public void changeNotificationClass(final String newClass){
        boolean unregister = false;
        if(newClass.equalsIgnoreCase("Keine Mitteilungen")){
            unregister = true;
        }
        AsyncHttpClient client = new AsyncHttpClient();
        RequestParams params = new RequestParams();
        params.put("firebaseID",FirebaseInstanceId.getInstance().getToken());
        params.put("notificationsFor", unregister ? "unregister":newClass);
        client.post("https://owncloud.yannismate.de/fastdl/kantapp/changeNotification.php", params, new AsyncHttpResponseHandler() {
            @Override
            public void onSuccess(int i, Header[] headers, byte[] bytes) {
                arr.remove(0);
                arr.add(0, new SettingsOption("Mitteilungen für",newClass));
                adapter.notifyDataSetChanged();
            }

            @Override
            public void onFailure(int i, Header[] headers, byte[] bytes, Throwable throwable) {
                AlertDialog.Builder builder = new AlertDialog.Builder(activity);
                builder.setTitle("Aktualisierung fehlgeschlagen!");
                builder.setMessage("Um deine Notifications zu ändern, musst du mit dem Internet verbunden sein!");
                builder.setPositiveButton("OK", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        dialog.dismiss();
                    }
                });
                builder.create().show();
            }
        });
    }