java – 抓住双击托盘中图标的事件
当我双击托盘图标时，我想让我的表单可见？
如何双击图标？
谢谢。
尝试使用MouseListener
public void mousePressed( MouseEvent e ) { if(e.getClickCount() >= 2){ //do something } } 嗯，基本上所有的post都是正确的……但是对于DoubleMouseClick的corect输出必须包装到javax.swing.Timer
例如
import java.awt.*; import java.awt.event.*; import javax.swing.*; public class ClickListener extends MouseAdapter implements ActionListener { private final static int clickInterval = (Integer) Toolkit.getDefaultToolkit().getDesktopProperty("awt.multiClickInterval"); private MouseEvent lastEvent; private Timer timer; public ClickListener() { this(clickInterval); } public ClickListener(int delay) { timer = new Timer(delay, this); } @Override public void mouseClicked(MouseEvent e) { /*if (e.getClickCount() > 2) { return; } lastEvent = e; if (timer.isRunning()) { timer.stop(); doubleClick(lastEvent); } else { timer.restart(); }*/ if (timer.isRunning() && !e.isConsumed() && e.getClickCount() > 1) { System.out.println("double"); timer.stop(); } else { timer.restart(); } } @Override public void actionPerformed(ActionEvent e) { timer.stop(); singleClick(lastEvent); } public void singleClick(MouseEvent e) { } public void doubleClick(MouseEvent e) { } public static void main(String[] args) { JFrame frame = new JFrame("Double Click Test"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.addMouseListener(new ClickListener() { @Override public void singleClick(MouseEvent e) { System.out.println("single"); } @Override public void doubleClick(MouseEvent e) { System.out.println("double"); } }); frame.setPreferredSize(new Dimension(200, 200)); frame.pack(); frame.setVisible(true); } }
但是使用TrayIcon对SystemTray进行核心修改会添加ActionListener
例如
import java.awt.*; import java.awt.event.*; import java.net.URL; import javax.swing.*; public class TrayIconDemo { public static void main(String[] args) { try {// Use an appropriate Look and Feel //UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel"); UIManager.setLookAndFeel("javax.swing.plaf.metal.MetalLookAndFeel"); } catch (UnsupportedLookAndFeelException ex) { ex.printStackTrace(); } catch (IllegalAccessException ex) { ex.printStackTrace(); } catch (InstantiationException ex) { ex.printStackTrace(); } catch (ClassNotFoundException ex) { ex.printStackTrace(); } UIManager.put("swing.boldMetal", Boolean.FALSE);// Turn off metal's use of bold fonts SwingUtilities.invokeLater(new Runnable() {//Schedule a job for the event-dispatching thread: adding TrayIcon. @Override public void run() { createAndShowGUI(); } }); } private static void createAndShowGUI() { if (!SystemTray.isSupported()) {//Check the SystemTray support System.out.println("SystemTray is not supported"); return; } final PopupMenu popup = new PopupMenu(); final TrayIcon trayIcon = new TrayIcon(createImage("Icon/failed.png", "tray icon")); final SystemTray tray = SystemTray.getSystemTray(); MenuItem aboutItem = new MenuItem("About"); // Create a popup menu components CheckboxMenuItem cb1 = new CheckboxMenuItem("Set auto size"); CheckboxMenuItem cb2 = new CheckboxMenuItem("Set tooltip"); Menu displayMenu = new Menu("Display"); MenuItem errorItem = new MenuItem("Error"); MenuItem warningItem = new MenuItem("Warning"); MenuItem infoItem = new MenuItem("Info"); MenuItem noneItem = new MenuItem("None"); MenuItem exitItem = new MenuItem("Exit"); popup.add(aboutItem); //Add components to popup menu popup.addSeparator(); popup.add(cb1); popup.add(cb2); popup.addSeparator(); popup.add(displayMenu); displayMenu.add(errorItem); displayMenu.add(warningItem); displayMenu.add(infoItem); displayMenu.add(noneItem); popup.add(exitItem); trayIcon.setPopupMenu(popup); try { tray.add(trayIcon); } catch (AWTException e) { System.out.println("TrayIcon could not be added."); return; } trayIcon.