Java tutorial
package org.linphone.setup; /* RegisterFragment.java Copyright (C) 2012 Belledonne Communications, Grenoble, France This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ import android.accounts.Account; import android.accounts.AccountManager; import android.app.AlertDialog; import android.content.Context; import android.content.DialogInterface; import android.os.Bundle; import android.os.Handler; import android.support.v4.app.Fragment; import android.text.Editable; import android.text.InputFilter; import android.text.Spanned; import android.text.TextWatcher; import android.util.Patterns; import android.view.LayoutInflater; import android.view.View; import android.view.View.OnClickListener; import android.view.ViewGroup; import android.widget.Button; import android.widget.EditText; import android.widget.ImageView; import android.widget.TextView; import org.linphone.LinphoneManager; import org.linphone.LinphoneService; import org.linphone.R; import org.linphone.core.LinphoneProxyConfig; import java.net.URL; import java.util.Locale; import java.util.regex.Pattern; import de.timroes.axmlrpc.XMLRPCCallback; import de.timroes.axmlrpc.XMLRPCClient; import de.timroes.axmlrpc.XMLRPCException; import de.timroes.axmlrpc.XMLRPCServerException; /** * @author Sylvain Berfini */ public class RegisterFragment extends Fragment { private Handler mHandler = new Handler(); private EditText username, password, passwordConfirm, email; private boolean usernameOk = false; private boolean passwordOk = false; private boolean emailOk = false; private boolean confirmPasswordOk = false; private Button createAccount; private TextView errorMessage; private char[] acceptedChars = new char[] { 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '.', '_', '-' }; private char[] acceptedCharsForPhoneNumbers = new char[] { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '-', '+' }; private String inputFilterCharacters; // newInstance constructor for creating fragment with arguments public static RegisterFragment newInstance(int page, String title) { RegisterFragment fragmentFirst = new RegisterFragment(); Bundle args = new Bundle(); args.putInt("position", page); args.putString("title", title); fragmentFirst.setArguments(args); return fragmentFirst; } private String getUsername() { String username = this.username.getText().toString(); if (getResources().getBoolean(R.bool.allow_only_phone_numbers_in_wizard)) { LinphoneProxyConfig lpc = LinphoneManager.getLc().createProxyConfig(); username = lpc.normalizePhoneNumber(username); } return username.toLowerCase(Locale.getDefault()); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View view = inflater.inflate(R.layout.setup_register, container, false); username = (EditText) view.findViewById(R.id.setup_username); ImageView usernameOkIV = (ImageView) view.findViewById(R.id.setup_username_ok); addXMLRPCUsernameHandler(username, usernameOkIV); inputFilterCharacters = new String(acceptedChars); if (getResources().getBoolean(R.bool.allow_only_phone_numbers_in_wizard)) { inputFilterCharacters = new String(acceptedCharsForPhoneNumbers); } InputFilter filter = new InputFilter() { @Override public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) { if (end > start) { for (int index = start; index < end; index++) { if (!inputFilterCharacters.contains(String.valueOf(source.charAt(index)))) { return ""; } } } return null; } }; username.setFilters(new InputFilter[] { filter }); password = (EditText) view.findViewById(R.id.setup_password); passwordConfirm = (EditText) view.findViewById(R.id.setup_password_confirm); ImageView passwordOkIV = (ImageView) view.findViewById(R.id.setup_password_ok); addXMLRPCPasswordHandler(password, passwordOkIV); ImageView passwordConfirmOkIV = (ImageView) view.findViewById(R.id.setup_confirm_password_ok); addXMLRPCConfirmPasswordHandler(password, passwordConfirm, passwordConfirmOkIV); email = (EditText) view.findViewById(R.id.setup_email); ImageView