HERE Maps: Change color of already travelled part of route

问题

Is it possible to change the color of the route during navigation? Specifically I would like the already travelled parts of the route to be a different color then the upcoming parts of the route. Right now it is all the same color.

回答1:

This is currently not supported with the 3.3.x generation of the HERE SDK.

This feature is something we are trying to add in an upcoming release, so stay tuned!

回答2:

you need to use Polyline class to draw your path and then you can set color to it.

 Polyline line = googlemap.addPolyline(new PolylineOptions()
     .add(new LatLng (myLocation2.getLatitude(), myLocation2.getLongitude()), new LatLng (currentLocation.getLatitude(), currentLocation.getLongitude())).width(5)
     .color(Color.RED)); 

回答3:

Setting the traveledColor variable of the MapRoute object to transparent did the trick for me.

mapRoute?.color = ResourcesCompat.getColor(resources, R.color.colorAccent, null)
mapRoute?.traveledColor = ResourcesCompat.getColor(resources, android.R.color.transparent, null)

来源：https://stackoverflow.com/questions/41897246/here-maps-change-color-of-already-travelled-part-of-route