我試圖使按鈕的寬度相等，并且它們的總和它們之間的寬度應該與它們上面的JTextField一樣寬。法典：window.setLayout(new GridBagLayout());GridBagConstraints gb = new GridBagConstraints();gb.gridx = 0;gb.gridy = 0;gb.gridwidth = 3;gb.fill = GridBagConstraints.HORIZONTAL;gb.gridwidth = GridBagConstraints.REMAINDER;window.add(text,gb); //adds JTextFieldgb.gridwidth = 1;gb.gridy++;window.add(one,gb); //adds JButtongb.gridx++;window.add(two,gb); //adds JButtongb.gridx++;window.add(three,gb); //adds JButton當我使用時，發生這種情況：gb.gridwidth = GridBagConstriants.RELATIVE;
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有只小跳蛙
TA貢獻1824條經驗 獲得超8個贊
您可以通過設置按鈕來實現此目的。GridBagConstraints.weightx = 1.0
要注意的另一個關鍵事項是，我已將文本字段和按鈕添加到 a 中，然后將其添加到 的內容窗格中。我沒有將文本字段和按鈕直接添加到內容窗格中。JPanelJPanelJFrame
import javax.swing.*;
import java.awt.*;
public class EqualWidthButtons
{
public static void main(String[] args)
{
JPanel panel = new JPanel();
panel.setLayout(new GridBagLayout());
GridBagConstraints gb = new GridBagConstraints();
gb.gridx = 0;
gb.gridy = 0;
gb.gridwidth = 3;
gb.fill = GridBagConstraints.HORIZONTAL;
panel.add(new JTextField(20), gb);
gb.gridwidth = 1;
gb.gridy++;
gb.weightx = 1.0; // This is the important line
panel.add(new JButton("1"), gb);
gb.gridx++;
panel.add(new JButton("2"), gb);
gb.gridx++;
panel.add(new JButton("3"), gb);
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().setLayout(new GridBagLayout());
frame.getContentPane().add(panel, new GridBagConstraints());
frame.setBounds(300, 200, 400, 300);
frame.setVisible(true);
}
}
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