Angularjs中UI Router超级详细的教程{{下}}

接着上一

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?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

<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

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>