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { JOptionPane.showMessageDialog(null, "This dialog box is run from System Tray"); } }); aboutItem.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { JOptionPane.showMessageDialog(null, "This dialog box is run from the About menu item"); } }); cb1.addItemListener(new ItemListener() { @Override public void itemStateChanged(ItemEvent e) { int cb1Id = e.getStateChange(); if (cb1Id == ItemEvent.SELECTED) { trayIcon.setImageAutoSize(true); } else { trayIcon.setImageAutoSize(false); } } }); cb2.addItemListener(new ItemListener() { @Override public void itemStateChanged(ItemEvent e) { int cb2Id = e.getStateChange(); if (cb2Id == ItemEvent.SELECTED) { trayIcon.setToolTip("Sun TrayIcon"); } else { trayIcon.setToolTip(null); } } }); ActionListener listener = new ActionListener() { @Override public void actionPerformed(ActionEvent e) { MenuItem item = (MenuItem) e.getSource(); System.out.println(item.getLabel()); //TrayIcon.MessageType type = null; if ("Error".equals(item.getLabel())) {//type = TrayIcon.MessageType.ERROR ; trayIcon.displayMessage("Sun TrayIcon Demo", "This is an error message", TrayIcon.MessageType.ERROR); } else if ("Warning".equals(item.getLabel())) {//type = TrayIcon.MessageType.WARNING; trayIcon.displayMessage("Sun TrayIcon Demo", "This is a warning message", TrayIcon.MessageType.WARNING); } else if ("Info".equals(item.getLabel())) { //type = TrayIcon.MessageType.INFO; trayIcon.displayMessage("Sun TrayIcon Demo", "This is an info message", TrayIcon.MessageType.INFO); } else if ("None".equals(item.getLabel())) {//type = TrayIcon.MessageType.NONE; trayIcon.displayMessage("Sun TrayIcon Demo", "This is an ordinary message", TrayIcon.MessageType.NONE); } } }; errorItem.addActionListener(listener); warningItem.addActionListener(listener); infoItem.addActionListener(listener); noneItem.addActionListener(listener); exitItem.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { tray.remove(trayIcon); System.exit(0); } }); } protected static Image createImage(String path, String description) {//Obtain the image URL URL imageURL = TrayIconDemo.class.getResource(path); if (imageURL == null) { System.err.println("Resource not found: " + path); return null; } else { return (new ImageIcon(imageURL, description)).getImage(); } } private TrayIconDemo() { } }
使用MouseListener接口
public class MouseEventDemo ... implements MouseListener
并实施
public void mouseClicked(MouseEvent e) { }
您可以从int getClickCount()找到click值，它返回用户所做的快速连续点击次数（包括此事件）。 例如，双击返回2。
ActionListener actionListener = new ActionListener() { @Override public void actionPerformed( ActionEvent e ) { //Double click code here } }; SystemTray tray = SystemTray.getSystemTray(); TrayIcon trayIcon = new TrayIcon(); trayIcon.addActionListener(actionListener); tray.add(trayIcon);
这就是它对我有用的方式
如果你打算为此编写你自己的函数而不是它如下所示：
捕获鼠标点击事件，保持“long timeStamp”将其初始化为0L作为实例变量，
现在双击是在3秒或5秒内两次点击
so { if (timeStamp == 0L) { timeStamp = System.getCurrentTime(); //please chk the exact syntax of this... it gives milli seconds } else if ((timeStamp + 5000) <= System.getCurrentTime()) // here i am giving time window of 5 sec = 5000 milli seconds { //do ur double click code; then set timeStamp back to 0; timeStamp = 0L; } else { //its first click timeStamp = System.getCurrentTime(); } }
trayIcon.addMouseListener(new java.awt.event.MouseAdapter() { @Override public void mouseClicked(java.awt.event.MouseEvent evt) { if (evt.getClickCount() == 2) { setVisible(true); setExtendedState(JFrame.NORMAL); } } }); tray.add(trayIcon);
这将完成这项工作。