CardLayout focus java

Question

I'm trying to get my keyboard input to work, however it is not detecting anything - probably because I'm using CardLayout and i'm not setting the focus properly when I call the show() function.

Currently, it looks like this.

    containerPanel.add(new GameArea(), "newGameArea");
        CardLayout cl = (CardLayout)(containerPanel.getLayout());
        //containerPanel.requestFocusInWindow();
        cl.show(containerPanel, "newGameArea");

Any help would be greatly appreciated.

Answer 1

• focus is asynchronous, then you have to wrap requestFocus to the invokeLater

• this should be works in the case that there isn't added another Listenet take Focus

• don't use KeyListener for Swing JComponents, use KeyBindings instead