java show hide frame

Question

i have a java application that's supposed to just popup .. let me do something and vanish. I have a nice little JFrame GUI working for me.

Problem is bringing it back. I want to use a 'global shortcut' to bring it back. I'm on Ubuntu 12.04 with standard jdk.

I have a shortkey assigned to an sh file which does: cd /path/to/app && java Driver

this, ofcourse, launches the app everytime. Is there a way i can send a signal to the running app (signal in the form of an .sh file which i can assign a shortcut to) to frame.setVisible(true) on? You know, to avoid relaunching the app everytime?

score 1 · Answer 1 · edited May 23 '17 at 12:21

1

I'm on Ubuntu 12.04 with standard jdk.

not ***nix user, standard ways is to use SystemTray with JPopupMenu
by default is implemented JFrame.setDefaultCloseOperation(HIDE_ON_CLOSE) in API
only to call JFrame.setVisible(true) from JMenuItem added to JPopup
or from MouseEvent added to TrayIcon

edited May 23 '17 at 12:21

Community

1
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answered Apr 02 '13 at 19:53

mKorbel

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Thanks korbel. Problem is, even with windows (with system tray available), i'd have the same issue. See, i'm trying to 'show' this box using a global short-cut-key like Ctrl-Alt-S or similar. Any more ideas? – saGii Apr 04 '13 at 03:48
Hi everyone here and thanks for trying to answer my weird question. I managed to hack-solve the problem. I created a global script which would touch a file somewhere, and an independent running thread inside my java code would check for file existence every 500ms, would set the form Visible and delete the file. – saGii May 14 '13 at 12:24

java show hide frame

1 Answers1