Show and Hide Bottom Toolbar in

视频地址https://www.youtube.com/embed/zlZLjQN-kTc

Video Tutorial

1. Add first View Controller Segue to new View Controller
2. Add Bar Button Item on first View Controller and set target-action
3. code in action:method add self.porformSegueWithIdentifier
4. setToolbarHidden(_ hidden: Bool, animated animated: Bool)
5. Or set in interface builder

Show and Hide Bottom by code
Show and Hide Bottom set in interface builder

Demo Project on GitHub

More in Segue

Simpler way：

Adding a Segue Between Scenes in a Storyboard

Another way：View Controller segue to View Controller,
your can something more in target-action method.

IOS7, Segue and storyboards - How to create without a button?