Whenever @row changes or which row is before @row changes this is called, which lets you update the header on @row.
You may remove or set a new one via [method@Gtk.ListBoxRow.set_header] or just change the state of the current header widget.
See Implementation
Whenever @row changes or which row is before @row changes this is called, which lets you update the header on @row.
You may remove or set a new one via [method@Gtk.ListBoxRow.set_header] or just change the state of the current header widget.