How do determine shown card in card layout
Hi, each of my cards is an extended JPanel. I have to run some code, but the code thats needs to be run is dependent on which extended JPanel is currently shown in my card layout (because the code to be run is part of the extended JPanel). So, is there an easy way to get the object that the currenly displayed card is so that I can call methods on that object (one of the extended JPanels)?
Since the card layout is just the layout of a JPanel anyway, I thought I might just try to call the methods on that panel. But since that is just a normal panel, it doesn't know about the methods I need to call. And I'm not sure if I could just cast it (but even if I could, I wouldn't know what to cast it to because I dont know which cards is currently displayed, and hence which type of extended JPanel to cast it to)
Thanks in advance,
-Marshall
There are different ways to do this. One of the easiest is to keep track of the index of the card that is showing and use this to access the reference to the component you put on that card. You can track the index in your event code.
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