democanvas.java

来自「3D手机游戏开发实例源代码」· Java 代码 · 共 53 行

import javax.microedition.lcdui.*;
import javax.microedition.midlet.*;
import java.io.*;
public class DemoCanvas extends Canvas
{


	public DemoCanvas()
        {        

        	setFullScreenMode(true);

    
        }
        public void paint(Graphics g)
      
        {   int width=this.getWidth();
            int height=this.getHeight();
            g.setColor(0xFFFFFF);
            g.fillRect(0,0,width,height);       
        }
        protected void keyPressed(int keyCode){
        System.out.println("键盘"+getKeyName(keyCode)+"被按下，值为"+keyCode);
        switch(getGameAction(keyCode)) {
            case Canvas.DOWN:
                System.out.println("游戏动作：向下");
                break;
            case Canvas.UP:
                System.out.println("游戏动作：向上");
                break;
            case Canvas.LEFT:
                System.out.println("游戏动作：向左");
                break;
            case Canvas.RIGHT:
                System.out.println("游戏动作：向右");
                break;
            case Canvas.FIRE:
                System.out.println("游戏动作：开火");
                break;
            default:
                System.out.println("非游戏动作");
                break;             
            }
        }
        protected void keyReleased(int keyCode){
        System.out.println("键盘"+getKeyName(keyCode)+"释放");
        }
        protected void keyRepeated(int keyCode){
        System.out.println("键盘"+getKeyName(keyCode)+"被持续按下");
        }
     
}