iOS Developer Interview Questions
How much experience do you have using Core Image? Can you give examples?
Suggested approach: Some developers confuse Core Graphics and Core Image, which is a mistake – they are quite different. Core Image is used less often than Core Graphics, but is helpful for filtering images: blurring or sharpening, adjusting colors, and so on.
For bonus points, talk about Core Image being able to apply multiple effects efficiently, and how it can also generate some kinds of images too.
Estimated difficulty: Intermediate
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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.
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