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

Expertise with the SwiftUI life cycle

We can’t build UI screens without fully understanding the UI life cycle. States and modifiers such as onChange and onAppear are integral to the SwiftUI life cycle and essential to building a functional application.

We already went on some of the things related to the SwiftUI life cycle in the previous sections – for example, observed objects and states are part of the SwiftUI life cycle. Now, we must understand how they work when a view needs to reload, change, or move to a new screen.

“How does SwiftUI handle state changes during the view life cycle?”

Why is this question important?

SwiftUI’s approach to state management differs from traditional UIKit or AppKit approaches, and it’s crucial to understand how SwiftUI handles state changes and updates to avoid unexpected behavior in our app.

What is the answer?

SwiftUI generates the view hierarchy based on the current state. SwiftUI generates...