Added in API level 14

Summary: Nested Classes | Constants | Methods | Inherited Methods

WifiP2pManager

Kotlin |Java

public class WifiP2pManager
extends Object

java.lang.Object
↳	android.net.wifi.p2p.WifiP2pManager

This class provides the API for managing Wi-Fi peer-to-peer connectivity. This lets an application discover available peers, setup connection to peers and query for the list of peers. When a p2p connection is formed over wifi, the device continues to maintain the uplink connection over mobile or any other available network for internet connectivity on the device.

The API is asynchronous and responses to requests from an application are on listener callbacks provided by the application. The application needs to do an initialization with initialize(Context, Looper, ChannelListener) before doing any p2p operation.

Most application calls need a ActionListener instance for receiving callbacks ActionListener.onSuccess or ActionListener.onFailure. Action callbacks indicate whether the initiation of the action was a success or a failure. Upon failure, the reason of failure can be one of ERROR, P2P_UNSUPPORTED or BUSY.

An application can initiate discovery of peers with discoverPeers(Channel, ActionListener). An initiated discovery request from an application stays active until the device starts connecting to a peer ,forms a p2p group or there is an explicit stopPeerDiscovery(Channel, ActionListener). Applications can listen to WIFI_P2P_DISCOVERY_CHANGED_ACTION to know if a peer-to-peer discovery is running or stopped. Additionally, WIFI_P2P_PEERS_CHANGED_ACTION indicates if the peer list has changed.

When an application needs to fetch the current list of peers, it can request the list of peers with requestPeers(Channel, PeerListListener). When the peer list is available PeerListListener.onPeersAvailable is called with the device list.

An application can initiate a connection request to a peer through connect(Channel, WifiP2pConfig, ActionListener). See WifiP2pConfig for details on setting up the configuration. For communication with legacy Wi-Fi devices that do not support p2p, an app can create a group using createGroup(Channel, WifiP2pConfig, ActionListener) which creates an access point whose details can be fetched with requestGroupInfo(Channel, GroupInfoListener).

After a successful group formation through createGroup(Channel, WifiP2pConfig, ActionListener) or through connect(Channel, WifiP2pConfig, ActionListener), use requestConnectionInfo(Channel, ConnectionInfoListener) to fetch the connection details. The connection info WifiP2pInfo contains the address of the group owner WifiP2pInfo.groupOwnerAddress and a flag WifiP2pInfo.isGroupOwner to indicate if the current device is a p2p group owner. A p2p client can thus communicate with the p2p group owner through a socket connection. If the current device is the p2p group owner, WifiP2pInfo.groupOwnerAddress is anonymized unless the caller holds the android.Manifest.permission#LOCAL_MAC_ADDRESS permission.

With peer discovery using discoverPeers(Channel, ActionListener), an application discovers the neighboring peers, but has no good way to figure out which peer to establish a connection with. For example, if a game application is interested in finding all the neighboring peers that are also running the same game, it has no way to find out until after the connection is setup. Pre-association service discovery is meant to address this issue of filtering the peers based on the running services.

With pre-association service discovery, an application can advertise a service for a application on a peer device prior to a connection setup between the devices. Currently, DNS based service discovery (Bonjour) and Upnp are the higher layer protocols supported. Get Bonjour resources at dns-sd.org and Upnp resources at upnp.org As an example, a video application can discover a Upnp capable media renderer prior to setting up a Wi-fi p2p connection with the device.

An application can advertise a Upnp or a Bonjour service with a call to addLocalService(Channel, WifiP2pServiceInfo, ActionListener). After a local service is added, the framework automatically responds to a peer application discovering the service prior to establishing a p2p connection. A call to removeLocalService(Channel, WifiP2pServiceInfo, ActionListener) removes a local service and clearLocalServices(Channel, ActionListener) can be used to clear all local services.

An application that is looking for peer devices that support certain services can do so with a call to discoverServices(Channel, ActionListener). Prior to initiating the discovery, application can add service discovery request with a call to addServiceRequest(Channel, WifiP2pServiceRequest, ActionListener), remove a service discovery request with a call to removeServiceRequest(Channel, WifiP2pServiceRequest, ActionListener) or clear all requests with a call to clearServiceRequests(Channel, ActionListener). When no service requests remain, a previously running service discovery will stop. The application is notified of a result of service discovery request through listener callbacks set through setDnsSdResponseListeners(Channel, DnsSdServiceResponseListener, DnsSdTxtRecordListener) for Bonjour or setUpnpServiceResponseListener(Channel, UpnpServiceResponseListener) for Upnp.

Note: Registering an application handler with initialize(Context, Looper, ChannelListener) requires the permissions Manifest.permission.ACCESS_WIFI_STATE and Manifest.permission.CHANGE_WIFI_STATE to perform any further peer-to-peer operations.
Restricted for SDK Runtime environment in API level 34.

See also:

Summary

Nested classes
`interface`	`WifiP2pManager.ActionListener` Interface for callback invocation on an application action
`class`	`WifiP2pManager.Channel` A channel that connects the application to the Wifi p2p framework.
`interface`	`WifiP2pManager.ChannelListener` Interface for callback invocation when framework channel is lost
`interface`	`WifiP2pManager.ConnectionInfoListener` Interface for callback invocation when connection info is available
`interface`	`WifiP2pManager.DeviceInfoListener` Interface for callback invocation when `WifiP2pDevice` is available in response to `WifiP2pManager.requestDeviceInfo(android.net.wifi.p2p.WifiP2pManager.Channel, android.net.wifi.p2p.WifiP2pManager.DeviceInfoListener)`.
`interface`	`WifiP2pManager.DiscoveryStateListener` Interface for callback invocation when p2p state is available in response to `WifiP2pManager.requestDiscoveryState(Channel, DiscoveryStateListener)`.
`interface`	`WifiP2pManager.DnsSdServiceResponseListener` Interface for callback invocation when Bonjour service discovery response is received
`interface`	`WifiP2pManager.DnsSdTxtRecordListener` Interface for callback invocation when Bonjour TXT record is available for a service
`interface`	`WifiP2pManager.ExternalApproverRequestListener` Interface for callback invocation when an incoming request is received.
`interface`	`WifiP2pManager.GroupInfoListener` Interface for callback invocation when group info is available
`interface`	`WifiP2pManager.NetworkInfoListener` Interface for callback invocation when `NetworkInfo` is available in response to `WifiP2pManager.requestNetworkInfo(Channel, NetworkInfoListener)`.
`interface`	`WifiP2pManager.P2pStateListener` Interface for callback invocation when p2p state is available in response to `WifiP2pManager.requestP2pState(Channel, P2pStateListener)`.
`interface`	`WifiP2pManager.PeerListListener` Interface for callback invocation when peer list is available
`interface`	`WifiP2pManager.ServiceResponseListener` Interface for callback invocation when service discovery response other than Upnp or Bonjour is received
`interface`	`WifiP2pManager.UpnpServiceResponseListener` Interface for callback invocation when upnp service discovery response is received
`interface`	`WifiP2pManager.WifiP2pListener` Interface used to listen to Wi-Fi p2p various changes such as device state change, discovery started/stopped, connection change, etc.

Constants
`String`	`ACTION_WIFI_P2P_LISTEN_STATE_CHANGED` Broadcast intent action indicating that peer listen has either started or stopped.
`String`	`ACTION_WIFI_P2P_REQUEST_RESPONSE_CHANGED` Broadcast intent action indicating whether or not current connecting request is accepted.
`int`	`BUSY` Passed with `ActionListener.onFailure`.
`int`	`CONNECTION_REQUEST_ACCEPT` Accept the incoming request.
`int`	`CONNECTION_REQUEST_DEFER_SHOW_PASSWORD_TO_SERVICE` Defer the Wi-Fi Direct R2 pairing bootstrapping password display to the Wi-Fi service (which will display a dialog to the user).
`int`	`CONNECTION_REQUEST_DEFER_SHOW_PIN_TO_SERVICE` Defer the WPS PIN or Wi-Fi Direct R2 pairing bootstrapping PIN display to the Wi-Fi service (which will display a dialog to the user).
`int`	`CONNECTION_REQUEST_DEFER_TO_SERVICE` Defer the decision back to the Wi-Fi service (which will display a dialog to the user).
`int`	`CONNECTION_REQUEST_REJECT` Reject the incoming request.
`int`	`ERROR` Passed with `ActionListener.onFailure`.
`String`	`EXTRA_DISCOVERY_STATE` The lookup key for an int that indicates whether p2p discovery has started or stopped.
`String`	`EXTRA_LISTEN_STATE` The lookup key for an int that indicates whether p2p listen has started or stopped.
`String`	`EXTRA_NETWORK_INFO` The lookup key for a `NetworkInfo` object associated with the p2p network.
`String`	`EXTRA_P2P_DEVICE_LIST` The lookup key for a `WifiP2pDeviceList` object representing the new peer list when `WIFI_P2P_PEERS_CHANGED_ACTION` broadcast is sent.
`String`	`EXTRA_REQUEST_CONFIG` The lookup key for the `WifiP2pConfig` object of a request.
`String`	`EXTRA_REQUEST_RESPONSE` The lookup key for the result of a request, true if accepted, false otherwise.
`String`	`EXTRA_WIFI_P2P_DEVICE` The lookup key for a `WifiP2pDevice` object Retrieve with `Intent.getParcelableExtra(String)`.
`String`	`EXTRA_WIFI_P2P_GROUP` The lookup key for a `WifiP2pGroup` object associated with the p2p network.
`String`	`EXTRA_WIFI_P2P_INFO` The lookup key for a `WifiP2pInfo` object Retrieve with `Intent.getParcelableExtra(String)`.
`String`	`EXTRA_WIFI_STATE` The lookup key for an int that indicates whether Wi-Fi p2p is enabled or disabled.
`int`	`GROUP_CREATION_FAILURE_REASON_CONNECTION_CANCELLED` P2p group creation failed because the connection has been cancelled.
`int`	`GROUP_CREATION_FAILURE_REASON_GROUP_REMOVED` P2p group creation failed because the group has been removed.
`int`	`GROUP_CREATION_FAILURE_REASON_INVITATION_FAILED` P2p group creation failed because invitation has failed.
`int`	`GROUP_CREATION_FAILURE_REASON_PROVISION_DISCOVERY_FAILED` P2p group creation failed because provision discovery has failed.
`int`	`GROUP_CREATION_FAILURE_REASON_TIMED_OUT` P2p group creation failed because it has timed out.
`int`	`GROUP_CREATION_FAILURE_REASON_USER_REJECTED` P2p group creation failed because user has rejected.
`int`	`NO_PERMISSION` Passed with `ActionListener.onFailure`.
`int`	`NO_SERVICE_REQUESTS` Passed with `ActionListener.onFailure`.
`int`	`P2P_UNSUPPORTED` Passed with `ActionListener.onFailure`.
`String`	`WIFI_P2P_CONNECTION_CHANGED_ACTION` Broadcast intent action indicating that the state of Wi-Fi p2p connectivity has changed.
`String`	`WIFI_P2P_DISCOVERY_CHANGED_ACTION` Broadcast intent action indicating that peer discovery has either started or stopped.
`int`	`WIFI_P2P_DISCOVERY_STARTED` p2p discovery has started
`int`	`WIFI_P2P_DISCOVERY_STOPPED` p2p discovery has stopped
`int`	`WIFI_P2P_LISTEN_STARTED` p2p listen has started
`int`	`WIFI_P2P_LISTEN_STOPPED` p2p listen has stopped
`String`	`WIFI_P2P_PEERS_CHANGED_ACTION` Broadcast intent action indicating that the available peer list has changed.
`int`	`WIFI_P2P_SCAN_FULL` Run P2P scan on all channels.
`int`	`WIFI_P2P_SCAN_SINGLE_FREQ` Run P2P scan only on a specific channel.
`int`	`WIFI_P2P_SCAN_SOCIAL` Run P2P scan only on social channels.
`String`	`WIFI_P2P_STATE_CHANGED_ACTION` Broadcast intent action to indicate whether Wi-Fi p2p is enabled or disabled.
`int`	`WIFI_P2P_STATE_DISABLED` Wi-Fi p2p is disabled.
`int`	`WIFI_P2P_STATE_ENABLED` Wi-Fi p2p is enabled.
`String`	`WIFI_P2P_THIS_DEVICE_CHANGED_ACTION` Broadcast intent action indicating that this device details have changed.

