我只是在构建一个简单的应用程序来学习AngularJS，并且在切换 View 时无法更新变量。这是我到目前为止的内容:
function routeConfig($stateProvider, $urlRouterProvider) {
$stateProvider
.state('home', {
url: '/',
templateUrl: 'app/main/main.html',
controller: 'MainController',
controllerAs: 'main'
})
.state('team', {
url: '/team',
templateUrl: 'app/main/team.html',
controller: 'MainController',
controllerAs: 'main'
})
$urlRouterProvider.otherwise('/');
}
这是我的 Controller 的一部分:
function MainController($timeout, webDevTec, toastr, $resource, $scope) {
var vm = this;
var GetTeam = $resource('https://apisite.com/api_endpoint/:teamId', {teamId: '@id'});
vm.teamName = '';
function getTeamInfo(id) {
var teamObj = GetTeam.get({teamId: id});
$timeout(function(){
vm.teamName = teamObj["name"];
},100)
};
vm.getTeamInfo = getTeamInfo;
}
然后在main.html中，通过ng-click调用getTeamInfo:
<ul class="list-group">
<li class="list-group-item" ng-repeat="team in main.teams" ng-click="main.getTeamInfo(team.id)"><a href="#/team">{{ team.name }}</a></li>
</ul>
单击该链接将带您进入team.html:
<div class="row">
<div class="col-sm-12">
<h3>{{ main.teamName }}</h3>
<ul class="list-group">
. . .
</ul>
</div>
</div>
由于某些原因，“
main.teamName”未更新。我也尝试过$scope.$apply(function(){vm.teamName = teamObj["name"]}方法，但是没有运气。我还做了console.log(teamObj["name"])之前的'vm.teamName'和之后的'console.log(vm.teamName)'，以查看是否获得了预期的结果并且可以。我现在不知道为什么不更新新 View 。感谢您的见识，耐心和时间!
更新1
我也尝试在变量($ scope.teamName)上使用$ scope，并在运气不好的情况下使用$ scope。$ apply(function(){$ scope.teamName = teamObj [“name”]})。
更新2
我也尝试过调用$ scope。$ apply();。在'vm.teamName = teamObj [“name”]'之后，没有运气
最佳答案
分配teamObj时，似乎尚未填充vm.teamName
如果仅引用teamObj而不是创建新属性，您将使生活变得更加轻松。
我根据代码的修改版本制作了一个插件，以显示可能的实现。我无法使用 Controller 使用语法来使它正常工作，我不确定原因(可能是由于与共享 Controller 有关的某些问题；不确定)。无论如何，希望它将对您有所帮助。
DEMO
app.js
var app = angular.module('plunker', ['ui.router', 'ngResource']);
app.controller('MainController', MainController);
app.config(routeConfig);
function MainController($timeout, $scope, $resource) {
// mock data
var GetTeam = $resource('http://demo7592070.mockable.io/teams/:teamId', {teamId: '@id'});
//var GetTeam = $resource('https://apisite.com/api_endpoint/:teamId', {teamId: '@id'});
$scope.teamName = 'undefined';
$scope.getTeamInfo = getTeamInfo;
function getTeamInfo(id) {
var teamObj = GetTeam.get({teamId: id});
$scope.teamName = teamObj.name;
$scope.teamObj = teamObj;
};
}
function routeConfig($stateProvider, $urlRouterProvider) {
$stateProvider
.state('home', {
url: '/',
templateUrl: 'main.html',
controller: 'MainController'
})
.state('team', {
url: '/team',
templateUrl: 'team.html',
controller: 'MainController'
});
console.log('ROUTECONFIG');
$urlRouterProvider.otherwise('/');
}
index.html
<!DOCTYPE html>
<html ng-app="plunker">
<head>
<meta charset="utf-8" />
<title>AngularJS Plunker</title>
<script>document.write('<base href="' + document.location + '" />');</script>
<link rel="stylesheet" href="style.css" />
<!-- JS (load angular, ui-router, and our custom js file) -->
<script src="http://code.angularjs.org/1.2.13/angular.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/angular-ui-router/0.2.8/angular-ui-router.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.4.2/angular-resource.js"></script>
<script src="app.js"></script>
</head>
<body>
<a ui-sref="home">home</a>
<a ui-sref="team">team</a>
<div ui-view=""></div>
</body>
</html>
main.html
<h1>Home</h1>
<pre>$scope.teamName => {{teamName}}</pre>
<pre>$scope.teamObj => {{teamObj}}</pre>
<pre>$scope.teamObj.name => {{teamObj.name}}</pre>
<button ng-click="getTeamInfo(1)">Get Team 1</button>
team.html
<h1>Team</h1>
<pre>$scope.teamName => {{teamName}}</pre>
<pre>$scope.teamObj => {{teamObj}}</pre>
<pre>$scope.teamObj.name => {{teamObj.name}}</pre>
<button ng-click="getTeamInfo(2)">Get Team 2</button>
关于angularjs - 切换 Angular View 不更新变量，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/31397993/