Weather App

A modern Weather App built with Jetpack Compose, following Clean Architecture principles. The app fetches real-time weather data using the OpenWeatherMap API and displays current weather conditions, a 5-day forecast, and allows users to switch between Celsius and Fahrenheit.

Features

• 🌤 Search for Cities: Find weather updates for any city.
• 🌡 Current Weather: Displays temperature, weather condition, humidity, wind speed, pressure and weather icon.
• 📅 5-Day Forecast: View upcoming weather conditions.
• 🔄 Temperature Unit Toggle: Switch between Celsius and Fahrenheit.
• 🌓 Dark Mode: Supports light and dark themes.
• ❌ Error Handling: Graceful handling of API failures.

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Upcoming Features

• 🌍 Map View: Visualize the city’s location on a map (Bonus feature).
• 📶 Offline Caching: Stores weather data for offline access (Bonus feature).
• 🌓 Dark Mode Toggle: Allow users to manually switch between light and dark themes.

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Tech Stack

• UI: Jetpack Compose (Material 3, Compose Navigation)
• Architecture: MVI + Clean Architecture
• Networking: Retrofit + Moshi (KSP for JSON parsing)
• Concurrency: Kotlin Coroutines + Flow
• Dependency Injection: Hilt
• Testing:
  • Unit Tests (ViewModel, Repository)
  • UI Tests (Compose Testing)
  • Mockk for mocking dependencies

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Modules

• app - Main module containing UI and navigation.
• designsystem - Contains custom theming and reusable UI components.

Data Flow

1. UI (Compose) - Displays weather data.
2. ViewModel - Fetches weather data and handles state.
3. Repository - Manages API and caching logic.
4. Data Source - Fetches data from OpenWeatherMap API using Retrofit.

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🔒 Secure API Key Storage

The API key is stored securely using C++ (JNI):