Updating the progress bar from a workflow

Question

I am creating a java program that downloads N elements from the server. I would like to have a work schedule that shows "already loaded items" / N percent. Right now I am updating the progressbar value by passing the link to the GUI object to the stream, but it makes the code ugly (the GUI class creates a stream containing a link to the GUI itself, creating a kind of loop). Is there a better way to do this?

Answer 1

SwingWorkerhas some advantages in this context, as suggested in this example .

Answer 2

API JProgressBar Swing , Progress Bars .

Answer 3

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Answer 4

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, ProgressTracker ( : ). JProgressBar, JLabel, ... ProgressTracker , .

SwingWorker has some code that helps merge several updates, but it is built on the assumption that long-running tasks should inherit from SwingWorker, which does not help separate problems. It really depends on you in which direction - I personally prefer that operations with my data have nothing to do with the graphical interface.

Remember to post your updates for any Swing components on EDT using SwingUtilities.invokeLater ()