new HttpRequestTask(
        new HttpRequest("http://httpbin.org/post", HttpRequest.POST, "{ \"some\": \"data-æøå\" }" ),
        new HttpRequest.Handler() {
            @Override
            public void response(HttpResponse response) {
                if (response.code == 200) {
                    textView.setText(response.body);
                }
            }
        }).execute();