doggymidlet.java

Sun公司的J2ME官方例程若干

/*
 * Copyright (c) 2000-2001 Sun Microsystems, Inc. All Rights Reserved.
 */

package examples.animation;

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

/**
 * A MIDlet that displays the Doggy animation.
 *
 * @author Mark A. Patel - Motorola, Inc.
 * @author Roger Riggs - Sun Microsystems, Inc.
 **/
public class DoggyMIDlet extends MIDlet implements CommandListener {
    Command cmdExit;
    /**
     * Constructs a new DoggyMIDlet
     **/
    public DoggyMIDlet() {
        cmdExit = new Command("Exit", Command.EXIT, 1);
    }
    
    /**
     * Starts the app by creating a new Doggy instance and displaying it
     **/
    protected void startApp() throws MIDletStateChangeException {
        Doggy d;

        d = new Doggy();

        d.addCommand(cmdExit);
        d.setCommandListener(this);
        
        Display.getDisplay(this).setCurrent(d);
	
    }
    
    protected void pauseApp() {
    }
    
    protected void destroyApp(boolean unconditional)
	throws MIDletStateChangeException {
    }
    
    public void commandAction(Command c, Displayable d) {
        if (c == cmdExit) {
            try {
                destroyApp(false);
            } catch (Exception e) {}
            notifyDestroyed();
        }
    }
}