Public methods
`void`	`addExternalApprover(WifiP2pManager.Channel c, MacAddress deviceAddress, WifiP2pManager.ExternalApproverRequestListener listener)` Set the external approver for a specific peer.
`void`	`addLocalService(WifiP2pManager.Channel channel, WifiP2pServiceInfo servInfo, WifiP2pManager.ActionListener listener)` Register a local service for service discovery.
`void`	`addServiceRequest(WifiP2pManager.Channel channel, WifiP2pServiceRequest req, WifiP2pManager.ActionListener listener)` Add a service discovery request.
`void`	`cancelConnect(WifiP2pManager.Channel channel, WifiP2pManager.ActionListener listener)` Cancel any ongoing p2p group negotiation The function call immediately returns after sending a connection cancellation request to the framework.
`void`	`clearLocalServices(WifiP2pManager.Channel channel, WifiP2pManager.ActionListener listener)` Clear all registered local services of service discovery.
`void`	`clearServiceRequests(WifiP2pManager.Channel channel, WifiP2pManager.ActionListener listener)` Clear all registered service discovery requests.
`void`	`connect(WifiP2pManager.Channel channel, WifiP2pConfig config, WifiP2pManager.ActionListener listener)` Start a p2p connection to a device with the specified configuration.
`void`	`createGroup(WifiP2pManager.Channel channel, WifiP2pManager.ActionListener listener)` Create a p2p group with the current device as the group owner.
`void`	`createGroup(WifiP2pManager.Channel channel, WifiP2pConfig config, WifiP2pManager.ActionListener listener)` Create a p2p group with the current device as the group owner.
`void`	`discoverPeers(WifiP2pManager.Channel channel, WifiP2pManager.ActionListener listener)` Initiate peer discovery.
`void`	`discoverPeersOnSocialChannels(WifiP2pManager.Channel channel, WifiP2pManager.ActionListener listener)` Scan only the social channels.
`void`	`discoverPeersOnSpecificFrequency(WifiP2pManager.Channel channel, int frequencyMhz, WifiP2pManager.ActionListener listener)` Scan only a single channel specified by frequency.
`void`	`discoverServices(WifiP2pManager.Channel channel, WifiP2pManager.ActionListener listener)` Initiate service discovery.
`void`	`discoverUsdBasedServices(WifiP2pManager.Channel channel, WifiP2pUsdBasedServiceDiscoveryConfig config, WifiP2pManager.ActionListener listener)` Initiate Un-synchronized service discovery (USD) based service discovery.
`void`	`getListenState(WifiP2pManager.Channel c, Executor executor, Consumer<Integer> resultsCallback)` Get p2p listen state.
`static int`	`getP2pMaxAllowedVendorElementsLengthBytes()` Return the maximum total length (in bytes) of all Vendor specific information elements (VSIEs) which can be set using the `setVendorElements(android.net.wifi.p2p.WifiP2pManager.Channel, java.util.List, android.net.wifi.p2p.WifiP2pManager.ActionListener)`.
`WifiP2pManager.Channel`	`initialize(Context srcContext, Looper srcLooper, WifiP2pManager.ChannelListener listener)` Registers the application with the Wi-Fi framework.
`boolean`	`isChannelConstrainedDiscoverySupported()` Check if this device supports discovery limited to a specific frequency or the social channels.
`boolean`	`isGroupClientRemovalSupported()` Check if this device supports removing clients from a group.
`boolean`	`isGroupOwnerIPv6LinkLocalAddressProvided()` Checks whether this device, while being a group client, can discover and deliver the group owner's IPv6 link-local address.
`boolean`	`isPccModeSupported()` Check if this device supports P2P Connection Compatibility Mode(R1/R2 compatibility mode).
`boolean`	`isSetVendorElementsSupported()` Check if this device supports setting vendor elements.
`boolean`	`isWiFiDirectR2Supported()` Check if this device supports Wi-Fi Direct R2 (P2P2).
`void`	`registerWifiP2pListener(Executor executor, WifiP2pManager.WifiP2pListener listener)` Add a listener to listen to Wi-Fi p2p various changes.
`void`	`removeClient(WifiP2pManager.Channel channel, MacAddress peerAddress, WifiP2pManager.ActionListener listener)` Remove the client with the MAC address from the group.
`void`	`removeExternalApprover(WifiP2pManager.Channel c, MacAddress deviceAddress, WifiP2pManager.ActionListener listener)` Remove the external approver for a specific peer.
`void`	`removeGroup(WifiP2pManager.Channel channel, WifiP2pManager.ActionListener listener)` Remove the current p2p group.
