Mastering iOS Development: Mock Interview with Atul!
New iOS Mock Interview with Atul Dhiman!
We dive deep into Swift core concepts such as optionals, closures, protocols, collections, and memory management (ARC), along with modern concurrency using Swift’s new actor model.
The discussion also explores the UIKit lifecycle, view controller management, and how user interfaces are structured and maintained in real-world applications.
In the second half of the interview, we focus on practical architecture and system design through the example of building a chat application.
👉 If you’re preparing for an iOS developer job interview or just want to improve your Swift skills, this video is for you.
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Timeline
00:00 Introduction to Mock Interview Process
02:32 Candidate Background and Experience
05:17 Exploring Swift and Its Features
08:06 Understanding Optionals in Swift
10:38 Closures and Their Usage
13:50 Memory Management and Retain Cycles
17:30 Working with Arrays and Collections
22:10 Actors in Swift and Concurrency
25:22 Protocols, generic protocols
30:10 Feedback on Swift part
36:12 UIKit section: UIViewController lifecycle
40:30 UI Hierarchy and Touch Mechanism
43:06 App without UIWindow?
44:30 Layer vs UIView
45:07 Auto Layout and UI Updates
47:28 iOS 26 UIKit Updates
48:50 Feedback on UIKit part
59:20 System Design: Building a Chat
1:16:13 Final feedback and wrap up
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