将屏幕分成若干部分,并指定每个组件的宽度(网格),以及网格和网格,以便相应地放置它们。
我编写的示例的输出如下所示:
代码:
public class Example extends JPanel {
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
new Example();
}
});
}
JFrame go = new JFrame("Example");
JPanel panel = new JPanel();
GridBagLayout Grid = new GridBagLayout();
JLabel Title = new JLabel("LARGE TITLE", SwingConstants.CENTER);
JLabel Label1 = new JLabel("Label 1", SwingConstants.CENTER);
JLabel Label2 = new JLabel("Label 2", SwingConstants.CENTER);
JLabel anotherLabel1 = new JLabel("Another Label 1", SwingConstants.CENTER);
JLabel anotherLabel2 = new JLabel("Another Label 2", SwingConstants.CENTER);
JTextArea textArea1 = new JTextArea("TextArea 1");
JTextArea textArea2 = new JTextArea("TextArea 2");
public Example() {
panel.setLayout(Grid);
panel.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);
Title.setFont(new Font("Serif", Font.BOLD, 60));
JButton button;
panel.setLayout(new GridBagLayout());
GridBagConstraints c = new GridBagConstraints();
c.fill = GridBagConstraints.HORIZONTAL;
c.ipady = 40; //increase height of the title
c.weightx = 0.5;
c.gridwidth = 4;
c.gridx = 0;
c.gridy = 0;
panel.add(Title, c);
c.ipady = 0;
c.gridwidth = 2;
c.weightx = 0.5;
c.gridx = 0;
c.gridy = 1;
panel.add(Label1, c);
c.weightx = 0.5;
c.gridwidth = 2;
c.gridx = 2;
c.gridy = 1;
panel.add(Label2, c);
c.ipady = 0;
c.gridwidth = 1;
c.weightx = 0.25;
c.gridx = 0;
c.gridy = 2;
panel.add(anotherLabel1, c);
c.weightx = 0.25;
c.gridx = 1;
c.gridy = 2;
panel.add(textArea1, c);
c.weightx = 0.25;
c.gridx = 2;
c.gridy = 2;
panel.add(anotherLabel2, c);
c.weightx = 0.25;
c.gridx = 3;
c.gridy = 2;
panel.add(textArea2, c);
button = new JButton("JButton");
c.ipady = 0;
c.weighty = 1.0;
c.insets = new Insets(10, 0, 0, 0);
c.gridx = 1;
c.gridwidth = 2;
c.gridy = 3;
panel.add(button, c);
go.add(panel);
go.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
go.pack();
go.setSize(750, 300);
go.setVisible(true);
}
}
相关文件: