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Introduction to Clean Architecture

Mukul J. · 14 April 2021

Let’s talk about something that’s been bugging Android developers for ages - Clean Architecture. You know how everyone’s always like “Should I use MVVM? Or maybe MVP?” Well, let me tell you something cool - it’s not just about picking one and sticking with it.

Most go with MVVM because, well, it sounds fancy and everyone else is doing it. But here’s the thing - you don’t have to follow the crowd. You can pick whatever makes sense for your project. Today, we’re going to look at an architecture that’s perfect for big projects and actually makes your life easier.

Think about it - when you’re building an Android app, you’re dealing with a lot of moving parts. You’ve got your UI, your data, your business logic, and everything in between. It’s like trying to organize a messy room - you need a system!

That’s where Clean Architecture comes in. It’s like having separate drawers for your socks, shirts, and pants. Each piece of your app has its own special place, and everything stays neat and organized.

Separation of Concerns: Your code is split into different layers, each with its own job. It’s like having different departments in a company - everyone knows what they’re supposed to do!
Easy to Test: Because everything is separated, you can test each part without worrying about the others. It’s like checking if your car’s engine works without having to drive the whole car.
Scalable: When your app grows (and it will!), you won’t be pulling your hair out trying to add new features. Everything has its place, and adding new stuff is a breeze.
Team-Friendly: New team members can jump in and understand what’s going on without getting lost. It’s like having a well-organized kitchen where everyone knows where to find the spoons.

Clean Architecture follows something called SOLID principles. These’re guidelines to make your code better:

Single Responsibility: Each class does one thing, and does it well
Open/Closed: Easy to add new features without breaking old ones
Liskov Substitution: Different parts can be swapped out without problems
Interface Segregation: Keep things simple and focused
Dependency Inversion: High-level modules don’t depend on low-level ones

Remember, the goal isn’t to make your code look fancy - it’s to make it work well and be easy to maintain. Clean Architecture is like having a well-organized toolbox - everything has its place, and you can find what you need when you need it.

Thank You!