个部分
看到<div ui-view="header"></div>，就加载如下：
"header@content":{templateUrl: 'partials/header.html'},
看到<div ui-view="body"></div>，先加载 "body@content":{templateUrl: 'partials/home.html'}
→ 点击header上的链接
点击<a ui-sref="content.photos">Photos</a>，来到：

.state('content.photos',{
url: 'photos',
views:{
"body@content":{templateUrl: 'partials/photos.html'}
}
})
把partials/photos.html显示到<div ui-view="body"></div>中去。
点击<div ui-view="body"></div>，来到：

.state('content.about',{
url:'about',
views:{
"body@content":{templateUrl: 'partials/about.html'}
}
})

把partials/about.html显示到<div ui-view="body"></div>中去。
state多级嵌套
以上，在路由设置中，state名称有content, content.photos有了这样的一层嵌套。接下来，要实现state的多级嵌套。
在photos.html页面准备加载一个子页面，叫做photos-list.html；
与photo-list.html页面相邻的还有一个页面，叫做photo-detail.html；
在photo-detail.html页面上加载一个子页面，叫做photos-detail-comment.html;
这样，页面有了嵌套关系，state也相应的会有嵌套关系。
现在，文件结构变成：
node_modules/
partials/
.....about.html
.....home.html
.....photos.html
.....content.html
.....header.html
.....photos-list.html
.....photo-detail.html
.....photos-detail-comment.html
app.js
index.html
photos.html 加一个容纳子页面的ui-view
photos
<div ui-view></div>
如何到达这个子页面呢？修改header中的相关部分如下：

<nav class="navbar navbar-inverse">
<div class="container-fluid">
<div class="navbar-header">
<button class="navbar-toggle collapsed" type="button" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a ui-sref="content.home" class="navbar-brand">Home</a>
</div>
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<ul class="nav navbar-nav">
<li>
<a ui-sref="content.photos.list">Photos</a>
</li>
<li>
<a ui-sref="content.about">About</a>
</li>
</ul>
</div>
</div>
以上，通过<a ui-sref="content.photos.list">Photos</a>来到photos.html的子页面photos-list.html.
photos-list.html 通过2种途径到相邻页photo-detail.html

<h1>photos-list</h1>
<ul>
<li><a ui-sref="^.detail">我通过相对路径到相邻的state</a></li>
<li><a ui-sref="content.photos.detail">我通过绝对路径到相邻的state</a></li>
</ul>
photo-detail.html 又提供了来到其子页面photos-detail-comment.html的ui-view

<h1>photo-details</h1>
<a class="btn btn-default" ui-sref=".comment">通过相对路径去子state</a>
<div ui-view></div>
photos-detail-comment.html 则很简单：
<h1>photos-detail-comment</h1>
app.js state多级嵌套的设置为

.state('content',{
url: '/',
abstract: true,
views:{
"":{templateUrl: 'partials/content.html'},
"header@content":{templateUrl: 'partials/header.html'},
}
})
...
.state('content.photos',{
url: 'photos',
abstract: true,
views:{
"body@content":{templateUrl: 'partials/photos.html'}
}
})
那么，当一个state设置为抽象，如果通过ui-sref或路由导航到该state会出现什么结果呢？
--会导航到默认路由上
$urlRouterProvider.otherwise('home');
即

.state('content.home',{
url: 'home',
views:{
"body@content":{templateUrl: 'partials/home.html'}
}
})
最终把partials/home.html显示出来。
使用控制器
在实际项目中，数据大多从controller中来。
首先在路由中设置state所用到的控制器以及控制器别名。

