CODEWITHSUNDEEP
swingjprogressbar
tobi
tobi

Reputation: 863

Why is my indeterminate progress bar doing nothing?

In the following code, I am running a progressbar. The progressbar is shown, however it is doing nothing.

Once I set setIndeterminate(false);, it is working as expected (it updates every 500 ms and increment by 1).

How can I change that code, to show a indeterminate progressbar?

class ProgressWorker extends SwingWorker<Void, String> {
    JProgressBar progressBar;
    
    public ProgressWorker(JProgressBar progressBar) {
        this.progressBar = progressBar;
        this.progressBar.setVisible(true);
        this.progressBar.setIndeterminate(true);
        this.progressBar.setValue(0);
        progressBar.setString("Loading...");
        // This is the important line 
        progressBar.setStringPainted(true);

    }

    @Override
    protected Void doInBackground() {
        while (StatusBar.this.showIndeterminateProgress)
            try {
                this.progressBar.setValue(this.progressBar.getValue()+1);
                System.out.println("showing progress");
                publish("progress..");
                Thread.sleep(500);
            } catch (InterruptedException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

        return null;
    }

    @Override
    protected void done() {
    //          this.progressBar.setVisible(false);
    }

Somewhere I call that with

new ProgressWorker(progress).execute();

Let me emphasize that above code works fine for a determinable progressbar. I don't understand why it won't do for an indeterminate progressbar.

Upvotes: 0

Views: 37

Answers (0)

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