J2ME

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Java

commandTest.java：源码内容

							package commandTest;
import javax.microedition.lcdui.*;
import javax.microedition.midlet.*;
public class commandTest extends MIDlet implements CommandListener
{
        private Display display;
        private commandTestCanvas myCanvas;
        private Command  exitCmd = new Command(" 退出", Command.SCREEN, 1);
        private Command  okCmd = new Command("确定", Command.SCREEN, 1);
        private Command  backCmd = new Command("后退", Command.SCREEN, 1);
        public commandTest()
        {
        	myCanvas = new commandTestCanvas();
                display = Display.getDisplay(this);
                
  
                myCanvas.addCommand(okCmd);
                myCanvas.addCommand(backCmd);
                myCanvas.addCommand(exitCmd); 
                myCanvas.setCommandListener(this);
        }  
        public void startApp()
        {
                 display.setCurrent(myCanvas);
        }
        public void pauseApp()
        {
        }
        public void destroyApp(boolean unconditional)
        {
        }
        public void commandAction(Command cmd, Displayable disp) {
        System.out.println("command");
        if(cmd == exitCmd){
        destroyApp(false);
        notifyDestroyed();
        }               
        }
}

						