var photoGallery = angular.module('photoGallery',["ui.router"]);
photoGallery.config(function($stateProvider, $urlRouterProvider){
$urlRouterProvider.otherwise('home');
$stateProvider
.state('content',{
url: '/',
abstract: true,
views:{
"":{templateUrl: 'partials/content.html'},
"header@content":{templateUrl: 'partials/header.html'},
}
})
.state('content.home',{
url: 'home',
views:{
"body@content":{
templateUrl: 'partials/home.html',
controller: 'HomeController',
controllerAs: 'ctrHome'
}
}
})
.state('content.photos',{
url: 'photos',
abstract: true,
views:{
"body@content":{
templateUrl: 'partials/photos.html',
controller: 'PhotoController',
controllerAs: 'ctrPhoto'
}
}
})
.state('content.photos.list',{
url: '/list',
templateUrl: 'partials/photos-list.html',
controller: "PhotoListController",
controllerAs: 'ctrPhotoList'
})
.state('content.photos.detail',{
url: '/detail',
templateUrl: 'partials/photos-detail.html',
controller: 'PhotoDetailController',
controllerAs: 'ctrPhotoDetail'
})
.state('content.photos.detail.comment',{
url: '/comment',
templateUrl: 'partials/photos-detail-comment.html'
})
.state('content.about',{
url:'about',
views:{
"body@content":{templateUrl: 'partials/about.html'}
}
})
})
添加controller.js,该文件用来定义所用到的controller.现在的文件结构为：
asserts/
.....css/
.....images/
..........image1.jpg
..........image2.jpg
..........image3.jpg
..........image4.jpg
node_modules/
partials/
.....about.html
.....home.html
.....photos.html
.....content.html
.....header.html
.....photos-list.html
.....photo-detail.html
.....photos-detail-comment.html
app.js
index.html
controllers.js

<h1>photos-list</h1>
<div ng-init="ctrPhotoList.init()">
<div style="margin:auto; width: 40px;" ng-if="ctrPhotoList.reading">
<i class="fa fa-spinner fa-5x fa-pulse"></i>
</div>
<div class="well well-sm" ng-repeat="photo in ctrPhotoList.photos">
<div class="media">
<div class="media-left" style="width:15%;">
<a ui-sref="content.photos.detail">
<img class="img-responsive img-rounded" src="../asserts/images/{{photo.imageName}}" alt="">
</a>
</div>
<div class="media-body">
<h4 class="media-heading">{{photo.title}}</h4>
{{photo.description}}
</div>
</div>
</div>
</div>
state间如何传路由参数
在content.photos.detail这个state设置接收一个路由参数。

.state('content.photos.detail',{
url: '/detail/:id',
templateUrl: 'partials/photos-detail.html',
controller: 'PhotoDetailController',
controllerAs: 'ctrPhotoDetail'
})
photos-list.html 送出一个路由参数
<h1>photos-list</h1>
<div ng-init="ctrPhotoList.init()">
<div style="margin:auto; width: 40px;" ng-if="ctrPhotoList.reading">
<i class="fa fa-spinner fa-5x fa-pulse"></i>
</div>
<div class="well well-sm" ng-repeat="photo in ctrPhotoList.photos">
<div class="media">
<div class="media-left" style="width:15%;">
<a ui-sref="content.photos.detail({id:photo.id})">
<img class="img-responsive img-rounded" src="../asserts/images/{{photo.imageName}}" alt="">
</a>
</div>
<div class="media-body">
<h4 class="media-heading">{{photo.title}}</h4>
{{photo.description}}
</div>
</div>
</div>
</div>
以上，通过<a ui-sref="content.photos.detail({id:photo.id})">把路由参数送出。
controller.js PhotoDetailController控制器通过$stateParams获取路由参数

//别名：ctrPhotoDetail
photosGallery.controller('PhotoDetailController', ['$scope', '$state', '$stateParams',
function($scope, $state, $stateParams){
var id = null;
this.photo = null;
this.init = function(){
id = parseInt($stateParams.id);
this.photo = $scope.ctrPhoto.photos[id];
}
}
]);
photos-detail.html 从以上的PhotoDetailController中获取数据。

<h1>photo-details</h1>
<a class="btn btn-default" ui-sref=".comment">通过相对路径去子state</a>
<a ui-sref="content.photos.list" style="margin-left: 15px;">
<i class="fa fa-arrow-circle-left fa-2x"></i>
</a>
<div ng-init="ctrPhotoDetail.init()">
<img class="img-responsive img-rounded" ng-src="../assets/images/{{ctrPhotoDetail.photo.imageName}}"
style="margin:auto; width: 60%;">
<div class="well well-sm" style="margin:auto; width: 60%; margin-top: 15px;">
<h4>{{ctrPhotoDetail.photo.title}}</h4>
<p>{{ctrPhotoDetail.photo.description}}</p>
</div>
<div style="margin:auto; width: 80%; margin-bottom: 15px;">
<button style="margin-top: 10px; width:100%;"
class="btn btn-default" ui-sref=".comment">Comments</button>
</div>
</div>
<div ui-view></div>
state间如何传字符串参数
在路由中这样设置：

