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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

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