public static MGLShape ToShape(this GeoJSON.Net.IGeoJSONObject geoJSONObject)
{
if (geoJSONObject == null)
{
return(null);
}
var json = JsonConvert.SerializeObject(geoJSONObject);
var data = NSData.FromString(json);
var shape = MGLShape.ShapeWithData(data, (int)NSStringEncoding.UTF8, out var error);
// TODO Handle error
if (error != null)
{
return(null);
}
return(shape);
}
void DrawPolyline()
{
var jsonPath = NSBundle.MainBundle.PathForResource("example", "geojson");
NSData data = NSFileManager.DefaultManager.Contents(jsonPath);
NSError err;
MGLShapeCollectionFeature shapeCollectionFeature = (MGLShapeCollectionFeature)MGLShape.ShapeWithData(data, (uint)NSStringEncoding.UTF8, out err);
MGLPolylineFeature polyline = (MGLPolylineFeature)shapeCollectionFeature.Shapes.First();
mapView.AddAnnotation(polyline);
}