闪烁托盘图标

我知道如何使用java在窗口的系统中放置一个图标，但是执行systray图标闪烁的最佳方法是什么？ 或者如果我可以不时更换任何图标或某些事件（在应用程序运行时），请提前分享您的经验

Answer 1

• 没有问题可以在某些基础上更改图标，输出为闪烁图标

• 创建Arrays of BufferedImage或Queue的Arrays of BufferedImage

• 在期望的事件上启动Swing Timer并在某段时间内更改BufferedImage或Icons

• 并且在剩余一段时间后停止Swing Timer或者将ActionListener添加到Message ，另一种方法可以是从MouseListener （对于System Tray Icon ）确定LEFT或RIGHT鼠标按钮，一个用于停止Timer ，第二个用于JPopup

编辑

例如，正如我所提到的，你可以添加ActionListener或MouseListener，你可以在那里停止Swing Timer

 import java.awt.AWTException; 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 java.util.logging.Level; import java.util.logging.Logger; import javax.swing.AbstractAction; import javax.swing.Action; import javax.swing.Icon; import javax.swing.ImageIcon; import javax.swing.SwingUtilities; import javax.swing.Timer; import javax.swing.UIManager; public class ActiveTray { private SystemTray tray; private TrayIcon trayIcon; private Icon icon, icon1; private Image image, image1; private Timer timer; public ActiveTray() { if (SystemTray.isSupported() == false) { System.err.println("No system tray available"); return; } 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 = new BevelArrowIcon(BevelArrowIcon.UP, false, false); image = iconToImage(icon); icon1 = new BevelArrowIcon(BevelArrowIcon.DOWN, false, false); image1 = iconToImage(icon1); PopupMenu popup = new PopupMenu(); MenuItem item = new MenuItem("Hello, World"); 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); try { tray.add(trayIcon); start(); } catch (AWTException ex) { Logger.getLogger(ActiveTray.class.getName()).log(Level.SEVERE, null, ex); } } private void start() { timer = new javax.swing.Timer(125, updateCol()); timer.start(); trayIcon.displayMessage(null, " Aplication Loaded ", TrayIcon.MessageType.NONE); } private Action updateCol() { return new AbstractAction("Icon load action") { private static final long serialVersionUID = 1L; @Override public void actionPerformed(ActionEvent e) { Runnable doRun = new Runnable() { @Override public void run() { Image img = trayIcon.getImage(); if (img == image) { trayIcon.setImage(image1); } else { trayIcon.setImage(image); } } }; SwingUtilities.invokeLater(doRun); } }; } public static void main(String args[]) { ActiveTray activeTray = new ActiveTray(); } 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); } } }