Java tutorial
/* * Copyright (c) 1995, 2008, Oracle and/or its affiliates. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * - Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * - Neither the name of Oracle or the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ package misc; /* * TrayIconDemo.java */ import java.awt.*; import java.awt.event.*; import java.net.URL; import javax.swing.*; public class TrayIconDemo { public static void main(String[] args) { /* Use an appropriate Look and Feel */ try { UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel"); //UIManager.setLookAndFeel("javax.swing.plaf.metal.MetalLookAndFeel"); } catch (UnsupportedLookAndFeelException ex) { ex.printStackTrace(); } catch (IllegalAccessException ex) { ex.printStackTrace(); } catch (InstantiationException ex) { ex.printStackTrace(); } catch (ClassNotFoundException ex) { ex.printStackTrace(); } /* Turn off metal's use of bold fonts */ UIManager.put("swing.boldMetal", Boolean.FALSE); //Schedule a job for the event-dispatching thread: //adding TrayIcon. SwingUtilities.invokeLater(new Runnable() { public void run() { createAndShowGUI(); } }); } private static void createAndShowGUI() { //Check the SystemTray support if (!SystemTray.isSupported()) { System.out.println("SystemTray is not supported"); return; } final PopupMenu popup = new PopupMenu(); final TrayIcon trayIcon = new TrayIcon(createImage("images/bulb.gif", "tray icon")); final SystemTray tray = SystemTray.getSystemTray(); // Create a popup menu components MenuItem aboutItem = new MenuItem("About"); CheckboxMenuItem cb1 = new CheckboxMenuItem("Set auto size"); CheckboxMenuItem cb2 = new CheckboxMenuItem("Set tooltip"); Menu displayMenu = new Menu("Display"); MenuItem errorItem = new MenuItem("Error"); MenuItem warningItem = new MenuItem("Warning"); MenuItem infoItem = new MenuItem("Info"); MenuItem noneItem = new MenuItem("None"); MenuItem exitItem = new MenuItem("Exit"); //Add components to popup menu popup.add(aboutItem); popup.addSeparator(); popup.add(cb1); popup.add(cb2); popup.addSeparator(); popup.add(displayMenu); displayMenu.add(errorItem); displayMenu.add(warningItem); displayMenu.add(infoItem); displayMenu.add(noneItem); popup.add(exitItem); trayIcon.setPopupMenu(popup); try { tray.add(trayIcon); } catch (AWTException e) { System.out.println("TrayIcon could not be added."); return; } trayIcon.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { JOptionPane.showMessageDialog(null, "This dialog box is run from System Tray"); } }); aboutItem.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { JOptionPane.showMessageDialog(null, "This dialog box is run from the About menu item"); } }); cb1.addItemListener(new ItemListener() { public void itemStateChanged(ItemEvent e) { int cb1Id = e.getStateChange(); if (cb1Id == ItemEvent.SELECTED) { trayIcon.setImageAutoSize(true); } else { trayIcon.setImageAutoSize(false); } } }); cb2.addItemListener(new ItemListener() { public void itemStateChanged(ItemEvent e) { int cb2Id = e.getStateChange(); if (cb2Id == ItemEvent.SELECTED) { trayIcon.setToolTip("Sun TrayIcon"); } else { trayIcon.setToolTip(null); } } }); ActionListener listener = new ActionListener() { public void actionPerformed(ActionEvent e) { MenuItem item = (MenuItem) e.getSource(); //TrayIcon.MessageType type = null; System.out.println(item.getLabel()); if ("Error".equals(item.getLabel())) { //type = TrayIcon.MessageType.ERROR; trayIcon.displayMessage("Sun TrayIcon Demo", "This is an error message", TrayIcon.MessageType.ERROR); } else if ("Warning".equals(item.getLabel())) { //type = TrayIcon.MessageType.WARNING; trayIcon.displayMessage("Sun TrayIcon Demo", "This is a warning message", TrayIcon.MessageType.WARNING); } else if ("Info".equals(item.getLabel())) { //type = TrayIcon.MessageType.INFO; trayIcon.displayMessage("Sun TrayIcon Demo", "This is an info message", TrayIcon.MessageType.INFO); } else if ("None".equals(item.getLabel())) { //type = TrayIcon.MessageType.NONE; trayIcon.displayMessage("Sun TrayIcon Demo", "This is an ordinary message", TrayIcon.MessageType.NONE); } } }; errorItem.addActionListener(listener); warningItem.addActionListener(listener); infoItem.addActionListener(listener); noneItem.addActionListener(listener); exitItem.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { tray.remove(trayIcon); System.exit(0); } }); } //Obtain the image URL protected static Image createImage(String path, String description) { URL imageURL = TrayIconDemo.class.getResource(path); if (imageURL == null) { System.err.println("Resource not found: " + path); return null; } else { return (new ImageIcon(imageURL, description)).getImage(); } } }