firmidlet.java

非常好的JAVA编程的例子

 

import java.io.IOException;
import javax.microedition.lcdui.*;
import javax.microedition.midlet.MIDlet;

public class FIRMIDlet extends MIDlet implements CommandListener
{   
    private Display display;
    private Form form;
    private Image imgSplash;
    private Command CMD_EXIT;
    private Command CMD_GO;
    private Command CMD_OPTION;
    private Command CMD_ABOUT;
    private FIRCanvas myCanvas;
    private Options options;
    private About about;
    public FIRMIDlet()
    {
        display = Display.getDisplay(this);
        
        form = new Form(null);
        try
        {
            imgSplash = Image.createImage("/splash.png");
        }
        catch(IOException _ex)
        {
            imgSplash = Image.createImage(1, 1);
        }
        form.append(imgSplash);
        CMD_EXIT = new Command("退出", 7, 1);
        CMD_GO = new Command("开局", 4, 2);
        CMD_OPTION = new Command("设置", 1, 3);
        CMD_ABOUT = new Command("关于", 5, 3);
        form.addCommand(CMD_GO);
        form.addCommand(CMD_OPTION);
        form.addCommand(CMD_ABOUT);
        form.addCommand(CMD_EXIT);
        form.setCommandListener(this);
        myCanvas = new FIRCanvas(this);
        options = new Options(this);
        about = new About(this);
    }
    public void startApp()
    {

        display.setCurrent(form);
    }
    public void pauseApp()
    {
    }
    public void destroyApp(boolean arg0)
    {
    }
    public void commandAction(Command c, Displayable s)
    {
        if(c == CMD_EXIT)
        {
            destroyApp(false);
            notifyDestroyed();
        } else
        if(c == CMD_GO)
        {
            display.setCurrent(myCanvas);
            myCanvas.setOptions(options.getBoardSize(), options.isComputerFirst(), options.getDegree());
            myCanvas.newStage();
        } else
        if(c == CMD_OPTION)
            display.setCurrent(options.getForm());
        else
        if(c == CMD_ABOUT)
            display.setCurrent(about.getForm());
    }
   public void comeBack()
    {
        display.setCurrent(form);
    }
}