java - 如何将应用程序添加到系统托盘

Question

我想在窗口关闭时将应用程序添加到系统托盘(类似于 Google Talk 应用程序)。然后，当我单击系统托盘中的打开图标时，应用程序窗口再次变为 Activity 状态。我怎样才能在Java中做到这一点？

final SystemTray tray = SystemTray.getSystemTray();
Image image = Toolkit.getDefaultToolkit().getImage("images.jpg");
final TrayIcon trayIcon = new TrayIcon(image);
try {
   SystemTray.getSystemTray().add(trayIcon);
} catch (AWTException e2) {
   e2.printStackTrace();
}

this.addWindowStateListener(new WindowStateListener() {
   public void windowStateChanged(WindowEvent e) {
      if (e.getNewState() == EXIT_ON_CLOSE) {

         trayIcon.addMouseListener(new MouseAdapter() {
            public void mouseClicked(MouseEvent e) {
               setVisible(true);
            }
         });
         setVisible(false);
      }
   }
});

Answer 1

您已正确设置DefaultCloseOperations

myFrame.setDefaultCloseOperation(JFrame.HIDE_ON_CLOSE)

此代码行与 myFrame.setVisible(false) 相同，然后从 JPopupMenu 恢复 JFrame 仅调用 myFrame.setVisible(true)