Java 图片播放 音乐播放

import java.awt.BorderLayout; import java.awt.Dimension; import java.awt.FlowLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.io.File; import java.io.IOException; import java.net.MalformedURLException; import java.net.URL; import java.util.ArrayList; import java.util.List; import javax.media.CannotRealizeException; import javax.media.Manager; import javax.media.NoPlayerException; import javax.media.Player; import javax.swing.JButton; import javax.swing.JFileChooser; import javax.swing.JFrame; import javax.swing.JMenu; import javax.swing.JMenuBar; import javax.swing.JMenuItem; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JSlider; import javax.swing.JTextField; import javax.swing.JToolBar; import javax.swing.event.ChangeEvent; import javax.swing.event.ChangeListener; public class MainFrame extends JFrame { private final int width = 600; private final int height = 600; //图片播放 private ImagePlayer imagePlayer = new ImagePlayer(); private List<String> imageList = new ArrayList<String>(); //音频播放 private AudioPlayer audioPlayer = null; private URL[] audioURLs; private int audioIdx = 0; private ImageFileChooser imageFC; private AudioFileChooser audioFC; JTextField showVal = new JTextField("播放图片间隔为：1000ms"); JSlider slider = new JSlider(100, 2000); public MainFrame() { super(); init(); } public void init() { //组装界面 createMenuBar(); JPanel toolBar = createToolPanel(); this.add(toolBar, BorderLayout.SOUTH); this.add(new JScrollPane(imagePlayer), BorderLayout.CENTER); new Thread(imagePlayer).start(); // 设置界面 this.setTitle("FlashPlayer"); this.setPreferredSize(new Dimension(width, height)); this.setVisible(true); this.pack(); } public void createMenuBar() { JMenuBar menuBar = new JMenuBar(); JMenu menu = new JMenu("打开"); JMenuItem itemFile = new JMenuItem("打开图片"); JMenuItem itemAudio = new JMenuItem("打开背景音乐"); //加监听器 itemFile.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { imageFC = new ImageFileChooser(); int returnVal = imageFC.showOpenDialog(MainFrame.this); if (returnVal == JFileChooser.APPROVE_OPTION) { File[] files = imageFC.getSelectedFiles(); //清空，支持二次加载图片 imageList.clear(); for (File file : files) { String path = file.getPath(); imageList.add(path); } imagePlayer.setImageList(imageList); } } }); itemAudio.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { audioFC = new AudioFileChooser(); int returnVal = audioFC.showOpenDialog(MainFrame.this); if (returnVal == JFileChooser.APPROVE_OPTION) { File[] files = audioFC.getSelectedFiles(); //停止正在播放 if (audioPlayer != null) { audioPlayer.close(); } //转换成URL // 之前出现空指针错误 audioURLs = new URL[files.length]; for (int i=0; i<files.length; i++) { try { audioURLs[i] = files[i].toURI().toURL(); } catch (MalformedURLException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } } //播放 audioPlayer = new AudioPlayer(audioURLs); audioPlayer.play(); /* try { audioPlayer = Manager.createRealizedPlayer(audioURLs[0]); audioPlayer.start(); } catch (NoPlayerException | IOException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } catch (CannotRealizeException e1) { // TODO Auto-generated catch block e1.printStackTrace(); }*/ } } }); // menu.add(itemFile); menu.addSeparator(); menu.add(itemAudio); menuBar.add(menu); this.setJMenuBar(menuBar); } public JPanel createToolPanel() { JPanel panel = new JPanel(); panel.setLayout(new FlowLayout(FlowLayout.LEFT)); JToolBar toolBar = new JToolBar(); toolBar.setFloatable(false); //toolBar中增加按钮 //写一个ImagePlayerListener JButton bnPlay = new JButton("播放"); bnPlay.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent arg0) { imagePlayer.play(); audioPlayer.play(); } }); JButton bnPause = new JButton("暂停"); bnPause.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent arg0) { imagePlayer.pause(); audioPlayer.pause(); } }); JButton bnSpeedUp = new JButton("加速"); bnSpeedUp.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent arg0) { imagePlayer.speedUp(); slider.setValue(imagePlayer.interval); } }); JButton bnSlowDown = new JButton("减速"); bnSlowDown.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent arg0) { imagePlayer.slowDown(); slider.setValue(imagePlayer.interval); } }); //播放间隔 100 ms -2000ms slider.setPaintTicks(true); slider.setMajorTickSpacing(500); slider.setMinorTickSpacing(100); slider.setValue(1000); slider.addChangeListener(new ChangeListener(){ @Override public void stateChanged(ChangeEvent e) { JSlider source = (JSlider) e.getSource(); showVal.setText("播放图片间隔为：" + source.getValue() + "ms"); imagePlayer.setInterval(source.getValue()); } }); showVal.setEditable(false); JButton bnNextAudio = new JButton("下一首"); bnNextAudio.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { audioPlayer.next(); } }); toolBar.add(bnPlay); toolBar.add(bnPause); toolBar.add(bnSpeedUp); toolBar.add(bnSlowDown); toolBar.add(slider); toolBar.add(showVal); toolBar.add(bnNextAudio); panel.add(toolBar); return panel; } }