How to perform an action when a particular card is being displayed in CardLayout?

Question

I am having a problem in CardLayout. I have around 15 cards in my swing application. Some cards are there for displaying the data from database, they should run the sql and display the data. The name of a such card is "Lawyers".

But my question is, how do I know that "Lawyer" card is being displayed so I can call the database queries? I am not interested in knowing whether "Lawyer" got displayed after "Account" card or something like that, I just need to know whether it is being displayed now.

Any suggestions?

see my question [JPanel which one of Listeners is proper for visibility is changed](http://stackoverflow.com/questions/10880326/jpanel-which-one-of-listeners-is-proper-for-visibility-is-changed), btw answers are like as effort in your question — mKorbel, Sep 03 '14 at 16:36
Maybe [duplicate](http://stackoverflow.com/a/25339133/2587435). — Paul Samsotha, Sep 03 '14 at 18:24

score 2 · Accepted Answer · answered Sep 03 '14 at 16:19

2

You could add a ComponentAdapter to your Lawyer card and implement the "componentShown()" method

answered Sep 03 '14 at 16:19

ControlAltDel

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Thanks for the reply. Any tutorial? I have never worked with it. – PeakGen Sep 03 '14 at 16:27
@Hope probably. Look instead for "ComponentListener tutorial" – ControlAltDel Sep 03 '14 at 16:31
@Hope [here is an example](http://stackoverflow.com/a/25339133/2587435) with CardLayout and ComponentListener – Paul Samsotha Sep 03 '14 at 18:23

How to perform an action when a particular card is being displayed in CardLayout?

1 Answers1