iOS Interview Questions and Answers with Sample Code

Richard Topchii presents a mock interview covering ten common iOS developer interview questions with code samples.

Top 10 most asked interview questions for an iOS Developer role, in a form of a mock interview. Comment, if you've been asked some of these questions or if you'd like to see some other question in my next video. The code from the video: github.com/richardtop/ios_interview Swift Type System Lecture - youtu.be/-61sV7wA7rw Subscribe and ring the bell to not miss next tutorials and iOS-related content. Have a suggestion? Leave it in the comments. Follow Richard on social media: Telegram: t.me/richardtop GitHub: github.com/richardtop/ Twitter: twitter.com/richardtop_ios Follow Daniel on social media: danielegerev.com/ twitter.com/iDanb0 github.com/idanbo Timecodes: 0:00 - Overview 0:21 - Daniel, the interviewer 1:50 - Why these questions? 2:30 - View Controller Life Cycle 11:55 - The difference between a struct and a class 18:20 - The difference between "frame" and "bounds" properties of an UIView 25:45 - Protocol Oriented Programming 32:03 - "defer" statement coding question 37:00 - GCD / DispatchQueue coding question 46:36 - MVC architecture (Model, View, Controller) 52:19 - "weak" and "unowned" keywords 56:54 - "lazy" keyword 1:01:52 - "@escaping" closure attribue and non-escaping closures 1:05:03 - Summary and feedback Links from the video: View Controller Life Cycle developer.apple.com/documentation/uikit/uiviewcontroller What’s the difference between a struct and a class docs.swift.org/swift-book/LanguageGuide/ClassesAndStructures… github.com/apple/swift/blob/main/stdlib/public/core/Array.sw… developer.apple.com/swift/blog/?id=10 What’s the difference between .frame and .bounds property of a UIView developer.apple.com/documentation/uikit/uiview/1622621-frame What is a Protocol Oriented Programming developer.apple.com/videos/play/wwdc2015/408/ Swift Type System Introduction - Richard's lecture video youtu.be/-61sV7wA7rw "defer" statement coding question docs.swift.org/swift-book/ReferenceManual/Statements.html MVC architecture (Model, View, Controller) developer.apple.com/library/archive/documentation/General/Co… developer.apple.com/library/archive/documentation/General/Co… View-Controller.html#//apple_ref/doc/uid/TP40010810-CH14 developer.apple.com/library/archive/featuredarticles/ViewCon… "weak" and "unowned" keywords kelvas09.github.io/blog/posts/ios_weak_unowned/ developer.apple.com/documentation/foundation/urlsession "lazy" keyword stackoverflow.com/questions/38141298/lazy-initialisation-and… "@escaping" closure attribue and non-escaping closures kelvas09.github.io/blog/posts/ios-escaping/