Clean Architecture in Android

Clean Architecture is a software design philosophy that separates the elements of a design into ring levels. It's particularly useful for Android applications as it helps maintain a clean separation of concerns.

Core Principles

• Independence of Frameworks
• Testability
• Independence of UI
• Independence of Database
• Independence of any external agency

Layers

1. Presentation Layer (UI)
2. Domain Layer (Business Logic)
3. Data Layer (Repositories)

Implementation

// Domain Layer
interface UserRepository {
    suspend fun getUser(id: String): User
}

// Data Layer
class UserRepositoryImpl : UserRepository {
    override suspend fun getUser(id: String): User {
        // Implementation
    }
}

// Presentation Layer
class UserViewModel(
    private val repository: UserRepository
) : ViewModel() {
    // ViewModel implementation
}

Benefits

• Maintainable code
• Testable components
• Scalable architecture
• Clear separation of concerns

Conclusion

Clean Architecture provides a solid foundation for building maintainable and scalable Android applications.