title: Integrate mapbox with Flutter
body: <p>Does anyone know if the framework Mapbox seamlessly works on Flutter (iOS and Android)?
  The feature I want in my app is turn-by-turn navigation, for which Mapbox does have Android and iOS SDK. The package that is available for this in Flutter <a href="https://pub.dev/packages/flutter_mapbox_navigation" rel="nofollow noreferrer">https://pub.dev/packages/flutter_mapbox_navigation</a> does have the ability, as per the docs, but doesn't work as expected in Android (I tried only in Android).
  There seems to be an open issue in their Github repository too - <a href="https://github.com/eopeter/flutter_mapbox_navigation/issues/98" rel="nofollow noreferrer">https://github.com/eopeter/flutter_mapbox_navigation/issues/98</a>
  which pulls me back from using this.
  Any thoughts?</p>