使用 Java 在 GridBagLayout 中分配额外的水平和垂直空间
java 8object oriented programmingprogramming更新于 2024/11/11 21:24:00
要分配额外的水平和垂直空间，请使用字段 weightx 和 weighty。以下是分配额外水平和垂直空间的示例 −
示例
package my;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextArea;
import javax.swing.WindowConstants;
public class SwingDemo {
public static void main(String[] args) {
JFrame frame = new JFrame("Demo Frame");
JPanel panel = new JPanel();
GridBagLayout layout = new GridBagLayout();
panel.setLayout(layout);
GridBagConstraints gbc = new GridBagConstraints();
JLabel label = new JLabel("Rank: ");
JTextArea text = new JTextArea();
text.setText("Add rank here...");
layout.columnWeights = new double[]{0.0f, 0.0f, 2.0f};
layout.rowWeights = new double[]{0.0f, 1.0f};
gbc.gridx = 0;
gbc.gridy = 0;
gbc.weightx = 2;
gbc.weighty = 2;
layout.setConstraints(label, gbc);
panel.add(label);
gbc.gridx = 1;
gbc.gridy = 1;
gbc.weightx = 2;
gbc.weighty = 2;
layout.setConstraints(text, gbc);
panel.add(text);
frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
frame.add(panel);
frame.setSize(550, 400);
frame.setVisible(true);
}
}
输出
