drawgrbdemo.java

来自「J2ME手机游戏开发技术详解随书光盘」· Java 代码 · 共 37 行

package DrawGRB;
import javax.microedition.lcdui.*;
import javax.microedition.midlet.*;
public class DrawGRBDemo extends MIDlet implements CommandListener
{
        private Display display;
        private DrawGRBCanvas myCanvas;

        private Command  exitCmd = new Command(" 退出", Command.SCREEN, 1);

        public DrawGRBDemo()
        {
        	myCanvas = new DrawGRBCanvas();
                display = Display.getDisplay(this);

                myCanvas.addCommand(exitCmd);                                
                myCanvas.setCommandListener(this);
        }
        public void startApp()
        {
                 System.out.println(display.numAlphaLevels());
                 display.setCurrent(myCanvas);
        }
        public void pauseApp()
        {
        }
        public void destroyApp(boolean unconditional)
        {
        }
        public void commandAction(Command cmd, Displayable disp) {
        if(cmd == exitCmd){
        destroyApp(false);
        notifyDestroyed();
        }               
        }
}