Added in API level 29

Builder

class Builder
kotlin.Any
   ↳ android.net.wifi.aware.WifiAwareNetworkSpecifier.Builder

A builder class for a Wi-Fi Aware network specifier to set up an Aware connection with a peer.

Summary

Public constructors
Builder(discoverySession: DiscoverySession, peerHandle: PeerHandle)

Create a builder for WifiAwareNetworkSpecifier used in requests to set up a Wi-Fi Aware connection with a specific peer.

Builder(publishDiscoverySession: PublishDiscoverySession)

Create a builder for WifiAwareNetworkSpecifier used in requests to set up a Wi-Fi Aware connection.

Public methods
WifiAwareNetworkSpecifier

Create a android.net.NetworkRequest.Builder#setNetworkSpecifier(NetworkSpecifier) for a WiFi Aware connection (link) to the specified peer.

WifiAwareNetworkSpecifier.Builder
setChannelFrequencyMhz(channelInMhz: Int, required: Boolean)

Configure the Channel frequency for the Wi-Fi Aware connection being requested.

WifiAwareNetworkSpecifier.Builder

Configure security config for the Wi-Fi Aware connection being requested.

WifiAwareNetworkSpecifier.Builder

Configure the PMK for the Wi-Fi Aware connection being requested.

WifiAwareNetworkSpecifier.Builder
setPort(port: Int)

Configure the port number which will be used to create a connection over this link.

WifiAwareNetworkSpecifier.Builder
setPskPassphrase(pskPassphrase: String)

Configure the PSK Passphrase for the Wi-Fi Aware connection being requested.

WifiAwareNetworkSpecifier.Builder
setTransportProtocol(transportProtocol: Int)

Configure the transport protocol which will be used to create a connection over this link.

Public constructors

Builder

Added in API level 29
Builder(
    discoverySession: DiscoverySession,
    peerHandle: PeerHandle)

Create a builder for WifiAwareNetworkSpecifier used in requests to set up a Wi-Fi Aware connection with a specific peer.

To set up a connection to any peer or to multiple peers use Builder(android.net.wifi.aware.PublishDiscoverySession).

Parameters
discoverySession DiscoverySession: A Wi-Fi Aware discovery session in whose context the connection is created. This value cannot be null.
peerHandle PeerHandle: The handle of the peer to which the Wi-Fi Aware connection is requested. The peer is discovered through Wi-Fi Aware discovery. The handle can be obtained through DiscoverySessionCallback#onServiceDiscovered(PeerHandle, byte[], java.util.List) or DiscoverySessionCallback#onMessageReceived(PeerHandle, byte[]). This value cannot be null.

Builder

Added in API level 29
Builder(publishDiscoverySession: PublishDiscoverySession)

Create a builder for WifiAwareNetworkSpecifier used in requests to set up a Wi-Fi Aware connection. This configuration allows connections to any peers or to multiple peers (as opposed to only a specific peer with Builder(android.net.wifi.aware.DiscoverySession,android.net.wifi.aware.PeerHandle)).

Multiple connections can be triggered by this configuration and using a single request via ConnectivityManager#requestNetwork(NetworkRequest, ConnectivityManager.NetworkCallback) and similar methods. Each successful connection will be signaled via the standard Connectivity Manager mechanisms - ConnectivityManager.NetworkCallback#onAvailable(Network). Calling ConnectivityManager#unregisterNetworkCallback(ConnectivityManager.NetworkCallback) will terminate all connections.

Parameters
publishDiscoverySession PublishDiscoverySession: This value cannot be null.

Public methods

build

Added in API level 29
fun build(): WifiAwareNetworkSpecifier

Create a android.net.NetworkRequest.Builder#setNetworkSpecifier(NetworkSpecifier) for a WiFi Aware connection (link) to the specified peer. The android.net.NetworkRequest.Builder#addTransportType(int) should be set to android.net.NetworkCapabilities#TRANSPORT_WIFI_AWARE.

The default builder constructor will initialize a NetworkSpecifier which requests an open (non-encrypted) link. To request an encrypted link use the setPskPassphrase(java.lang.String) or setPmk(byte[]) builder methods.

