How to create direction arrows for my polylines in android

Question

what i need to add for

PolylineOptions polyline = new PolylineOptions();
polyline.addAll(geom);
polyline.color(defaultStrokeColor).width(defaultWidth);
mapO         


        

Answer 1

The following code applies a round cap to the end of the line, and a different start cap depending on the polyline's type i.e arrow image from a drawable resource file, where the type is an arbitrary property stored in the data object for the polyline. The sample also specifies a stroke width, stroke color, and joint type:

switch (type) {
    // If no type is given, allow the API to use the default.
    case "A":
        // Use a custom bitmap as the cap at the start of the line.
        polyline.setStartCap(
                new CustomCap(
                        BitmapDescriptorFactory.fromResource(R.drawable.ic_arrow), 10));
        break;
    case "B":
        // Use a round cap at the start of the line.
        polyline.setStartCap(new RoundCap());
        break;
}

polyline.setEndCap(new RoundCap());
polyline.setWidth(POLYLINE_STROKE_WIDTH_PX);
polyline.setColor(COLOR_BLACK_ARGB);
polyline.setJointType(JointType.ROUND);

}