Crime Map App [ 🚧 Work in progress 👷‍♀️ ⛏ 👷 🔧️ 🚧 ]

Prerequisites

Before you run the application, make sure you add google maps API Key in the following places:

• 1

/android/app/src/main/AndroidManifest.xml =>  [ <meta-data android:name="com.google.android.geo.API_KEY"android:value="API_KEY"/>]

• 2 Add your api key in the .env file found in lib/assets:

GOOGLE_MAP_API_KEY=Your API Key

Background

Develop an application that visualizes crime loations:

• Areas with less than 5 crime reports are marked with a green marker ,those with between 5 and 20 are marked with a yellow marker while those above 20 reports are marked with a red marker.

• Areas within 500 meters radius are categorized as one crime location and have a circle marking the areas with respect to number of crime reported.

• Adding a new area that is within 500 meter radius of an existing location will just update the crime report number else a new crime spot will be created.

• Users can upload images of the crime spots.

Point to note

Places search is set to Kenya only. To enable it in your country or to make it global,consider removing the restriction in /lib/src/data/services/places service file.

Tech-stack

• Tech-stack

  • Flutter - a cross-platform, framework for building mobile applications.
  • Dart - client-optimized language for fast apps on any platform.
  • Provider - A wrapper around InheritedWidget to make them easier to use and more reusable.(State management)
  • Google Sign in - A plugin to access Google Sign in.
  • Geocoding - A Flutter Geocoding plugin which provides easy geocoding and reverse-geocoding features.
  • Google Places - A Flutter package for handle google place api that place search and details and photos and autocomplete and query autocomplete requests
  • Cloud Firestore - Flutter plugin for Cloud Firestore, a cloud-hosted, noSQL database with live synchronization and offline support on Android and iOS.
  • Firebase Storage - Flutter plugin for Firebase Cloud Storage, a powerful, simple, and cost-effective object storage service for Android and iOS.

• Architecture

  • MVVM Architecture

Dependencies

All the dependencies (external libraries) are defined in a single place - pubspec.yaml file. This approach allows to easily manage dependencies and use the same dependency version across all modules.

Screenshots

The screenshot below shows the working application:

LogIn	Map Screen	Add Crime	Location Images

2021