Building Adaptive Apps with UIKit

Building your apps to be flexible enough to be used in different orientations and on different devices is crucial. Learn about the enhancements that have been made to UIKit view controllers to make it even easier for you to adapt your user interface to any size or orientation. See how to effectively use size classes to ensure a great user experience for any context and find out how Xcode can help you create and test your apps for different sized devices.

WWDC 2014 - Session 216 - iOS