Re: Thread problems with javax.swing.Timer?

From:

Sabine Dinis Blochberger <no.spam@here.invalid>

Newsgroups:

comp.lang.java.gui

Date:

Fri, 08 May 2009 11:29:43 +0100

Message-ID:

<csmdnVyNetUElJnXnZ2dnUVZ8oidnZ2d@novis.pt>

Giampiero Mughini wrote:

Sabine Dinis Blochberger ha scritto:

A compilable example would help [1].

My guess is that whatever your timer does, should go into an invokeLater
block. See EventQueue [2]. Example:

    SwingUtilities.invokeLater(new Runnable() {
        @Override
        public void run() {
     // your code
        }
    });

protected void startCounter() {

               if (timer!=null)
                       timer.stop();

               timer = new Timer(1000, new ActionListener() {
                       public void actionPerformed(ActionEvent arg0) {
                                       updateDisplay();
                       }
               });
               timer.setInitialDelay(0);
               timer.start();

       }

Should I put the call to the method updateDisplay() into an invokeLater
block?

If it does anyhting with the Swing GUI, yes. You can also put the wrap
inside the method.

<http://mindprod.com/jgloss/swingthreads.html>
<http://java.sun.com/docs/books/tutorial/uiswing/concurrency/>

--
Sabine Dinis Blochberger

Op3racional
www.op3racional.eu