UIKit & Auto Layout

Uses UIKit and Auto Layout at a basic level. Creates simple screens from designs. Understands the application lifecycle.

Independently implements complex screens with UIKit and Auto Layout. Optimizes performance and memory consumption. Works with asynchronous patterns.

Architects mobile application with UIKit and Auto Layout. Optimizes performance for low-end devices. Implements CI/CD for mobile development. Mentors the team.

Designs complex UIKit interfaces: custom UICollectionViewLayout for non-standard grids, compositional layout for heterogeneous content. Implements smooth animations via UIViewPropertyAnimator and Core Animation, optimizes scrolling through prefetching and cell reuse. Integrates UIKit components into SwiftUI via UIViewRepresentable.

Defines UI framework strategy for large iOS applications: UIKit to SwiftUI migration, transition period architecture, and hybrid approaches. Develops high-performance custom components: text engines on TextKit 2, custom rendering via Metal, and CALayer compositions for complex visual effects.