JFileChooser hangs around

Question

Hi,
I have a JFileChooser so I can choose a file... but then I do some processing during the course of which the JFrame, JPanel etc. fields are meant to be updated. But JFileChooser just won't go away and return focus/control/whatever to the main Objects in my program (i.e. JFrame etc.). So the fields only get updated at the end of the processing, at which time the Jfilechooser also goes away.
I have tried so many things to try and get rid of it: grabfocus, setVisible, disable, etc. etc. But I just can't get rid of it when it's done its job!
any help much appreciated
Mike

Answer 1

if so, the problem is that your swing event loop is busy doing the processing of the file that is picked by the JFileChooser.
to fix this, simply kick off your processing in it's own thread. and then if you want your thread to update the JFrame then you will need to use the SwingUtilities.invokeLater(runnable) method. to do that, you create little Runnables that have a reference to the item you want to update, such as a TextField and you would put the update in there, such as jTextField.setText("something");