`void`	`removeLocalService(WifiP2pManager.Channel channel, WifiP2pServiceInfo servInfo, WifiP2pManager.ActionListener listener)` Remove a registered local service added with `addLocalService(Channel, WifiP2pServiceInfo, ActionListener)` The function call immediately returns after sending a request to remove a local service to the framework.
`void`	`removeServiceRequest(WifiP2pManager.Channel channel, WifiP2pServiceRequest req, WifiP2pManager.ActionListener listener)` Remove a specified service discovery request added with `addServiceRequest(Channel, WifiP2pServiceRequest, ActionListener)` The function call immediately returns after sending a request to remove service discovery request to the framework.
`void`	`requestConnectionInfo(WifiP2pManager.Channel channel, WifiP2pManager.ConnectionInfoListener listener)` Request device connection info.
`void`	`requestDeviceInfo(WifiP2pManager.Channel c, WifiP2pManager.DeviceInfoListener listener)` Request Device Info This method provides the device info in the form of a `WifiP2pDevice`.
`void`	`requestDirInfo(WifiP2pManager.Channel c, Executor executor, OutcomeReceiver<WifiP2pDirInfo, Exception> callback)` Get the Device Identity Resolution (DIR) Information.
`void`	`requestDiscoveryState(WifiP2pManager.Channel c, WifiP2pManager.DiscoveryStateListener listener)` Request p2p discovery state.
`void`	`requestGroupInfo(WifiP2pManager.Channel channel, WifiP2pManager.GroupInfoListener listener)` Request p2p group info.
`void`	`requestNetworkInfo(WifiP2pManager.Channel c, WifiP2pManager.NetworkInfoListener listener)` Request network info.
`void`	`requestP2pState(WifiP2pManager.Channel c, WifiP2pManager.P2pStateListener listener)` Request p2p enabled state.
`void`	`requestPeers(WifiP2pManager.Channel channel, WifiP2pManager.PeerListListener listener)` Request the current list of peers.
`void`	`setConnectionRequestResult(WifiP2pManager.Channel c, MacAddress deviceAddress, int result, String pinOrPassword, WifiP2pManager.ActionListener listener)` Set the result with PIN for the incoming request from a specific peer.
`void`	`setConnectionRequestResult(WifiP2pManager.Channel c, MacAddress deviceAddress, int result, WifiP2pManager.ActionListener listener)` Set the result for the incoming request from a specific peer.
`void`	`setDnsSdResponseListeners(WifiP2pManager.Channel channel, WifiP2pManager.DnsSdServiceResponseListener servListener, WifiP2pManager.DnsSdTxtRecordListener txtListener)` Register a callback to be invoked on receiving Bonjour service discovery response.
`void`	`setServiceResponseListener(WifiP2pManager.Channel channel, WifiP2pManager.ServiceResponseListener listener)` Register a callback to be invoked on receiving service discovery response.
`void`	`setUpnpServiceResponseListener(WifiP2pManager.Channel channel, WifiP2pManager.UpnpServiceResponseListener listener)` Register a callback to be invoked on receiving upnp service discovery response.
`void`	`setVendorElements(WifiP2pManager.Channel c, List<ScanResult.InformationElement> vendorElements, WifiP2pManager.ActionListener listener)` Set/Clear vendor specific information elements (VSIEs) to be published during Wi-Fi Direct (P2P) discovery.
`void`	`setWfdInfo(WifiP2pManager.Channel channel, WifiP2pWfdInfo wfdInfo, WifiP2pManager.ActionListener listener)` Set Wifi Display information.
`void`	`startListening(WifiP2pManager.Channel channel, WifiP2pManager.ActionListener listener)` Force p2p to enter listen state.
`void`	`startPeerDiscovery(WifiP2pManager.Channel channel, WifiP2pDiscoveryConfig config, WifiP2pManager.ActionListener listener)` Initiate peer discovery.
`void`	`startUsdBasedLocalServiceAdvertisement(WifiP2pManager.Channel channel, WifiP2pServiceInfo servInfo, WifiP2pUsdBasedLocalServiceAdvertisementConfig config, WifiP2pManager.ActionListener listener)` Start a service discovery advertisement using Un-synchronized service discovery (USD).
`void`	`stopListening(WifiP2pManager.Channel channel, WifiP2pManager.ActionListener listener)` Force p2p to exit listen state.
`void`	`stopPeerDiscovery(WifiP2pManager.Channel channel, WifiP2pManager.ActionListener listener)` Stop an ongoing peer discovery The function call immediately returns after sending a stop request to the framework.
`void`	`unregisterWifiP2pListener(WifiP2pManager.WifiP2pListener listener)` Remove a listener added using `registerWifiP2pListener(java.util.concurrent.Executor, android.net.wifi.p2p.WifiP2pManager.WifiP2pListener)`
`void`	`validateDirInfo(WifiP2pManager.Channel c, WifiP2pDirInfo dirInfo, Executor executor, OutcomeReceiver<Boolean, Exception> callback)` Validate the Device Identity Resolution (DIR) Information of a P2P device.

