iOS Interview Prep 6 — Dependency Injection

The purpose of this interview preparation series is to assist you in quickly refining your interview skills and thoroughly preparing for the typical questions asked during an iOS interview. If you find it useful, please leave a comment or tap the like button.

Photo by Igor Miske on Unsplash

Interview Questions

1. What is dependency injection, and why is it useful?
2. Can you give an example of how dependency injection is used in iOS?
3. What are the different types of dependency injection (constructor injection, setter injection, etc.), and when should each type be used?
4. How can dependency injection be used to improve the testability of an iOS app?
5. Can you discuss some common challenges or pitfalls that arise when using dependency injection in iOS development, and how to avoid them?
6. What are some popular iOS dependency injection frameworks, and what are their key features and advantages?
7. Can you discuss some best practices for using dependency injection in iOS development?

Inversion of Control

Inversion of control is a software design pattern that focuses on the transfer of control from the developer to the framework. The framework is then responsible for…