Gridlayout按鈕點擊然後加載按鈕下的一個表格Java

Question

我真的沒有現在如何形成的問題，我有一個gridlayout與4個按鈕。當用戶按下添加模塊時，我想在按鈕下方顯示一個窗體而不是新窗口（如果可能的話）。

frame = new JFrame("ModuleViewer"); 
    makeMenu(frame); 

    Container contentPane = frame.getContentPane(); 

    // Specify the layout manager with nice spacing 
    contentPane.setLayout(new GridLayout(0, 2)); 

    addModule = new JButton("Toevoegen Module"); 
    contentPane.add(addModule); 

    overview = new JButton("Overzicht Modules"); 
    contentPane.add(overview); 

    addSchoolweeks = new JButton("Aapassen schoolweken"); 
    contentPane.add(addSchoolweeks); 

    weekheavy = new JButton("Weekbelasting"); 
    contentPane.add(weekheavy); 

    frame.pack(); 

    Dimension d = Toolkit.getDefaultToolkit().getScreenSize(); 
    frame.setLocation(d.width/2 - frame.getWidth()/2, d.height/2 - frame.getHeight()/2); 
    frame.setVisible(true); 

我知道我首先需要爲按鈕添加een動作方法，我知道如何做到這一點並不重要。我只想知道如何在按鈕下創建一個佈局，因此當用戶單擊佈局時將被繪製。

Answer 1

每個面板只能有一個佈局，但您可以使用多個面板達到所需的效果：頂部面板使用GridLayout來放置按鈕，底部面板使用CardLayout來放置多個其他面板，每個按鈕單擊一個。根據其內容，這些面板中的每一個都可以使用任何佈局。

import java.awt.*; 
import java.awt.event.*; 
import javax.swing.*; 

public class CardLayoutDemo implements Runnable 
{ 
    final static String CARD1 = "Red"; 
    final static String CARD2 = "Green"; 
    final static String CARD3 = "Blue"; 

    JPanel cards; 
    CardLayout cardLayout; 

    public static void main(String[] args) 
    { 
    SwingUtilities.invokeLater(new CardLayoutDemo()); 
    } 

    public void run() 
    { 
    JButton btnRed = createButton("Red"); 
    JButton btnGreen = createButton("Green"); 
    JButton btnBlue = createButton("Blue"); 

    JPanel buttons = new JPanel(new GridLayout(1,3)); 
    buttons.add(btnRed); 
    buttons.add(btnGreen); 
    buttons.add(btnBlue); 

    JPanel card1 = new JPanel(); 
    card1.setBackground(Color.RED); 

    JPanel card2 = new JPanel(); 
    card2.setBackground(Color.GREEN); 

    JPanel card3 = new JPanel(); 
    card3.setBackground(Color.BLUE); 

    cardLayout = new CardLayout(); 
    cards = new JPanel(cardLayout); 
    cards.add(card1, CARD1); 
    cards.add(card2, CARD2); 
    cards.add(card3, CARD3); 

    JFrame f = new JFrame("CardLayout Demo"); 
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
    f.add(buttons, BorderLayout.NORTH); 
    f.add(cards, BorderLayout.CENTER); 
    f.setSize(300, 200); 
    f.setLocationRelativeTo(null); 
    f.setVisible(true); 
    } 

    private JButton createButton(final String name) 
    { 
    JButton button = new JButton(name); 
    button.addActionListener(new ActionListener() 
    { 
     @Override 
     public void actionPerformed(ActionEvent e) 
     { 
     cardLayout.show(cards, name); 
     } 
    }); 

    return button; 
    } 
}