将JPopupMenu添加到TrayIcon
我想将JPopupMenu作为TrayIcon添加到任务栏（ 即 systemTray.add(trayIcon) ），但我还没有找到办法。从文档中，TrayIcon的构造函数如下所示：
public TrayIcon(Image image, String tooltip, PopupMenu popup)
有什么方法可以做到这一点吗？
这是一个已知问题。 有一个错误报告 ，其中包含一个变通方法的大纲。 我在下面改编了：
// 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); } } });
对于当前的TrayIcon实现，无法直接向TrayIcon添加JPopupMenu或JMenu 。 但是，有些人确实设法通过实现自定义MouseListener来解决它，该MouseListener仅在Trayicon侦听右键单击。 右键单击鼠标时，在event.getXOnScreen()和event.getYOnScreen()设置Popupmenu的位置并设置它。
我看不到构造函数public TrayIcon（Image image，String tooltip，PopupMenu popup）的任何问题，WinXp / Win7上的Java7也没有 （Win2003 / 2008）
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); } } }
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