.gif图像不会将其添加到JTabbed窗格

我有一个JFrame。 在那我有两个容器，即两个JPanel。 一个小组拥有一个图像。 另外还有一个JButton。 然后这两个被添加到JTabbedPane。

我的问题是使用一个.gif图像的图像变得静态的任何其他正常的.jpg图像。 任何人都可以帮助我一些更多的想法？

这是我的代码：

import java.awt.Component; import java.awt.Dimension; import java.awt.Frame; import java.awt.Graphics; import java.awt.GridBagLayout; import java.awt.GridLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.image.BufferedImage; import java.io.IOException; import java.net.ServerSocket; import java.net.Socket; import java.net.URL; import java.net.UnknownHostException; import javax.imageio.ImageIO; import javax.imageio.stream.ImageInputStream; import javax.swing.Icon; import javax.swing.ImageIcon; import javax.swing.JButton; import javax.swing.JDesktopPane; import javax.swing.JFrame; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JTabbedPane; import javax.swing.SwingUtilities; import javax.swing.UIManager; import javax.swing.UnsupportedLookAndFeelException; import javax.swing.UIManager.LookAndFeelInfo; public class ICLOUD implements ActionListener { private BufferedImage bg; JButton b1; private Object frame1; JFrame frame2 = new JFrame(); JDesktopPane desktop = new JDesktopPane(); public ICLOUD() { try { URL url = this.getClass().getResource("anigif.gif"); bg = ImageIO.read(url); } catch (IOException ex) { } JPanel tabPanel = new JPanel(new GridBagLayout()) { @Override protected void paintComponent(Graphics g) { super.paintComponent(g); g.drawImage(bg, 0, 0, getWidth(), getHeight(), this); } @Override public Dimension getPreferredSize() { return new Dimension(400, 300); } }; JPanel buttons = new JPanel(new GridLayout(4, 1, 15, 15)); buttons.setOpaque(false); ImageIcon icon5 = new ImageIcon(ICLOUD.class.getResource("hi.jpg")); b1=new JButton("Hello"); buttons.add(b1); tabPanel.add(buttons); JTabbedPane tabPane = new JTabbedPane(); tabPane.addTab(null,icon5, tabPanel); JFrame frame = new JFrame("I-CLOUD"); b1.setVisible(true); frame.setContentPane(tabPane); frame.pack(); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setLocationByPlatform(true); frame.setVisible(true); } public static void main(String[] args) { try { for (LookAndFeelInfo info : UIManager.getInstalledLookAndFeels()) { if ("Nimbus".equals(info.getName())) { UIManager.setLookAndFeel(info.getClassName()); break; } } } catch (Exception e) { } ICLOUD r=new ICLOUD(); } @Override public void actionPerformed(ActionEvent e) { // TODO Auto-generated method stub } } 

Answer 1

让我来certificate你正在挖掘的洞

你可以做…

 BufferedImage img = ImageIO.read(this.getClass().getResource("anigif.gif")); ImageIcon icon = new ImageIcon(img); JLabel label = new JLabel(icon); add(label); 

