事件 – AngularJS Broadcast不在第一个控制器负载上工作

$apply() is used to execute an expression in angular from outside of
the angular framework.

在您的情况下,您将在setTimeout中触发$broadcast,其中回调在角度框架之外被调用.

所以你有两个解决方案,要么使用由角度提供的$timeout服务,要么使用.$apply功能.

我更喜欢使用$timeout函数.

var ParentCtrl = function($scope,$rootScope,$timeout){

    $scope.broadcast = function(){
        $rootScope.$broadcast('Sup','Here is a parameter');
    };

    $timeout(function(){
        $scope.$broadcast('Sup');
    },1000);

    //this one does not work! Most likely due to scope life cycle
    $scope.$broadcast('Sup');

    $scope.$on('SupAgain',function(){
        console.log('SupAgain got handled!');
    });

};

演示：Fiddle

使用$apply

setTimeout(function(){
    $scope.$apply(function(){
        $scope.$broadcast('Sup');
    });
},1000);