Clean Architecture Using Koin

A sample Android application built using MVVM Architecture, Koin for Dependency Injection, Kotlin Flow, and Room Database. The app fetches product list from FakeStoreAPI(https://fakestoreapi.com/) and supports caching for offline access.

Features

Clean Architecture with separate layers:

• Data Layer: Handles API calls and local database operations.

• Domain Layer: Contains business logic and use cases.

• Presentation Layer: Manages UI and ViewModel logic.

• Room Database for local caching.

• Retrofit for network requests.

• Kotlin Flow for reactive data streams.

• Koin for dependency injection.

• GridView for presenting product details in a grid format.

Architecture Overview

Presentation Layer

• ViewModel
• Composable UI

Domain Layer

• Entiry
• Repository
• UseCase (Business Logic)

Data Layer

• RepositoryImp
• Retrofit API
• Room Database

Tech Stack

• Language: Kotlin

• Architecture: MVVM

• Networking: Retrofit

• Dependency Injection: Koin

• Database: Room

• Reactive Programming: Kotlin Flow

• Jetpack Compose: For UI

#Installation

Clone the repository:

git clone https://github.com/your-username/fake-store-app.git

Open the project in Android Studio.

Sync Gradle.

Run the application on an emulator or device.

Code Structure

Data Layer

• Entities: ProductEntity

• DAO: ProductDao

• API: ProductApi

• Repository Implementation: ProductRepositoryImpl

Domain Layer

• Use Case: GetProductUseCase

Presentation Layer

• ViewModel: ProductViewModel

• UI: ProductScreen

Dependencies

dependencies {
    implementation "org.jetbrains.kotlin:kotlin-stdlib"
    implementation "androidx.core:core-ktx"
    implementation "androidx.lifecycle:lifecycle-runtime-ktx"
    implementation "androidx.lifecycle:lifecycle-viewmodel-ktx"
    implementation "androidx.room:room-runtime"
    kapt "androidx.room:room-compiler"
    implementation "androidx.compose.ui:ui"
    implementation "androidx.compose.material:material"
    implementation "androidx.activity:activity-compose"
    implementation "com.squareup.retrofit2:retrofit:2.9.0"
    implementation "com.squareup.retrofit2:converter-gson:2.9.0"
    implementation "io.insert-koin:koin-android"
    implementation "io.insert-koin:koin-core:3.1.2"
    implementation "androidx.gridlayout:gridlayout:1.0.0"
}

Screenshots

Add screenshots of the app here.

License

This project is licensed under the MIT License - see the LICENSE file for details.

Contributions

• Contributions are welcome! Feel free to open issues or submit pull requests.

• Acknowledgments

• FakeStoreAPI(https://fakestoreapi.com/) for providing the sample API.

• The Android community for amazing resources and libraries.