f02ffec7c99a001b1749bf9d1f5ba572

《J2ME实用教程》 源文件下载 本书没有仅仅局限于J2ME单机游戏的开发

import javax.microedition.lcdui.*;
import javax.microedition.midlet.MIDlet;


public class CustomButtonDemo extends MIDlet implements CommandListener {

    private final static Command CMD_EXIT =
	    new Command("Exit", Command.EXIT, 1);
    private Display display;

    private Form mainForm;
    
    public CustomButtonDemo() {
      
        mainForm = new Form("Custom Item");
    }

    protected void startApp() {
       
            display = Display.getDisplay(this);

            mainForm.append(new TextField("Upper Item", null, 10, 0));
            mainForm.append(new CustomButton("", Display.getDisplay(this)));
            mainForm.append(new TextField("Lower Item", null, 10, 0));
            mainForm.addCommand(CMD_EXIT);
            mainForm.setCommandListener(this);
            
        display.setCurrent(mainForm);
    }

    public void commandAction(Command c, Displayable d) {
        if (c == CMD_EXIT) {
            destroyApp(false);
            notifyDestroyed();
        }
    }

    protected void destroyApp(boolean unconditional) {
    }

    protected void pauseApp() {
    }
}