/* * @(#)DemoMIDlet.java	1.1 04/04/24 * * Copyright (c) 2000-2004 Sun Microsystems, Inc. All rights reserved. * PROPRIETARY/CONFIDENTIAL * Use is subject to license terms */package example.bluetooth.demo;import javax.microedition.midlet.MIDlet;import javax.microedition.lcdui.Command;import javax.microedition.lcdui.CommandListener;import javax.microedition.lcdui.Display;import javax.microedition.lcdui.Displayable;import javax.microedition.lcdui.List;/** * Contains the Bluetooth API demo, that allows to download * the specific images from the other devices. * * @author Vladimir K. Beliaev * @version 1.1, 04/24/04 */public final class DemoMIDlet extends MIDlet implements CommandListener {    /** The messages are shown in this demo this amount of time. */    static final int ALERT_TIMEOUT = 2000;    /** Soft button for exiting the demo. */    private final Command EXIT_CMD = new Command("Exit", Command.EXIT, 2);    /** Soft button for launching a client or sever. */    private final Command OK_CMD = new Command("Ok", Command.SCREEN, 1);    /** A list of menu items */    private static final String[] elements = { "Server", "Client" };    /** A menu list instance */    private final List menu = new List("Bluetooth Demo", List.IMPLICIT,            elements, null);    /** A GUI part of server that publishes images. */    private GUIImageServer imageServer;    /** A GUI part of client that receives image from client */    private GUIImageClient imageClient;    /**     * Constructs main screen of the MIDlet.     */    public DemoMIDlet() {        menu.addCommand(EXIT_CMD);        menu.addCommand(OK_CMD);        menu.setCommandListener(this);    }    /**     * Creates the demo view and action buttons.     */    public void startApp() {        show();    }    /**     * Destroys the application.     */    protected void destroyApp(boolean unconditional) {        if (imageServer != null) {            imageServer.destroy();        }        if (imageClient != null) {            imageClient.destroy();        }    }    /**     * Does nothing. Redefinition is required by MIDlet class.     */    protected void pauseApp() {}    /**     * Responds to commands issued on "client or server" form.     *     * @param c command object source of action     * @param d screen object containing actioned item     */    public void commandAction(Command c, Displayable d) {        if (c == EXIT_CMD) {            destroyApp(true);            notifyDestroyed();            return;        }        switch (menu.getSelectedIndex()) {        case 0:            imageServer = new GUIImageServer(this);            break;        case 1:            imageClient = new GUIImageClient(this);            break;        default:            System.err.println("Unexpected choice...");            break;        }    }    /** Shows main menu of MIDlet on the screen. */    void show() {        Display.getDisplay(this).setCurrent(menu);    }    /**     * Returns the displayable object of this screen -     * it is required for Alert construction for the error     * cases.     */    Displayable getDisplayable() {        return menu;    }} // end of class 'DemoMIDlet' definition