question: public static final void writeMapXml ( Map val , String name , XmlSerializer out , WriteMapCallback callback ) throws XmlPullParserException , java . io . IOException { if ( val == null ) { out . startTag ( null , "null" ) ; out . endTag ( null , "null" ) ; return ; } out . startTag ( null , "map" ) ; if ( name != null ) { out . attribute ( null , "name" , name ) ; } writeMapXml ( val , out , callback ) ; out . endTag ( null , "map" ) ; }
target:  Flatten a Map into an XmlSerializer.  The map can later be read back with readThisMapXml().