coursesmanager.java

这是一个用j2me编写的手机管理系统。主要功能为课程表

package coursesManager;

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

public class CoursesManager extends MIDlet implements CommandListener,ItemCommandListener{
	private Form mainForm,loginForm;
	private CourseForm courseForm;
	private Display display;
	private boolean firstTime,firstLogin;
	private Command EXIT_CMD,LOGIN_CMD;
	private StringItem[] week;
	private StringItem[][] courses;
	private Command[][] CMD_OK;
	private TextField password;
	
	public CoursesManager() {
		display=Display.getDisplay(this);
		EXIT_CMD=new Command("退出",Command.EXIT,1);
		firstTime=true;
		firstLogin=true;
	}

	protected void destroyApp(boolean arg0) {
		// TODO 自动生成方法存根

	}

	protected void pauseApp() {
		// TODO 自动生成方法存根

	}

	protected void startApp() {
		if(firstLogin){
			password=new TextField("请输入密码：",null,20,TextField.PASSWORD);
			loginForm=new Form("登陆界面");
			loginForm.append(password);
			LOGIN_CMD=new Command("登陆",Command.OK,2);
			loginForm.addCommand(EXIT_CMD);
			loginForm.addCommand(LOGIN_CMD);
			loginForm.setCommandListener(this);
			firstLogin=false;
			display.setCurrent(loginForm);
		}
		else{
			mainForm();
		}
	}

	public void commandAction(Command com, Displayable dis) {
		if(com==EXIT_CMD){
			destroyApp(false);
			notifyDestroyed();
		}
		if(com==LOGIN_CMD){
			if(password.getString().equals("123")){
				mainForm();
			}
			else{
				password.setString("");
				Alert alert=new Alert("密码错误");
				alert.setString("密码错误");
				display.setCurrent(alert,loginForm);
			}
		}
		
	}

	public void commandAction(Command com, Item item) {
		for(int i=0;i<5;i++){
			for(int j=0;j<7;j++){
				if(com==CMD_OK[i][j]){
					courseForm=new CourseForm("详细信息",display,mainForm,i,j);
					display.setCurrent(courseForm);
				}
			}
		}		
	}
	
	public void mainForm(){
		if(firstTime==true){
			mainForm=new Form("课程表");
			mainForm.append("欢迎使用课程表\n");
			week = new StringItem[7];
			week[0] = new StringItem(null, "日");
			week[1] = new StringItem(null, "一");
			week[2] = new StringItem(null, "二");
			week[3] = new StringItem(null, "三");
			week[4] = new StringItem(null, "四");
			week[5] = new StringItem(null, "五");
			week[6] = new StringItem(null, "六");
			for (int i = 0; i < 7; i++) {
				mainForm.append(week[i]);
				mainForm.append(new Spacer(21, 15));
			}
			mainForm.append("\n");
			courses = new StringItem[5][7];
			for (int i = 0; i < 7; i++) {
				courses[0][i] = new StringItem(null, "12", Item.PLAIN);
				courses[1][i] = new StringItem(null, "34", Item.PLAIN);
				courses[2][i] = new StringItem(null, "56", Item.PLAIN);
				courses[3][i] = new StringItem(null, "78", Item.PLAIN);
				courses[4][i] = new StringItem(null, "90", Item.PLAIN);
			}
			CMD_OK=new Command[5][7];
			for (int i = 0; i < 5; i++) {
				for (int j = 0; j < 7; j++) {
					mainForm.append(courses[i][j]);
					CMD_OK[i][j]=new Command("查看",Command.OK,2);
					courses[i][j].setItemCommandListener(this);
					courses[i][j].setDefaultCommand(CMD_OK[i][j]);
					mainForm.append(new Spacer(20, 15));
				}
				mainForm.append("\n");
			}
			mainForm.addCommand(EXIT_CMD);
			mainForm.setCommandListener(this);
			firstTime=false;
		}
		display.setCurrent(mainForm);
	}

}