Inherited methods

From class


        
          java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long timeoutMillis, int nanos)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait(long timeoutMillis)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait()` Causes the current thread to wait until it is awakened, typically by being notified or interrupted.

Constants

ACTION_WIFI_P2P_LISTEN_STATE_CHANGED

Added in API level 34

public static final String ACTION_WIFI_P2P_LISTEN_STATE_CHANGED

Broadcast intent action indicating that peer listen has either started or stopped. One extra EXTRA_LISTEN_STATE indicates whether listen has started or stopped.

Constant Value: "android.net.wifi.p2p.action.WIFI_P2P_LISTEN_STATE_CHANGED"

ACTION_WIFI_P2P_REQUEST_RESPONSE_CHANGED

Added in API level 33

public static final String ACTION_WIFI_P2P_REQUEST_RESPONSE_CHANGED

Broadcast intent action indicating whether or not current connecting request is accepted. The connecting request is initiated by connect(android.net.wifi.p2p.WifiP2pManager.Channel, android.net.wifi.p2p.WifiP2pConfig, android.net.wifi.p2p.WifiP2pManager.ActionListener).

The EXTRA_REQUEST_RESPONSE extra indicates whether or not current request is accepted or rejected.

The EXTRA_REQUEST_CONFIG extra indicates the responsed configuration.

Constant Value: "android.net.wifi.p2p.action.WIFI_P2P_REQUEST_RESPONSE_CHANGED"

BUSY

Added in API level 14

public static final int BUSY

Passed with ActionListener.onFailure. Indicates that the operation failed because the framework is busy and unable to service the request

Constant Value: 2 (0x00000002)

CONNECTION_REQUEST_ACCEPT

Added in API level 33

public static final int CONNECTION_REQUEST_ACCEPT

Accept the incoming request. Used in setConnectionRequestResult(android.net.wifi.p2p.WifiP2pManager.Channel, android.net.MacAddress, int, android.net.wifi.p2p.WifiP2pManager.ActionListener).

Constant Value: 0 (0x00000000)

CONNECTION_REQUEST_DEFER_SHOW_PASSWORD_TO_SERVICE

Added in version 36.1

public static final int CONNECTION_REQUEST_DEFER_SHOW_PASSWORD_TO_SERVICE

Defer the Wi-Fi Direct R2 pairing bootstrapping password display to the Wi-Fi service (which will display a dialog to the user). Used in setConnectionRequestResult(android.net.wifi.p2p.WifiP2pManager.Channel, android.net.MacAddress, int, android.net.wifi.p2p.WifiP2pManager.ActionListener).

Constant Value: 4 (0x00000004)

CONNECTION_REQUEST_DEFER_SHOW_PIN_TO_SERVICE

Added in API level 33

public static final int CONNECTION_REQUEST_DEFER_SHOW_PIN_TO_SERVICE

Defer the WPS PIN or Wi-Fi Direct R2 pairing bootstrapping PIN display to the Wi-Fi service (which will display a dialog to the user). Used in setConnectionRequestResult(android.net.wifi.p2p.WifiP2pManager.Channel, android.net.MacAddress, int, android.net.wifi.p2p.WifiP2pManager.ActionListener).

Constant Value: 3 (0x00000003)

CONNECTION_REQUEST_DEFER_TO_SERVICE

Added in API level 33

public static final int CONNECTION_REQUEST_DEFER_TO_SERVICE

Defer the decision back to the Wi-Fi service (which will display a dialog to the user). Used in setConnectionRequestResult(android.net.wifi.p2p.WifiP2pManager.Channel, android.net.MacAddress, int, android.net.wifi.p2p.WifiP2pManager.ActionListener).

Constant Value: 2 (0x00000002)

CONNECTION_REQUEST_REJECT

Added in API level 33

public static final int CONNECTION_REQUEST_REJECT

Reject the incoming request. Used in setConnectionRequestResult(android.net.wifi.p2p.WifiP2pManager.Channel, android.net.MacAddress, int, android.net.wifi.p2p.WifiP2pManager.ActionListener).

Constant Value: 1 (0x00000001)

ERROR

Added in API level 14

public static final int ERROR

Passed with ActionListener.onFailure. Indicates that the operation failed due to an internal error.

Constant Value: 0 (0x00000000)

EXTRA_DISCOVERY_STATE

Added in API level 16

public static final String EXTRA_DISCOVERY_STATE

The lookup key for an int that indicates whether p2p discovery has started or stopped. Retrieve it with Intent.getIntExtra(String, int).

See also:

Constant Value: "discoveryState"

EXTRA_LISTEN_STATE

Added in API level 34

public static final String EXTRA_LISTEN_STATE

The lookup key for an int that indicates whether p2p listen has started or stopped. Retrieve it with Intent.getIntExtra(String, int).

See also:

Constant Value: "android.net.wifi.p2p.extra.LISTEN_STATE"

EXTRA_NETWORK_INFO

Added in API level 14

public static final String EXTRA_NETWORK_INFO

The lookup key for a NetworkInfo object associated with the p2p network. Retrieve with Intent.getParcelableExtra(String).

Constant Value: "networkInfo"

EXTRA_P2P_DEVICE_LIST

Added in API level 18

public static final String EXTRA_P2P_DEVICE_LIST

The lookup key for a WifiP2pDeviceList object representing the new peer list when WIFI_P2P_PEERS_CHANGED_ACTION broadcast is sent.

Retrieve with Intent.getParcelableExtra(String).

Constant Value: "wifiP2pDeviceList"

EXTRA_REQUEST_CONFIG

Added in API level 33

public static final String EXTRA_REQUEST_CONFIG

The lookup key for the WifiP2pConfig object of a request.

Constant Value: "android.net.wifi.p2p.extra.REQUEST_CONFIG"

EXTRA_REQUEST_RESPONSE

Added in API level 33

public static final String EXTRA_REQUEST_RESPONSE

The lookup key for the result of a request, true if accepted, false otherwise.

Constant Value: "android.net.wifi.p2p.extra.REQUEST_RESPONSE"

EXTRA_WIFI_P2P_DEVICE

Added in API level 14

public static final String EXTRA_WIFI_P2P_DEVICE

The lookup key for a WifiP2pDevice object Retrieve with Intent.getParcelableExtra(String).

