Spover

Display an overlay on navigation apps showing the speed limit information and current speed.

light mode	dark mode

Features

Autostart

• Spover starts the overlay automatically as soon as you start the navigation on GMaps

Nightmode

• adapt theme to current environmental brightness

Caching speed limit data

• manual caching speedlimit data for areas without network connection

Warnings

• sound when user is driving over speedlimit
• different overlay color depending on how much faster/slower than the speedlimit the user is driving

Architecture:

• Android SDK (detect navigation start)
  • Service to display an UI over other apps
  • HttpsUrlConnection to fetch data from OpenStreetMaps API
  • Room database library to save speed limit data locally
• Jackson library to parse XML response
• JUnit for testing

Way mapping

Notes

To build the app, a file called keys.xml is required to be in app/src/main/res/values. This file should have the following content:

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string name="google_maps_api_key">--- Valid Google Maps API Key ---</string>
</resources>

CREDITS

warning sound: https://freesound.org/people/thisusernameis/sounds/426888/

open street map: https://www.openstreetmap.org