如何在任务栏的系统托盘中隐藏JFrame [英] How to hide a JFrame in system tray of taskbar

问题描述

我创建了一个 JFrame 并希望隐藏在任务栏中（在窗口中） 在底部不可见但隐藏在托盘菜单项中。

任何人都可以告诉我该怎么做？

我是否需要在 windows 的系统设置中进行一些更改？

b $ b例如，您可能已经看到了一些下载管理员，团队查看器， 4shared桌面等等隐藏在任务栏的托盘菜单项中。

I'd created a JFrame and want to hide in taskbar (in windows not visible right in the bottom but hidden in the tray menu items).
Can anybody tell me how to do that?
Did I need to make some changes in System settings of windows?
for example, you might have seen some download managers, team viewer, 4shared desktop, etc. are hide in taskbar's tray menu items.

推荐答案

import java.awt.*;
import java.awt.event.*;
import javax.swing.JFrame;
import javax.swing.UIManager;

/**
 *
 * @author Mohammad Faisal
 * ermohammadfaisal.blogspot.com
 * facebook.com/m.faisal6621
 *
 */

public class HideToSystemTray extends JFrame{
    TrayIcon trayIcon;
    SystemTray tray;
    HideToSystemTray(){
        super("SystemTray test");
        System.out.println("creating instance");
        try{
            System.out.println("setting look and feel");
            UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
        }catch(Exception e){
            System.out.println("Unable to set LookAndFeel");
        }
        if(SystemTray.isSupported()){
            System.out.println("system tray supported");
            tray=SystemTray.getSystemTray();

            Image image=Toolkit.getDefaultToolkit().getImage("/media/faisal/DukeImg/Duke256.png");
            ActionListener exitListener=new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                    System.out.println("Exiting....");
                    System.exit(0);
                }
            };
            PopupMenu popup=new PopupMenu();
            MenuItem defaultItem=new MenuItem("Exit");
            defaultItem.addActionListener(exitListener);
            popup.add(defaultItem);
            defaultItem=new MenuItem("Open");
            defaultItem.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                    setVisible(true);
                    setExtendedState(JFrame.NORMAL);
                }
            });
            popup.add(defaultItem);
            trayIcon=new TrayIcon(image, "SystemTray Demo", popup);
            trayIcon.setImageAutoSize(true);
        }else{
            System.out.println("system tray not supported");
        }
        addWindowStateListener(new WindowStateListener() {
            public void windowStateChanged(WindowEvent e) {
                if(e.getNewState()==ICONIFIED){
                    try {
                        tray.add(trayIcon);
                        setVisible(false);
                        System.out.println("added to SystemTray");
                    } catch (AWTException ex) {
                        System.out.println("unable to add to tray");
                    }
                }
        if(e.getNewState()==7){
                    try{
            tray.add(trayIcon);
            setVisible(false);
            System.out.println("added to SystemTray");
            }catch(AWTException ex){
            System.out.println("unable to add to system tray");
        }
            }
        if(e.getNewState()==MAXIMIZED_BOTH){
                    tray.remove(trayIcon);
                    setVisible(true);
                    System.out.println("Tray icon removed");
                }
                if(e.getNewState()==NORMAL){
                    tray.remove(trayIcon);
                    setVisible(true);
                    System.out.println("Tray icon removed");
                }
            }
        });
        setIconImage(Toolkit.getDefaultToolkit().getImage("Duke256.png"));

        setVisible(true);
        setSize(300, 200);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }
    public static void main(String[] args){
        new HideToSystemTray();
    }
}

这是工作程序！

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