public class SoundAlert extends MIDlet implements ItemStateListener, CommandListener { private Display display; // Reference to display object private Form fmMain; // Main form private Command cmExit; // Command to exit the MIDlet private ChoiceGroup cgSound; // Choice group
public SoundAlert() { display = Display.getDisplay(this);
// Create an exclusive (radio) choice group cgSound = new ChoiceGroup("Choose a sound", Choice.EXCLUSIVE); // Append options, with no associated images cgSound.append("Info", null); cgSound.append("Confirmation", null); cgSound.append("Warning", null); cgSound.append("Alarm", null); cgSound.append("Error", null);
cmExit = new Command("Exit", Command.EXIT, 1);
// Create Form, add components, listen for events fmMain = new Form(""); fmMain.append(cgSound); fmMain.addCommand(cmExit); fmMain.setCommandListener(this); fmMain.setItemStateListener(this); }
public void startApp() { display.setCurrent(fmMain); }
public void pauseApp() { } public void destroyApp(boolean unconditional) { }
public void commandAction(Command c, Displayable s) { if (c == cmExit) { destroyApp(false); notifyDestroyed(); } } public void itemStateChanged(Item item) { switch (cgSound.getSelectedIndex()) { case 0: AlertType.INFO.playSound(display); break;
case 1: AlertType.CONFIRMATION.playSound(display); break;
case 2: AlertType.WARNING.playSound(display); break;
case 3: AlertType.ALARM.playSound(display); break;
case 4: AlertType.ERROR.playSound(display); break; } } }
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