VictorKabata / Notflix

Kotlin Multiplatform playground

Notflix

Notflix is a Kotlin Multiplatform app that demonstrates cross-platform development using a single codebase and Compose Multiplatform for a consistent UI across Android, iOS and desktop(Linux, Windows & macOS) devices.

It consumes the TMDB API to fetch movie data and display it on all platforms.

Note

This repository is under constant development/refactor since the project is designed to showcase the basics of Kotlin/Compose Multiplatform and is not intended for production use

Table Of Content

• Screenshots
• Getting Started
  • Prerequisite
  • Installation
• Libraries
• Related Resources
  • Videos 📽️
  • Articles/Blogs 📖
  • Sample Projects 🤖

Screenshots

Android

iOS

Desktop

Getting Started

Prerequisite

• JDK - Required for Android development.
• Android Studio - For Android development and project management.
• Xcode - For iOS development and project management.
• Kotlin Multiplatform Plugin- In Android Studio, select Settings/Preferences | Plugins, search Marketplace for Kotlin Multiplatform, and then install it.

Installation

• Clone the repository from GitHub:

git clone https://github.com/VictorKabata/Notflix.git

To install the android application:

• Open the project in Android Studio and connect your android device/emulator.
• Configure the TMDB API key in the local.properties file.

api_key=<YOUR TMDB API KEY>

• Sync the Gradle project to download dependencies.
• Run the gradle command below from Android Studio terminal to build and install the android application on the connected android device/emulator:

./gradlew installDebug

To install the iOS application:

• Open the iOS project from XCode and connect your iOS device/emulator.
• Run the project.

To install the desktop application:

• Open the project in Android Studio and run the gradle command below to build and install the application on the desktop:

gradlew desktopRun

Project Structure

The application has two main modules:

1. composeApp: This is the core module containing the shared Kotlin Multiplatform code for network, caching, and UI logic.

• androidMain: Contains Android-specific code, primarily serving as an entry point for the Android application. This directory includes the MainActivity class, application-level configuration, and Android-specific dependencies or initialization.

• iOSMain: Contains iOS-specific code, primarily serving as an entry point for the iOS application. This directory includes the ContentView class, application-level configuration, and iOS-specific initialization for Koin.

• desktopMain: Contains desktop-specific code, primarily serving as an entry point for the desktop application. This directory includes the main application class, window creation, and desktop-specific dependencies or initialization.

• commonMain: Contains the core business logic, data access, and UI components that are shared across all platforms.

  • domain: This package houses the domain layer, which defines the business logic and entities of the application. It typically includes interfaces, data classes, and utils.
  • data: This package houses the data layer, which is responsible for fetching and caching data. It might include repositories, data sources, and network clients.
  • ui: This package houses the UI components that are shared across all platforms. These components can be implemented using Compose Multiplatform, allowing for a consistent user experience.
  • di: Contains the dependency injection setup, managing the creation and provision of dependencies throughout the application.

2. appiOS: This module houses the iOS-specific app code, serving as the entry point for the iOS application, providing the necessary configuration and integration with the shared composeApp module.

Libraries

• Kotlin Multiplatform - The foundation of the project, enabling shared code across platforms.
• Compose Multiplatform - Enables building consistent UI components for Android, iOS, and desktop.
• KotlinX Coroutines - Manages asynchronous operations for efficient app performance.
• Datastore - Provides a mechanism for storing and retrieving key value pairs like user preferences.
• Koin - A dependency injection framework for managing dependencies throughout the application.
• kotlinx.serialization - Enables serialization and deserialization of data objects.
• Ktor - A multiplatform HTTP client for making network requests and handling responses.
• Napier - A logging library for providing detailed logs during development.
• kotlinx.datetime - A multiplatform Kotlin library for working with date and time.
• Room - Provides a persistence layer for storing data locally.
• Paging - Enables efficient handling of large datasets for pagination in UI components.
• BuildKonfig - Supports embedding values from gradle file.
• Coil3 - Compose Image library for Kotlin Multiplatform
• Jetpack Navigation - Provides navigation components for handling UI transitions within the app.
• KMP Palette - Provides tools for working with colors on multiple platforms.
• Ktlint: For enforcing code style consistency.
• Detekt: For static code analysis and quality checks.

Related Resources

In this section I've included some resources ie. articles and GitHub repositories that i used to learn about kotlin multiplatform:

Videos 📽️

• Your First Kotlin Multiplatform Mobile App Tutorial
• Sharing Code between iOS and Android with Kotlin #1

Articles/Blogs 📖

• Kotlin Multiplatform Hands-on: Networking and Data Storage
• KaMPKit General Architecture
• Using Koin in a Kotlin Multiplatform Project
• Create your first cross-platform mobile app – tutorial - Learn how to create and run your first Kotlin Multiplatform Mobile application.
• Kotlin Multiplatform. Very beginner’s guide (part 1-3)
• Using Realm persistence library in a Kotlin Multiplatform project

Sample Projects 🤖

• KMM Sample - A sample project for experiments with Kotlin Multiplatform mobile.
• Fantasy Premier League - Kotlin Multiplatform project with Jetpack Compose, Compose for Desktop and SwiftUI clients (and using Ktor for remote API requests and Realm for persistence).
• KaMPKit
• People In Space - Minimal Kotlin Multiplatform project with SwiftUI, Jetpack Compose, Compose for Wear OS, Compose for Desktop, Compose for Web, and Kotlin/JS + React clients along with Ktor backend.
• Poetree - Poetree is a minimalistic poetry app that helps people freely access art from a global community full of poetry lovers.