angularjs – 承诺解决后,范围不会在视图中更新

我有一个工厂：

'use strict';

myApp
.factory('Factory1',[ '$http','$q','$location','$rootScope','Service',function($http,$q,$location,$rootScope,Service){

    return {

        checkSomething: function(data){

          var deferred = $q.defer();  //init promise

          Service.checkSomething(data,function(response){
                // This is a response from a get request from a service
                deferred.resolve(response);
          });

          return deferred.promise;
        }
    };
}]);

我有一个控制器：

'use strict';

myApp
.controller('MyCtrl',['$rootScope','$scope','Factory1' function($rootScope,$scope,Service,Factory1) {


    if(Service.someCheck() !== undefined)
    {
      // Setting the variable when view is loaded for the first time,but this shouldn't effect anything
      $scope.stringToDisplay = "Loaded";

    }


    $scope.clickMe = function(){
      Factory1.chechSomething($scope.inputData).then(function(response){
          $scope.stringToDisplay = response.someData; // The data here is actually being loaded!

      });
    };

}]);

和视图：

<div class="app " ng-controller="MyCtrl">    
    {{stringToDisplay}}    
    <button class="button" ng-click="clickMe()">Update display</button>    
</div>

但是当我点击“更新显示”按钮时,视图中的数据没有被更新.为什么？

即使$范围正在加载数据

编辑：

嗯,看来我在尝试$scope时收到一个错误$apply(),它说：

[$rootScope:inprog] $digest already in progress