emailOkIV = (ImageView) view.findViewById(R.id.setup_email_ok); addXMLRPCEmailHandler(email, emailOkIV); errorMessage = (TextView) view.findViewById(R.id.setup_error); createAccount = (Button) view.findViewById(R.id.setup_create); createAccount.setEnabled(false); createAccount.setOnClickListener(new OnClickListener() { public void onClick(View v) { AlertDialog.Builder builder = new AlertDialog.Builder(getActivity()); builder.setPositiveButton(R.string.button_ok, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) { createAccount(getUsername(), password.getText().toString(), email.getText().toString(), false); } }); builder.setNegativeButton(R.string.button_cancel, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) { } }); builder.setMessage(getString(R.string.setup_confirm_username).replace("%s", getUsername())); AlertDialog dialog = builder.create(); dialog.show(); } }); if (getResources().getBoolean(R.bool.pre_fill_email_in_wizard)) { Account[] accounts = AccountManager.get(getActivity()).getAccountsByType("com.google"); for (Account account : accounts) { if (isEmailCorrect(account.name)) { String possibleEmail = account.name; email.setText(possibleEmail); break; } } } return view; } private boolean isUsernameCorrect(String username) { if (getResources().getBoolean(R.bool.allow_only_phone_numbers_in_wizard)) { LinphoneProxyConfig lpc = LinphoneManager.getLc().createProxyConfig(); return lpc.isPhoneNumber(username); } else { return username.matches("^[a-zA-Z]+[a-zA-Z0-9.\\-_]{2,}$"); } } private void isUsernameRegistred(String username, final ImageView icon) { final Runnable runNotReachable = new Runnable() { public void run() { errorMessage.setText(R.string.wizard_server_unavailable); usernameOk = false; icon.setImageResource(R.drawable.wizard_notok); createAccount.setEnabled(usernameOk && passwordOk && confirmPasswordOk && emailOk); } }; try { XMLRPCClient client = new XMLRPCClient(new URL(getString(R.string.wizard_url))); XMLRPCCallback listener = new XMLRPCCallback() { Runnable runNotOk = new Runnable() { public void run() { errorMessage.setText(R.string.wizard_username_unavailable); usernameOk = false; icon.setImageResource(R.drawable.wizard_notok); createAccount.setEnabled(usernameOk && passwordOk && confirmPasswordOk && emailOk); } }; Runnable runOk = new Runnable() { public void run() { errorMessage.setText(""); icon.setImageResource(R.drawable.wizard_ok); usernameOk = true; createAccount.setEnabled(usernameOk && passwordOk && confirmPasswordOk && emailOk); } }; public void onResponse(long id, Object result) { int answer = (Integer) result; if (answer != 0) { mHandler.post(runNotOk); } else { mHandler.post(runOk); } } public void onError(long id, XMLRPCException error) { mHandler.post(runNotReachable); } public void onServerError(long id, XMLRPCServerException error) { mHandler.post(runNotReachable); } }; client.callAsync(listener, "check_account", username); } catch (Exception ex) { mHandler.post(runNotReachable); } } private boolean isEmailCorrect(String email) { Pattern emailPattern = Patterns.EMAIL_ADDRESS; return emailPattern.matcher(email).matches(); } private boolean isPasswordCorrect(String password) { return password.length() >= 6; } private void createAccount(final String username, final String password, String email, boolean suscribe) { final Runnable runNotReachable = new Runnable() { public void run() { errorMessage.setText(R.string.wizard_server_unavailable); } }; final Context context = SetupActivity.instance() == null ? LinphoneService.instance().getApplicationContext() : SetupActivity.instance(); try { XMLRPCClient client = new XMLRPCClient(new URL(context.getString(R.string.wizard_url))); XMLRPCCallback listener = new XMLRPCCallback() { Runnable runNotOk = new Runnable() { public void run() { errorMessage.setText(R.string.wizard_failed); } }; Runnable runOk = new Runnable() { public void