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POAnimating a series of images
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  1. POAnimating a series of images
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    copied!<p>I am animating a series of images in java. So far I able to animate without any problem. The problem occur only when I add in control(Start, Stop, etc..). When I press Start in my GUI the GUI does not show the animation only the last frame is shown after the animation has ended.</p> <p>I not sure is it the threading problem or a painting problem, as I have tried a few methods and none of them worked.</p> <p>Following is my code:</p> <p><code> public class SwingAnimation extends JPanel implements ActionListener {</p> <pre><code>protected JFrame frame; protected JLabel lblDisplay; protected JButton BtnStart, BtnStop, BtnPause; protected JCheckBox chkLoop; protected Thread th; public static void main(String[] args) { SwingAnimation sa = new SwingAnimation(); } public SwingAnimation() { frame = new JFrame("Animation"); Panel panel = new Panel(); lblDisplay = new JLabel(); BtnStart = new JButton("Start"); BtnStop = new JButton("Stop"); BtnPause = new JButton("Pause"); chkLoop = new JCheckBox("Loop"); BtnStop.setEnabled(false); BtnPause.setEnabled(false); BtnStart.setActionCommand("start"); BtnStop.setActionCommand("stop"); BtnPause.setActionCommand("pause"); panel.add(lblDisplay); panel.add(BtnStart); panel.add(BtnPause); panel.add(BtnStop); panel.add(chkLoop); frame.add(panel, BorderLayout.CENTER); frame.setSize(400, 400); frame.setVisible(true); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); //set the frame in the center of the screen Dimension screensize = Toolkit.getDefaultToolkit().getScreenSize(); int screen_x = (screensize.width - frame.getWidth()) / 2; int screen_y = (screensize.height - frame.getHeight()) / 2; frame.setLocation(screen_x, screen_y); BtnStart.addActionListener(this); BtnStop.addActionListener(this); BtnPause.addActionListener(this); chkLoop.addActionListener(this); th = new Thread(); //ImageAnimator(); } public void ImageAnimator() { try { for (int i = 0; i &lt;= 299; i++) { ImageIcon images = new ImageIcon("C:\\Users\\Desktop\\Images\\Snap" + i + ".jpg"); lblDisplay.setIcon(images); th.sleep(25); } } catch (InterruptedException e) { } } public void actionPerformed(ActionEvent e) { if ("start".equals(e.getActionCommand())) { BtnStart.setEnabled(false); BtnStop.setEnabled(true); BtnPause.setEnabled(true); lblDisplay.setVisible(true); ImageAnimator(); } else if ("stop".equals(e.getActionCommand())) { BtnStart.setText("Start"); BtnStart.setEnabled(true); BtnStop.setEnabled(false); BtnPause.setEnabled(false); lblDisplay.setVisible(false); th = null; } else if ("pause".equals(e.getActionCommand())) { BtnStart.setText("Resume"); BtnStart.setEnabled(true); BtnStop.setEnabled(true); BtnPause.setEnabled(false); } } </code></pre> <p>} </code></p>
 

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