或者你可以做…

现在，这是非常不足的，只是为了举例的目的。 它不支持处理方法或优化的GIF …所以你可以开始想象做这项工作将需要额外的工作量…很多…

 import java.awt.BorderLayout; import java.awt.Dimension; import java.awt.EventQueue; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.image.BufferedImage; import java.io.IOException; import java.io.InputStream; import java.net.URL; import java.util.ArrayList; import java.util.Iterator; import java.util.List; import javax.imageio.ImageIO; import javax.imageio.ImageReader; import javax.imageio.metadata.IIOMetadata; import javax.imageio.stream.ImageInputStream; import javax.swing.JComponent; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.Timer; import javax.swing.UIManager; import javax.swing.UnsupportedLookAndFeelException; import org.w3c.dom.NamedNodeMap; import org.w3c.dom.Node; import org.w3c.dom.NodeList; public class PlayAnimatedGif { public static void main(String[] args) { new PlayAnimatedGif(); } public PlayAnimatedGif() { 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 AnimatedGif ag; public TestPane() { URL url = getClass().getResource("/playanimatedgif/ajax-loader.gif"); try { ag = new AnimatedGif(this, url); } catch (IOException ex) { ex.printStackTrace(); } ag.play(); } @Override public Dimension getPreferredSize() { return new Dimension(200, 200); } @Override protected void paintComponent(Graphics g) { super.paintComponent(g); Graphics2D g2d = (Graphics2D) g.create(); BufferedImage currentFrame = ag.getCurrentFrame(); if (currentFrame != null) { int x = (getWidth() - currentFrame.getWidth()) / 2; int y = (getHeight() - currentFrame.getHeight()) / 2; g2d.drawImage(currentFrame, x, y, this); } g2d.dispose(); } } public static class AnimatedGif { public enum DisposalMethod { RESTORE_TO_BACKGROUND, RESTORE_TO_PREVIOUS, DO_NOT_DISPOSE, UNSPECIFIED; public static DisposalMethod find(String text) { DisposalMethod dm = UNSPECIFIED; switch (text) { case "restoreToBackgroundColor": dm = RESTORE_TO_BACKGROUND; break; } return dm; } } private List<ImageFrame> frames; private int frame; private Timer playTimer; private JComponent player; protected AnimatedGif(JComponent value) { this.player = value; frames = new ArrayList<>(25); playTimer = new Timer(0, new ActionListener() { @Override public void actionPerformed(ActionEvent e) { frame++; if (frame >= frames.size()) { frame = 0; } player.repaint(); playTimer.setDelay(frames.get(0).getGraphicControlExtension().getDelayTime()); } }); } public AnimatedGif(JComponent player, URL url) throws IOException { this(player); try (InputStream is = url.openStream(); ImageInputStream stream = ImageIO.createImageInputStream(is)) { Iterator readers = ImageIO.getImageReaders(stream); if (!readers.hasNext()) { throw new RuntimeException("no image reader found"); } ImageReader reader = (ImageReader) readers.next(); reader.setInput(stream); // don't omit this line! int n = reader.getNumImages(true); // don't use false! System.out.println("numImages = " + n); for (int i = 0; i < n; i++) { BufferedImage image = reader.read(i); ImageFrame imageFrame = new ImageFrame(image); IIOMetadata imd = reader.getImageMetadata(i); Node tree = imd.getAsTree("javax_imageio_gif_image_1.0"); NodeList children = tree.getChildNodes(); for (int j = 0; j < children.getLength(); j++) { Node nodeItem = children.item(j); NamedNodeMap attr = nodeItem.getAttributes(); switch (nodeItem.getNodeName()) { case "ImageDescriptor": ImageDescriptor id = new ImageDescriptor( getIntValue(attr.getNamedItem("imageLeftPosition")), getIntValue(attr.getNamedItem("imageTopPosition")), getIntValue(attr.getNamedItem("imageWidth")), getIntValue(attr.getNamedItem("imageHeight")), getBooleanValue(attr.getNamedItem("interlaceFlag"))); imageFrame.setImageDescriptor(id); break; case "GraphicControlExtension": GraphicControlExtension gc = new GraphicControlExtension( DisposalMethod.find(getNodeValue(attr.getNamedItem("disposalMethod"))), getBooleanValue(attr.getNamedItem("userInputFlag")), getBooleanValue(attr.getNamedItem("transparentColorFlag")), getIntValue(attr.getNamedItem("delayTime")) * 10, getIntValue(attr.getNamedItem("transparentColorIndex"))); imageFrame.setGraphicControlExtension(gc); break; } } frames.add(imageFrame); } } finally { } } public BufferedImage getCurrentFrame() { // If this was a optimised GIF, we would need to be // merging frames together to produce the current frame // This would then need to be reset each time we cycle... return frames.isEmpty() ? null : frames.get(frame).getImage(); } public void play() { if (!frames.isEmpty()) { frame = 0; playTimer.setDelay(frames.get(0).getGraphicControlExtension().getDelayTime()); playTimer.start(); player.repaint(); } } public void stop() { playTimer.stop(); } protected String getNodeValue(Node node) { return node == null ? null : node.getNodeValue(); } protected int getIntValue(Node node) { return node == null ? 0 : getIntValue(node.getNodeValue()); } protected boolean getBooleanValue(Node node) { return node == null ? false : getBooleanValue(node.getNodeValue()); } protected int getIntValue(String value) { return value == null ? 0 : Integer.parseInt(value); } protected boolean getBooleanValue(String value) { return value == null ? false : Boolean.parseBoolean(value); } public class ImageFrame { private BufferedImage image; private ImageDescriptor imageDescriptor; private GraphicControlExtension graphicControlExtension; public ImageFrame(BufferedImage image) { this.image = image; } protected void setImageDescriptor(ImageDescriptor imageDescriptor) { this.imageDescriptor = imageDescriptor; } protected void setGraphicControlExtension(GraphicControlExtension graphicControlExtension) { this.graphicControlExtension = graphicControlExtension; } public GraphicControlExtension getGraphicControlExtension() { return graphicControlExtension; } public BufferedImage getImage() { return image; } public ImageDescriptor getImageDescriptor() { return imageDescriptor; } } public class GraphicControlExtension { private DisposalMethod disposalMethod; private boolean userInputFlag; private boolean transparentColorFlag; private int delayTime; private int transparentColorIndex; public GraphicControlExtension(DisposalMethod disposalMethod, boolean userInputFlag, boolean transparentColorFlag, int delayTime, int transparentColorIndex) { this.disposalMethod = disposalMethod; this.userInputFlag = userInputFlag; this.transparentColorFlag = transparentColorFlag; this.delayTime = delayTime; this.transparentColorIndex = transparentColorIndex; } public int getDelayTime() { return delayTime; } public DisposalMethod getDisposalMethod() { return disposalMethod; } public int getTransparentColorIndex() { return transparentColorIndex; } public boolean isTransparentColorFlag() { return transparentColorFlag; } public boolean isUserInputFlag() { return userInputFlag; } } public class ImageDescriptor { private int imageLeftPosition; private int imageTopPosition; private int imageHeight; private int imageWeight; private boolean interlaced; public ImageDescriptor(int imageLeftPosition, int imageTopPosition, int imageHeight, int imageWeight, boolean interlaced) { this.imageLeftPosition = imageLeftPosition; this.imageTopPosition = imageTopPosition; this.imageHeight = imageHeight; this.imageWeight = imageWeight; this.interlaced = interlaced; } public int getImageHeight() { return imageHeight; } public int getImageLeftPosition() { return imageLeftPosition; } public int getImageTopPosition() { return imageTopPosition; } public int getImageWeight() { return imageWeight; } public boolean isInterlaced() { return interlaced; } } } } 

如果你想填写，看看GIF规格 …