Can I add some items for Submenu while the program is running?

[LeeeSe]

I cannot determine which items should be included in the Submenu during program initialization. It depends on the state of the computer at that time. After consulting the documentation, I found that currently, I can only add or remove an entire menu item.

Is there a way to add some items to the Submenu during the program’s runtime?

[amrbashir]

you can add/remove items from a submenu without a problem, for example:

let tray_menu = Menu::new(); // or Submenu::new();

let tray_icon = TrayIconBuilder::new()
    .with_menu(Box::new(tray_menu.clone()))
    .with_tooltip("system-tray - tray icon library!")
    .with_icon(icon)
    .build()
    .unwrap();

then later on in your program you can do

tray_menu.append();
tray_menu.remove();