#Flutter Map - Guide to Solve different kinds of Problems

In this example, we are going to show you how to calculate the distance of the direction routes path between two locations. First, we will fetch polyline coordinates from Google Map API. It contains the list of longitude and latitude, after that we will calculate the distance in KM.

Are you displaying polyline drawings on google maps in the Flutter app to show navigation routes between two locations (longitudes and latitude) points? But, the polyline routes or road marking is not displaying then see the reason below and learn to fix it.