Add a LayerListener to the LayerHandler, in order to be told about layers that need to be added to the map. The new LayerListener will receive two events, one telling it all the layers available, and one telling it which layers are active (visible).
@param ll LayerListener, usually the MapBean or other GUI componentsinterested in providing layer controls.
All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.