title: Presenting a modal from a UITabBarController
body: <p>Similar to Instagram and other popular apps, I'd like one of the buttons in my UITabBarController to present its view controller as a full-screen modal instead of a normal tab. I've used Storyboards to connect the UITabBarController to all of its child view controllers and I can't figure out how to present the one view controller as a modal. I found some other questions on here asking about the same thing but they seem to be assembling the tab bar manually instead of using segues like I did. Is this even possible the way I'm doing it?</p>