To add and remove polygon overlays in an android application use the below mentioned methods :
mapplsMap.addPolygon(new PolygonOptions()
.addAll(polygon)//list of LatLng.
.fillColor(Color.parseColor("#3bb2d0")));
To remove polygon overlay :
mapplsMap.removePolygon(polygon);
For more info visit here : mappls-android-sdk/docs/v1.0.7/Getting-Started.md at main · mappls-api/mappls-android-sdk · GitHub