angularjs – 离散无限滚动功能在页面加载时调用

Feed.html

<ion-content ng-controller="FeedController" > 
    <ion-refresher pulling-text="Pull to refresh.." on-refresh="get_feeds()" refreshing-text="Fetching ..." refreshing-icon="ion-loading-b">
    </ion-refresher>
    <ion-list>
        <ion-item ng-repeat="question in questions">
            <div class="item item-divider">
{{question.question}}
            </div>
            <div class="item" ng-bind-html="question.answer | trustHtml">
            </div>
        </ion-item>
    </ion-list>
    <ion-infinite-scroll
        on-infinite="get_more()"
        distance="1%">
    </ion-infinite-scroll>
</ion-content>

Feed.js

(function(){
    "use strict";
    angular.module( 'app.controllers' ).controller( 'FeedController',[ 'eTobb','Users','$scope','$timeout',function( eTobb,Users,$scope,$timeout) {

            var pageIndex = 1;

            $scope.questions = [];

            $scope.get_feeds = function(pageIndex){
                eTobb.get($scope.apiCall,{ user_id: Users.id,page: 0 },function(response) {
                    if ( response ){
                        $scope.questions = $scope.questions.concat(response);
                        console.log($scope.questions);
                    }
                })
                .finally(function(){
                    $scope.$broadcast('scroll.refreshComplete');
                    $scope.$broadcast('scroll.infiniteScrollComplete');
                });
            };

            $scope.get_more = function(){
                $scope.get_feeds(pageIndex);
                pageIndex = pageIndex + 1; 
                console.log('why the hell am i being called?');
            };
        }
        ]);
})();

问题

在无限属性上定义的方法在页面加载时被调用两次，然后每次页面底部都被正常调用(一次)。
有人知道为什么会这样吗？