How to move from one Panel to another in a single frame without using CardLayout?

问题

I have three Panels and a single Frame in my program. I want to close/hide the current panel and show/activate the next panel. I am designing a game, hence I do not want to use CardLayout.

private void select() {
    if (currentChoice == 0) {
        f.remove(gpanel1);
        gpanel = new GamePanel();
        f.add(gpanel);
    }
}

Here f is the frame object. gpanel1 and gpanel are the initialized panel objects (constructors have already been called from the frame class).

How do I hide the old panel and move to the next panel? Is there an alternative to CardLayout?

回答1:

To change the panel in JFrame use these methods

f.setContentPane(gpanel);
f.pack();

setContentPane() removes current panel and replaces it with the provided panel.

来源：https://stackoverflow.com/questions/31905971/how-to-move-from-one-panel-to-another-in-a-single-frame-without-using-cardlayout