javascript - AngularJS:我的 $rootscope 全局函数未定义，$scope 未定义时出错

Question

实际上，我是 angularJS 的新手，我的场景是:

$rootScope.synchronization = function($scope, $rootScope, $window, $http) 
{
    if(localStorage.getItem('job_id') != "" && localStorage.getItem('job_id') > 0)
    {
        alert("found job id!"); 
        console.log(localStorage.getItem('job_id'));    
        if(localStorage.getItem('job_id.done_tasks') != "" && localStorage.getItem('job_id.done_tasks') > 0)
        {
            alert("found done tasks ids!");
            console.log(localStorage.getItem('job_id.done_tasks'));

            $scope.done_tasks = {};
            $scope.done_tasks = localStorage.getItem('job_id.done_tasks');
            $scope.job_id = localStorage.getItem('job_id');
            console.log($scope.done_tasks);             
            var userData = $http(
            {
                method: "post",
                url: "http://localhost/t-app/mobile-data/update-tasks.php",
                data: {
                        done_tasks : $scope.done_tasks,
                        job_id: $scope.job_id,
                    },
                headers: { 'Content-Type': 'application/x-www-form-urlencoded' }
            });
            userData.success(function (userdataobject)
            {
                $rootScope.status_id = userdataobject["status_id"];
                $rootScope.message = userdataobject["message"];

                localStorage.setItem('job_id', '');
                localStorage.setItem('job_id.done_tasks', '');

            })  
        }

        console.log(localStorage.getItem('job_id'));
        console.log(localStorage.getItem('job_id'));
    }

};

在我的 Controller 中我使用这个:

$interval( $rootScope.synchronization, 2000 , 1);

现在我收到此错误:

Error: [$rootScope:inprog] http://errors.angularjs.org/undefined/$rootScope/inprog?p0=%24digest

和

app.js (line 48)
Error: $http is not a function
$rootScope.synchronization@http://localhost/task-app/js/app.js:52:20

请帮我解决这个问题...我已经添加了 $scope、$rootScope、$window、$http 但仍然对我不起作用。请看看我的场景。

Answer 1

您应该更改函数 ($interval) 调用这是我的建议:

$interval($rootScope.synchronization, 2000 , 1, false, $scope, $rootScope, $window, $http);

$inverval API

更好地解决您的问题:

$timeout($rootScope.synchronization, 2000, false, $scope, $rootScope, $window, $http);

$timeout API