@hhariri To hide the primary stage you can just override the

start

function in the

App

class and hide it from there.

Hang on, let me grab some example code 🙂

@edvin so just a dummy empty view I guess as the Main should work then right? And hide it initially?

@hhariri It doesn't have to be a dummy view, it could be the view you eventually want to show when you activate it via the tray icon for example.

@User uploaded a file: Hide stage on app start

That first example will actually flicker, since

super.stage(stage)

will show it. To avoid the flicker, you can instead override `shouldShowPrimaryStage`:

@edvin Thanks. This is basically what I have

@User uploaded a file: Better option

@User uploaded a file: Untitled

That's basically what I do as well, but switch to

shouldShowPrimaryStage

to avoid the flicker 🙂

sweet thanks!

You're welcome 🙂

now to figure out how to get the damn thing to show in the right position 🙂

Where does it show up? You have multiple screens and it shows up on the wrong one?

yeah. I activate it on one of the external monitors but it always defaults to the laptop one

So the tray icon action is performed on the external monitor?

yep

And that's what should dictate that it should open on the same monitor?

That might be tricky.. detecting the screen in AWT upon button click, and then "converting" that to the same screen in JavaFX. Interesting 🙂

Yes, ideally it should open on the monitor where it’s activated.

Interesting I can live with. Impossible will kind of kill my whole proof of concept 🙂

Hehe.. I see. I wonder if AWT even has such an API, but it might be possible to detect the position of the cursor and find the screen based on that from JavaFX perhaps.

@jonathan If you have time - do you know how to detect what screen the cursor is on, and make sure a stage shows up on that screen?

I'm thinking maybe

Screen.getScreensForRectangle()

based on the mouse coordinates perhaps.

Thanks. It’s good to know it’s not some obvious call I’m missing. Going to investigate what you’ve mentioned and see if it’s viable.

Let me know if you can't find a solution, I'd love to take a look if not. This sort of thing can come in handy for sure 🙂

@hhariri Are you using one or more HiDPI screens? That would make this even more awkward, because it seems the AWT

MouseInfo.getPointerInfo().location

coordinates are in native pixels, while the JavaFX

Screen.getScreens()

returns coordinates according to the scale factor. You might need to convert between the two 😞

@edvin I don’t have HiDPI but that does raise another issue then 😕

I saw the original tray question was on macOS, but bookmark this if you're using the AWT call on Ubuntu. You can't get the gray background off of your AWT icon in order to match the other system tray icons. I have some GTK C code that creates an app indicator, but it's for unity and GTK3. http://bugs.java.com/bugdatabase/view_bug.do?bug_id=6453521

We got it working at least 🙂