import Java.io.*;
import javax.microedition.io.*;
import javax.microedition.lcdui.*;
import javax.microedition.midlet.*;
import javax.microedition.media.*;
import javax.microedition.media.control.*;
public class ToneMIDlet extends MIDlet implements CommandListener {
private final static String kSoundOfMusic = "Sound of Music";
private final static String kQuandoMenVo = "Quando men vo";
private final static String kTwinkle = "Twinkle number VII";
private Display mDisplay;
private List mMainScreen;
public void startApp() {
mDisplay = Display.getDisplay(this);
if (mMainScreen == null) {
mMainScreen = new List("AudioMIDlet", List.IMPLICIT);
mMainScreen.append(kSoundOfMusic, null);
mMainScreen.append(kQuandoMenVo, null);
mMainScreen.append(kTwinkle, null);
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() {
String selection = mMainScreen.getString(
mMainScreen.getSelectedIndex());
byte[] sequence = null;
if (selection.equals(kSoundOfMusic)) {
sequence = new byte[] {
ToneControl.VERSION, 1,
67, 16, // The
69, 16, // hills
67, 8, // are
65, 8, // a -
64, 48, // live
62, 8, // with
60, 8, // the
59, 16, // sound
57, 16, // of
59, 32, // mu -
59, 32 // sic
};
}
else if (selection.equals(kQuandoMenVo)) {
sequence = new byte[] {
ToneControl.VERSION, 1,
ToneControl.TEMPO, 22,
ToneControl.RESOLUTION, 96,
64, 48, ToneControl.SILENCE, 8, 52, 4, 56, 4, 59, 4, 64, 4,
63, 48, ToneControl.SILENCE, 8, 52, 4, 56, 4, 59, 4, 63, 4,
61, 72,
ToneControl.SILENCE, 12, 61, 12,
63, 12, 66, 2, 64, 10, 63, 12, 61, 12,
64, 12, 57, 12, 57, 48,
ToneControl.SILENCE, 12, 59, 12,
61, 12, 64, 2, 63, 10, 61, 12, 59, 12,
63, 12, 56, 12, 56, 48,
};
}
else if (selection.equals(kTwinkle)) {
sequence = new byte[] {
ToneControl.VERSION, 1,
ToneControl.TEMPO, 22,
ToneControl.BLOCK_START, 0,
60, 8, 62, 4, 64, 4, 65, 4, 67, 4, 69, 4, 71, 4,
72, 4, 74, 4, 76, 4, 77, 4, 79, 4, 81, 4, 83, 4, 84, 4,
83, 4, 81, 4, 80, 4, 81, 4, 86, 4, 84, 4, 83, 4, 81, 4,
81, 4, 79, 4, 78, 4, 79, 4, 60, 4, 79, 4, 88, 4, 79, 4,
57, 4, 77, 4, 88, 4, 77, 4, 59, 4, 77, 4, 86, 4, 77, 4,
56, 4, 76, 4, 86, 4, 76, 4, 57, 4, 76, 4, 84, 4, 76, 4,
53, 4, 74, 4, 84, 4, 74, 4, 55, 4, 74, 4, 83, 4, 74, 4,
84, 16, ToneControl.SILENCE, 16,
ToneControl.BLOCK_END, 0,
ToneControl.BLOCK_START, 1,
79, 4, 84, 4, 88, 4, 86, 4, 84, 4, 83, 4, 81, 4, 79, 4,
77, 4, 76, 4, 74, 4, 72, 4, 71, 4, 69, 4, 67, 4, 65, 4,
64, 8, 76, 8, 77, 8, 78, 8,
79, 12, 76, 4, 74, 8, ToneControl.SILENCE, 8,
ToneControl.BLOCK_END, 1,
ToneControl.SET_VOLUME, 100, ToneControl.PLAY_BLOCK, 0,
ToneControl.SET_VOLUME, 50, ToneControl.PLAY_BLOCK, 0,
ToneControl.SET_VOLUME, 100, ToneControl.PLAY_BLOCK, 1,
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);
}
}
}
（出处：http://www.knowsky.com）