jmfsound.java

《SWING HACKS》源码 作者: Joshua Marinacci,Chris Adamson 著 徐晔 译 出版: 2007年2月

import java.io.*;
import java.net.MalformedURLException;
import javax.swing.*;

import javax.media.*;

public class JMFSound extends Object
    implements ControllerListener {

    File soundFile;
    JDialog playingDialog;

    public static void main (String[] args) {
        JFileChooser chooser = new JFileChooser();
        chooser.showOpenDialog(null);
        File f = chooser.getSelectedFile();
        try {
            JMFSound s = new JMFSound (f);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public JMFSound (File f)
        throws NoPlayerException, CannotRealizeException,
               MalformedURLException, IOException {
        soundFile = f;
        // prepare a dialog to display while playing
        JOptionPane pane = new JOptionPane ("Playing " + f.getName(),
                                            JOptionPane.PLAIN_MESSAGE);
        playingDialog = pane.createDialog (null, "JMF Sound");
        playingDialog.pack();

        // get a player
        MediaLocator mediaLocator =
            new MediaLocator(soundFile.toURL());
        Player player =
            Manager.createRealizedPlayer (mediaLocator);
        player.addControllerListener (this);
        player.start();
        playingDialog.setVisible(true);
    }

    // ControllerListener implementation
    public void controllerUpdate (ControllerEvent e) {
        System.out.println (e.getClass().getName());
        if (e instanceof EndOfMediaEvent) {
            playingDialog.setVisible(false);
            System.exit (0);
        }
    }


}