photoGallery.controller('HomeController',['$scope', '$state', function($scope, $state){
this.message = 'Welcome to the Photo Gallery';
}]);
//别名：ctrPhoto
photoGallery.controller('PhotoController',['$scope','$state', function($scope, $state){
this.photos = [
{ id: 0, title: 'Photo 1', description: 'description for photo 1', imageName: 'image1.JPG', comments:[
{ name:'User1', comment: 'Nice', imageName: 'man.png'},
{ name:'User2', comment:'Very good', imageName: 'man.png'},
{ name:'User3', comment:'Nice', imageName: 'woman.png'},
{ name:'User4', comment:'Very good', imageName: 'woman.png'},
{ name:'User5', comment:'Very good', imageName: 'man.png'},
{ name:'User6', comment:'Nice', imageName: 'woman.png'},
{ name:'User7', comment:'So so', imageName: 'man.png'}
]},
{ id: 1, title: 'Photo 2', description: 'description for photo 2', imageName: 'image2.JPG', comments:[
{ name:'User1', comment: 'Nice', imageName: 'man.png'},
{ name:'User2', comment:'Very good', imageName: 'man.png'},
{ name:'User3', comment:'Nice', imageName: 'woman.png'},
{ name:'User4', comment:'Very good', imageName: 'woman.png'}
]},
{ id: 2, title: 'Photo 3', description: 'description for photo 3', imageName: 'image3.JPG', comments:[
{ name:'User1', comment: 'Nice', imageName: 'man.png'},
{ name:'User2', comment:'Very good', imageName: 'man.png'},
{ name:'User3', comment:'Nice', imageName: 'woman.png'},
{ name:'User4', comment:'Very good', imageName: 'woman.png'},
{ name:'User5', comment:'Very good', imageName: 'man.png'},
{ name:'User6', comment:'Nice', imageName: 'woman.png'},
{ name:'User7', comment:'So so', imageName: 'man.png'}
]},
{ id: 3, title: 'Photo 4', description: 'description for photo 4', imageName: 'image4.JPG', comments:[
{ name:'User6', comment:'Nice', imageName: 'woman.png'},
{ name:'User7', comment:'So so', imageName: 'man.png'}
]}
];
//给子state下controller中的photos赋值
this.pullData = function(){
$scope.$$childTail.ctrPhotoList.photos = this.photos;
}
}]);
//别名：ctrPhotoList
photoGallery.controller('PhotoListController',['$scope','$state', function($scope, $state){
this.reading = false;
this.photos = new Array();
this.init = function(){
this.reading = true;
setTimeout(function(){
$scope.$apply(function(){
$scope.ctrPhotoList.getData();
});
}, 1500);
}
this.getData = function(){
//调用父state中controller中的方法
$scope.$parent.ctrPhoto.pullData();
/*this.photos = $scope.$parent.ctrPhoto.photos;*/
this.reading = false;
}
}]);
//别名：ctrPhotoDetail
photoGallery.controller('PhotoDetailController', ['$scope', '$state', '$stateParams',
function($scope, $state, $stateParams){
var id = null;
this.photo = null;
this.init = function(){
id = parseInt($stateParams.id);
this.photo = $scope.ctrPhoto.photos[id];
}
}
]);
photoGallery.controller('PhotoCommentController', ['$scope', '$state', '$stateParams',
function($scope, $state, $stateParams){
var id, skip, limit = null;
this.comments = new Array();
this.init = function(){
id = parseInt($stateParams.id);
var photo = $scope.ctrPhoto.photos[id];
if($stateParams.skip){
skip = parseInt($stateParams.skip);
}else{
skip = 0;
}
if($stateParams.limit){
limit = parseInt($stateParams.limit);
}else{
limit = photo.comments.length;
}
this.comments = photo.comments.slice(skip, limit);
}
}
]);
也就是，$stateParams不仅可以接收路由参数，还可以接收查询字符串参数。
photo-detail.html 需要把查询字符串参数传递出去

