myloginmidlet.java

一个j2me很简单的用户名密码注册的登陆框源代码

import java.util.Vector;

import javax.microedition.lcdui.Alert;
import javax.microedition.lcdui.Choice;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;

public class MyLoginMIDlet extends MIDlet
{
	public static MyLoginMIDlet midlet;
	public static Vector userList;//用户列表
	
	private Display dp;
	
	private MainList mainList;
	
	public MyLoginMIDlet()
	{
		midlet = this;
		userList = new Vector();
		
		dp = Display.getDisplay(this);
		
		mainList = new MainList("主界面", Choice.IMPLICIT);
	}

	protected void startApp() throws MIDletStateChangeException
	{
		dp.setCurrent(mainList);
	}
	
	public void showMainList()
	{
		dp.setCurrent(mainList);
	}
	
	public void showLoginForm()
	{
		LoginForm loginForm = new LoginForm("登录");
		dp.setCurrent(loginForm);
	}
	
	public void showRegisterForm()
	{
		RegisterForm registerForm = new RegisterForm("注册");
		dp.setCurrent(registerForm);
	}
	
	public void showWelcomeList(User user)
	{
		WelcomeList welcomeList = new WelcomeList(user.getUserName()+",欢迎光临!",Choice.IMPLICIT, user);
		dp.setCurrent(welcomeList);
	}
	
	public void showPersonalInfoForm(User user)
	{
		PersonalInfoForm form = new PersonalInfoForm("个人信息",user);
		dp.setCurrent(form);
	}
	
	public void showPWDForm(User user)
	{
		PWDForm form = new PWDForm("密码修改",user);
		dp.setCurrent(form);
	}
	
	public void showAlert(Alert al, Displayable da)
	{
		dp.setCurrent(al, da);
	}
	
	public MainList getMainList()
	{
		return mainList;
	}
	
	protected void pauseApp()
	{
		// TODO Auto-generated method stub

	}
	
	protected void destroyApp(boolean arg0) throws MIDletStateChangeException
	{
		// TODO Auto-generated method stub

	}
}