我从here看到如何使用托盘.所以我用这种方式使用它：
private void checkTray() throws IOException {
if (SystemTray.isSupported()) {
System.out.println("system tray supported");
tray = SystemTray.getSystemTray();
Image image = ImageIO.read(new FileInputStream(new File("logo.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);
}
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() == WindowEvent.WINDOW_CLOSING){
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() == 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");
}
}
});
}
并在构造函数中：
this.setDefaultCloSEOperation(JFrame.ICONIFIED);
最佳答案
我解决了这个问题：
原文链接：https://www.f2er.com/java/438055.htmlthis.addWindowListener(new WindowAdapter(){
public void windowClosing(WindowEvent windowEvent) {
setExtendedState(JFrame.ICONIFIED);
}
});
