If the event is a tag, then the following methods
    in XmlPullParser also work:
  
public String getName()
public String getNamespace()
public String getPrefix()
  
  getName() returns the local (unprefixed) name of the tag
getNamespace() returns the namespace URI, or the empty string
           if the tag is not in a namespace 
getPrefix() returns the prefix of the tag, or null if the tag does not have a prefix