?? playmusicdemo.java
字號:
/*
* PlayMusicDemo.java
*
* Created on 2005年5月2日, 上午12:28
*/
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import javax.microedition.media.*;
/**
*
* @author Liu Bin
* @version
*/
public class PlayMusicDemo extends MIDlet implements CommandListener{
private Display display;
private Command cmdExit = new Command("退出", Command.STOP, 1);
private List list;
//list的內容
private static final String[] items = {"播放MIDI音樂",
"播放Wave音樂",
"播放Mp3音樂",
"播放iMelody音樂",
"播放Amr音樂"
};
public PlayMusicDemo() {
list = new List("播放不同格式聲音演示", List.IMPLICIT, items, null);
list.addCommand(cmdExit);
list.setCommandListener(this);
}
public void startApp() {
display = Display.getDisplay(this);
display.setCurrent(list);
}
public void pauseApp() {
}
public void destroyApp(boolean unconditional) {
}
/**
* 命令按鈕事件
*/
public void commandAction(Command c, Displayable d) {
String label = c.getLabel();
if (label.equals("退出")) {
this.notifyDestroyed();
}
if (c == list.SELECT_COMMAND) {
switch (list.getSelectedIndex()) {
case 0:
playMIDI();
break;
case 1:
playWave();
break;
case 2:
playMp3();
break;
case 3:
playIMelody();
break;
case 4:
playAmr();
break;
}
}
}
//用于播放MIDI文件
private void playMIDI() {
try {
java.io.InputStream is = getClass().getResourceAsStream("/1.mid");
Player player = Manager.createPlayer(is, "audio/midi");
player.realize();
player.prefetch();
player.start();
} catch(Exception e) {
System.out.println("g播放MIDI音樂發生異常:" + e.toString());
}
}
//用于播放Wave文件
private void playWave() {
try {
java.io.InputStream is = getClass().getResourceAsStream("/1.wav");
Player player = Manager.createPlayer(is, "audio/x-wav");
player.realize();
player.prefetch();
player.start();
} catch(Exception e) {
System.out.println("播放Wave音樂發生異常:" + e.toString());
}
}
//用于播放Mp3文件
private void playMp3() {
try {
java.io.InputStream is = getClass().getResourceAsStream("/1.mp3");
Player player = Manager.createPlayer(is, "audio/mpeg");
player.realize();
player.prefetch();
player.start();
} catch(Exception e) {
System.out.println("播放Mp3音樂發生異常:" + e.toString());
}
}
//用于播放iMelody文件
private void playIMelody() {
try {
java.io.InputStream is = getClass().getResourceAsStream("/1.imy");
Player player = Manager.createPlayer(is, "audio/imelody");
player.realize();
player.prefetch();
player.start();
} catch(Exception e) {
System.out.println("播放iMelody音樂發生異常:" + e.toString());
}
}
//用于播放AMR文件
private void playAmr() {
try {
java.io.InputStream is = getClass().getResourceAsStream("/1.amr");
Player player = Manager.createPlayer(is, "audio/amr");
player.realize();
player.prefetch();
player.start();
} catch(Exception e) {
System.out.println("播放Amr音樂發生異常:" + e.toString());
}
}
}
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