Why are Swift optionals better than the way Objective-C handles nil? Suppose you have an Employee and a Department object, and they retain each other strongly. Is this a problem? If so, how do you fix it? Explain the concept of delegation: problems it's addressing, how it works, benefits. How many different ways do you know to lay out a UIView? What is a race condition? What constructs do we have to prevent them in iOS?
Describe your projects. Any previous Experience. JSON, API, Swift related questions.
There was a question that used its own language syntax to sort an array. Nothing too strenuous really!
Whats your status and how old are you?
1) How would you make a chat app
Lifecycle of iOS application
Why did you choose mobile development?
Basic googled questions which you can find on top links when you search "IOS developer Interview Question"
The four basic concepts of ood programming
all iOS releted basics questions
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