我试图在我的指令中使用隔离范围放置一些默认值。基本上，绑定指令后，我需要使用scope对象进行一些DOM操作。下面是我的代码：

控制器：

angular.module('ctrl').controller('TempCtrl', function($scope, $location, $window, $timeout, RestService, CommonSerivce) {

$scope.showAppEditWindow = function() {
    //Binding the directive isolate scope objects with parent scope objects
    $scope.asAppObj = $scope.appObj;
    $scope.asAppSubs = $scope.appSubscriptions;

    //Making Initial Settings
    CommonSerivce.broadcastFunction('doDirectiveBroadcast', "");
};

服务：

angular.module('Services').factory('CommonSerivce', function ($rootScope) {
return {       
    broadcastFunction: function(listener, args) {
        $rootScope.$broadcast(listener, args);
    }
};

指示：

angular.module('directives').directive('tempDirective', function() {
return {
    restrict : 'E',
    scope:{
        appObj:'=asAppObj',
        appSubs: '=asAppSubs'
    },
    link : function(scope, element, attrs) {},
    controller : function ($scope,Services,CommonSerivce) {         
        //Broadcast Listener 
        $scope.$on('doDirectiveBroadcast', function (event, args) {
            $scope.setDefaults();
        });

        $scope.setDefaults = function() {
            //Setting Default Value
            alert(JSON.stringify($scope.appSubs)); //Coming as undefined            
        };
    },
    templateUrl:"../template.html"
    };
});

自定义指令元素：

<temp-directive as-app-obj="asAppObj" as-app-subs="asAppSubs" />

现在，问题是，当尝试在指令内部的默认方法中访问隔离范围时，我在获取数据并将其绑定到DOM的同时获得了未定义的值。如何访问广播侦听器中的隔离作用域并修改指令模板HTML？还有另一个处理这个的麻烦吗？