Re: Java UI Hanging with wait()
ash wrote:
You are blocking the Event Dispatch Thread. Nothing GUI related will
work while its thread is asleep.
If you need to do two things at different times to your GUI, run another
thread that calls the actions on the GUI in the EDT using
EventQueue.invokeLater().
I created a thread that is passed the components that will be modified
in the GUI and its run() it modified it.
That thread is called by EventQueue.invokeLater() method from the
synchronized method. It still didnt work , it did the same behaviour
exactly. I suspect i am doing it incorrectly. if you would point out
whats done incorrectly i would greatly appreciate it.
As Knute said, you're blocking the EDT. invokeLater()
runs your code *on* the EDT, meaning that the EDT cannot
do anything else -- like keeping the GUI alive -- until
your code finishes.
Run your code on its own thread, not on the EDT. When
your code needs to update the GUI, use invokeLater() to
get the updating -- and only the updating -- to run on
the EDT.
See the Java Tutorial for examples of how to handle
long-running tasks in a GUI framework.
http://java.sun.com/docs/books/tutorial/uiswing/concurrency/index.html
--
Eric.Sosman@sun.com