fun StyleInterface.addPersistentLayer(layer: Layer, position: LayerPosition? = null)

Add layer to the style persistently.

Whenever a new style is being parsed and currently used style has persistent layers, an engine will try to do following:

  • keep the persistent layer at its relative position

  • keep the source used by a persistent layer

  • keep images added through addStyleImage method

In cases when a new style has the same layer, source or image resource, style's resources would be used instead and MapLoadingError event will be emitted.



The layer to be added to the style


the position that the current layer is added to