目前，我想要做一个游戏的菜单。 菜单看起来是这样的。 http://puu.sh/xGoC
理想的情况是，当我按下一个按钮，它会带我去游戏。 游戏看起来是这样的。 http://puu.sh/xGoV
我目前初始化一个JFrame（）在我的主类，运行或者是菜单类或游戏类（两者均为JPanels）。
我怎么会去使用CardLayout让它这样我可以初始化游戏菜单，当我点击一个按钮，改变面板的游戏面板？
Answer 1:
我有一些示例代码对你来说，它并不完美，但它应该工作。 基本上，你要使用的布局管理器的一个或上一个电话。
由于这里只有两个小组，我只是通过他们使用周期的下一个电话。 这也可能是最好的，如果你虽然读的Swing文档，这个工作，但你可能有其他的要求也是如此。
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
}
Answer 2:
不要使用CardLayout了点。
相反，请从框架的内容窗格中的菜单面板，然后添加游戏盘。
记住要validate()的帧，以及。 事情是这样的：
public static final int VIEW_MENU = 0;
public static final int VIEW_GAME = 1;
private static Container content;
...
content = frame.getContentPane();
public static void setView(int view){
if(view == VIEW_MENU){
content.remove(menuPanel);
content.add(gamePanel);
} else {
content.remove(gamePanel);
content.add(menuPanel);
}
frame.validate();
}
在我目前的工作对我的程序有一个名为ViewManager类创建每个视图的静态实例，并将它们添加到一个数组对应于常量字段指数。 我也有场跟踪的面包屑/先前的观点回去。 这可能是重新发明轮子的情况下，但它可以让你控制它的一切。 而且它的效率。
文章来源: Using CardLayout in Java
