在Java中使用CardLayout [英] Using CardLayout in Java

问题描述

我目前正在尝试制作带有菜单的游戏. 菜单看起来像这样. http://puu.sh/xGoC

I'm currently trying to make a game with a menu. Menu looks like this. http://puu.sh/xGoC

理想情况下，当我按下一个按钮时，它将带我进入游戏. 游戏看起来像这样. http://puu.sh/xGoV

Ideally, when I push a button, it will bring me to the game. The game looks like this. http://puu.sh/xGoV

我目前在我的主类中初始化一个JFrame()，它运行菜单类或游戏类(两者都是JPanels).

I currently initialize a JFrame() in my main class which runs either the menu class or the game class (Both of which are JPanels).

我该如何使用CardLayout来制作它，以便可以初始化游戏菜单，并在单击按钮时将面板更改为游戏面板?

How would I go about using CardLayout to make it so that I can initialize the game menu and when I click a button, change the panel to the game panel?

推荐答案

我为您提供了一些示例代码，虽然它并不完美，但是应该可以使用.基本上，您想在布局管理器上使用NEXT或PREVIOUS调用.

I've got some sample code for you, it's not perfect, but it should work. Basically, you want to use the NEXT or PREVIOUS calls on the layout manager.

由于只有两个面板，所以我仅使用NEXT调用来循环浏览它们.尽管您可以阅读Swing文档，但这可能是最好的选择，但是可以满足其他要求.

As there's only two panels, I just use the NEXT call to cycle through them. It's probably the best if you read the Swing documentation though, this works, but you might have other requirements as well.

import java.awt.CardLayout;


public class CardLayoutUsage extends javax.swing.JFrame {

    public CardLayoutUsage() {
        initComponents();
    }

    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">
    private void initComponents() {

        containerPanel = new javax.swing.JPanel();
        menuPanel = new javax.swing.JPanel();
        jButton2 = new javax.swing.JButton();
        gamePanel = new javax.swing.JPanel();
        jButton1 = new javax.swing.JButton();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        containerPanel.setLayout(new java.awt.CardLayout());

        menuPanel.setBackground(new java.awt.Color(153, 255, 255));

        jButton2.setText("Go to Game");
        jButton2.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton2ActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout menuPanelLayout = new javax.swing.GroupLayout(menuPanel);
        menuPanel.setLayout(menuPanelLayout);
        menuPanelLayout.setHorizontalGroup(
            menuPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, menuPanelLayout.createSequentialGroup()
                .addContainerGap(135, Short.MAX_VALUE)
                .addComponent(jButton2)
                .addGap(149, 149, 149))
        );
        menuPanelLayout.setVerticalGroup(
            menuPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, menuPanelLayout.createSequentialGroup()
                .addContainerGap(141, Short.MAX_VALUE)
                .addComponent(jButton2)
                .addGap(134, 134, 134))
        );

        containerPanel.add(menuPanel, "card2");

        gamePanel.setBackground(new java.awt.Color(255, 255, 204));

        jButton1.setText("Go to Menu");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout gamePanelLayout = new javax.swing.GroupLayout(gamePanel);
        gamePanel.setLayout(gamePanelLayout);
        gamePanelLayout.setHorizontalGroup(
            gamePanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, gamePanelLayout.createSequentialGroup()
                .addContainerGap(138, Short.MAX_VALUE)
                .addComponent(jButton1)
                .addGap(147, 147, 147))
        );
        gamePanelLayout.setVerticalGroup(
            gamePanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, gamePanelLayout.createSequentialGroup()
                .addContainerGap(152, Short.MAX_VALUE)
                .addComponent(jButton1)
                .addGap(123, 123, 123))
        );

        containerPanel.add(gamePanel, "card3");

        getContentPane().add(containerPanel, java.awt.BorderLayout.CENTER);

        pack();
    }// </editor-fold>

    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
        CardLayout cl = (CardLayout)(containerPanel.getLayout());
        cl.next(containerPanel);
    }

    private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
        CardLayout cl = (CardLayout)(containerPanel.getLayout());
        cl.next(containerPanel);
    }

    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        /* Set the Nimbus look and feel */
        //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
        /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
         * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 
         */
        try {
            for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
                if ("Nimbus".equals(info.getName())) {
                    javax.swing.UIManager.setLookAndFeel(info.getClassName());
                    break;
                }
            }
        } catch (ClassNotFoundException ex) {
            java.util.logging.Logger.getLogger(CardLayoutUsage.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(CardLayoutUsage.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(CardLayoutUsage.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(CardLayoutUsage.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        }
        //</editor-fold>

        /* Create and display the form */
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new CardLayoutUsage().setVisible(true);
            }
        });
    }
    // Variables declaration - do not modify
    private javax.swing.JPanel containerPanel;
    private javax.swing.JPanel gamePanel;
    private javax.swing.JButton jButton1;
    private javax.swing.JButton jButton2;
    private javax.swing.JPanel menuPanel;
    // End of variables declaration
}

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