You can't set an identifier of a segue that's created between a UINavigationController
or a UITabBarController
. This is expected behaviour.
Segues between other view controllers should work OK though. Try selecting a different file and then return to the storyboard or try restarting Xcode (fixes a lot of annoying problems for me).
Edit based on comment:
If I understand your UI layout (the screenshot is a bit difficult to make out fully) and problem correctly...
You'd have to create a good old fashioned IBAction
method, hook up each UIButton
and call setSelectedIndex:
on the UITabBarController
.