CODEWITHSUNDEEP
javaswingspring-mvcjframejpanel
Van-Sama
Van-Sama

Reputation: 1264

How to set ActionListener to listen to another ActionListener to fire an event in a different class?

I'm trying to figure out how I can have a class listen to another. So this is the idea.

I have a MainFrame class, which is simply a container class, JFrame container, that takes an argument of type JPanel. Basically I want this container class to be able to switch between frames depending on what my other class, FrameSwitcher, will tell it to do.

The other classes are: FrameSwitcher, MainMenu and ScoreBoards.

The idea is that, let's say MainMenu, will contain 4 buttons, each one will listen, BUT will NOT change the frames. Rather it will somehow - and this is the part I need help with - send to the FrameSwitcher what button was clicked, and this information will then be sent to MainFrame to switch to the appropriate frames.

Upvotes: 0

Views: 831

Answers (2)

trashgod
trashgod

Reputation: 205785

You may be looking for the observer pattern, discussed here. In particular, a PropertyChangeListener, illustrated here, may be a useful approach to loose coupling.

Also consider letting each view export an Action that selects itself from a CardLayout, as suggested in How to Use Actions and How to Use CardLayout.

Upvotes: 3

StanislavL
StanislavL

Reputation: 57381

FrameSwitcher should keep ActionListeners added to the menu. On click it changes it's state and call MainFrame's method switchTo(argumentWhereToSwitch);

Upvotes: 2

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