/* * ListDemo.java * * Created on 13 ??????? 2546, 16:38 ?. */
      
        import javax.microedition.midlet.*;
        import javax.microedition.lcdui.*;
      /**
        * An example MIDlet with simple "Hello" text and an Exit command.
        * Refer to the startApp, pauseApp, and destroyApp
        * methods so see how each handles the requested transition.
        *
        * @author sup98
        * @version
        */
        public class ListDemo extends MIDlet implements CommandListener {
        
        private Command exitCommand, backCommand; 
        private Display display; // The display for this MIDlet
        private List menu, l1, l2, l3;
        
        public ListDemo() {
        display = Display.getDisplay(this);
        exitCommand = new Command("Exit", Command.EXIT, 1);
        backCommand = new Command("Back", Command.BACK,2);

        }
        
        /**
        * Start up the Hello MIDlet by creating the TextBox and associating
        * the exit command and listener.
        */
        public void startApp() {
	  menu = new List("List Types",Choice.IMPLICIT);
	  menu.append("Implicit",null);
	  menu.append("Multiple",null);
	  menu.append("Exclusive",null);
	  menu.addCommand(exitCommand);
        menu.setCommandListener(this);

	  l1 = new List("Language",Choice.IMPLICIT);
	  l1.append("Java",null);
	  l1.append("VB",null);
	  l1.append("C#",null);
	  l1.append("C++",null);
	  l1.addCommand(backCommand);
	  l1.setCommandListener(this);

	  l2 = new List("Plateform",Choice.MULTIPLE);
	  l2.append("Linux",null);
	  l2.append("Solaris",null);
	  l2.append("NT",null);
	  l2.addCommand(backCommand);
	  l2.setCommandListener(this);

	  l3 = new List("Country",Choice.EXCLUSIVE);
	  l3.append("Thailand",null);
	  l3.append("Malaysia",null);
	  l3.append("Japan",null);
	  l3.append("Korea",null);
	  l3.addCommand(backCommand);
	  l3.setCommandListener(this);
        
        display.setCurrent(menu);
        }
        
        /**
        * Pause is a no-op since there are no background activities or
        * record stores that need to be closed.
        */
        public void pauseApp() {
        }
        
        /**
        * Destroy must cleanup everything not handled by the garbage collector.
        * In this case there is nothing to cleanup.
        */
        public void destroyApp(boolean unconditional) {
        }
        
        /*
        * Respond to commands, including exit
        * On the exit command, cleanup and notify that the MIDlet has been destroyed.
        */
        public void commandAction(Command c, Displayable s) {
        if (c == exitCommand) {
        destroyApp(false);
        notifyDestroyed();
        }else if (c == backCommand){
		display.setCurrent(menu);
	  }else if (c == List.SELECT_COMMAND){
		if(s == menu){
			switch(((List) s).getSelectedIndex()){
				case 0 : display.setCurrent(l1);
					break;
				case 1 : display.setCurrent(l2);
					break;
				case 2 : display.setCurrent(l3);
					break;
			}
		}
        }

        }
        
        }