myhellomidlet.java

java shouji 源代码！初学者的必修课

/*
 * MyHelloMIDlet.java
 *
 * Created on December 7, 2007, 9:09 AM
 */

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

/**
 *
 * @author  niit
 * @version
 */
public class MyHelloMIDlet extends MIDlet implements  javax.microedition.lcdui.CommandListener
              {
public MyHelloMIDlet() {}

private void initialize() {
     javax.microedition.lcdui.Display.getDisplay(this).setCurrent(get_helloTextBox());
}

public void commandAction(javax.microedition.lcdui.Command command,  javax.microedition.lcdui.Displayable displayable) {
   if (displayable == helloTextBox) {
      if (command == exitCommand) {
         javax.microedition.lcdui.Display.getDisplay(this).setCurrent(null);
         destroyApp(true);
         notifyDestroyed();
      }
   }

}

private javax.microedition.lcdui.TextBox get_helloTextBox() {
   if (helloTextBox == null) {
       helloTextBox = new javax.microedition.lcdui.TextBox(null, "Test String",400, 0x0);
       helloTextBox.addCommand(get_exitCommand());
       helloTextBox.setCommandListener(this);
   }
   return helloTextBox;
}

private javax.microedition.lcdui.Command get_exitCommand() {
   if (exitCommand == null) {
       exitCommand = new javax.microedition.lcdui.Command("Exit",javax.microedition.lcdui.Command.EXIT,  1);
   }
   return exitCommand;
}

javax.microedition.lcdui.TextBox helloTextBox;
javax.microedition.lcdui.Command exitCommand;

    public void startApp() {
        initialize();
    }
    
    public void pauseApp() {
    }
    
    public void destroyApp(boolean unconditional) {
    }
}