How to add the page loader in angularJS??

To add the page loader , we need to determine the http request sent by us has been responded or not.

For this simple query we need to evaluate just the value of following expression.

$http.pendingRequests.length.

Following directive can be used anywhere to install loader the page on loading:-

Example:-

angular.module('myApp.loading',[])

   .directive('loading',   ['$http' ,function ($http)
    {
        return {
            restrict: 'A',
            link: function (scope, elm, attrs)
            {
                scope.isLoading = function () {
                    return $http.pendingRequests.length > 0;
                };

                scope.$watch(scope.isLoading, function (v)
                {
                    if(v){
                        elm.show();
                    }else{
                        elm.hide();
                    }
                });
            }
        };

    }]);

In View Page :-

Where spinner is the class you want to add as animation or loading image.

More about
Http Request