music player界面

public class SoundPlayerGUI extends JFrame
implements ChangeListener, ActionListener
{
private static final String VERSION = "Version 1.0";
private static final String AUDIO_DIR = "audio";

private JList fileList;
private JSlider slider;
private JLabel infoLabel;



public static void main(String[] args)
{
    SoundPlayerGUI gui = new SoundPlayerGUI();
}


public SoundPlayerGUI()
{
    super("SoundPlayer");
    
    String[] audioFileNames = findFiles(AUDIO_DIR, null);
    makeFrame(audioFileNames);
}


private void play()
{
    String filename = (String)fileList.getSelectedValue();
    if(filename == null) {  // nothing selected
        return;
    }
    slider.setValue(0);
    boolean successful = player.play(new File(AUDIO_DIR, filename));
  
}


private void showInfo(String message)
{
    infoLabel.setText(message);
}


   

private void showAbout()
{
    JOptionPane.showMessageDialog(this, 
                "SoundPlayer\n" + VERSION,
                "About SoundPlayer", 
                JOptionPane.INFORMATION_MESSAGE);
}


private String[] findFiles(String dirName, String suffix)
{
    File dir = new File(dirName);
    if(dir.isDirectory()) {
        String[] allFiles = dir.list();
        if(suffix == null) {
            return allFiles;
        }
        else {
            List<String> selected = new ArrayList<String>();
            for(String filename : allFiles) {
                if(filename.endsWith(suffix)) {
                    selected.add(filename);
                }
            }
            return selected.toArray(new String[selected.size()]);
        }
    }
    else {
        System.out.println("");
        return null;
    }
}



public void stateChanged(ChangeEvent evt)
{
    player.seek(slider.getValue());
}



public void actionPerformed(ActionEvent evt) 
{
    JComboBox cb = (JComboBox)evt.getSource();
    String format = (String)cb.getSelectedItem();
    if(format.equals("all formats")) {
        format = null;
    }
    fileList.setListData(findFiles(AUDIO_DIR, format));
}


private void makeFrame(String[] audioFiles)
{

    
    
    JPanel contentPane = (JPanel)getContentPane();
    contentPane.setBorder(new EmptyBorder(0, 0, 0, 0));

    makeMenuBar();
    
   
    contentPane.setLayout(new BorderLayout(0, 0));

contentPane.setBackground(new Color(0,0,0));

    JPanel leftPane = new JPanel();
    {
        leftPane.setLayout(new BorderLayout(188, 1));

        String[] formats = { "all formats", ".wav", ".au", ".aif",".mp3" };

        // Create the combo box.
        JComboBox formatList = new JComboBox(formats);
        formatList.addActionListener(this);
        leftPane.add(formatList, BorderLayout.NORTH);

        // Create the scrolled list for file names
        fileList = new JList(audioFiles);
        fileList.setForeground(new Color(140,171,226));
        fileList.setBackground(new Color(0,0,0));
        fileList.setSelectionBackground(new Color(87,49,134));
        fileList.setSelectionForeground(new Color(140,171,226));
        JScrollPane scrollPane = new JScrollPane(fileList);
        scrollPane.setColumnHeaderView(new JLabel("本地歌曲"));
        leftPane.add(scrollPane, BorderLayout.CENTER);
        JButton button = new JButton(new ImageIcon("play.jpg"));
        button.setPressedIcon(new ImageIcon ("play1.jpg"));
        button.addActionListener(new ActionListener() {
                               public void actionPerformed(ActionEvent e) { play(); }
                           });
       
        slider = new JSlider(0, 100, 0);
        TitledBorder border = new TitledBorder("Seek");
        border.setTitleColor(Color.white);
        slider.setBorder(new CompoundBorder(new EmptyBorder(6, 10, 10, 10), border));
        slider.addChangeListener(this);
        slider.setBackground(Color.white);
        slider.setMajorTickSpacing(25);
        slider.setPaintTicks(true);
        JPanel toolbar = new JPanel();
        
        toolbar.setLayout(new GridLayout(2, 1));

       
      toolbar.add(button);
        toolbar.add(slider);
        leftPane.add(toolbar,BorderLayout.NORTH);
        
    }
    contentPane.add(leftPane, BorderLayout.WEST);
    JPanel picPane=new JPanel();
    {
    	JLabel pic=new JLabel(new ImageIcon("zhuomian.jpg"));
    	 picPane.add(pic, BorderLayout.CENTER);
    	contentPane.add(picPane,BorderLayout.CENTER);
  
    }

  
   JPanel centerPane = new JPanel();
    {
        centerPane.setLayout(new BorderLayout(188, 8));

        JLabel image = new JLabel(new ImageIcon("u=2786397887,625919022&fm=21&gp=0.jpg"));
        centerPane.add(image, BorderLayout.NORTH);
        centerPane.setBackground(Color.BLUE);

        infoLabel = new JLabel(new ImageIcon("zhi.jpg"));
  
       
       centerPane.add(infoLabel, BorderLayout.CENTER);

      
   
    }
    contentPane.add(centerPane, BorderLayout.EAST);

    // Create the toolbar with the buttons
  
    
    
   

    
    pack();
    
    // place this frame at the center of the screen and show
    Dimension d = Toolkit.getDefaultToolkit().getScreenSize();
    setLocation(d.width/2 - getWidth()/2, d.height/2 - getHeight()/2);
    setVisible(true);}



private void makeMenuBar()
{
    final int SHORTCUT_MASK =
        Toolkit.getDefaultToolkit().getMenuShortcutKeyMask();

    JMenuBar menubar = new JMenuBar();
    setJMenuBar(menubar);
    
    JMenu menu;
    JMenuItem item;
    
  
    menu = new JMenu("File");
    menubar.add(menu);
    
    item = new JMenuItem("Quit");
        item.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_Q, SHORTCUT_MASK));
        item.addActionListener(new ActionListener() {
                           public void actionPerformed(ActionEvent e) { quit(); }
                       });
    menu.add(item);

  ![](http://images2015.cnblogs.com/blog/906234/201605/906234-20160529200347225-1109277185.jpg)


    menu = new JMenu("Help");
    menubar.add(menu);
    
    item = new JMenuItem("About SoundPlayer...");
        item.addActionListener(new ActionListener() {
                           public void actionPerformed(ActionEvent e) { showAbout(); }
                       });
    menu.add(item);
}

}