AngularJS中ui-router全攻略
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首先是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:
.state(‘content.photos‘,{ url: ‘photos‘, views:{ "[email protected]":{templateUrl: ‘partials/photos.html‘} } })
所有state下views下的所有键值对(类似 "[email protected]":{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
<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 这时变成了这样
<div ui-view></div>
app.js 路由现在这样设置
var photoGallery = angular.module(‘photoGallery‘,["ui.router"]); photoGallery.config(function($stateProvider, $urlRouterProvider){ $urlRouterProvider.otherwise(‘home‘); $stateProvider .state(‘content‘,{ url: ‘/‘, views:{ "":{templateUrl: ‘partials/content.html‘}, "[email protected]":{templateUrl: ‘partials/header.html‘}, } }) .state(‘content.home‘,{ url: ‘home‘, views:{ "[email protected]":{templateUrl: ‘partials/home.html‘} } }) .state(‘content.photos‘,{ url: ‘photos‘, views:{ "[email protected]":{templateUrl: ‘partials/photos.html‘} } }) .state(‘content.about‘,{ url:‘about‘, views:{ "[email protected]":{templateUrl: ‘partials/about.html‘} } }) })
这时候,页面是这样呈现出来的:
→ 来到home这个路由
.state(‘content.home‘,{ url: ‘home‘, views:{ "[email protected]":{templateUrl: ‘partials/home.html‘} } })
以上,告诉我们partials/home.html将会被加载到与"[email protected]"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‘}, "[email protected]":{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:
"[email protected]":{templateUrl: ‘partials/header.html‘},
看到<div ui-view="body"></div>,先加载 "[email protected]":{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:{ "[email protected]":{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:{ "[email protected]":{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
var photoGallery = angular.module(‘photoGallery‘,["ui.router"]); photoGallery.config(function($stateProvider, $urlRouterProvider){ $urlRouterProvider.otherwise(‘home‘); $stateProvider .state(‘content‘,{ url: ‘/‘, views:{ "":{templateUrl: ‘partials/content.html‘}, "[email protected]":{templateUrl: ‘partials/header.html‘}, } }) .state(‘content.home‘,{ url: ‘home‘, views:{ "[email protected]":{templateUrl: ‘partials/home.html‘} } }) .state(‘content.photos‘,{ url: ‘photos‘, views:{ "[email protected]":{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:{ "[email protected]":{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‘}, "[email protected]":{templateUrl: ‘partials/header.html‘}, } }) ... .state(‘content.photos‘,{ url: ‘photos‘, abstract: true, views:{ "[email protected]":{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
$urlRouterProvider.otherwise(‘home‘);
即
.state(‘content.home‘,{ url: ‘home‘, views:{ "[email protected]":{templateUrl: ‘partials/home.html‘} } })
最终把partials/home.html显示出来。
■ 使用控制器
在实际项目中,数据大多从controller中来。
首先在路由中设置state所用到的控制器以及控制器别名。
var photoGallery = angular.module(‘photoGallery‘,["ui.router"]); photoGallery.config(function($stateProvider, $urlRouterProvider){ $urlRouterProvider.otherwise(‘home‘); $stateProvider .state(‘content‘,{ url: ‘/‘, abstract: true, views:{ "":{templateUrl: ‘partials/content.html‘}, "[email protected]":{templateUrl: ‘partials/header.html‘}, } }) .state(‘content.home‘,{ url: ‘home‘, views:{ "[email protected]":{ templateUrl: ‘partials/home.html‘, controller: ‘HomeController‘, controllerAs: ‘ctrHome‘ } } }) .state(‘content.photos‘,{ url: ‘photos‘, abstract: true, views:{ "[email protected]":{ templateUrl: ‘partials/photos.html‘, controller: ‘PhotoController‘, controllerAs: ‘ctrPhoto‘ } } }) .state(‘content.photos.list‘,{ url: ‘/list‘, templateUrl: ‘partials/photos-list.html‘, controller: "PhotoListController", controllerAs: ‘ctrPhotoList‘ }) .state(‘content.photos.detail‘,{ url: ‘/detail‘, templateUrl: ‘partials/photos-detail.html‘, controller: ‘PhotoDetailController‘, controllerAs: ‘ctrPhotoDetail‘ }) .state(‘content.photos.detail.comment‘,{ url: ‘/comment‘, templateUrl: ‘partials/photos-detail-comment.html‘ }) .state(‘content.about‘,{ url:‘about‘, views:{ "[email protected]":{templateUrl: ‘partials/about.html‘} } }) })
添加controller.js,该文件用来定义所用到的controller.现在的文件结构为:
asserts/
.....css/
.....images/
..........image1.jpg
..........image2.jpg
..........image3.jpg
..........image4.jpg
node_modules/
partials/
.....about.html
.....home.html
.....photos.html
.....content.html
.....header.html
.....photos-list.html
.....photo-detail.html
.....photos-detail-comment.html
app.js
index.html
controllers.js
photoGallery.controller(‘HomeController‘,[‘$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<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="c以上是关于AngularJS中ui-router全攻略的主要内容,如果未能解决你的问题,请参考以下文章
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