Return
WifiAwareNetworkSpecifier A NetworkSpecifier to be used to construct android.net.NetworkRequest.Builder#setNetworkSpecifier(NetworkSpecifier) to pass to android.net.ConnectivityManager#requestNetwork(android.net.NetworkRequest, * android.net.ConnectivityManager.NetworkCallback) [or other varieties of that API]. This value cannot be null.

setChannelFrequencyMhz

Added in API level 33
fun setChannelFrequencyMhz(
    channelInMhz: Int,
    required: Boolean
): WifiAwareNetworkSpecifier.Builder

Configure the Channel frequency for the Wi-Fi Aware connection being requested. This method is optional - if not called, then channelInMhz to use will be decided by firmware. Only use this when WifiAwareManager#isSetChannelOnDataPathSupported() is true, otherwise the set channelInMhz will be ignored.

Parameters
channelInMhz Int: Channel frequency in Mhz. Value is 0 or greater
required Boolean: If set to true, Channel request is specified and must be respected. If the firmware cannot honor the request then the data-path request is rejected. Otherwise, requested channelInMhz is a recommendation and may be overridden by the firmware.
Return
WifiAwareNetworkSpecifier.Builder the current Builder builder, enabling chaining of builder methods. This value cannot be null.

setDataPathSecurityConfig

Added in API level 33
fun setDataPathSecurityConfig(securityConfig: WifiAwareDataPathSecurityConfig): WifiAwareNetworkSpecifier.Builder

Configure security config for the Wi-Fi Aware connection being requested. This method is optional - if not called, then an Open (unencrypted) connection will be created. Note: this method is the superset of the setPmk(byte[]) and setPskPassphrase(java.lang.String).

Parameters
securityConfig WifiAwareDataPathSecurityConfig: The (optional) security config to be used to encrypt the link. This value cannot be null.
Return
WifiAwareNetworkSpecifier.Builder the current Builder builder, enabling chaining of builder methods. This value cannot be null.

setPmk

Added in API level 30
fun setPmk(pmk: ByteArray): WifiAwareNetworkSpecifier.Builder

Configure the PMK for the Wi-Fi Aware connection being requested. This method is optional - if not called, then an Open (unencrypted) connection will be created. Note: Use setDataPathSecurityConfig(android.net.wifi.aware.WifiAwareDataPathSecurityConfig) to avoid interoperability issues when devices support different cipher suites by explicitly specifying a cipher suite as opposed to relying on a default cipher suite.

Parameters
pmk ByteArray: A PMK (pairwise master key, see IEEE 802.11i) specifying the key to use for encrypting the data-path. Use the setPskPassphrase(java.lang.String) to specify a Passphrase. This value cannot be null.
Return
WifiAwareNetworkSpecifier.Builder the current Builder builder, enabling chaining of builder methods. This value cannot be null.

setPort

Added in API level 29
fun setPort(port: Int): WifiAwareNetworkSpecifier.Builder

Configure the port number which will be used to create a connection over this link. This configuration should only be done on the server device, e.g. the device creating the java.net.ServerSocket.

Notes:

Parameters
port Int: A positive integer indicating the port to be used for communication. Value is between 0 and 65535 inclusive
Return
WifiAwareNetworkSpecifier.Builder the current Builder builder, enabling chaining of builder methods. This value cannot be null.

setPskPassphrase

Added in API level 29
fun setPskPassphrase(pskPassphrase: String): WifiAwareNetworkSpecifier.Builder

Configure the PSK Passphrase for the Wi-Fi Aware connection being requested. This method is optional - if not called, then an Open (unencrypted) connection will be created. Note: Use setDataPathSecurityConfig(android.net.wifi.aware.WifiAwareDataPathSecurityConfig) to avoid interoperability issues when devices support different cipher suites by explicitly specifying a cipher suite as opposed to relying on a default cipher suite. WifiAwareDataPathSecurityConfig.Builder#Builder(int)

Parameters
pskPassphrase String: The (optional) passphrase to be used to encrypt the link. Use the setPmk(byte[]) to specify a PMK. This value cannot be null.
Return
WifiAwareNetworkSpecifier.Builder the current Builder builder, enabling chaining of builder methods. This value cannot be null.

setTransportProtocol

Added in API level 29
fun setTransportProtocol(transportProtocol: Int): WifiAwareNetworkSpecifier.Builder

Configure the transport protocol which will be used to create a connection over this link. This configuration should only be done on the server device, e.g. the device creating the java.net.ServerSocket for TCP.

Notes:

The transport protocol number is assigned by the Internet Assigned Numbers Authority (IANA) https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml.
Parameters
transportProtocol Int: The transport protocol to be used for communication. Value is between 0 and 255 inclusive
Return
WifiAwareNetworkSpecifier.Builder the current Builder builder, enabling chaining of builder methods. This value cannot be null.