Book Image

The Ultimate iOS Interview Playbook

By : Avi Tsadok
Book Image

The Ultimate iOS Interview Playbook

By: Avi Tsadok

Overview of this book

As an iOS developer, you must possess a diverse skill set encompassing Swift coding, design knowledge, and mastery of development tools. And while the demand for iOS developers remains high, the competition for landing your dream job has intensified in recent years. Being a skilled iOS developer is no longer enough — acing interviews is now just as essential as having technical expertise. In The Ultimate iOS Interview Playbook, you'll discover innovative ways to stand out as an iOS developer and pass every job interview. It will guide you to build your developer brand and present your skills to potential employers. This comprehensive guide covers over 100 interview questions, from Swift fundamentals and frameworks to complex design patterns and app architecture. You'll learn how to approach coding assessments like a pro and avoid red flags that could hinder your chances of success. Drawing from the author’s experience of interviewing hundreds of iOS developers and having been a candidate themself, this book addresses the challenges of showcasing your skills and knowledge within a limited timeframe. By the end of this book, you'll be ready to excel in any iOS interview, demonstrating your strengths and confidently tackling even the most challenging questions, ultimately paving the way to secure the job you've always wanted.
Table of Contents (20 chapters)
Part 1: Everything about Interviews
Part 2: Swift Language and Coding
Part 3: The Frameworks
Part 4: Design and Architecture

Understanding everything about UIViewController

UIViewController is a core class in iOS development and behaves as a building block for most iOS apps that use UIKit.

UIViewController has multiple roles in iOS development:

  • It is the C in the MVC pattern: If the UIView is the V (View) and our model is the M, the UIViewController is the one that coordinates between the presentation layer and the business layer. That role affects many of the features UIViewController has, such as life cycle events and memory management functions.
  • Handling life cycle events: We explained this role of UIViewController in the previous section. UIViewController has another function: to manage the various life cycle events on the screen. By creating subclasses of UIViewController, we can take advantage of its different methods to handle all stages of a screen’s life cycle.
  • Leading player in the navigation system: We can present UIViewController above another UIViewController or push...