Exception while trying to restore a JFrame?

More: It's not pinin', it's passed on! This parrot is no more! It has ceased to be! It's expired and gone to meet its maker! This is a late parrot. It's a stiff! Bereft of life, it rests in peace! If you hadn't nailed it to the perch it would be pushing up the daisies! It's rung down the curtain and joined the choir invisible! This is an ex-parrot!

petes1234a at 2007-7-12 19:57:52 >

You have closed the frame not minimized it. The frame is now gone. Set up for garbage collecting. Dead, etc... (look at the dead parrot sketch above). (anybody, please correct me if i'm wrong)

I really don't know how to explain this any more clearly. Exactly what about a closed dead form do you not understand? Don't be a silly ole bear of very little brain. Surely you've closed apps such as Word, and understand that if you want to resurrect them, you have to restart the entire program from scratch. If you understand that, surely you understand this.

Message was edited by:

petes1234

petes1234a at 2007-7-12 19:57:52 >

so sorry for late,network problem

hello petes here is a sample of my code run it and you will understand what i,m trying to do

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

import javax.swing.text.NumberFormatter;

import javax.swing.JFrame;

import javax.swing.JButton;

import java.awt.Image;

import javax.swing.ImageIcon;

import java.awt.Toolkit;

import java.awt.Container;

import java.awt.event.ActionListener.*;

import java.awt.event.ActionEvent.*;

import java.lang.Runtime;

import java.io.*;

import java.io.IOException;

import java.rmi.*;

import java.rmi.server.*;

import java.math.*;

import java.util.*;

import java.text.*;

import javax.swing.text.*;

import javax.swing.JMenuItem;

import javax.swing.JPopupMenu;

import javax.swing.JMenuBar;

import javax.swing.JMenu;

import javax.swing.AbstractButton;

import java.awt.event.ActionListener;

import java.awt.event.ActionEvent;

import java.awt.event.KeyEvent;

import java.awt.AWTException;

import java.awt.Desktop;

import java.awt.Image;

import java.awt.SystemTray;

import java.awt.Toolkit;

import java.awt.TrayIcon;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.JPanel;

import javax.swing.JTextField;

import java.util.EventObject;

class systemtray extends JFrame

{

private Desktop desktop;

private TrayIcon trayIcon=null;

private SystemTray tray;

private JFrame frame;

private PopupMenu popup;

private MenuItem unHideItem;

private MenuItem defaultItem;

public systemtray()

{

if (Desktop.isDesktopSupported()) {

desktop = Desktop.getDesktop();

}

initComponents();

final JFrame frame=new JFrame("System Tray");

frame.setSize(350,200);

frame.setResizable(false);

frame.setVisible(true);

}

private void initComponents(){

setupSystemTray();

}

private void setupSystemTray() {

if (SystemTray.isSupported()) {

final SystemTray tray = SystemTray.getSystemTray();

Image image = Toolkit.getDefaultToolkit().getImage("D:\\Other\\JAVA\\Icons\\shutdown.png");

ActionListener exitListener = new ActionListener() {

public void actionPerformed(ActionEvent e) {

System.exit(0);

}

};

ActionListener unHideListener = new ActionListener() {

public void actionPerformed(ActionEvent e) {

//which method should i add here to restore the application from the system tray

tray.remove(trayIcon);

}

};

ActionListener actionListener = new ActionListener() {

public void actionPerformed(ActionEvent e) {

//which method should i add here to restore the application from the system tray

tray.remove(trayIcon);

}

};

PopupMenu popup = new PopupMenu();

MenuItem defaultItem = new MenuItem("Exit");

defaultItem.addActionListener(exitListener);

MenuItem unHideItem = new MenuItem("Restore");

unHideItem.addActionListener(unHideListener);

popup.add(unHideItem);

popup.add(defaultItem);

trayIcon = new TrayIcon(image, "JShutdown Timer",popup);

class TrayActionListener implements ActionListener {

public void actionPerformed(ActionEvent ee) {

trayIcon.getPopupMenu();

}

};

trayIcon.setImageAutoSize(true);

trayIcon.addActionListener(actionListener);

trayIcon.addActionListener(new TrayActionListener());

try {

tray.add(trayIcon);

} catch (AWTException e) {

}

}

else{

}

}

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

}

First_knighta at 2007-7-21 22:33:13 >

I suspect that you may have had trouble working with class fields while in the nested actionlistener class. That's why I created an extremely simple method "whatTheF" that's located outside the actionlistener but called by it. It has full access to all of the systemtray class's fields and methods.

petes1234a at 2007-7-21 22:33:14 >

but i have a little bug here

when i minimized the program to tray(by Pressing the Standard close button) and restored it for the first time,it was restored proberly .and when i tried to minimize it again(by Pressing the Standard close button) it disappeares? but still working in the back ground?

First_knighta at 2007-7-21 22:33:14 >

WindowAdapter actionListener2 = new WindowAdapter()

{

public void windowClosing(WindowEvent e2) {

try{

Thread.sleep(1);

trayIcon.displayMessage("Take Care !",

"JShutdown Timer Is In Progress Here.",

TrayIcon.MessageType.WARNING);

}

catch(InterruptedException un){}

}

};

First_knighta at 2007-7-21 22:33:14 >