We use cookies to ensure you have the best browsing experience on our website. Please read our cookie policy for more information about how we use cookies.
  1. Skills Directory
  2. iOS

iOS

Intermediate

iOS is a mobile operating system developed by Apple, used in devices such as iPhones, iPads, and iPod Touch. Swift is the official programming language for iOS development. Swift is a powerful and intuitive, open-source, general-purpose programming language with strong type inference and safety features, designed to work seamlessly with Apple’s frameworks and platforms.
This level evaluates ability to build dynamic, data-driven apps with API integration, persistence, background processing, and adaptive UI.


Key Competencies:

  1. Table and Collection Views – Building scrollable, reusable list UIs with UITableView and UICollectionView.
  2. Networking – Fetching and decoding remote data using URLSession, and handling errors gracefully.
  3. Data Persistence – Using UserDefaults, file storage, and basic Core Data for saving local data.
  4. Concurrency – Executing background tasks with GCD or OperationQueue; updating UI on the main thread.
  5. Adaptive UI & Accessibility – Supporting multiple devices, Dynamic Type, VoiceOver, and localization per HIG.