Angular:来自服务的广播事件

Question

我想以角度创建自定义事件.目标是该事件将由服务广播,并且必须在控制器中捕获.

我有我的服务:

function doSomething() {
        // do something...
        $rootScope.$broadcast("bced");
        $rootScope.$emit("emitted");
        console.log('event');
}

和我的控制器:

$rootScope.$on("bced",function(){
    console.log("catched");
});
$rootScope.$on("emitted",function(){
    console.log("catched");
});

$scope.$on("bced",function(){
    console.log("catched");
});
$scope.$on("emitted",function(){
    console.log("catched");
});

但我无法捕捉到控制器中的事件.显示console.log('event')但我无法捕获任何事件.有人可以解释一下如何做到这一点吗？$ rootScope在服务和控制器中正确声明.

Answer 1

查看工作演示:

var app = angular.module('core', []);
    app.service('SomeService', function($timeout, $rootScope){
        this.generateEvent = function(){
            $timeout(function(){
                $rootScope.$broadcast('event:show', {some: 'data'});
            }, 3000);    
        }
        
    })
    
    app.controller('MainController', function($scope, SomeService){
        SomeService.generateEvent();
        $scope.$on('event:show', function(event, data){
            $scope.test = data.some;
        })
    })

<div ng-app="core" ng-controller="MainController">
    {{test}}
</div>

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>