Android APIs
Added in API level 1
package

android.net

Classes that help with network access, beyond the normal java.net.* APIs.

Interfaces

ConnectivityManager.OnNetworkActiveListener Callback for use with addDefaultNetworkActiveListener(ConnectivityManager.OnNetworkActiveListener) to find out when the system default network has gone in to a high power state. 
UrlQuerySanitizer.ValueSanitizer A functor used to sanitize a single query value. 

Classes

ConnectivityManager Class that answers queries about the state of network connectivity. 
ConnectivityManager.NetworkCallback Base class for NetworkRequest callbacks. 
Credentials A class for representing UNIX credentials passed via ancillary data on UNIX domain sockets. 
DhcpInfo A simple object for retrieving the results of a DHCP request. 
IpPrefix This class represents an IP prefix, i.e., a contiguous block of IP addresses aligned on a power of two boundary (also known as an "IP subnet"). 
LinkAddress Identifies an IP address on a network link. 
LinkProperties Describes the properties of a network link. 
LocalServerSocket Non-standard class for creating an inbound UNIX-domain socket in the Linux abstract namespace. 
LocalSocket Creates a (non-server) socket in the UNIX-domain namespace. 
LocalSocketAddress A UNIX-domain (AF_LOCAL) socket address. 
MailTo MailTo URL parser This class parses a mailto scheme URL and then can be queried for the parsed parameters. 
Network Identifies a Network
NetworkCapabilities This class represents the capabilities of a network. 
NetworkInfo Describes the status of a network interface. 
NetworkRequest Defines a request for a network, made through NetworkRequest.Builder and used to request a network via requestNetwork(NetworkRequest, ConnectivityManager.NetworkCallback) or listen for changes via registerNetworkCallback(NetworkRequest, ConnectivityManager.NetworkCallback)
NetworkRequest.Builder Builder used to create NetworkRequest objects. 
Proxy A convenience class for accessing the user and default proxy settings. 
ProxyInfo Describes a proxy configuration. 
PskKeyManager Provider of key material for pre-shared key (PSK) key exchange used in TLS-PSK cipher suites. 
RouteInfo Represents a network route. 
SSLCertificateSocketFactory SSLSocketFactory implementation with several extra features:
  • Timeout specification for SSL handshake operations
  • Hostname verification in most cases (see WARNINGs below)
  • Optional SSL session caching with SSLSessionCache
  • Optionally bypass all SSL certificate checks
The handshake timeout does not apply to actual TCP socket connection. 
SSLSessionCache File-based cache of established SSL sessions. 
TrafficStats Class that provides network traffic statistics. 
Uri Immutable URI reference. 
Uri.Builder Helper class for building or manipulating URI references. 
UrlQuerySanitizer Sanitizes the Query portion of a URL. 
UrlQuerySanitizer.IllegalCharacterValueSanitizer Sanitize values based on which characters they contain. 
UrlQuerySanitizer.ParameterValuePair A simple tuple that holds parameter-value pairs. 
VpnService VpnService is a base class for applications to extend and build their own VPN solutions. 
VpnService.Builder Helper class to create a VPN interface. 

Enums

LocalSocketAddress.Namespace The namespace that this address exists in. 
NetworkInfo.DetailedState The fine-grained state of a network connection. 
NetworkInfo.State Coarse-grained network state. 

Exceptions

ParseException Thrown when parsing a URL fails.