使用AngularJS 1.6.1,我的页面只有一个控制器。我想使用$ routeParams将$ scope变量设置为(可选)路由参数的值。但不幸的是,这根本不起作用:
var myApp = angular.module('myApp', ['ngRoute']);
myApp.config(function($routeProvider) {
$routeProvider
.when('/', {
templateUrl: '/partials/partial1.htm'
})
.when('/:artist/:album', {
templateUrl: '/partials/partial1.htm'
})
.otherwise({
redirectTo: '/'
});
});
myApp.controller('myController', function($scope, $routeParams) {
$scope.artist = $routeParams.artist;
$scope.album = $routeParams.album;
});
使用console.log时,我可以看到正在设置值...但是看来路由器正在为参数化路由启动一个单独的控制器。因此,我尝试了使用其他控制器,然后使用$ emit和$ on将消息从第二个传递到第一个控制器。
var myApp = angular.module('myApp', ['ngRoute']);
myApp.config(function($routeProvider) {
$routeProvider
.when('/', {
templateUrl: '/partials/partial1.htm'
})
.when('/:artist/:album', {
templateUrl: '/partials/partial1.htm',
controller: 'URLController'
})
.otherwise({
redirectTo: '/'
});
});
myApp.controller('URLController', function($scope, $routeParams) {
$scope.$emit('UrlChanged', $routeParams.artist, $routeParams.album);
});
myApp.controller('myController', function($scope, $routeParams, $http) {
$scope.$on('UrlChanged', function(event, artist, album) {
$scope.artist = $routeParams.artist;
$scope.album = $routeParams.album;
// CORRECTION: It keeps firing events if I add this
$scope.loadAlbum();
// loadAlbum() contains a call to a Rest API on the same server via $http.get.
// Obviously this triggers the creation of a new URLController????
});
});
但这只会无限期地触发UrlChanged
个事件。
更正:如果我添加一个$http.get
呼叫,它只会 不断触发
要实现我的目标我该怎么做?
答案 0 :(得分:1)
尝试收听$route
服务的$routeChangeSuccess
事件(因为MainController
似乎在实际事件/导航发生之前已初始化):
myApp.controller('MainController', ['$scope', function ($scope) {
$scope.$on('$routeChangeStart', function ($event, next, current) {
var params = next.params;
if (params) {
$scope.artist = params.artist;
$scope.album = params.album;
}
});
}])