loginmidlet.java

应用RMS实现用户自动登陆功能

/*
 * Created on 2004-11-4
 *
 * TODO To change the template for this generated file go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
package com.j2medev.autologin;

import javax.microedition.lcdui.*;
import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;

/**
 * @author P2800
 * 
 * TODO To change the template for this generated type comment go to Window -
 * Preferences - Java - Code Style - Code Templates
 */
public class LoginMIDlet extends MIDlet implements CommandListener
{

    private Display display;
    private Form loginForm;
    private Form successForm;
    private TextField userName;
    private TextField password;
    private ChoiceGroup autoLogin;
    private Model model;
    public static final Command ConnCMD = new Command("Connect", Command.OK, 1);

    /*
     * (non-Javadoc)
     * 
     * @see javax.microedition.midlet.MIDlet#startApp()
     */
    protected void startApp() throws MIDletStateChangeException
    {
        initMIDlet();
        Preference p = model.getPreference(2);
        if (p == null || !p.isAutoLogin())
        {
            display.setCurrent(loginForm);
        } else if (p.isAutoLogin())
        {
            Account account = model.getAccount(1);
            System.out.println("username:" + account.getUsrName() + "password:"
                    + account.getPassword());
            display.setCurrent(successForm);

        }

    }

    public void initMIDlet()
    {
        model = new Model();
        display = Display.getDisplay(this);
        loginForm = new Form("LoginForm");
        userName = new TextField("username", null, 20, TextField.ANY);
        password = new TextField("password", null, 20, TextField.PASSWORD);
        autoLogin = new ChoiceGroup("AutoLogin", Choice.MULTIPLE,
                new String[] { "remember me" }, null);
        loginForm.append(userName);
        loginForm.append(password);
        loginForm.append(autoLogin);
        loginForm.addCommand(ConnCMD);
        loginForm.setCommandListener(this);
        successForm = new Form("OK");
        successForm.append("Ok you have connected to server");
    }

    /*
     * (non-Javadoc)
     * 
     * @see javax.microedition.midlet.MIDlet#pauseApp()
     */
    protected void pauseApp()
    {
        // TODO Auto-generated method stub

    }

    /*
     * (non-Javadoc)
     * 
     * @see javax.microedition.midlet.MIDlet#destroyApp(boolean)
     */
    protected void destroyApp(boolean arg0) throws MIDletStateChangeException
    {
        // TODO Auto-generated method stub

    }

    /*
     * (non-Javadoc)
     * 
     * @see javax.microedition.lcdui.CommandListener#commandAction(javax.microedition.lcdui.Command,
     *      javax.microedition.lcdui.Displayable)
     */
    public void commandAction(Command arg0, Displayable arg1)
    {
        String _userName;
        String _password;
        boolean auto = false;

        if (arg0 == ConnCMD)
        {
            _userName = userName.getString();
            _password = password.getString();
            auto = autoLogin.isSelected(0);
            System.out.println(_userName + _password + auto);
            if (auto)
            {
                Account account = new Account(_userName, _password);
                model.saveAccount(account);
                Preference preference = new Preference(auto);
                model.savePreference(preference);

            }
            display.setCurrent(successForm);
        }
    }

}