我要做一个滚到底部自动加载更多的功能，现在用了插件ng-infinite-scroll，写成这样：
JS：

egVideoApp.controller('videoListCtrl',
         function ($scope, addMore) {
        $scope.addmore = new addMore();
});
egVideoApp.factory('addMore', function ($http) {
         var addMore = function () {
                 this.videos = [];
                 this.busy = false;
                 this.after = '';
                 this.page = 1;
             };

         addMore.prototype.nextPage = function () {
                 if (this.busy) return;
                 this.busy = true;
                 var url = "http://api.ergeng.com/normalvideo/list?after=" + this.after + "&callback=JSON_CALLBACK";
                 $http.jsonp(url).success(function (data) {
                     console.log(data);
                     var videos = data.data.list;
                         for (var i = 0; i < videos.length; i++) {
                                 this.videos.push(videos[i]);
                             }
                         this.after =this.videos[this.videos.length - 1].id;
                         this.busy = false;
                         this.page += 1;
                     }.bind(this));
             };
         return addMore;
     });

html:

    

        

            

                
                    

                        
{{video.title}}

                        

                            {{video.category_name}}
                            {{video.duration}}
                        
                    

                    

                    
                
                

                

            

            

                
            
        

    

现在后台给我两个接口，一个page,一个pageSize，如何和现有的代码结合起来？