<h1>photo-details</h1>
<a class="btn btn-default" ui-sref=".comment">通过相对路径去子state</a>
<a ui-sref="content.photos.list" style="margin-left: 15px;">
<i class="fa fa-arrow-circle-left fa-2x"></i>
</a>
<div ng-init="ctrPhotoDetail.init()">
<img class="img-responsive img-rounded" ng-src="../assets/images/{{ctrPhotoDetail.photo.imageName}}"
style="margin:auto; width: 60%;">
<div class="well well-sm" style="margin:auto; width: 60%; margin-top: 15px;">
<h4>{{ctrPhotoDetail.photo.title}}</h4>
<p>{{ctrPhotoDetail.photo.description}}</p>
</div>
<div style="margin:auto; width: 80%; margin-bottom: 15px;">
<button style="margin-top: 10px; width:100%;"
class="btn btn-default" ui-sref=".comment({skip:0, limit:2})">Comments</button>
</div>
</div>
<div ui-view></div>
以上，通过ui-sref=".comment({skip:0, limit:2})把查询字符串传递出去。
photos-detail-comment.html

<h1>photos-detail-comment</h1>
<div ng-init="ctrPhotoComment.init()" style="margin-top:15px;">
<div ng-repeat="comment in ctrPhotoComment.comments" class="well well-sm" style="margin: auto; width: 60%;">
<div class="media">
<div class="media-left media-middle">
<a href="">
<img class="img-circle" style="width:60px;" src="../assets/images/{{comment.imageName}}" alt="">
</a>
</div>
<div class="media-body">
<h4 class="media-heading">{{comment.name}}</h4>
{{comment.comment}}
</div>
</div>
</div>
</div>
state间如何传递对象
通过data属性，把一个对象赋值给它。

.state('content',{
url: '/',
abstract: true,
data:{
user: "user",
password: "1234"
},
views:{
"":{templateUrl: 'partials/content.html'},
"header@content":{templateUrl: 'partials/header.html'},
}
})
给header.html加上一个对应的控制器，并提供注销方法。

$stateProvider
.state('content',{
url: '/',
abstract: true,
data:{
user: "user",
password: "1234"
},
views:{
"":{templateUrl: 'partials/content.html'},
"header@content":{
templateUrl: 'partials/header.html',
controller: function($scope, $rootScope, $state){
$scope.logoff = function(){
$rootScope.user = null;
}
}
}
}
})
添加一个有关登录页的state

.state('content.login',{
url:'login',
data:{
loginError: 'User or password incorrect.'
},
views:{
"body@content" :{
templateUrl: 'partials/login.html',
controller: function($scope, $rootScope, $state){
$scope.login = function(user, password, valid){
if(!valid){
return;
}
if($state.current.data.user === user && $state.current.data.password === password){
$rootScope.user = {
name: $state.current.data.user
}
// Or Inherited
/*$rootScope.user = {
name: $state.$current.parent.data.user
};*/
$state.go('content.home');
}else{
$scope.message = $state.current.data.loginError;
}
}
}
}
}
})
添加login.html文件，现在的文件结构为：
asserts/
.....css/
.....images/
..........image1.jpg
..........image2.jpg
..........image3.jpg
..........image4.jpg
node_modules/
partials/
.....about.html
.....home.html
.....photos.html
.....content.html
.....header.html
.....photos-list.html
.....photo-detail.html
.....photos-detail-comment.html
.....login.html
app.js
index.html
login.html

<form name="form" ng-submit="login(user, password, form.$valid)">
<div class="panel panel-primary" style="width:360px; margin: auto;">
<div class="panel-heading">
<h3 class="panel-title">Indentification</h3>
</div>
<div class="panel-body">
<input name="user" type="text" class="form-control" ng-model="user" placeholder="User ..." required>
<span ng-show="form.user.$error.required && form.user.$dirty" class="label label-danger">Enter the user</span>
<hr>
<input name="password" type="password" class="form-control" ng-model="password" placeholder="Password ..." required>
<span ng-show="form.password.$error.required && form.password.$dirty" class="label label-danger">Enter the password</span>
</div>
<div class="panel-footer">
<button class="btn btn-default" type="submit">Login</button>
<button class="btn btn-default" type="reset">Reset</button>
<span class="label label-danger">{{message}}</span>
</div>
</div>
</form>
header.html 修改如下

