UIViewController for dummies

UIViewControllers became harder to understand with Storyboards - there are lots of auto-layouts you might not handle.

Just a liitle hint to help debugging:

UIViewController's method invoke sequence is as below

• awakeFromNib
• viewDidLoad
• viewWillAppear
• viewWillLayoutSubviews
• viewDidLayoutSubviews
• viewDidAppear
• viewWillLayoutSubviews
• viewDidLayoutSubviews

So, if you have views building by code, make sure that storyboard layout will not break it into mess.