15

我想JPopupMenu作为TrayIcon（即 systemTray.add(trayIcon)）添加到任务栏，但我还没有找到这样做的方法。从文档中，TrayIcon 的构造函数看起来像：

public TrayIcon(Image image,
            String tooltip,
            PopupMenu popup)

有什么办法可以做到这一点？

4

5 回答 5

6

这是一个已知问题。有一个错误报告，其中包含解决方法的概要。我已经在下面进行了调整：

// Build your popup menu
final JPopupMenu trayPopup = new JPopupMenu();
// I'm using actions, there are other ways of doing this.
trayPopup.add(someFantaticAction);

// Get your tray icon
trayIcon = new TrayIcon(icon, "My awesome application");

trayIcon.addMouseListener(new MouseAdapter() {

    @Override
    public void mouseReleased(MouseEvent e) {
        maybeShowPopup(e);
    }

    @Override
    public void mousePressed(MouseEvent e) {
        maybeShowPopup(e);
    }

    private void maybeShowPopup(MouseEvent e) {
        if (e.isPopupTrigger()) {
            trayPopup.setLocation(e.getX(), e.getY());
            trayPopup.setInvoker(trayPopup);
            trayPopup.setVisible(true);
        }
    }
});
于 2016-03-16T06:09:40.560 回答
2

对于当前的TrayIcon实现，不可能直接添加一个JPopupMenuorJMenu到TrayIcon。然而，有些人确实设法通过实现一个MouseListener只在Trayicon. 当鼠标右键单击时，将弹出菜单的位置设置为event.getXOnScreen()andevent.getYOnScreen()并将其设置为可见。

于 2013-04-21T14:01:19.963 回答
0

太激动了，我找到了解决办法。思路如下：

  1. TrayIcon trayIcon = new TrayIcon(image, "Tip Text"); // 不再需要弹出参数。

  2. trayIcon.addMouseListener(new CustomTrayIconMouseListener());

  3. CustomTrayIconMouseListener 类扩展了 MouseAdapter，并且在 TrayIconMouseListener 类中您需要完成两件事：

    3.1 定义JPopupMenu类型的成员变量，做自己想做的事情，比如添加一些JMenuItem等等。

    3.2 覆盖mouseClicked方法，然后通过判断鼠标右键点击事件弹出JPopupMenu(setVisible方法)。您需要在弹出 JPopupMenu(setLocation 方法) 之前设置它的位置。

因为我今天也遇到了这个问题，刚才就想到了这个想法，现在正在努力解决，现在正在写代码。也许我会遇到其他问题。

于 2021-06-08T13:47:07.637 回答
-1

您可以查看 Oracle 的教程和示例如何使用系统托盘

于 2012-10-01T06:58:39.897 回答
-1

我看不到构造函数 public TrayIcon(Image image, String tooltip, PopupMenu popup)的任何问题， WinXp / Win7 (Win2003/2008) 上的 Java7 也没有

import java.awt.Color;
import java.awt.Component;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GraphicsConfiguration;
import java.awt.GraphicsDevice;
import java.awt.GraphicsEnvironment;
import java.awt.Image;
import java.awt.MenuItem;
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 java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.UIManager;

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);
        Icon icon = new BevelArrowIcon(BevelArrowIcon.UP, false, false);
        Image image = iconToImage(icon);
        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);
    }

    static Image iconToImage(Icon icon) {
        if (icon instanceof ImageIcon) {
            return ((ImageIcon) icon).getImage();
        } else {
            int w = icon.getIconWidth();
            int h = icon.getIconHeight();
            GraphicsEnvironment ge =
                    GraphicsEnvironment.getLocalGraphicsEnvironment();
            GraphicsDevice gd = ge.getDefaultScreenDevice();
            GraphicsConfiguration gc = gd.getDefaultConfiguration();
            BufferedImage image = gc.createCompatibleImage(w, h);
            Graphics2D g = image.createGraphics();
            icon.paintIcon(null, g, 0, 0);
            g.dispose();
            return image;
        }
    }

    static class BevelArrowIcon implements Icon {

        public static final int UP = 0;         // direction
        public static final int DOWN = 1;
        private static final int DEFAULT_SIZE = 16;
        private Color edge1;
        private Color edge2;
        private Color fill;
        private int size;
        private int direction;

