java wav播放器添加暂停并继续。
我有这个代码从播放和停止的文件夹播放wav文件。 我该如何添加暂停并继续？
它看起来像你的代码大多是代码请添加更多详细信息看起来你的代码大多是代码请添加更多详细信息看起来你的代码大多是代码请添加更多详细信息看起来你的代码大多是代码请添加更多细节
import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.event.*; import java.applet.AudioClip; import java.net.URL; public class JukeBox extends JFrame { private JComboBox musicCombo; private JButton stopButton, playButton; private AudioClip[] music; private AudioClip current; public JukeBox(String title) { super(title); getContentPane().add(new JukeBoxControls()); } public static void main(String [] args) { JukeBox myf = new JukeBox ("WAV COMBOBOX"); myf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); myf.pack(); myf.setVisible(true); } private class JukeBoxControls extends JPanel { public JukeBoxControls() { URL url1, url2, url3, url4, url5; url1 = url2 = url3 = url4 = url5 = null; try { url1 = new URL ("file", "localhost", "beep-01a.wav"); url2 = new URL ("file", "localhost", "beep-02.wav"); url3 = new URL ("file", "localhost", "beep-03.wav"); url4 = new URL ("file", "localhost", "beep-04.wav"); url5 = new URL ("file", "localhost", "beep-05.wav"); } catch (Exception exception) {} music = new AudioClip[7]; music[0] = null; music[1] = JApplet.newAudioClip (url1); music[2] = JApplet.newAudioClip (url2); music[3] = JApplet.newAudioClip (url3); music[4] = JApplet.newAudioClip (url4); music[5] = JApplet.newAudioClip (url5); JLabel titleLabel = new JLabel ("WAV COMBOBOX"); titleLabel.setAlignmentX (Component.CENTER_ALIGNMENT); String[] musicNames = {"vyberte...", "sound 1", "sound 2", "sound 3", "sound 4", "sound 5"}; musicCombo = new JComboBox (musicNames); musicCombo.setAlignmentX (Component.CENTER_ALIGNMENT); playButton = new JButton ("Play", new ImageIcon ("play.gif")); playButton.setBackground (Color.white); stopButton = new JButton ("Stop", new ImageIcon ("stop.png")); stopButton.setBackground (Color.white); JPanel buttons = new JPanel(); buttons.setLayout (new BoxLayout (buttons, BoxLayout.X_AXIS)); buttons.add (playButton); buttons.add (Box.createRigidArea (new Dimension(5,0))); buttons.add (stopButton); setPreferredSize (new Dimension (350, 200)); setLayout (new BoxLayout (this, BoxLayout.Y_AXIS)); add (Box.createRigidArea (new Dimension(0,5))); add (titleLabel); add (Box.createRigidArea (new Dimension(0,5))); add (musicCombo); add (Box.createRigidArea (new Dimension(0,5))); add (buttons); add (Box.createRigidArea (new Dimension(0,5))); musicCombo.addActionListener (new ComboListener()); stopButton.addActionListener (new ButtonListener()); playButton.addActionListener (new ButtonListener()); current = null; } } private class ComboListener implements ActionListener { public void actionPerformed (ActionEvent event) { if (current != null) current.stop(); current = music[musicCombo.getSelectedIndex()]; } } private class ButtonListener implements ActionListener { public void actionPerformed (ActionEvent event) { if (current != null) current.stop(); if (event.getSource() == playButton) if (current != null) current.play(); } } } 如果您使用javax.sound.sampled.Clip和支持API而不是java.applet.AudioClip ，您将获得对音频剪辑的更多控制，例如……
import java.awt.BorderLayout; import java.awt.Dimension; import java.awt.EventQueue; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.GridBagConstraints; import java.awt.GridBagLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.io.File; import java.io.IOException; import java.util.logging.Level; import java.util.logging.Logger; import javax.sound.sampled.AudioFormat; import javax.sound.sampled.AudioInputStream; import javax.sound.sampled.AudioSystem; import javax.sound.sampled.Clip; import javax.sound.sampled.DataLine; import javax.sound.sampled.LineEvent; import javax.sound.sampled.LineEvent.Type; import javax.sound.sampled.LineListener; import javax.sound.sampled.LineUnavailableException; import javax.sound.sampled.UnsupportedAudioFileException; import javax.swing.Action; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JTextField; import javax.swing.UIManager; import javax.swing.UnsupportedLookAndFeelException; public class SimplyPlayer { public static void main(String[] args) { new SimplyPlayer(); } public SimplyPlayer() { EventQueue.invokeLater(new Runnable() { @Override public void run() { try { UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()); } catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) { } JFrame frame = new JFrame("Testing"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setLayout(new BorderLayout()); frame.add(new TestPane()); frame.pack(); frame.setLocationRelativeTo(null); frame.setVisible(true); } }); } public class TestPane extends JPanel { private Clip clip; private JTextField audioFile; private JButton play; private JButton stop; private int lastFrame; public TestPane() { setLayout(new GridBagLayout()); audioFile = new JTextField(20); play = new JButton(">"); stop = new JButton("[]"); JPanel controls = new JPanel(); controls.add(play); controls.add(stop); GridBagConstraints gbc = new GridBagConstraints(); gbc.gridx = 0; gbc.gridy = 0; gbc.weightx = 1; gbc.fill = GridBagConstraints.HORIZONTAL; add(audioFile, gbc); gbc.gridy++; add(controls, gbc); play.