<nav class="navbar navbar-inverse">
<div class="container-fluid">
<div class="navbar-header">
<button class="navbar-toggle collapsed" type="button" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" ui-sref="content.home">Home</a>
</div>
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<ul class="nav navbar-nav">
<li>
<a ui-sref="content.photos.list">Photos</a>
</li>
<li>
<a ui-sref="content.about">About</a>
</li>
</ul>
<ul class="nav navbar-nav navbar-right">
<li ng-if="user.name" class="dropdown">
<a class="dropdown-toggle" role="button" aria-expanded="false" href="#" data-toggle="dropdown">{{user.name}} <span class="caret"></span></a>
<ul class="dropdown-menu" role="menu">
<li><a ui-sref="content.home" ng-click="logoff()">Sing out</a></li>
</ul>
</li>
<li ng-if="!user.name">
<a ui-sref="content.login">Sing In</a>
</li>
</ul>
</div>
</div>
</nav>
onEnter和onExit事件

.state('content.photos.detail',{
url: '/detail/:id',
templateUrl: 'partials/photos-detail.html',
controller: 'PhotoDetailController',
controllerAs: 'ctrPhotoDetail',
resolve:{
viewing: function($stateParams){
return{
photoId: $stateParams.id
}
}
},
onEnter: function(viewing){
var photo = JSON.parse(sessionStorage.getItem(viewing.photoId));
if(!photo){
photo = {
views: 1,
viewing: 1
}
}else{
photo.views = photo.views + 1;
photo.viewing = photo.viewing + 1;
}
sessionStorage.setItem(viewing.photoId, JSON.stringify(photo));
},
onExit: function(viewing){
var photo = JSON.parse(sessionStorage.getItem(viewing.photoId));
photo.viewing = photo.viewing - 1;
sessionStorage.setItem(viewing.photoId, JSON.stringify(photo));
}
})
在PhotoDetailController中：

photoGallery.controller('PhotoDetailController', ['$scope', '$state', '$stateParams',
function($scope, $state, $stateParams){
var id = null;
this.photo = null;
this.viewObj = null;
this.init = function(){
id = parseInt($stateParams.id);
this.photo = $scope.ctrPhoto.photos[id];
this.viewObj = JSON.parse(sessionStorage.getItem($stateParams.id));
}
}
]);
photos-detail.html

<h1>photo-details</h1>
<a class="btn btn-default" ui-sref=".comment">通过相对路径去子state</a>
<a ui-sref="content.photos.list" style="margin-left: 15px;">
<i class="fa fa-arrow-circle-left fa-2x"></i>
</a>
<div ng-init="ctrPhotoDetail.init()">
<img class="img-responsive img-rounded" ng-src="../assets/images/{{ctrPhotoDetail.photo.imageName}}"
style="margin:auto; width: 60%;">
<div class="well well-sm" style="margin:auto; width: 60%; margin-top: 15px;">
<div class="well well-sm pull-right" style="width: 100px;">
<i>Views <span class="badge">{{ctrPhotoDetail.viewObj.views}}</span></i>
</div>
<div class="well well-sm pull-right" style="width: 110px;">
<i>Viewing <span class="badge">{{ctrPhotoDetail.viewObj.viewing}}</span></i>
</div>
<h4>{{ctrPhotoDetail.photo.title}}</h4>
<p>{{ctrPhotoDetail.photo.description}}</p>
</div>
<div style="margin:auto; width: 80%; margin-bottom: 15px;">
<button style="margin-top: 10px; width:100%;"
class="btn btn-default" ui-sref=".comment({skip:0, limit:2})">Comments</button>
</div>
</div>
<div ui-view></div>
StateChangeStart事件
controller.js 增加如下

photoGallery.controller('RootController', ['$scope', '$state', '$rootScope',
function($scope, $state, $rootScope){
$rootScope.$on('$stateChangeStart',
function(event, toState, toParams, fromState, fromParams){
if(toState.data.required && !$rootScope.user){
event.preventDefault();
$state.go('content.login');
}
});
}
]);
修改content这个state:

