thanks for your reply! I already tried this solution once. The problem with that is that UIViewAnimationOptions does not offer a animation type that looks like a modal (over full screen) segue that comes from the bottom. do you know how i could achieve something like this?
Remove the UIView animation block and change it simply with the following statement: appDelegate.window?.rootViewController?.presentViewController(appDelegate.tabBarController!, animated: true, completion: nil)
The code above will present the tab bar controller modally and hence you will get that animation from the bottom as you want 🙂