|
import javax.microedition.lcdui.Alert;
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;
import javax.microedition.media.Manager;
import javax.microedition.media.Player;
import javax.microedition.media.control.ToneControl;
import javax.microedition.midlet.MIDlet;
public class ToneMIDlet extends MIDlet implements CommandListener {
private Display mDisplay;
private List mMainScreen;
public void startApp() {
mDisplay = Display.getDisplay(this);
if (mMainScreen == null) {
mMainScreen = new List("AudioMIDlet", List.IMPLICIT);
mMainScreen.addCommand(new Command("Exit", Command.EXIT, 0));
mMainScreen.addCommand(new Command("Play", Command.SCREEN, 0));
mMainScreen.setCommandListener(this);
}
mDisplay.setCurrent(mMainScreen);
}
public void pauseApp() {
}
public void destroyApp(boolean unconditional) {
}
public void commandAction(Command c, Displayable s) {
if (c.getCommandType() == Command.EXIT)
notifyDestroyed();
else
run();
}
public void run() {
byte[] sequence = null;
sequence = new byte[] { ToneControl.VERSION, 1, ToneControl.TEMPO, 22,
ToneControl.BLOCK_START, 0, 60, 8, 62, 4, 64,
ToneControl.SET_VOLUME, 50, ToneControl.PLAY_BLOCK, 1, ToneControl.SET_VOLUME, 100,
ToneControl.PLAY_BLOCK, 0, };
try {
Player player = Manager.createPlayer(Manager.TONE_DEVICE_LOCATOR);
player.realize();
ToneControl tc = (ToneControl) player.getControl("ToneControl");
tc.setSequence(sequence);
player.start();
} catch (Exception e) {
Alert a = new Alert("Exception", e.toString(), null, null);
a.setTimeout(Alert.FOREVER);
mDisplay.setCurrent(a, mMainScreen);
}
}
}
|