.state('content',{
url:'/',
abstract: true,
data:{
user: "user",
password: "1234"
},
views:{
"":{
templateUrl: 'partials/content.html',
controller: 'RootController'
},
"header@content":{
templateUrl: 'partials/header.html',
controller: function($scope, $rootScope, $state){
$scope.logoff = function(){
$rootScope.user = null;
}
}
}
}
})
content.photos.detail这个state
.state('content.photos.detail',{
url:'/detail/:id',
templateUrl: 'partials/photos-detail.html',
controller: 'PhotoDetailController',
controllerAs: 'ctrPhotoDetail',
data:{
required: true
},
resolve:{
viewing: function($stateParams){
return{
photoId: $stateParams.id
}
}
},
onEnter: function(viewing){
var photo = JSON.parse(sessionStorage.getItem(viewing.photoId));
if(!photo){
photo = {
views: 1,
viewing: 1
}
}else{
photo.views = photo.views + 1;
photo.viewing = photo.viewing + 1;
}
sessionStorage.setItem(viewing.photoId, JSON.stringify(photo));
},
onExit: function(viewing){
var photo = JSON.parse(sessionStorage.getItem(viewing.photoId));
photo.viewing = photo.viewing - 1;
sessionStorage.setItem(viewing.photoId, JSON.stringify(photo));
}
})
以上，添加了

data:{
required: true
}
同理，content.photos.detail.comment这个state

.state('content.photos.detail.comment',{
url:'/comment?skip&limit',
templateUrl: 'partials/photos-detail-comment.html',
controller: 'PhotoCommentController',
controllerAs: 'ctrPhotoComment',
data:{
required: true
}
})
StateNotFound事件
photosGallery.controller('RootController', ['$scope', '$state', '$rootScope',
function($scope, $state, $rootScope){
$rootScope.$on('$stateChangeStart',
function(event, toState, toParams, fromState, fromParams){
if(toState.data.required && !$rootScope.user){
event.preventDefault();
$state.go('content.login');
return;
}
});
$rootScope.$on('$stateNotFound',
function(event, unfoundState, fromState, fromParams){
event.preventDefault();
$state.go('content.notfound');
});
}
]);

添加一个state:

.state('content.notfound',{
url:'notfound',
views: {
"body@content": {templateUrl: 'partials/page-not-found.html'}
}
})
page-not-found.html

<div class="well well-sm" style="margin: 20px;">
<i class="fa fa-frown-o fa-4x pull-left"></i><h3>404 - Sorry! Not found your page.</h3>
</div>
StateChangeSuccess事件

photosGallery.controller('RootController', ['$scope', '$state', '$rootScope',
function($scope, $state, $rootScope){
$rootScope.accessLog = new Array();
$rootScope.$on('$stateChangeStart',
function(event, toState, toParams, fromState, fromParams){
if(toState.data.required && !$rootScope.user){
event.preventDefault();
$state.go('content.login');
return;
}
});
$rootScope.$on('$stateNotFound',
function(event, unfoundState, fromState, fromParams){
event.preventDefault();
$state.go('content.notfound');
});
$rootScope.$on('$stateChangeSuccess',
function(event, toState, toParams, fromState, fromParams){
$rootScope.accessLog.push({
user: $rootScope.user,
from: fromState.name,
to: toState.name,
date: new Date()
});
});
}
]);
添加一个state

.state('content.log',{
url:'log',
data:{
required: true
},
views: {
"body@content": {templateUrl: 'partials/log.html'}
}
})
log.html

<h1><i class="fa fa-file-text-o"></i> Access Log</h1>
<div style="margin:auto; width: 380px;">
<div class="well well-sm" ng-repeat="log in accessLog track by $index">
<i class="fa fa-pencil fa-2x pull-left"></i>
{{log.user ? log.user.name: 'anonymous'}} in {{log.date | date: 'longDate'}} at {{log.date | date: 'shortTime'}}
<p>From: {{log.from}} => to: {{log.to}}</p>
</div>
</div>
StateChangeError事件

.state('content.profile', {
url:'profile',
data:{
required: true
},
resolve:{
showError: function(){
throw 'Error in code.';
}
},
views:{
"body@content": {template: '<div>Error</div>'}
}
})
.state('content.error',{
url:'error/:error',
views:{
"body@content":{
templateUrl: 'partials/error.html',
controller: function($scope, $stateParams){
$scope.error = {
message: $stateParams.error
}
}
}
}
})
error.html

<div class="well well-sm" style="margin: 20px;">
<i class="fa fa-exclamation-circle fa-2x"> Sorry! But this message was displayed: {{error.message}}</i>
</div>

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