Constant Value: "wifiP2pDevice"

EXTRA_WIFI_P2P_GROUP

Added in API level 18

public static final String EXTRA_WIFI_P2P_GROUP

The lookup key for a WifiP2pGroup object associated with the p2p network. Retrieve with Intent.getParcelableExtra(String).

Constant Value: "p2pGroupInfo"

EXTRA_WIFI_P2P_INFO

Added in API level 14

public static final String EXTRA_WIFI_P2P_INFO

The lookup key for a WifiP2pInfo object Retrieve with Intent.getParcelableExtra(String).

Constant Value: "wifiP2pInfo"

EXTRA_WIFI_STATE

Added in API level 14

public static final String EXTRA_WIFI_STATE

The lookup key for an int that indicates whether Wi-Fi p2p is enabled or disabled. Retrieve it with Intent.getIntExtra(String, int).

See also:

Constant Value: "wifi_p2p_state"

GROUP_CREATION_FAILURE_REASON_CONNECTION_CANCELLED

Added in API level 35

public static final int GROUP_CREATION_FAILURE_REASON_CONNECTION_CANCELLED

P2p group creation failed because the connection has been cancelled. Used in WifiP2pListener.onGroupCreationFailed(int reason).

Constant Value: 0 (0x00000000)

GROUP_CREATION_FAILURE_REASON_GROUP_REMOVED

Added in API level 35

public static final int GROUP_CREATION_FAILURE_REASON_GROUP_REMOVED

P2p group creation failed because the group has been removed. Used in WifiP2pListener.onGroupCreationFailed(int reason).

Constant Value: 4 (0x00000004)

GROUP_CREATION_FAILURE_REASON_INVITATION_FAILED

Added in API level 35

public static final int GROUP_CREATION_FAILURE_REASON_INVITATION_FAILED

P2p group creation failed because invitation has failed. Used in WifiP2pListener.onGroupCreationFailed(int reason).

Constant Value: 5 (0x00000005)

GROUP_CREATION_FAILURE_REASON_PROVISION_DISCOVERY_FAILED

Added in API level 35

public static final int GROUP_CREATION_FAILURE_REASON_PROVISION_DISCOVERY_FAILED

P2p group creation failed because provision discovery has failed. Used in WifiP2pListener.onGroupCreationFailed(int reason).

Constant Value: 3 (0x00000003)

GROUP_CREATION_FAILURE_REASON_TIMED_OUT

Added in API level 35

public static final int GROUP_CREATION_FAILURE_REASON_TIMED_OUT

P2p group creation failed because it has timed out. Used in WifiP2pListener.onGroupCreationFailed(int reason).

Constant Value: 1 (0x00000001)

GROUP_CREATION_FAILURE_REASON_USER_REJECTED

Added in API level 35

public static final int GROUP_CREATION_FAILURE_REASON_USER_REJECTED

P2p group creation failed because user has rejected. Used in WifiP2pListener.onGroupCreationFailed(int reason).

Constant Value: 2 (0x00000002)

NO_PERMISSION

Added in API level 36

public static final int NO_PERMISSION

Passed with ActionListener.onFailure. Indicates that the operation failed due to calling app doesn't have permission to call the API.

Constant Value: 4 (0x00000004)

NO_SERVICE_REQUESTS

Added in API level 16

public static final int NO_SERVICE_REQUESTS

Passed with ActionListener.onFailure. Indicates that the discoverServices(Channel, ActionListener) failed because no service requests are added. Use addServiceRequest(Channel, WifiP2pServiceRequest, ActionListener) to add a service request.

Constant Value: 3 (0x00000003)

P2P_UNSUPPORTED

Added in API level 14

public static final int P2P_UNSUPPORTED

Passed with ActionListener.onFailure. Indicates that the operation failed because p2p is unsupported on the device.

Constant Value: 1 (0x00000001)

WIFI_P2P_CONNECTION_CHANGED_ACTION

Added in API level 14

public static final String WIFI_P2P_CONNECTION_CHANGED_ACTION

Broadcast intent action indicating that the state of Wi-Fi p2p connectivity has changed. One extra EXTRA_WIFI_P2P_INFO provides the p2p connection info in the form of a WifiP2pInfo object. Another extra EXTRA_NETWORK_INFO provides the network info in the form of a NetworkInfo. A third extra provides the details of the group and may contain a null. All of these permissions are required to receive this broadcast: Manifest.permission.ACCESS_WIFI_STATE and either Manifest.permission.ACCESS_FINE_LOCATION or Manifest.permission.NEARBY_WIFI_DEVICES

See also:

Constant Value: "android.net.wifi.p2p.CONNECTION_STATE_CHANGE"

WIFI_P2P_DISCOVERY_CHANGED_ACTION

Added in API level 16

public static final String WIFI_P2P_DISCOVERY_CHANGED_ACTION

Broadcast intent action indicating that peer discovery has either started or stopped. One extra EXTRA_DISCOVERY_STATE indicates whether discovery has started or stopped.

Note that discovery will be stopped during a connection setup. If the application tries to re-initiate discovery during this time, it can fail.

