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A complete guide to UI Router in Angularjs_AngularJS

WBOY
WBOYOriginal
2016-05-16 15:16:491116browse

First of all, I will introduce you to the basic usage of angular-ui-router.

How to reference dependency angular-ui-router

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

$stateProvider.state(stateName, stateConfig)

stateName is of type string
stateConfig is object type
//statConfig can be an empty object
$stateProvider.state("home",{});
//state can have children and parents
$stateProvider.state("home",{});
$stateProvider.state("home.child",{})
//state can be chained
$stateProvider.state("home",{}).state("about",{}).state("photos",{});

StateConfig contains fields: 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])
The formal parameter to is of type string, which is required. Use "^" or "." to indicate a relative path;
The formal parameter toParams is nullable and the type is object;
The formal parameter options is nullable and the type is an object. The fields include: location is a bool type and the default is true, inherit is a bool type and the default is true, relative is an object and the default is $state.$current, notify is a bool type and the default is true, and reload is a bool type and the default is true. is false

$state.go('photos.detail')
$state.go('^') to the previous level, such as from photo.detail to photo
$state.go('^.list') to adjacent state, such as from photo.detail to photo.list
$state.go('^.detail.comment') to grandchild state, such as from photo.detail to photo.detial.comment

ui-sref

ui-sref='stateName'
ui-sref='stateName({param:value, param:value})'

ui-view

== ui-view without name

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

Or configure it like this: 

$stateProvider.state("home"{
views: {
"": {
template: "<h1>hi</h1>"
}
}
})

==Named ui-view

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

==Multiple ui-view

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

Project file structure

node_modules/
partials/
.....about.html
.....home.html
.....photos.html
app.js
index.html

Create state and 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>

Jump between states

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>

The above jumps between states through the ui-sref attribute.

Multiple views and state nesting

Sometimes, there may be multiple ui-views on a page, such as: 

<div ui-view="header"></div>
<div ui-view="body"></div>

Assume that the above page belongs to a state named parent.

We know that in ui-router, a state is set roughly like this: 

<div ui-view="header"></div>
<div ui-view="body"></div>

All key-value pairs under views in all states (similar to "body@content":{templateUrl: 'partials/photos.html'}) are put into a key-value set. The working principle of ui-view is to find matching keys in this key value set based on its own attribute values, and display the corresponding page when found.

Click on the page link corresponding to the header, which may jump to another sub-page appearing at the position of 157a8b9e03809992e5e4dca6aadefbe916b28748ea4df4d9c2150843fecfba68. At this time, a child-parent relationship appears on the page, and each page belongs to a certain state, so a child-parent relationship appears between states. These redirected subpages may be called parent.son1, parent.son2... in the routing settings. This is the nesting of state.

Add content.html and header.html to the existing file structure, and the file structure becomes:

node_modules/
partials/
.....about.html
.....home.html
.....photos.html
.....content.html
.....header.html
app.js
index.html

content.html contains multiple ui-views. One ui-view is related to the page header and remains unchanged; a ui-view will display different content according to the click on the page header

<div ui-view="header"></div>
<div ui-view="body"></div>

header.html Put the nav part of the original indext.html here

<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">Photos</a>
</li>
<li>
<a ui-sref="content.about">About</a>
</li>
</ul>
</div>
</div>
</nav>

index.html now looks like this

f4af3b987294f59719cfb61261cd837a16b28748ea4df4d9c2150843fecfba68

app.js routing is now set up like this

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

At this time, the page is presented like this:

→ Go to the home route 

.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f4af3b987294f59719cfb61261cd837a16b28748ea4df4d9c2150843fecfba68

.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a3a1ba0d7e28183e6ce19ccf35d21eab16b28748ea4df4d9c2150843fecfba68，就加载如下：

"header@content":{templateUrl: 'partials/header.html'},

看到157a8b9e03809992e5e4dca6aadefbe916b28748ea4df4d9c2150843fecfba68，先加载 "body@content":{templateUrl: 'partials/home.html'}

→ 点击header上的链接

点击8d950d256a72e8f137a6c79a3669e3b6Photos5db79b134e9f6b82c0b36e0489ee08ed，来到：

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

把partials/photos.html显示到157a8b9e03809992e5e4dca6aadefbe916b28748ea4df4d9c2150843fecfba68中去。

点击157a8b9e03809992e5e4dca6aadefbe916b28748ea4df4d9c2150843fecfba68，来到：

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

把partials/about.html显示到157a8b9e03809992e5e4dca6aadefbe916b28748ea4df4d9c2150843fecfba68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

f4af3b987294f59719cfb61261cd837a16b28748ea4df4d9c2150843fecfba68

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be011ab77dfad3439f4fefb8f2e921a3Photos5db79b134e9f6b82c0b36e0489ee08ed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：

4a249f0d628e2318394fd9b75b4636b1photos-detail-comment473f0a7621bec819994bb5020d29372a

app.js state多级嵌套的设置为

var photoGallery = angular.module('photoGallery',["ui.router"]);
photoGallery.config(function($stateProvider, $urlRouterProvider){
$urlRouterProvider.otherwise('home');
$stateProvider
.state('content',{
url: '/',
views:{
"":{templateUrl: 'partials/content.html'},
"header@content":{templateUrl: 'partials/header.html'},
}
})
.state('content.home',{
url: 'home',
views:{
"body@content":{templateUrl: 'partials/home.html'}
}
})
.state('content.photos',{
url: 'photos',
views:{
"body@content":{templateUrl: 'partials/photos.html'}
}
})
.state('content.photos.list',{
url: '/list',
templateUrl: 'partials/photos-list.html'
})
.state('content.photos.detail',{
url: '/detail',
templateUrl: 'partials/photos-detail.html'
})
.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'}
}
})
})

 抽象state

如果一个state,没有通过链接找到它，那就可以把这个state设置为abstract:true,我们把以上的content和content.photos这2个state设置为抽象。

.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

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'},
{ name:'User2', comment:'Very good'}
]},
{ id: 1, title: 'Photo 2', description: 'description for photo 2', imageName: 'image2.jpg', comments:[
{ name: 'user2', comment: 'Nice'},
{ name:'User1', comment:'Very good'}
]},
{ id: 2, title: 'Photo 3', description: 'description for photo 3', imageName: 'image3.jpg', comments:[
{name: 'user1', comment: 'Nice'}
]},
{ id: 3, title: 'Photo 4', description: 'description for photo 4', imageName: 'image4.jpg', comments:[
{name: 'user1', comment: 'Nice'},
{ name:'User2', comment:'Very good'},
{ name:'User3', comment:'So so'}
]}
];
//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', function($scope,$state){
}]);

以上，通过$scope.$$childTail.ctrPhotoList在父state中的controller中拿到子state中的controller；通过$scope.$parent.ctrPhoto在子state中的controller中拿到父state中的controller。

photos-list.html

<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ba002a4af4bdc4f383f8f2c590677aba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：

.state('content.photos.detail.comment',{
url:'/comment&#63;skip&limit',
templateUrl: 'partials/photos-detail-comment.html',
controller: 'PhotoCommentController',
controllerAs: 'ctrPhotoComment'
})

controllers.js 中修改如下

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&#63;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 &#63; 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

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()
});
});
$rootScope.$on('$stateChangeError', 
function(event, toState, toParams, fromState, fromParams, error){
event.preventDefault();
$state.go('content.error', {error: error});
});
}
]);

添加2个state:

.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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