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SwiftUI
SwiftUI interview questions
SwiftUI is the default for new iOS work, so senior interviews expect architecture-level answers, not just view syntax. This overview links the deep dives.
What senior SwiftUI interviews cover
Expect state management and data flow (@State, @Binding, @StateObject, @Environment, and Observation), the migration from ObservableObject to @Observable, navigation with NavigationStack and deep links, performance and unnecessary re-renders, and when to drop to UIKit. Interviewers want trade-offs and ownership reasoning, not memorized property wrapper definitions.
How to answer at a senior level
Frame answers around state ownership and the single source of truth: who owns the data, who can mutate it, and how changes flow to the view. Talk about identity and diffing when discussing performance, and about decomposing large views. Acknowledging where SwiftUI still needs UIKit reads as experienced, not evasive.
Go deeper than a summary
Share Your Screen works topics like this through in full: 75 solved Swift problems with tests, 9 real case studies, and 7 annotated mock interviews, so you rehearse the live round instead of just reading about it.
Frequently asked
What SwiftUI topics matter most in interviews?
State and data flow, Observation and @Observable, navigation, performance and re-renders, and knowing when UIKit is still the right tool.
How senior should my SwiftUI answers be?
Focus on state ownership, data flow, and trade-offs rather than reciting property wrappers. Architecture-level reasoning is what senior interviews reward.