我需要什麼樣的Java佈局？

Question

我有一個JPanel，例如，如果我點擊按鈕「插入」，我可以添加一個JButton和一個JLabel。我的問題是我需要在JButton下插入JLabel。 JLabel文本必須以JButton文本爲中心。之後，我想要一個10像素左右的空間再次使用我的「INSERT」按鈕，並在同一個方向上在JButton和JLabel上水平添加一對新對。

謝謝！

PD：請嘗試補充您的問題。

Answer 1

下面是一個簡單的例子，顯示一個動態的（這是我假設你想要的）設置允許插入未定義數量的面板：

public class AwesomeAnswer { 

    public static void main(String[] args) { 
    // please not that this is only an example and not a 
    // Swing thread safe way of starting a JFrame 
    JFrame frame = new JFrame(); 

    JPanel content = (JPanel)frame.getContentPane(); 
    // create our top panel that will hold all of the inserted panels 
    JPanel page = new JPanel(); 
    page.setLayout(new BoxLayout(page, BoxLayout.Y_AXIS)); 
    // add our page to the frame content pane 
    content.add(page); 
    // add two button/label panels 
    page.add(insert("This is an awesome answer", "Accept")); 
    page.add(insert("Say thank you", "Thank")); 


    frame.pack(); 
    frame.setVisible(true); 
    } 

    public static final JPanel insert(String labelText, String buttonText) { 
    // create the label and the button 
    JLabel lbl = new JLabel(labelText); 
    JButton btn = new JButton(buttonText); 
    // create the panel that will hold the label and the button 
    JPanel wrapPanel = new JPanel(new GridBagLayout()); 
    wrapPanel.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10)); 
    // tell the grid bag how to behave 
    GridBagConstraints gbc = new GridBagConstraints(); 
    gbc.gridwidth = 0; 
    gbc.gridheight = 2; 

    // make the button centered 
    JPanel buttonPanel = new JPanel(new FlowLayout(0, 0, FlowLayout.CENTER)); 
    buttonPanel.add(btn); 

    // make the label centered 
    JPanel labelPanel = new JPanel(new FlowLayout(0, 0, FlowLayout.CENTER)); 
    labelPanel.add(lbl); 

    // add our button and label to the grid bag with our constraints 
    wrapPanel.add(buttonPanel, gbc); 
    wrapPanel.add(labelPanel, gbc); 

    return wrapPanel; 
    } 
} 

Answer 2

我認爲你有類似的東西

rootPane 
    +-----panelButton 
    |   +------JButton 
    | 
    +-----panelPanels 
       +-----panel 
        +---JButton 
        +---JLabel 

的SpringLayout可以幫助你

SpringUtilities.makeGrid(panel, 
        2, 1, //rows, cols 
        0, 0, //initialX, initialY 
        5, 5);//xPad, yPad