Java小程序播放多个.wav文件

Question

你好我正在尝试创建一个简单的游戏，现在我正在尝试添加几首歌曲在游戏过程中在后台播放，可以根据玩家的意愿停止和跳过。似乎我到处都看不到示例代码的工作。唯一可行的示例只能循环播放一个文件。

public void loadmedia ()
{
    song1 = getAudioClip (getCodeBase (), "song1.au");
    song1.play ();

    song2 = getAudioClip (getCodeBase (), "song2.au");
            song2.play ();
}

歌曲 1 会正常播放，但歌曲 2 什么也不做，即使我用按钮告诉歌曲 1 停止并播放歌曲 2。

Answer 1

什么时候需要换背景歌曲？或者在歌曲 1 结束后，歌曲 2 开始？抱歉，我可以将其添加为评论，因为我的声誉 < 50 此代码供您在组合框中选择几首歌曲。试试看。如果它不适合你。再给我问题:)

希望你喜欢！

import java.applet.AudioClip;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.net.URL;
import java.net.MalformedURLException;
import java.awt.GridBagLayout;

public class SoundApplication extends JPanel
                          implements ActionListener,
                                     ItemListener {
SoundList soundList;
String auFile = "spacemusic.au";
String aiffFile = "flute+hrn+mrmba.aif";
String midiFile = "trippygaia1.mid";
String rmfFile = "jungle.rmf";
String wavFile = "bottle-open.wav";
String chosenFile;

AudioClip onceClip, loopClip;
URL codeBase;

JComboBox formats;
JButton playButton, loopButton, stopButton;
JLabel status;

boolean looping = false;

public SoundApplication() {
    String [] fileTypes = {auFile,
                           aiffFile,
                           midiFile,        
                           rmfFile,
                           wavFile};
    formats = new JComboBox(fileTypes);
    formats.setSelectedIndex(0);
    chosenFile = (String)formats.getSelectedItem();
    formats.addItemListener(this);

    playButton = new JButton("Play");
    playButton.addActionListener(this);

    loopButton = new JButton("Loop");
    loopButton.addActionListener(this);

    stopButton = new JButton("Stop");
    stopButton.addActionListener(this);
    stopButton.setEnabled(false);

    status = new JLabel(
                "Click Play or Loop to play the selected sound file.");

    JPanel controlPanel = new JPanel();
    controlPanel.add(formats);
    controlPanel.add(playButton);
    controlPanel.add(loopButton);
    controlPanel.add(stopButton);           

    JPanel statusPanel = new JPanel();
    statusPanel.add(status);

    add(controlPanel);
    add(statusPanel);

    startLoadingSounds();
}

public void itemStateChanged(ItemEvent e){
    chosenFile = (String)formats.getSelectedItem();
    soundList.startLoading(chosenFile);
}

void startLoadingSounds() {
    //Start asynchronous sound loading.
    try {
        codeBase = new URL("file:" + System.getProperty("user.dir") + "/");
    } catch (MalformedURLException e) {
        System.err.println(e.getMessage());
    }
    soundList = new SoundList(codeBase);
    soundList.startLoading(auFile);
    soundList.startLoading(aiffFile);
    soundList.startLoading(midiFile);
    soundList.startLoading(rmfFile);
    soundList.startLoading(wavFile);
}

public void stop() {
    onceClip.stop();        //Cut short the one-time sound.
    if (looping) {
        loopClip.stop();    //Stop the sound loop.
    }
}    

public void start() {
    if (looping) {
        loopClip.loop();    //Restart the sound loop.
    }
}    

public void actionPerformed(ActionEvent event) {
    //PLAY BUTTON
    Object source = event.getSource();
    if (source == playButton) {
        //Try to get the AudioClip.
        onceClip = soundList.getClip(chosenFile);
        stopButton.setEnabled(true);
        onceClip.play();     //Play it once.
        status.setText("Playing sound " + chosenFile + ".");
        if (onceClip == null) {
            status.setText("Sound " + chosenFile + " not loaded yet.");
        }
        return;
    }

    //START LOOP BUTTON
    if (source == loopButton) {
        loopClip = soundList.getClip(chosenFile);

        looping = true;
        loopClip.loop();     //Start the sound loop.
        loopButton.setEnabled(false); //Disable start button.
        stopButton.setEnabled(true);
        status.setText("Playing sound " + chosenFile + " continuously.");
        if (loopClip == null) {
            status.setText("Sound " + chosenFile + " not loaded yet.");
        }
        return;
    }

    //STOP LOOP BUTTON
    if (source == stopButton) {
        if (looping) {
            looping = false;
            loopClip.stop();    //Stop the sound loop.
            loopButton.setEnabled(true); //Enable start button.
        } else if (onceClip != null) {
            onceClip.stop();
        }
        stopButton.setEnabled(false);
        status.setText("Stopped playing " + chosenFile + ".");
        return;
    }
}

public static void main(String s[]) {
    WindowListener l = new WindowAdapter() {
        public void windowClosing(WindowEvent e) {System.exit(0);}
    };
    JFrame f = new JFrame("SoundApplication");
    f.addWindowListener(l);
    f.getContentPane().add(new SoundApplication());
    f.setSize(new Dimension(400,100));
    f.show();
}

}

Answer 2

我找到了一个有效的答案，非常感谢所有试图帮助我的人，我最终使用了音频流和输入流。

定义我的输入流：

private AudioStream as;

当应用程序启动时以及按下下一首歌曲按钮时调用的方法来更改歌曲

public void musicconfig ()
{
    try
    {
        if (mutestate == false)
        {
            AudioPlayer.player.stop (as);
            InputStream in = new FileInputStream (filename [count]);
            as = new AudioStream (in);
            AudioPlayer.player.start (as);
        }
    }

    catch (IOException b)
    {
        b.printStackTrace ();
    }
    count++;

    if (count == 12)
    {
        count = 1;
    }
}

在应用首次运行时设置我的歌曲列表数组

public void mediaload ()
{
    filename [1] = "song1.wav";
    filename [2] = "song2.wav";
    filename [3] = "song3.wav";
    filename [4] = "song4.wav";
    filename [5] = "song5.wav";
    filename [6] = "song6.wav";
    filename [7] = "song7.wav";
    filename [8] = "song8.wav";
    filename [9] = "song9.wav";
    filename [10] = "song10.wav";
    filename [11] = "song11.wav";
}

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