Angularjs后接收钩或类似？

我给了Gloopy一个解决方案,但是,他引用的 other post在DOM和拦截器定义的函数中进行DOM操作.相反,我将启动微调器的逻辑移到了inter the的顶部,我在$rootScope中使用一个变量来控制微调器的隐藏/显示.它似乎工作得很好,我相信是更加可测试.

<img ng-show="polling" src="images/ajax-loader.gif">

angular.module('myApp.services',['ngResource']).
.config(function ($httpProvider) {
    $httpProvider.responseInterceptors.push('myHttpInterceptor');
    var spinnerFunction = function (data,headersGetter) {
        return data;
    };
    $httpProvider.defaults.transformRequest.push(spinnerFunction);
})
//register the interceptor as a service,intercepts ALL angular ajax http calls
.factory('myHttpInterceptor',function ($q,$window,$rootScope) {
    return function (promise) {
        $rootScope.polling = true;
        return promise.then(function (response) {
            $rootScope.polling = false;
            return response;
        },function (response) {
            $rootScope.polling = false;
            $rootScope.network_error = true;
            return $q.reject(response);
        });
    };
})
// other code left out