在android中发送表单（AJAX）并接收JSON响应

The idea is duplicate on android this web http://www.telekino.com.ar/ In the site there is a form to check if your lottery ticket won

According to other Post, the site uses the ajax to contact the webservice and get the data.

I dont know where start, the only step I can do is the layout. ( Three EditText for the three values needed to send the form, and one button to start the process) then I am lost. How i continue? What I need to use to send this values and receive the response.?

Is possible to duplicate on the app this request?

I'm doing a http request here and in my success method I get a response saved in the variable "data".

$http({ method: 'GET', url: 'http:/****.**/api/gebruikers?email=' + $scope.email + '&wachtwoord=' + $scope.wachtwoord }).success(function (data) {
                // variable "data" is the JSON response I recieve, it is a JSON string.

            });