TextBox: addCommand(Command cmd) : TextBox « javax.microedition.lcdui « Java by API

1. Java by API
2. javax.microedition.lcdui
3. TextBox

TextBox: addCommand(Command cmd)

    


/* License
 * 
 * Copyright 1994-2004 Sun Microsystems, Inc. All Rights Reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
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 *  * Redistribution of source code must retain the above copyright notice,
 *      this list of conditions and the following disclaimer.
 * 
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 *      this list of conditions and the following disclaimer in the
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 * Neither the name of Sun Microsystems, Inc. or the names of contributors
 * may be used to endorse or promote products derived from this software
 * without specific prior written permission.
 *  
 * This software is provided "AS IS," without a warranty of any kind. ALL
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 * ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
 * OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN MICROSYSTEMS, INC. ("SUN")
 * AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE
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import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.TextBox;
import javax.microedition.midlet.MIDlet;

// A first MIDlet with simple text and a few commands.
public class Main extends MIDlet implements CommandListener {

  // The exit, info, and buy commands
  private Command exitCommand;
  private Command infoCommand;
  private Command buyCommand;

  // The display for this MIDlet
  private Display display;

  public Main() {
    display = Display.getDisplay(this);
    exitCommand = new Command("Exit", Command.SCREEN, 1);
    infoCommand = new Command("Info", Command.SCREEN, 2);
    buyCommand = new Command("Buy", Command.SCREEN, 2);
  }

  // Start the MIDlet by creating the TextBox and
  // associating the exit command and listener.
  public void startApp() {
    TextBox t = new TextBox("FirstMIDlet", "Welcome to MIDP Programming", 256,
        0);
    t.addCommand(exitCommand);
    t.addCommand(infoCommand);
    t.addCommand(buyCommand);
    t.setCommandListener(this);
    display.setCurrent(t);
  }

  // Pause is a no-op because there are no background
  // activities or record stores to be closed.
  public void pauseApp() {
  }

  // Destroy must cleanup everything not handled
  // by the garbage collector.
  // In this case there is nothing to cleanup.
  public void destroyApp(boolean unconditional) {
  }

  // Respond to commands. Here we are only implementing
  // the exit command. In the exit command, cleanup and
  // notify that the MIDlet has been destroyed.
  public void commandAction(Command c, Displayable s) {
    if (c == exitCommand) {
      destroyApp(false);
      notifyDestroyed();
    }
  }
}

   
    
    
    
  

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