addStyleCustomLayer

@NonNull()

abstract fun addStyleCustomLayer(@NonNull() layerId: String, @NonNull() layerHost: CustomLayerHost, @Nullable() layerPosition: LayerPosition): Expected<String, None>

Adds a new [style custom layer](https://docs.mapbox.com/mapbox-gl-js/style-spec/#layers).Runtime style layers are valid until they are either removed or a new style is loaded.

Return

A string describing an error if the operation was not successful, or empty otherwise.

Parameters

layerId

A style layer identifier.

layerHost

The `custom layer host`.

layerPosition

If not empty, the new layer will be positioned according to `layer position` parameters.