GRIDBAGLAYOUT的应用

最新推荐文章于 2025-06-13 12:53:34 发布

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本文提供了一个使用Java Swing的GridBagLayout进行组件布局的示例代码。通过调整GridBagConstraints的属性来控制按钮的位置与大小，展示了如何创建灵活且复杂的界面布局。

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

public class GridbagSample extends JApplet
{
JPanel panelObject;
GridBagLayout gbObject;
GridBagConstraints gbc;
public void init()
{
  gbObject = new GridBagLayout();
  gbc = new GridBagConstraints();
  panelObject = (JPanel)getContentPane();
  panelObject.setLayout(gbObject);

  JButton b1 = new JButton("Button 1");
  JButton b2 = new JButton("Button 2");
  JButton b3 = new JButton("Button 3");
  JButton b4 = new JButton("Button 4");
  JButton b5 = new JButton("Button 5");
  JButton b6 = new JButton("Button 6");

  gbc.fill = GridBagConstraints.BOTH;
  gbc.anchor = GridBagConstraints.CENTER;
  gbc.gridwidth = 1;

     gbc.weightx = 1.0;
  gbObject.setConstraints(b1,gbc);
  panelObject.add(b1);

  gbc.gridwidth = GridBagConstraints.REMAINDER;
  gbc.gridheight = 1;
  gbObject.setConstraints(b2,gbc);
  panelObject.add(b2);

  gbc.gridwidth = GridBagConstraints.REMAINDER;
  gbObject.setConstraints(b3,gbc);
  panelObject.add(b3);

  gbc.weightx = 0.0;
  gbc.weighty = 1.0;
  gbc.gridheight = 2;
  gbc.gridwidth = 1;
  gbc.fill = GridBagConstraints.NONE;
  gbc.anchor = GridBagConstraints.EAST;
  gbObject.setConstraints(b4,gbc);
  panelObject.add(b4);

  gbc.gridwidth = GridBagConstraints.REMAINDER;
  gbc.gridheight = 1;
  gbc.fill = GridBagConstraints.BOTH;

  gbObject.setConstraints(b5,gbc);
  panelObject.add(b5);

  gbc.gridwidth = GridBagConstraints.REMAINDER;
  gbc.gridheight = 1;
  gbObject.setConstraints(b6,gbc);
  panelObject.add(b6);
}
}