Android : expression iconColor not working

[RoProducts]

Hi,

The iconColor expression of a SymbolLayer does not have any affect. Icons remain black or whatever color they are. You can check out this behavior even in your sample app :

https://github.com/mapbox/mapbox-android-demo/blob/master/MapboxAndroidDemo/src/main/java/com/mapbox/mapboxandroiddemo/examples/dds/CircleLayerClusteringActivity.java#L182

Icon color should be interpolated:

The iconSize expression instead works

I tried different vector drawables and the "ic_cross.xml" you are using in the samples.
I tried to give the expression any kind of String or number representation, no success.

Please help.

[LukasPaczos]

Hey @RoProducts, thanks for using Mapbox! You've actually found an issue with the linked example. The icon is added to the map here, but in order for you to be able to color an icon using the iconColor property, it needs to be declared as an SDF. You can do that by providing a compatible bitmap to the map like

style.addImage(
  "cross-icon-id",
  BitmapUtils.getBitmapFromDrawable(getResources().getDrawable(R.drawable.ic_cross)),
  true
);

where true flag declares that it's an SDF icon. Now, your iconColor property should change the icon correctly.

Closing as answered, however, please let us know if that does not resolve your issue.

[RoProducts]

Hi @LukasPaczos ,

ah, okay this is silly. Costed my several hours trying different icons and expressions.

Thank you however