midlet5.java

这是郭克华老师的J2ME视频的源代码

package prj12_1;

import javax.microedition.lcdui.Canvas;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.Image;
import javax.microedition.lcdui.game.Sprite;
import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;

public class MIDlet5 extends MIDlet {
	private MyCanvas mc = new MyCanvas();
	private Display dis;
	protected void startApp() throws MIDletStateChangeException {
		dis = Display.getDisplay(this);
		mc.setTitle("MyCanvas");
		dis.setCurrent(mc);

	}
	protected void destroyApp(boolean arg0) throws MIDletStateChangeException {
		// TODO Auto-generated method stub

	}

	protected void pauseApp() {
		// TODO Auto-generated method stub

	}

	
	class MyCanvas extends Canvas{
		private Image img;
		public MyCanvas(){
			try{
				img = Image.createImage("/img.png");
			}catch(Exception ex){}
		}
		public void paint(Graphics g){//参数g负责在画布上画图
			g.drawImage(img, 0, 0, Graphics.TOP|Graphics.LEFT);
			g.drawRegion(img, 0, 0, img.getWidth(),img.getHeight(),
					Sprite.TRANS_ROT90,
					100,200,Graphics.TOP|Graphics.LEFT);
			
		}
	}

}