added in API level 1

org.apache.http.conn.scheme

Interfaces

HostNameResolver This interface was deprecated in API level 22. Please use openConnection() instead. Please visit this webpage for further details.  
LayeredSocketFactory This interface was deprecated in API level 22. Please use openConnection() instead. Please visit this webpage for further details.  
SocketFactory This interface was deprecated in API level 22. Please use openConnection() instead. Please visit this webpage for further details.