Constant Value: "android.net.wifi.p2p.DISCOVERY_STATE_CHANGE"

WIFI_P2P_DISCOVERY_STARTED

Added in API level 16

public static final int WIFI_P2P_DISCOVERY_STARTED

p2p discovery has started

See also:

WIFI_P2P_DISCOVERY_CHANGED_ACTION

Constant Value: 2 (0x00000002)

WIFI_P2P_DISCOVERY_STOPPED

Added in API level 16

public static final int WIFI_P2P_DISCOVERY_STOPPED

p2p discovery has stopped

See also:

WIFI_P2P_DISCOVERY_CHANGED_ACTION

Constant Value: 1 (0x00000001)

WIFI_P2P_LISTEN_STARTED

Added in API level 34

public static final int WIFI_P2P_LISTEN_STARTED

p2p listen has started

See also:

ACTION_WIFI_P2P_LISTEN_STATE_CHANGED

Constant Value: 2 (0x00000002)

WIFI_P2P_LISTEN_STOPPED

Added in API level 34

public static final int WIFI_P2P_LISTEN_STOPPED

p2p listen has stopped

See also:

ACTION_WIFI_P2P_LISTEN_STATE_CHANGED

Constant Value: 1 (0x00000001)

WIFI_P2P_PEERS_CHANGED_ACTION

Added in API level 14

public static final String WIFI_P2P_PEERS_CHANGED_ACTION

Broadcast intent action indicating that the available peer list has changed. This can be sent as a result of peers being found, lost or updated. All of these permissions are required to receive this broadcast: Manifest.permission.ACCESS_WIFI_STATE and either Manifest.permission.ACCESS_FINE_LOCATION or Manifest.permission.NEARBY_WIFI_DEVICES

An extra EXTRA_P2P_DEVICE_LIST provides the full list of current peers. The full list of peers can also be obtained any time with requestPeers(Channel, PeerListListener).

See also:

EXTRA_P2P_DEVICE_LIST

Constant Value: "android.net.wifi.p2p.PEERS_CHANGED"

WIFI_P2P_SCAN_FULL

Added in API level 35

public static final int WIFI_P2P_SCAN_FULL

Run P2P scan on all channels.

Constant Value: 0 (0x00000000)

WIFI_P2P_SCAN_SINGLE_FREQ

Added in API level 35

public static final int WIFI_P2P_SCAN_SINGLE_FREQ

Run P2P scan only on a specific channel.

Constant Value: 2 (0x00000002)

WIFI_P2P_SCAN_SOCIAL

Added in API level 35

public static final int WIFI_P2P_SCAN_SOCIAL

Run P2P scan only on social channels.

Constant Value: 1 (0x00000001)

WIFI_P2P_STATE_CHANGED_ACTION

Added in API level 14

public static final String WIFI_P2P_STATE_CHANGED_ACTION

Broadcast intent action to indicate whether Wi-Fi p2p is enabled or disabled. An extra EXTRA_WIFI_STATE provides the state information as int.

See also:

EXTRA_WIFI_STATE

Constant Value: "android.net.wifi.p2p.STATE_CHANGED"

WIFI_P2P_STATE_DISABLED

Added in API level 14

public static final int WIFI_P2P_STATE_DISABLED

Wi-Fi p2p is disabled.

See also:

WIFI_P2P_STATE_CHANGED_ACTION

Constant Value: 1 (0x00000001)

WIFI_P2P_STATE_ENABLED

Added in API level 14

public static final int WIFI_P2P_STATE_ENABLED

Wi-Fi p2p is enabled.

See also:

WIFI_P2P_STATE_CHANGED_ACTION

Constant Value: 2 (0x00000002)

WIFI_P2P_THIS_DEVICE_CHANGED_ACTION

Added in API level 14

public static final String WIFI_P2P_THIS_DEVICE_CHANGED_ACTION

Broadcast intent action indicating that this device details have changed.

An extra EXTRA_WIFI_P2P_DEVICE provides this device details. The valid device details can also be obtained with requestDeviceInfo(android.net.wifi.p2p.WifiP2pManager.Channel, android.net.wifi.p2p.WifiP2pManager.DeviceInfoListener) when p2p is enabled. To get information notifications on P2P getting enabled refers WIFI_P2P_STATE_ENABLED.

The EXTRA_WIFI_P2P_DEVICE extra contains an anonymized version of the device's MAC address. Callers holding the android.Manifest.permission#LOCAL_MAC_ADDRESS permission can use requestDeviceInfo(Channel, DeviceInfoListener) to obtain the actual MAC address of this device. All of these permissions are required to receive this broadcast: Manifest.permission.ACCESS_WIFI_STATE and either Manifest.permission.ACCESS_FINE_LOCATION or Manifest.permission.NEARBY_WIFI_DEVICES

See also:

EXTRA_WIFI_P2P_DEVICE

Constant Value: "android.net.wifi.p2p.THIS_DEVICE_CHANGED"

Public methods

addExternalApprover

Added in API level 33

public void addExternalApprover (WifiP2pManager.Channel c, 
                MacAddress deviceAddress, 
                WifiP2pManager.ExternalApproverRequestListener listener)

Set the external approver for a specific peer. This API associates a specific peer with an approver. When an incoming request is received from a peer, an authorization request is routed to the attached approver. The approver then calls setConnectionRequestResult(android.net.wifi.p2p.WifiP2pManager.Channel, android.net.MacAddress, int, android.net.wifi.p2p.WifiP2pManager.ActionListener) to send the result to the WiFi service. A specific peer (identified by its MacAddress) can only be attached to a single approver. The previous approver will be detached once a new approver is attached. The approver will also be detached automatically when the channel is closed.

When an approver is attached, ExternalApproverRequestListener.onAttached(MacAddress) is called. When an approver is detached, ExternalApproverRequestListener.onDetached(MacAddress, int) is called. When an incoming request is received, ExternalApproverRequestListener.onConnectionRequested(int, WifiP2pConfig, WifiP2pDevice) is called. When a WPS PIN or a Wi-Fi Direct R2 pairing bootstrapping PIN is generated, ExternalApproverRequestListener.onPinGenerated(MacAddress, String) is called.

