nkrebs13 / nyc-car-crash

Android app to show the last 3 months of car crashes in NYC

NYC Crashes

Shows the car crashes in the last 3 months in the NYC area as reported by [NYC OpenData] (https://data.cityofnewyork.us/Public-Safety/Motor-Vehicle-Collisions-Crashes/h9gi-nx95). This repository demonstrates modern Android development using the latest best practices, tools, and guidelines.

🚧 Under construction 🚧

This app (in its current state, anyway) was made as a prompt as part of an interview process (read: this app was made with some self-imposed time constraints)

Requirements

• Android Studio or Android Build Tools
• Create app/app.properties with 2 keys:
  • API_KEY is for the crash data. This can be retrieved from data.cityofnewyork.us.
  • MAP_KEY is an API key for Google maps docs

Tech Stack

• MVVM app architecture
• Room for on-device local storage
• Jetpack Compose for UI
• Koin for dependency injection
• Coroutines + Flow for asynchronous operations
• Ktor for networking
• MPAndroidChart for charting

Diagram of data flow:

Light Mode	Dark Mode

Known issues

These is currently an issue using TileOverlay with Jetpack Compose that results in performance issues and inconsistent loading of the map areas. Zoom in and out of the map can fix the map loading issues. The performance issues can be slightly improved by ensuring to launch the "release" mode of the application.