Notification icon (status icon) does not show up in GNOME 3.24

[moma]

Hello,

The systray icon is not visible in the GOME 3.24 desktop. GNOME usually shows status icons (as a drawer) at the lower, left corner of the desktop. The "Show icons on systray" option in the [Additional settings] has no effect.

The code of systray in audio-recorder is pretty old (from GTK2 era).

Recommended solution:
Please use the GtkStatusIcon class in GTK3.
https://developer.gnome.org/gtk3/stable/GtkStatusIcon.html

[moma (osmoma)]

The current solution is using Ubuntu^s App_indicator library. This worked until recently on my GNOME-desk, but not anymore. It is best to revert to GtkStatusIcon. AppIndicator is dying anyway because official development of Ubuntu^s Unity stopped?

[moma (osmoma)]

GNOME-desktop has an extension that displays and supports AppIndicator icons.
Ref: https://extensions.gnome.org/extension/615/appindicator-support/

With this extension, audio-recorder puts a small icons on the top, right corner of desk (like in Unity). Earlier, GNOME without this extension displayed an icon at the lower, left corner.