蓝牙五子棋.doc

import javax.microedition.midlet.*; import javax.microedition.lcdui.*; public class BTGame extends MIDlet implements CommandListener{ private static BTGame instance; private MyCanvas mycanvas ; private ChoiceGroup choices; private Form initForm; /** Constructor */ public BTGame() { instance = this; } /** Main method */ public void startApp() { initForm = new Form(Connect 4); // Add the peer choice group String[] peerNames = { Server, Client }; choices = new ChoiceGroup(Please select peer type:, Choice.EXCLUSIVE, peerNames, null); initForm.append(choices); // Add the Exit and Play commands Command exitCommand = new Command(Exit, Command.EXIT, 0); initForm.addCommand(exitCommand); Command playCommand = new Command(Play, Command.OK, 0); initForm.addCommand(playCommand); initForm.setCommandListener(this); // Set the form as the current screen Display.getDisplay(this).setCurrent(initForm); // Display.getDisplay(this).setCurrent(displayable); } /** Handle pausing the MIDlet */ public void pauseApp() { } /** Handle destroying the MIDlet */ public void destroyApp(boolean unconditional) { } /** Quit the MIDlet */ public static void quitApp() { instance.destroyApp(true); instance.notifyDestroyed(); instance = null; } public void commandAction(Command c, Displayable s) { if (c.getCommandType() == Command.EXIT) { destroyApp(true); notifyDestroyed(); } else if (c.getCommandType() == Command.OK) { // Find out which type of peer connection is being used String name = choices.getString(choices.getSelectedIndex()); // Create the game canvas if (mycanvas == null) { mycanvas = new MyCanvas(Display.getDisplay(this), name); Command exitCommand = new Command(Exit, Command.EXIT, 0); mycanvas.addCommand(exitCommand); mycanvas.setCommandListener(this); // Start up the gameCanvas mycanvas