iOS Developer Interview Questions
How would you add a shadow to one of your views?
Suggested approach: In UIKit, all view layers have options for shadow opacity, radius, offset, color, and path. In SwiftUI, you can use the shadow() modifier. This would be a good time to mention to relative cost of dynamic shadows and how rasterizing layers in UIKit helps.
Estimated difficulty: Easy
See the full list of iOS interview questions
Important notes
- There are over 150 interview questions in the system. Once you've read the question and come up with a suitable answer, try reading my suggested approach and see if it helps you add more detail.
- These questions are not designed to be hard; a good interviewer is more interested in generating discussion that lets your ability and interests shine through.
- If you answer a question with "yes" or "no" you've missed the point – interviewers prefer you to provide reasoning, explanation, or detail, so try to elaborate with examples!
- If you're looking for detailed technical questions about the language, you should try my Swift tests instead – there are multiple challenges that will work your brain hard.
- For a whole series of coding challenges, I wrote the perfect book for you: Swift Coding Challenges.
Related questions
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- What are the advantages and disadvantages of SwiftUI compared to UIKit?
