iOS Developer Interview Questions
What class would you use to list files in a directory?
Suggested approach: Hopefully your answer was FileManager. If your interviewer looked like they wanted more, you might want to talk about sandboxing: important directories such as documents and caches, using App Groups to share data between targets in your app, and more.
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
- How much experience do you have using Core Data? Can you give examples?
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What is the purpose of
NotificationCenter? - What class would you use to play a custom sound in your app?
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Can you name at least three different
CALayersubclasses? - How much experience do you have using Core Graphics? Can you give examples?
