Create Modal JDialog while things are processing

Question

how do you create a Modal JDialog saying "loading" while a task is processing that shows after more than 3 seconds has passed?

It's pretty simple if the processing is happening in a thread separate from the UI thread. That is the preferable way to do it. Otherwise you're dong the processing in your main UI thread and having to launch a separate UI thread just to work around your architecture. — Paul Sasik, Jul 25 '11 at 01:37

score 5 · Answer 1 · answered Jul 25 '11 at 01:35

5

To expand on Paul's answer, a SwingWorker would work well for running your background task. You could then display either a progress or a progress monitor, and the tutorials can help you here: How to Use Progress Bars

answered Jul 25 '11 at 01:35

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+1 Hover: I got a bit lazy with my answer and just demoted it to a comment. – Paul Sasik Jul 25 '11 at 01:38

score 3 · Accepted Answer · answered Jul 25 '11 at 07:23

If the task is to load an InputStream, see ProgressMonitorInputStream.

E.G. (untested)

ProgressMonitorInputStream pmis = new ProgressMonitorInputStream(
    parentComponent, message, inputStream);
ProgressMonitor pm = pmis.getProgressMonitor();
pm.setMillisToPopup(millisToPopup);

It will be necessary to load the InputStream in a Thread in order to avoid blocking the EDT.

Create Modal JDialog while things are processing

2 Answers2