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { if (clip == null) { try { loadClip(new File(audioFile.getText())); clip.start(); clip.addLineListener(new LineListener() { @Override public void update(LineEvent event) { if (event.getType().equals(Type.START)) { play.setText("||"); } else if (event.getType().equals(Type.OPEN)) { System.out.println("Open"); } else if (event.getType().equals(Type.STOP)) { play.setText(">"); } else if (event.getType().equals(Type.CLOSE)) { play.setText(">"); } } }); play.setText("||"); } catch (LineUnavailableException | IOException | UnsupportedAudioFileException ex) { ex.printStackTrace(); JOptionPane.showMessageDialog(TestPane.this, "Failed to load audio clip", "Error", JOptionPane.ERROR_MESSAGE); } } else { if (clip.isRunning()) { lastFrame = clip.getFramePosition(); clip.stop(); } else { if (lastFrame < clip.getFrameLength()) { clip.setFramePosition(lastFrame); } else { clip.setFramePosition(0); } clip.start(); } } } }); stop.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { if (clip != null) { lastFrame = 0; clip.stop(); } } }); } protected void loadClip(File audioFile) throws LineUnavailableException, IOException, UnsupportedAudioFileException { AudioInputStream audioStream = AudioSystem.getAudioInputStream(audioFile); AudioFormat format = audioStream.getFormat(); DataLine.Info info = new DataLine.Info(Clip.class, format); this.clip = (Clip) AudioSystem.getLine(info); this.clip.open(audioStream); } } }
基本上，在播放并按“暂停”按钮时， ActionListener获取当前播放帧并停止剪辑，当您单击play按钮时， ActionListener会将剪辑设置为当前帧并恢复播放
我想我有一个更简单的解决方案，不使用内部类。 您只能通过行代码创建剪辑。 我使用JAVA 1.6以便更多人可以使用代码。
这是我的课程：
MainClass：
import java.awt.EventQueue; public class MainClass { public static void main(String[] _args) { EventQueue.invokeLater(new LaunchingWindow()); } }
发布窗口：
import java.awt.BorderLayout; import javax.swing.JFrame; import javax.swing.UIManager; public class LaunchingWindow extends Thread { @Override public void run() { try { UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()); } catch (Exception _0) { } JFrame frame_ = new JFrame("Testing"); frame_.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame_.setLayout(new BorderLayout()); frame_.add(new MusicContainer()); frame_.pack(); frame_.setLocationRelativeTo(null); frame_.setVisible(true); } }
MusicContainer：
import java.awt.GridBagConstraints; import java.awt.GridBagLayout; import java.io.File; import javax.sound.sampled.AudioInputStream; import javax.sound.sampled.AudioSystem; import javax.sound.sampled.Clip; import javax.swing.JButton; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JTextField; public class MusicContainer extends JPanel { private Clip clip; private JTextField audioFile; private JButton play; private JButton stop; private int lastFrame; public MusicContainer() { setLayout(new GridBagLayout()); audioFile = new JTextField(20); play = new JButton(">"); stop = new JButton("[]"); JPanel controls_ = new JPanel(); controls_.add(play); controls_.add(stop); GridBagConstraints gbc_ = new GridBagConstraints(); gbc_.gridx = 0; gbc_.gridy = 0; gbc_.weightx = 1; gbc_.fill = GridBagConstraints.HORIZONTAL; add(audioFile, gbc_); gbc_.gridy++; add(controls_, gbc_); play.addActionListener(new PlayingMusic(this)); stop.addActionListener(new StoppingMusic(this)); } public void playMusic() { if (clip == null) { try { loadClip(new File(audioFile.getText())); clip.start(); clip.addLineListener(new MusicListener(play)); play.setText("||"); } catch (Exception _0) { _0.printStackTrace(); JOptionPane.showMessageDialog(this, "Failed to load audio clip", "Error", JOptionPane.ERROR_MESSAGE); } } else { if (clip.isRunning()) { lastFrame = clip.getFramePosition(); clip.stop(); } else { if (lastFrame < clip.getFrameLength()) { clip.setFramePosition(lastFrame); } else { clip.setFramePosition(0); } clip.start(); } } } public void stopMusic() { if (clip != null) { lastFrame = 0; clip.stop(); } } protected void loadClip(File _audioFile) throws Exception { AudioInputStream audioStream_ = AudioSystem.getAudioInputStream(_audioFile); //AudioSystem.getClip() is much easier clip = AudioSystem.getClip(); clip.open(audioStream_); } }
MusicListener：
import javax.sound.sampled.LineEvent; import javax.sound.sampled.LineListener; import javax.swing.JButton; public class MusicListener implements LineListener { private static final String START = "START"; private static final String OPEN = "OPEN"; private static final String STOP = "STOP"; private static final String CLOSE = "CLOSE"; private JButton play; public MusicListener(JButton _play) { play = _play; } @Override public void update(LineEvent _event) { String eventType_ = _event.getType().toString(); if (eventType_.equalsIgnoreCase(START)) { play.setText("||"); } else if (eventType_.equalsIgnoreCase(OPEN)) { System.out.println("Open"); } else if (eventType_.equalsIgnoreCase(STOP)) { System.out.println("close"); play.setText(">"); } else if (eventType_.equalsIgnoreCase(CLOSE)) { play.setText(">"); } } }
玩音乐 ：
import java.awt.event.ActionEvent; import java.awt.event.ActionListener; public class PlayingMusic implements ActionListener { private MusicContainer container; public PlayingMusic(MusicContainer _container) { container = _container; } @Override public void actionPerformed(ActionEvent _e) { container.playMusic(); } }
StoppingMusic：
import java.awt.event.ActionEvent; import java.awt.event.ActionListener; public class StoppingMusic implements ActionListener { private MusicContainer container; public StoppingMusic(MusicContainer _container) { container = _container; } @Override public void actionPerformed(ActionEvent _e) { container.stopMusic(); } }