JFrame: getGlassPane() : JFrame « javax.swing « Java by API

1. Java by API
2. javax.swing
3. JFrame

JFrame: getGlassPane()

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

public class MainClass {

  public static void main(String[] args) {
    JFrame f = new JFrame();
    
    final JPanel p1 = new JPanel();
    p1.add(new JLabel("GlassPane Example"));
    JButton show = new JButton("Show");
    p1.add(show);
    p1.add(new JButton("No-op"));
    f.getContentPane().add(p1);

    final JPanel glass = (JPanel)f.getGlassPane();

    glass.setVisible(true);
    glass.setLayout(new GridBagLayout());
    JButton glassButton = new JButton("Hide");
    glass.add(glassButton);

    f.setSize(150, 80);
    f.setVisible(true);

    show.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        glass.setVisible(true);
        p1.repaint();
      }
    });
    glassButton.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        glass.setVisible(false);
        p1.repaint();
      }
    });
  }
}

           
         
    
  

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