這是我的健全課。在Java中啓動和停止音樂文件?
public class Sounds extends Thread {
private String filename;
private Position curPosition;
private final int EXTERNAL_BUFFER_SIZE = 524288;
enum Position {
LEFT, RIGHT, NORMAL
};
public Sounds(String wavFile) {
filename = wavFile;
curPosition = Position.NORMAL;
}
public Sounds(String wavfile, Position p) {
filename = wavfile;
curPosition = p;
}
public void run() {
File soundFile = new File(filename);
if (!soundFile.exists()) {
System.err.println(".wav file not found: " + filename);
return;
}
AudioInputStream audioInputStream = null;
try {
audioInputStream = AudioSystem.getAudioInputStream(soundFile);
} catch (UnsupportedAudioFileException e1) {
e1.printStackTrace();
return;
} catch (IOException e1) {
e1.printStackTrace();
return;
}
AudioFormat format = audioInputStream.getFormat();
SourceDataLine auline = null;
DataLine.Info info = new DataLine.Info(SourceDataLine.class, format);
try {
auline = (SourceDataLine) AudioSystem.getLine(info);
auline.open(format);
} catch (LineUnavailableException e) {
e.printStackTrace();
return;
} catch (Exception e) {
e.printStackTrace();
return;
}
if (auline.isControlSupported(FloatControl.Type.PAN)) {
FloatControl pan = (FloatControl) auline
.getControl(FloatControl.Type.PAN);
if (curPosition == Position.RIGHT)
pan.setValue(1.0f);
else if (curPosition == Position.LEFT)
pan.setValue(-1.0f);
}
auline.start();
int nBytesRead = 0;
byte[] abData = new byte[EXTERNAL_BUFFER_SIZE];
try {
while (nBytesRead != -1) {
nBytesRead = audioInputStream.read(abData, 0, abData.length);
if (nBytesRead >= 0)
auline.write(abData, 0, nBytesRead);
}
} catch (IOException e) {
e.printStackTrace();
return;
} finally {
auline.drain();
auline.close();
}
}
}
這是我的ActionListener,當用戶單擊按鈕時我想停止音樂。音樂在啓動時播放。
btnSound.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
btnSound.setVisible(false);
btnNoSound.setVisible(true);
new Sounds("Sounds/MenuMusic.wav").end();
}
});
我可以讓音樂播放得很好,但我無法弄清楚如何阻止它。我嘗試使用.stop()和.end(),但我被告知他們已被棄用。任何人有任何想法我可以做到這一點?謝謝。
'新的聲音(「聽起來/ MenuMusic.wav」)結束();'因爲這不是**正在播放的'Sounds'的實例**,它什麼都不會實現。該代碼需要引用**原始的'聲音'對象。** –