Accessing Commands : Event Command « J2ME « Java

Accessing Commands

/*--------------------------------------------------
* AccessingCommands.java
*
* Example from the book:     Core J2ME Technology
* Copyright John W. Muchow   http://www.CoreJ2ME.com
* You may use/modify for any non-commercial purpose
*-------------------------------------------------*/
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;

public class AccessingCommands extends MIDlet implements CommandListener
{
  private Display display;      // Reference to Display object
  private Form fmMain;         // A Form  
  private Command cmExit;      // A Command to exit the MIDlet

  public AccessingCommands()
  {
    display = Display.getDisplay(this);

    cmExit = new Command("Exit", Command.EXIT, 1);

    fmMain = new Form("Core J2ME");
    fmMain.addCommand(cmExit);
    fmMain.setCommandListener(this);
  }

  // Called by application manager to start the MIDlet.
  public void startApp()
  {
    display.setCurrent(fmMain);
  }

  // A required method
  public void pauseApp()
  { }

  // A required method
  public void destroyApp(boolean unconditional)
  { }

  // Check to see if our Exit command was selected
  public void commandAction(Command c, Displayable s)
  {
    if (c == cmExit)
    {
      destroyApp(false);
      notifyDestroyed();
    }
  }
}

1.	Simple Command Demo
2.	Commander
3.	Various Event
4.	Commands, Items, and Event Processing
5.	Api concepts Refer to the startApp pauseApp, and destroyApp
6.	An example MIDlet with simple Hello text and an Exit command
7.	Online Help
8.	A first MIDlet with simple text and a few commands.
9.	Many Commands
10.	Mapping Commands
11.	Capture Item Events
12.	A quick sample of graphics, commands, and event handling.

Accessing Commands : Event Command « J2ME « Java

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