ActiveTray.java Source code

Introduction

Here is the source code for ActiveTray.java

Source

import java.awt.AWTException;
import java.awt.Image;
import java.awt.MenuItem;
import java.awt.PopupMenu;
import java.awt.SystemTray;
import java.awt.Toolkit;
import java.awt.TrayIcon;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;

public class ActiveTray {
    public static void main(String args[]) throws Exception {
        if (SystemTray.isSupported() == false) {
            System.err.println("No system tray available");
            return;
        }
        final SystemTray tray = SystemTray.getSystemTray();
        PropertyChangeListener propListener = new PropertyChangeListener() {
            public void propertyChange(PropertyChangeEvent evt) {
                TrayIcon oldTray[] = (TrayIcon[]) evt.getOldValue();
                TrayIcon newTray[] = (TrayIcon[]) evt.getNewValue();
                System.out.println(oldTray.length + " / " + newTray.length);
            }
        };
        tray.addPropertyChangeListener("trayIcons", propListener);
        Image image = Toolkit.getDefaultToolkit().getImage("jpgIcon.jpg");
        PopupMenu popup = new PopupMenu();
        MenuItem item = new MenuItem("Hello, World");
        final TrayIcon trayIcon = new TrayIcon(image, "Tip Text", popup);
        ActionListener menuActionListener = new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                trayIcon.displayMessage("Good-bye", "Cruel World", TrayIcon.MessageType.WARNING);
            }
        };
        item.addActionListener(menuActionListener);
        popup.add(item);
        ActionListener actionListener = new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                tray.remove(trayIcon);
            }
        };
        trayIcon.addActionListener(actionListener);
        tray.add(trayIcon);
    }
}