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POBasic Indeterminate JProgress Bar Usage
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copied!<p>I simply want to have an indeterminate JProgressBar animate in the bottom left corner of my frame when a long download is being done.</p> <p>I've looked through many tutorials, none of which are clear to me. I simply want to have it animate while the file is being downloaded in the background. Each way I've tried this, it doesn't animate the progress bar until <em>after</em> the download is done.</p> <p>I need help knowing where to place my download() call.</p> <pre><code>class MyFunClass extends JFrame { JProgressBar progressBar = new JProgressBar(); public void buttonClicked() { progressBar.setVisible(true); progressBar.setIndeterminate(true); SwingUtilities.invokeLater(new Runnable() { public void run() { progressBar.setIndeterminate(true); progressBar.setVisible(true); // Do I do my download() in here?? }}); // Do download() here??? progressBar.setVisible(false); } } </code></pre> <p>Thanks in advance!</p> <hr> <p><br /></p> <h1>Solution</h1> <p><em>Edit:</em> For those who have a similar issue to me in the future, this is the basic solution for a basic problem. This isn't my code verbatim, but a general sketch. Inside <code>buttonClicked()</code>:</p> <pre><code>public void buttonClicked() { class MyWorker extends SwingWorker(String, Object) { protected String doInBackground() { progressBar.setVisible(true); progressBar.setIndeterminate(true); // Do my downloading code return "Done." } protected void done() { progressBar.setVisible(false) } } new MyWorker().execute(); } </code></pre>

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