run() { SetupActivity.instance().saveCreatedAccount(username, password, context.getString(R.string.default_domain)); SetupActivity.instance().displayWizardConfirm(username); } }; public void onResponse(long id, Object result) { int answer = (Integer) result; if (answer != 0) { mHandler.post(runNotOk); } else { mHandler.post(runOk); } } public void onError(long id, XMLRPCException error) { mHandler.post(runNotReachable); } public void onServerError(long id, XMLRPCServerException error) { mHandler.post(runNotReachable); } }; client.callAsync(listener, "create_account_with_useragent", username, password, email, LinphoneManager.getInstance().getUserAgent()); } catch (Exception ex) { mHandler.post(runNotReachable); } } private void addXMLRPCUsernameHandler(final EditText field, final ImageView icon) { field.addTextChangedListener(new TextWatcher() { public void afterTextChanged(Editable s) { } public void beforeTextChanged(CharSequence s, int start, int count, int after) { } public void onTextChanged(CharSequence s, int start, int count, int after) { usernameOk = false; String username = field.getText().toString().toLowerCase(Locale.getDefault()); if (isUsernameCorrect(username)) { if (getResources().getBoolean(R.bool.allow_only_phone_numbers_in_wizard)) { LinphoneProxyConfig lpc = LinphoneManager.getLc().createProxyConfig(); username = lpc.normalizePhoneNumber(username); } isUsernameRegistred(username, icon); } else { errorMessage.setText(R.string.wizard_username_incorrect); icon.setImageResource(R.drawable.wizard_notok); } } }); } private void addXMLRPCEmailHandler(final EditText field, final ImageView icon) { field.addTextChangedListener(new TextWatcher() { public void afterTextChanged(Editable s) { } public void beforeTextChanged(CharSequence s, int start, int count, int after) { } public void onTextChanged(CharSequence s, int start, int count, int after) { emailOk = false; if (isEmailCorrect(field.getText().toString())) { icon.setImageResource(R.drawable.wizard_ok); emailOk = true; errorMessage.setText(""); } else { errorMessage.setText(R.string.wizard_email_incorrect); icon.setImageResource(R.drawable.wizard_notok); } createAccount.setEnabled(usernameOk && passwordOk && confirmPasswordOk && emailOk); } }); } private void addXMLRPCPasswordHandler(final EditText field1, final ImageView icon) { TextWatcher passwordListener = new TextWatcher() { public void afterTextChanged(Editable s) { } public void beforeTextChanged(CharSequence s, int start, int count, int after) { } public void onTextChanged(CharSequence s, int start, int count, int after) { passwordOk = false; if (isPasswordCorrect(field1.getText().toString())) { passwordOk = true; icon.setImageResource(R.drawable.wizard_ok); errorMessage.setText(""); } else { errorMessage.setText(R.string.wizard_password_incorrect); icon.setImageResource(R.drawable.wizard_notok); } createAccount.setEnabled(usernameOk && passwordOk && confirmPasswordOk && emailOk); } }; field1.addTextChangedListener(passwordListener); } private void addXMLRPCConfirmPasswordHandler(final EditText field1, final EditText field2, final ImageView icon) { TextWatcher passwordListener = new TextWatcher() { public void afterTextChanged(Editable s) { } public void beforeTextChanged(CharSequence s, int start, int count, int after) { } public void onTextChanged(CharSequence s, int start, int count, int after) { confirmPasswordOk = false; if (field1.getText().toString().equals(field2.getText().toString())) { confirmPasswordOk = true; icon.setImageResource(R.drawable.wizard_ok); if (!isPasswordCorrect(field1.getText().toString())) { errorMessage.setText(R.string.wizard_password_incorrect); } else { errorMessage.setText(""); } } else { errorMessage.setText(R.string.wizard_passwords_unmatched); icon.setImageResource(R.drawable.wizard_notok); } createAccount.setEnabled(usernameOk && passwordOk && confirmPasswordOk && emailOk); } }; field1.addTextChangedListener(passwordListener); field2.addTextChangedListener(passwordListener); } }