        public BevelArrowIcon(int direction, boolean isRaisedView, 
                boolean isPressedView) {
            if (isRaisedView) {
                if (isPressedView) {
                    init(UIManager.getColor("controlLtHighlight"), 
                            UIManager.getColor("controlDkShadow"), 
                            UIManager.getColor("controlShadow"), 
                            DEFAULT_SIZE, direction);
                } else {
                    init(UIManager.getColor("controlHighlight"), 
                            UIManager.getColor("controlShadow"), 
                            UIManager.getColor("control"), 
                            DEFAULT_SIZE, direction);
                }
            } else {
                if (isPressedView) {
                    init(UIManager.getColor("controlDkShadow"), 
                            UIManager.getColor("controlLtHighlight"), 
                            UIManager.getColor("controlShadow"), 
                            DEFAULT_SIZE, direction);
                } else {
                    init(UIManager.getColor("controlShadow"), 
                            UIManager.getColor("controlHighlight"), 
                            UIManager.getColor("control"), 
                            DEFAULT_SIZE, direction);
                }
            }
        }

        public BevelArrowIcon(Color edge1, Color edge2, Color fill, 
                int size, int direction) {
            init(edge1, edge2, fill, size, direction);
        }

        @Override
        public void paintIcon(Component c, Graphics g, int x, int y) {
            switch (direction) {
                case DOWN:
                    drawDownArrow(g, x, y);
                    break;
                case UP:
                    drawUpArrow(g, x, y);
                    break;
            }
        }

        @Override
        public int getIconWidth() {
            return size;
        }

        @Override
        public int getIconHeight() {
            return size;
        }

        private void init(Color edge1, Color edge2, Color fill, 
                int size, int direction) {
            edge1 = Color.red;
            edge2 = Color.blue;
            this.edge1 = edge1;
            this.edge2 = edge2;
            this.fill = fill;
            this.size = size;
            this.direction = direction;
        }

        private void drawDownArrow(Graphics g, int xo, int yo) {
            g.setColor(edge1);
            g.drawLine(xo, yo, xo + size - 1, yo);
            g.drawLine(xo, yo + 1, xo + size - 3, yo + 1);
            g.setColor(edge2);
            g.drawLine(xo + size - 2, yo + 1, xo + size - 1, yo + 1);
            int x = xo + 1;
            int y = yo + 2;
            int dx = size - 6;
            while (y + 1 < yo + size) {
                g.setColor(edge1);
                g.drawLine(x, y, x + 1, y);
                g.drawLine(x, y + 1, x + 1, y + 1);
                if (0 < dx) {
                    g.setColor(fill);
                    g.drawLine(x + 2, y, x + 1 + dx, y);
                    g.drawLine(x + 2, y + 1, x + 1 + dx, y + 1);
                }
                g.setColor(edge2);
                g.drawLine(x + dx + 2, y, x + dx + 3, y);
                g.drawLine(x + dx + 2, y + 1, x + dx + 3, y + 1);
                x += 1;
                y += 2;
                dx -= 2;
            }
            g.setColor(edge1);
            g.drawLine(xo + (size / 2), yo + size - 1, xo 
                    + (size / 2), yo + size - 1);
        }

        private void drawUpArrow(Graphics g, int xo, int yo) {
            g.setColor(edge1);
            int x = xo + (size / 2);
            g.drawLine(x, yo, x, yo);
            x--;
            int y = yo + 1;
            int dx = 0;
            while (y + 3 < yo + size) {
                g.setColor(edge1);
                g.drawLine(x, y, x + 1, y);
                g.drawLine(x, y + 1, x + 1, y + 1);
                if (0 < dx) {
                    g.setColor(fill);
                    g.drawLine(x + 2, y, x + 1 + dx, y);
                    g.drawLine(x + 2, y + 1, x + 1 + dx, y + 1);
                }
                g.setColor(edge2);
                g.drawLine(x + dx + 2, y, x + dx + 3, y);
                g.drawLine(x + dx + 2, y + 1, x + dx + 3, y + 1);
                x -= 1;
                y += 2;
                dx += 2;
            }
            g.setColor(edge1);
            g.drawLine(xo, yo + size - 3, xo + 1, yo + size - 3);
            g.setColor(edge2);
            g.drawLine(xo + 2, yo + size - 2, xo + size - 1, yo + size - 2);
            g.drawLine(xo, yo + size - 1, xo + size, yo + size - 1);
        }
    }
}
于 2012-10-01T07:21:40.090 回答