Question

I have a Java app that has an icon in the system tray.

How can I check if the tray (or tray icon) has current focus?

Tray and TrayIcon don’t seem to have .isFocused() or similar.

Is this possible?

Thanks!

Answer 1

Since TrayIcon supports both addMouseListener() and addMouseMotionListener() you should implement your listeners to care about the state of the selection/focus of the TrayBar..

you could try to see which events are fired when you focus it or unfocus. It depends on what you want to catch: if you want to see whenever the user hovers onto the icon you should try with mouseEntered or mouseExited, and so on. TrayIcon doesn’t inherit from any standard GUI component so I think this is the only way to work with it.

In addition I won’t rely too much of making it work cross-platform since probably these kinds of events are fired from the OS and sent to JVM that forwards them to the TrayIcon object but I don’t know how well this is implemented, just try it out by yourself.