Update GUI while waiting on network result

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carlg@libertybasic.com - 20 Dec 2006 21:47 GMT

How do I force my JLabel to display on the screen when I set it's
contents before some business, like for example some JMS communication
over a slow network?

myLabel.setText("Now commencing network communication...");
myJMSTask.go();

-Carl Gundel, author of Liberty BASIC
http://www.libertybasic.com

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Andrew Thompson - 20 Dec 2006 21:57 GMT

> How do I force my JLabel to display on the screen when I set it's
> contents before some business, ..

..ensure 'the business' is not done on the EDT.

Andrew T.

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carlg@libertybasic.com - 21 Dec 2006 03:10 GMT

> > How do I force my JLabel to display on the screen when I set it's
> > contents before some business, ..
>
> ..ensure 'the business' is not done on the EDT.

What exactly do you mean by EDT? Are you saying I should kick off a
thread with 'the business' in it? Perhaps that'll work.

-Carl

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Ian Wilson - 21 Dec 2006 10:30 GMT

>>>How do I force my JLabel to display on the screen when I set it's
>>>contents before some business, ..
>>
>>..ensure 'the business' is not done on the EDT.
>
> What exactly do you mean by EDT?

Andrew is referring to the Event Dispatching Thread. This is where all
the GUI work goes on, listening for user actions and responding. If you
want a responsive GUI then you must ensure that non-GUI work does not
block the EDT.

> Are you saying I should kick off a
> thread with 'the business' in it? Perhaps that'll work.

He is, it will. Don't forget to Thread.setPriority(Thread.NORMAL);

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Update GUI while waiting on network result

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