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Clean architecture & SOLID principles for Android in Kotlin (Udemy.com)

Learn to implement Clean architecture in Android using SOLID principles and MVVM

Created by: Catalin Stefan

Last updated February 2026

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What you will learn

  • Clean architecture
  • SOLID principles
  • MVVM
  • Room database
  • Theoretical introduction
  • Practical application
  • Navigation
  • Dependency injection

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Overall Score : 88 / 100

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Course Description

Learn Clean Architecture and SOLID principles with this new course on Android development and Kotlin.

Most tutorials and how to's show you the basics of app building, but they don't show you how to use the latest technologies and libraries.

Most projects and jobs require you to know how to use the latest libraries. This is what this course is all about.

The purpose of this course is to give you a practical example of how to use Clean architecture, all while building a simple example app.


We will learn about:

  • Clean Architecture

  • Components and layers

  • SOLID principles

  • MVVM

  • Applying Clean architecture in an example app

  • Jetpack navigation

  • Room database

  • Dependency Injection

All of these topics are necessary to have a well rounded, scalable, robust and maintainable application. So we not only need to understand how they work, but also how they are implemented in practice and how they relate to each other. In this course we will go line by line, explain why we need it and what it does, so that you have a clear understanding of the complete process of building a modern Android app.

If you want to become an expert Android Developer, you need to know how to structure and build your applications correctly


Sign up today, and let's learn how to implement Clean architecture and SOLID principles in your projects.

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Instructor Details

Catalin Stefan

I am an avid learner and teaching enthusiast. I love creating videos and courses that enrich people's lives and help them have a better experience, both personally and professionally. 

I am an expert mobile application developer with over 10 years development experience. I enjoy making courses related to AI, software development and mobile apps, and want to share the knowledge I have acquired.

I create courses based on my professional experience. I hope to teach people skills that help them in their careers, allow them to acquire new skills and improve their personal relationships.

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Reviews

4.4

1,554 ratings on Udemy

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By Prajwal Maradi on 4/25/2026

This course helps in understaning MVVM and clean code architechture, but it is little bit oudated. * Need to update the couse with Jetpack compose instead of XML for UI. * Need to use compose navigation. * Need to use better version of Dependency Injection - Koin. Please update the couse to latest which will be more helpful.

By N Yuki on 8/31/2024

セクション2とセクション3を視聴したことで 『「Clean Architecture」に登場する 「entities」と「use cases」とは何か?』を少し理解できました。 この教材はAndroidとKotlinの基礎がある程度できている人向けで 万人にオススメできる教材かと問われるとそうではないですが AndroidとKotlinの基礎がある程度できている人であれば セクション2とセクション3は視聴する価値があると思います。 ---------------------------------------------------------------------- Having watched Sections 2 and 3 of In “Clean Architecture. 'entities' and 'use cases' that appear in 'Clean Architecture'?” I could understand a little bit about “what are ‘entities’ and ‘use cases’ in ‘Clean Architecture’”. This material is for those who have some basic knowledge of Android and Kotlin. I would not recommend this material to everyone. If you have some basic knowledge of Android and Kotlin, Section 2 and Section 3 are worth watching. Section 2 and Section 3 are worth watching.

By Valeria Rogatchevskikh on 2/28/2024

I liked the course as a refresher since I am an experienced Android Developer. Another aspect I liked is the course is relatively short and that allows to actually complete it in a reasonable amount of time and not be tempted to forget about it like some long courses, especially if you are like me with a limited attention span! Having to update some of the outdated code has been an additional challenge I have appreciated and it actually made the course more interesting. I have posted the complete code on github in case any beginner is struggling: https://github.com/valllllll2000/android-clean-architecture-course For those that comment that hilt or compose should be used: well the fun part could be to add them yourself as a challenge.

By 두순 최 on 2/20/2022

Concise and crucial contents, this is good to overlook whole skills and how to integrate them to your project structrure. It is very helpful to intermeidate or above developers who know the details of each skills used at this lecture. But for the beginners, it could not be enough to understand.

By Ruben Rojas on 9/10/2021

El curso se llama Clean Arquitecture & Solid, pero durante el curso no se explica con claridad cuales son los principios SOLID . Solo los menciona una vez pero no explica donde y cómo se están aplicando, lo mismo que con Clean Arquitecture ya que no se logra comprender completamente qué función cumplen los componentes que se agregan en el ejemplo práctico. Está bien como curso introductorio, pero creo que le falta mucho como para ser un curso definitivo.

By Anil S on 11/13/2020

Good course. However, I was looking more about how clean architecture works with both databases and network request. Also, some basics on how we can unit test such code would have been really great. Anyways, thanks for your effort. I at-least understand the basics of clean architecture to start with.

By Ana Luiza Lisboa do Nascimento on 10/21/2020

This is the first udemy course I ever finish. Catalin is a great teacher. Most of the times he explains his train of thoughts. Sometimes he skips something, but I don't think it's a bad thing. It forced me to pause and goole information and fix it better in my mind. This is not about being a super expert. This is about him showing you in a very simple and intuitive manner what path should you follow to get there. I've been working as an intern in android development for about 1 year and a half and I was very unmotivated. The project is bloated, the pressure is huge and I was just copying and pasting and not learning anything, not even liking the platform anymore. Catalin is helping me love android again and making me want to continue building my career in it. And I feel like I'm finally understanding the concepts doing his courses. Thanks!

By Devrath on 8/22/2020

I really liked the explanation of the Author. He is very clear in his explanation. All the tutorials of Author are vey good. Thank you so much. Recommendation for author: Please add a section of retrofit for this clean architecture, It will be more helpful :)

By Anonymized User on 4/24/2020

Really good explanation of not only clean architecture principles but also other parts of Android framework. As I didn't work with Android within last few years this was very useful for me. Thanks to this coure I refreshed some UI stuffs as well including the latest features like Navigation.

By Sami Nyman on 2/11/2020

Clearly presented with a good grasp on real life. Little more ideas on how the project structure would scale to bigger projects would be a great add-on. In big projects the module structure seems to be more feature oriented. How would it play out in this scenario? Also the role of the view-model presented as a non-domain-logic component could be second guessed. Little more info how the chosen solution lines up with SOLID would be useful. Now it is self evident and explained clearly in some parts, but not so much in others. Overall a good, clear and compact presentation of the topic. Good investment if you want some clear architectural example that is real life driven.

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