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added in API level 1

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


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. 


CaptivePortal A class allowing apps handling the 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 IpSecAlgorithm specifies a single algorithm that can be applied to an IpSec Transform. 
IpSecManager This class contains methods for managing IPsec sessions, which will perform kernel-space encryption and decryption of socket or Network traffic. 
IpSecManager.UdpEncapsulationSocket Class providing access to a system-provided UDP Encapsulation Socket, which may be used for IKE signalling as well as for inbound and outbound UDP encapsulated IPsec traffic. 
IpSecTransform This class represents an IpSecTransform, which encapsulates both properties and state of IPsec. 
IpSecTransform.Builder Builder object to facilitate the creation of 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. 
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, PendingIntent) or listen for changes via 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. 


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. 


IpSecManager.ResourceUnavailableException Indicates that the requested system resource for IPsec, such as a socket or other system resource is unavailable. 
IpSecManager.SpiUnavailableException Indicates that the combination of remote InetAddress and SPI was non-unique for a given request. 
ParseException Thrown when parsing a URL fails. 
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