Question

您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。似乎无处不在我看起来似乎无法使示例代码工作。并且唯一可行的示例只能在循环中播放一个文件。

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

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

song1将正常播放但是song2将无效，即使我通过按钮告诉歌曲1停止播放歌曲2.

Answer 1

当您需要更改背景歌曲时？或者在歌曲1完成后，歌曲2开始？抱歉，我可以将其添加为评论，因为我的声誉＆lt; 50 这段代码可供您在组合框中选择几首歌曲。试试看。如果它不适合你。再次问我这个问题：）

希望你喜欢它！

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

我找到了一个合适的答案，非常感谢那些试图帮助我的人，我最终使用了音频流和输入流。

定义我的输入流：

private AudioStream as;

在应用程序启动时以及按下下一首歌曲按钮时调用的方法更改歌曲

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";
}

Java applet播放多个.wav文件

2 个答案: