Alles funktioniert, außer wenn es bis zum letzten Teil des Codes mit "Erfolgreich registriert!" dann erscheint der im Titel erwähnte Fehler im Meldungsabschnitt registerDialog.

Irgendetwas, was ich falsch mache? Kann mir jemand helfen, meinen Code zu überprüfen?

Vielen Dank.

Die App stürzte nicht ab, sondern kehrte einfach zur Hauptseite der App zurück. und wenn ich die registertaste erneut drücke, kehrt sie mit dem gleichen fehler zurück.

private void setRegister (Button b) {b.setOnClickListener (neuer View.OnClickListener () {

        private AsyncTask<String, Void, String> task2;

        public void onClick(View v) {
            // TODO Auto-generated method stub
            registerDialog = new AlertDialog.Builder(Login.this).create();
            registerDialog.setTitle("Register Alert!");
            registerDialog.setButton(DialogInterface.BUTTON_NEGATIVE, "Back", new DialogInterface.OnClickListener() {

                        public void onClick(DialogInterface dialog, int which) {
                            // TODO Auto-generated method stub
                            registerDialog.dismiss();
                        }
                    });

            task2 = new AsyncTask<String, Void, String>() {

                ProgressDialog dialog2;
                ArrayList<NameValuePair> postParameters2;
                String response2 = null;

                    @Override
                    protected void onPreExecute() {
                        postParameters2 = new ArrayList<NameValuePair>();
                        postParameters2.add(new BasicNameValuePair("usernamelog", rUsername.getText().toString()));
                        postParameters2.add(new BasicNameValuePair("passwordlog", rPassword.getText().toString()));
                        postParameters2.add(new BasicNameValuePair("rpasswordlog", rRpassword.getText().toString()));
                        postParameters2.add(new BasicNameValuePair("emaillog", rEmail.getText().toString()));
                        postParameters2.add(new BasicNameValuePair("phonenumlog", rPhoneNum.getText().toString()));
                        postParameters2.add(new BasicNameValuePair("doblog", rBirthday.getText().toString()));
                        postParameters2.add(new BasicNameValuePair("genderlog", rGender.getText().toString().toUpperCase(Locale.ENGLISH)));                 

                        dialog2 = new ProgressDialog(Login.this, ProgressDialog.STYLE_SPINNER);
                        dialog2.setMessage("Registering...");       

                        dialog2.show();
                    }

                    @Override
                    protected String doInBackground(String... params) {
                        try {
                            response2 = CustomHttpClient.executeHttpPost("http://whatstherex.info/checkR.php", postParameters2);

                            String res2 = response2.toString();

                            res2 = res2.replaceAll("null", "");

                            if (res2.equals("1")) {
                                res2 = "Successfully Registered!";
                                rAuth.setTextColor(Color.GREEN);
                                return res2;
                            } else {
                                res2 = res2.toString();
                                rAuth.setTextColor(Color.RED);
                                return res2;
                            }
                        } catch (Exception e) {
                            res2 = e.toString();
                            rAuth.setTextColor(Color.BLACK);
                            return res2;
                        }
                    }

                    @Override
                    protected void onPostExecute(String result2) {
                        if(!result2.equals("Successfully Registered!") && !result2.equals("Username have to be at least 5 characters") && !result2.equals("Password have to be at least 8 characters") && !result2.equals("Passwords does not match") && !result2.equals("Email field is empty") && !result2.equals("Email field is not valid") && !result2.equals("Phone number Field is empty") && !result2.equals("Phone number is not numeric") && !result2.equals("Phone number is not 8 digit") && !result2.equals("Birthday Field is empty") && !result2.equals("Birthday is not numeric") && !result2.equals("Birthday is not in DDMMYYYY format") && !result2.equals("Gender Field is empty") && !result2.equals("Gender Field is invalid") && !result2.equals("Gender not in the format M or F") && !result2.equals("Duplicate entry '"+rUsername.getText().toString()+"' for key 'username'") && !result2.equals("Duplicate entry '"+rEmail.getText().toString()+"' for key 'email'") && !result2.equals("Duplicate entry '"+rPhoneNum.getText().toString()+"' for key 'phoneNum'")){
                        rAuth.setText("Unknown Error!!!");
                        rAuth.setTextColor(Color.BLUE);
                        registerDialog.setMessage(result2);
                        registerDialog.show();
                        dialog2.dismiss();
                        }else if (result2.equals("Duplicate entry '"+rUsername.getText().toString()+"' for key 'username'")) {
                            rAuth.setText("Username already in used");
                            rAuth.setTextColor(Color.RED);
                            registerDialog.setMessage("Username already in used");
                            registerDialog.show();
                            dialog2.dismiss();
                        }else if (result2.equals("Duplicate entry '"+rEmail.getText().toString()+"' for key 'email'")) {
                            rAuth.setText("Email already in used");
                            rAuth.setTextColor(Color.RED);
                            registerDialog.setMessage("Email already in used");
                            registerDialog.show();
                            dialog2.dismiss();
                        }else if (result2.equals("Duplicate entry '"+rPhoneNum.getText().toString()+"' for key 'phoneNum'")){
                            rAuth.setText("Phone number already in used");
                            rAuth.setTextColor(Color.RED);
                            registerDialog.setMessage("Phone number already in used");
                            registerDialog.show();
                            dialog2.dismiss();
                        }else {
                            rAuth.setText("Successfully Registered!");
                            rAuth.setTextColor(Color.GREEN);
                            registerDialog.setMessage("Successfully Registered!");
                            registerDialog.show();
                            dialog2.dismiss();
                        }
                    }

            };
            task2.execute();                                    
        }
    });         
}