//动画的精灵同时也在运动，把一个连续的图片分成几个等分部分，
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.Image;
import javax.microedition.lcdui.game.GameCanvas;
import javax.microedition.lcdui.game.Sprite;
import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;

public class MIDlet4 extends MIDlet {
    private MyGameCanvas mgc=new MyGameCanvas();
    private Display dis;

    public MIDlet4() {
        
    }
    protected void startApp() throws MIDletStateChangeException {
        dis=Display.getDisplay(this);
        dis.setCurrent(mgc);

    }

    protected void pauseApp() {
        

    }
    protected void destroyApp(boolean arg0) throws MIDletStateChangeException {
        

    }
    class MyGameCanvas extends GameCanvas implements Runnable{
        private Image img;
        private Sprite sp;
        private Graphics gra;
        private boolean RUN=true;
        public MyGameCanvas(){
            super(true);
            gra=this.getGraphics();
            try{
                img=Image.createImage("/donghua.png");//放入要切割的图片
                sp=new Sprite(img,img.getWidth()/4,img.getHeight());            
            }catch(Exception ex){
                ex.printStackTrace();
                    }
            new Thread(this).start();
        }
        public void run(){
            while(RUN){
                try{
                                              //清屏
                    gra.setColor(255,255,255);
                    gra.fillRect(0, 0, this.getWidth(), this.getHeight());

                    sp.paint(gra);
                    this.flushGraphics();//缓冲区画
                    
                    sp.move(1, 1);//移动
                    sp.nextFrame();//动画效果
                    
                    Thread.currentThread().sleep(100);
                }catch(Exception ex){
                    ex.printStackTrace();
                        }
            }
        }
    }




}

img = Image.createImage("/donghua.png"); // 放入要切割的图片
sp = new Sprite(img, img.getWidth() / 4, img.getHeight());