The UIKit framework provides a wide range of functionality and is used in every single iPhone and iPad application. It is the basis for a wide range of functionality: application lifecycle, touch and event handling, text editing and layout, animations, views, windows, controls, and higher level components such as UIGestureRecognizer and UICollectionView.Your responsibilities will include working closely with the HI design team on new UI concepts and adding features to existing components that complement the future iterations of iPad and iPhone hardware. In addition, you will work multi-functionally with many application developers inside Apple to define the next set of UIKit features and corresponding APIs.