是否可以使用 Java 中的 JOptionPane 同时显示多个弹出窗口？

Question

I want to create a program that displays multiple pop ups at the same time in different locations.

This program creates on pop up shifted to the right and one jFrame shifted to the left.

I want both frames to be pop ups.

Here is my code:

import javax.swing.*;
import java.awt.*;
public class jFrame{
    public static void createWindow(){

        JFrame frame = new JFrame();
        JFrame frame2 = new JFrame();

        frame.setVisible(true);
        frame.setLocation(100,500);

        frame2.setVisible(true);
        frame2.setLocation(900,500);

        int x = 0;
        int y = 5;
        while(y>x){
          int reply = JOptionPane.showConfirmDialog(frame, "Do you wanna get rid of this popup?", "Message", JOptionPane.YES_NO_OPTION);
          if (reply == JOptionPane.YES_OPTION) {
            JOptionPane.showConfirmDialog(frame, "Sike \n You thought", "Message", JOptionPane.OK_CANCEL_OPTION);
          }      
          int reply2 = JOptionPane.showConfirmDialog(frame2, "Do you wanna get rid of this popup?", "Message", JOptionPane.YES_NO_OPTION);
          if (reply2 == JOptionPane.YES_OPTION) {
            JOptionPane.showConfirmDialog(frame2, "Sike \n You thought", "Message", JOptionPane.OK_CANCEL_OPTION);
          }
        }
    }  

    public static void main(String[] args){
        createWindow()
    }
}

Answer 1

Start by taking a look at How to Use Modality in Dialogs

Basically, the default modality of the dialog (when setModal is true ) is to block all top level containers. You can control this by chaning the ModalityType of the dialog, for example

import java.awt.Dialog;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.GraphicsConfiguration;
import java.awt.GraphicsDevice;
import java.awt.GraphicsEnvironment;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.Rectangle;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;

public class DialogTest {

    public static void main(String[] args) {
        new DialogTest();
    }

    public DialogTest() {
        EventQueue.invokeLater(new Runnable() {
            @Override
            public void run() {
                try {
                    UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
                } catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
                    ex.printStackTrace();
                }

                GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
                GraphicsDevice device = ge.getDefaultScreenDevice();
                GraphicsConfiguration gc = device.getDefaultConfiguration();
                Rectangle bounds = gc.getBounds();
                Insets insets = Toolkit.getDefaultToolkit().getScreenInsets(gc);

                bounds.x += insets.left;
                bounds.y += insets.top;
                bounds.width -= (insets.left + insets.right);
                bounds.height -= (insets.top + insets.bottom);


                JFrame frame = new JFrame("Testing");
                frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                frame.add(new TestPane());
                frame.pack();
                frame.setLocation(bounds.x + ((bounds.width / 2) - frame.getWidth()),
                        bounds.y + ((bounds.height / 2) - frame.getHeight()));
                frame.setVisible(true);

                JFrame frame2 = new JFrame("Testing");
                frame2.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                frame2.add(new TestPane());
                frame2.pack();
                frame2.setLocation(bounds.x + ((bounds.width / 2)),
                        bounds.y + ((bounds.height / 2) - frame2.getHeight()));
                frame2.setVisible(true);
            }
        });
    }

    public class TestPane extends JPanel {

        public TestPane() {
            setLayout(new GridBagLayout());
            JButton popup = new JButton("Popup");
            add(popup);

            popup.addActionListener(new ActionListener() {
                @Override
                public void actionPerformed(ActionEvent e) {
                    JDialog dialog = new JDialog(SwingUtilities.windowForComponent(TestPane.this));
                    dialog.setModalityType(Dialog.ModalityType.DOCUMENT_MODAL);

                    JPanel panel = new JPanel(new GridBagLayout());
                    GridBagConstraints gbc = new GridBagConstraints();
                    gbc.gridwidth = GridBagConstraints.REMAINDER;
                    panel.add(new JLabel("I'll be your dialog today"), gbc);
                    JButton close = new JButton("Close");
                    close.addActionListener(new ActionListener() {
                        @Override
                        public void actionPerformed(ActionEvent e) {
                            SwingUtilities.windowForComponent(close).dispose();
                        }
                    });
                    panel.add(close, gbc);
                    dialog.add(panel);
                    dialog.pack();
                    dialog.setLocationRelativeTo(TestPane.this);
                    dialog.setVisible(true);
                }
            });
        }

        @Override
        public Dimension getPreferredSize() {
            return new Dimension(200, 200);
        }

    }

}

Now, before you ask about getting JOptionPane to work this way, the answer is basically, no.

You "can" make a custom extension to JOptionPane , which overrides the two createDialog methods, but you won't be able to use the static helper methods, as they create an instance of JOptionPane

Answer 2

yes Of Course It is, the only way is :

lets imagine that we have One Panel : myPanel

in myPanel we have one button btn1

in btn1's eventListner we have a method that display a JOptionPan pop1 where we have an another button btn2

we can have inside btn2's eventListner that display also an other JOptionPan pop2.

So it is possible. And you can add customized JOptionPans By the way.