added in API level 1

android.net

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

Interfaces

ConnectivityManager.OnNetworkActiveListener Callback for use with ConnectivityManager.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

CaptivePortal A class allowing apps handling the ConnectivityManager.ACTION_CAPTIVE_PORTAL_SIGN_IN activity to indicate to the system different outcomes of captive portal sign in. 
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"). 
IpSecAlgorithm This class represents a single algorithm that can be used by an IpSecTransform. 
IpSecManager This class contains methods for managing IPsec sessions. 
IpSecManager.SecurityParameterIndex This class represents a reserved SPI. 
IpSecManager.UdpEncapsulationSocket This class provides access to a UDP encapsulation Socket. 
IpSecTransform This class represents a transform, which roughly corresponds to an IPsec Security Association. 
IpSecTransform.Builder This class is used to build IpSecTransform objects. 
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. 
MacAddress Representation of a MAC 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 Representation of the capabilities of an active 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 ConnectivityManager.requestNetwork(NetworkRequest, PendingIntent) or listen for changes via ConnectivityManager.registerNetworkCallback(NetworkRequest, PendingIntent). 
NetworkRequest.Builder Builder used to create NetworkRequest objects. 
NetworkSpecifier Describes specific properties of a network for use in a NetworkRequest. 
Proxy A convenience class for accessing the user and default proxy settings. 
ProxyInfo Describes a proxy configuration. 
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

IpSecManager.ResourceUnavailableException Thrown to indicate that an IPsec resource is unavailable. 
IpSecManager.SpiUnavailableException Thrown to indicate that a requested SPI is in use. 
ParseException Thrown when parsing a URL fails.