midlet1.java

这是郭克华老师的J2ME视频的源代码

package prj13_1;

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

public class MIDlet1 extends MIDlet {
	private MyCanvas mc = new MyCanvas();
	private Display dis;
	protected void startApp() throws MIDletStateChangeException {
		dis = Display.getDisplay(this);
		mc.setTitle("按键画布");
		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{
		public void paint(Graphics g){
			
		}
		protected  void keyPressed(int keyCode) {//按键按下,自动执行
			System.out.println("keyPressed" + keyCode);
			System.out.println(this.getGameAction(keyCode));
		}
		protected  void keyReleased(int keyCode) {//按键释放,自动执行
			System.out.println("keyReleased" + keyCode);
		}
		protected  void keyRepeated(int keyCode)  {//按键一直按着,自动执行
			System.out.println("keyRepeated" + keyCode);
		}

	}
	

}