J2ME游戏开发之按钮事件

package com.sliw.graphics;

import javax.microedition.lcdui.Canvas;
import javax.microedition.lcdui.Graphics;

public class KeyEventCanvas extends Canvas{

    public static final int KEY_UP = -1;
    public static final int KEY_DOWN = -2;
    public static final int KEY_LEFT = -3;
    public static final int KEY_RIGHT = -4;
    public static final  int mkey0 = 48;
    public static final  int mkey1 = 49;
    public static final  int mkey2 = 50;
    public static final  int mkey3 = 51;
    public static final  int mkey4 = 52;    
    public static final  int mkey5 = 53;
    public static final  int mkey6 = 54;
    public static final  int mkey7 = 55;
    public static final  int mkey8 = 56;
    public static final  int mkey9 = 57;
    
    
    
    protected void paint(Graphics arg0) {
        // TODO Auto-generated method stub
        
    }

    /**
     *  键按下时的操作
     */
    protected void keyPressed(int keyCode) {
        // TODO Auto-generated method stub
        System.out.println("keyCode=" + keyCode);
        super.keyPressed(keyCode);
    }
    
    /**
     *  按键释放时的操作
     */
    protected void keyReleased(int keyCode) {
        // TODO Auto-generated method stub
        super.keyReleased(keyCode);
    }
}