SysTray.java Source code

Introduction

Here is the source code for SysTray.java

Source

import java.awt.HeadlessException;
import java.awt.Image;
import java.awt.MenuItem;
import java.awt.Panel;
import java.awt.PopupMenu;
import java.awt.SystemTray;
import java.awt.TrayIcon;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage;

import javax.swing.Icon;
import javax.swing.JOptionPane;
import javax.swing.plaf.metal.MetalIconFactory;

public class SysTray {
    public static void main(String[] args) throws Exception {
        new SysTray().installSystemTray();
    }

    public void installSystemTray() throws Exception {
        PopupMenu menu = new PopupMenu();
        MenuItem exit = new MenuItem("Exit");
        exit.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                System.exit(0);
            }
        });
        menu.add(exit);

        TrayIcon icon = new TrayIcon(getImage(), "Java application as a tray icon", menu);
        icon.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                JOptionPane.showMessageDialog(null, "Hi!");
            }
        });
        SystemTray.getSystemTray().add(icon);
        Thread.sleep(3000);
        icon.displayMessage("Attention", "Please click here", TrayIcon.MessageType.WARNING);
    }

    private Image getImage() throws HeadlessException {
        Icon defaultIcon = MetalIconFactory.getTreeHardDriveIcon();
        Image img = new BufferedImage(defaultIcon.getIconWidth(), defaultIcon.getIconHeight(),
                BufferedImage.TYPE_4BYTE_ABGR);
        defaultIcon.paintIcon(new Panel(), img.getGraphics(), 0, 0);
        return img;
    }

}