IllegalStateException when adding label to the screen from timertask

Hello

I have a thread that gets the text for a labelfield. I just want to add the labelfield on-screen when the thread is finished.

I have a timertask that checks when the thread is finished and when the thread is finished, he tries to add the label to the form.

This is the code, but when I try to add the label I get illegalstateexception-

GTC GetContent = new GetContent();
t = new Thread (gtc);
t.Start ();
            
Timer = new Timer();
timer.scheduleAtFixedRate (new TimerTask() {}
public void run() {}
{if (! t.IsAlive ())}
Timer.Cancel ();
Test string = t.getTextLabel ();
addLabel (new LabelField (test));
}
}
Invalidate();
}
(}, 1000, 1000);

}
        
Private Sub addLabel (LabelField l) {}
Add (l);
}

If she runs in an external thread to wrap it in an invokelater (or the synchronization on the eventlock).

You can check the exceptions by surrounding the code with a try/catch.

Tags: BlackBerry Developers

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