Google Maps Driving route android

Question

I need to plot a route from user's current location to the destination address. Now let's say if the user takes a different route, I need to replot the route. How should I proceed?

I, obviously, will not keep on plotting the route as soon as the user's location. I need to replot only when the user takes a different route

Answer 1

Have already been answered here. How to draw interactive Polyline on route google maps v2 android

Code sample

PolylineOptions options = new  
            PolylineOptions().width(5).color(Color.BLUE).geodesic(true);
for (int z = 0; z < list.size(); z++) {
   LatLng point = list.get(z);
   options.add(point);
}
line = myMap.addPolyline(options);