The application must have Manifest.permission.NEARBY_WIFI_DEVICES with android:usesPermissionFlags="neverForLocation". If the application does not declare android:usesPermissionFlags="neverForLocation", then it must also have Manifest.permission.ACCESS_FINE_LOCATION.
Requires Manifest.permission.MANAGE_WIFI_NETWORK_SELECTION

Parameters
`c`	`WifiP2pManager.Channel`: is the channel created at `initialize(android.content.Context, android.os.Looper, android.net.wifi.p2p.WifiP2pManager.ChannelListener)`. This value cannot be `null`.
`deviceAddress`	`MacAddress`: the peer which is bound to the external approver. This value cannot be `null`.
`listener`	`WifiP2pManager.ExternalApproverRequestListener`: for callback when the framework needs to notify the external approver. This value cannot be `null`.

addLocalService

Added in API level 16

public void addLocalService (WifiP2pManager.Channel channel, 
                WifiP2pServiceInfo servInfo, 
                WifiP2pManager.ActionListener listener)

Register a local service for service discovery. If a local service is registered, the framework automatically responds to a service discovery request from a peer.

The function call immediately returns after sending a request to add a local service to the framework. The application is notified of a success or failure to add service through listener callbacks ActionListener.onSuccess or ActionListener.onFailure.

The service information is set through WifiP2pServiceInfo.
or its subclass calls WifiP2pUpnpServiceInfo.newInstance or WifiP2pDnsSdServiceInfo.newInstance for a Upnp or Bonjour service respectively

The service information can be cleared with calls to removeLocalService(Channel, WifiP2pServiceInfo, ActionListener) or clearLocalServices(Channel, ActionListener).

If targeting Build.VERSION_CODES.TIRAMISU or later, the application must have Manifest.permission.NEARBY_WIFI_DEVICES with android:usesPermissionFlags="neverForLocation". If the application does not declare android:usesPermissionFlags="neverForLocation", then it must also have Manifest.permission.ACCESS_FINE_LOCATION. If targeting an earlier release than Build.VERSION_CODES.TIRAMISU, the application must have Manifest.permission.ACCESS_FINE_LOCATION.

Parameters
`channel`	`WifiP2pManager.Channel`: is the channel created at `initialize(Context, Looper, ChannelListener)`
`servInfo`	`WifiP2pServiceInfo`: is a local service information.
`listener`	`WifiP2pManager.ActionListener`: for callbacks on success or failure. Can be null.

addServiceRequest

Added in API level 16

public void addServiceRequest (WifiP2pManager.Channel channel, 
                WifiP2pServiceRequest req, 
                WifiP2pManager.ActionListener listener)

Add a service discovery request.

The function call immediately returns after sending a request to add service discovery request to the framework. The application is notified of a success or failure to add service through listener callbacks ActionListener.onSuccess or ActionListener.onFailure.

The USD based service information are set in the service request through WifiP2pServiceRequest.WifiP2pServiceRequest(WifiP2pUsdBasedServiceConfig). Application must use isWiFiDirectR2Supported() to determine whether the device supports USD based service discovery. If isWiFiDirectR2Supported() return false then this method will throw UnsupportedOperationException for service request information containing USD service configuration.

After service discovery request is added, you can initiate service discovery by discoverServices(Channel, ActionListener).

The added service requests can be cleared with calls to removeServiceRequest(android.net.wifi.p2p.WifiP2pManager.Channel, android.net.wifi.p2p.nsd.WifiP2pServiceRequest, android.net.wifi.p2p.WifiP2pManager.ActionListener) or clearServiceRequests(android.net.wifi.p2p.WifiP2pManager.Channel, android.net.wifi.p2p.WifiP2pManager.ActionListener).

Parameters
`channel`	`WifiP2pManager.Channel`: is the channel created at `initialize(Context, Looper, ChannelListener)`
`req`	`WifiP2pServiceRequest`: is the service discovery request.
`listener`	`WifiP2pManager.ActionListener`: for callbacks on success or failure. Can be null.

cancelConnect

Added in API level 14

public void cancelConnect (WifiP2pManager.Channel channel, 
                WifiP2pManager.ActionListener listener)

Cancel any ongoing p2p group negotiation

The function call immediately returns after sending a connection cancellation request to the framework. The application is notified of a success or failure to initiate cancellation through listener callbacks ActionListener.onSuccess or ActionListener.onFailure.

Parameters
`channel`	`WifiP2pManager.Channel`: is the channel created at `initialize(Context, Looper, ChannelListener)`
`listener`	`WifiP2pManager.ActionListener`: for callbacks on success or failure. Can be null.

clearLocalServices

Added in API level 16

public void clearLocalServices (WifiP2pManager.Channel channel, 
                WifiP2pManager.ActionListener listener)

Clear all registered local services of service discovery.

The function call immediately returns after sending a request to clear all local services to the framework. The application is notified of a success or failure to add service through listener callbacks ActionListener.onSuccess or ActionListener.onFailure.

Parameters
`channel`	`WifiP2pManager.Channel`: is the channel created at `initialize(Context, Looper, ChannelListener)`
`listener`	`WifiP2pManager.ActionListener`: for callbacks on success or failure. Can be null.

clearServiceRequests

Added in API level 16

public void clearServiceRequests (WifiP2pManager.Channel channel, 
                WifiP2pManager.ActionListener listener)

Clear all registered service discovery requests.

The function call immediately returns after sending a request to clear all service discovery requests to the framework. The application is notified of a success or failure to add service through listener callbacks ActionListener.onSuccess or ActionListener.onFailure.

Parameters
`channel`	`WifiP2pManager.Channel`: is the channel created at `initialize(Context, Looper, ChannelListener)`
`listener`	`WifiP2pManager.ActionListener`: for callbacks on success or failure. Can be null.

connect

Added in API level 14

public void connect (WifiP2pManager.Channel channel, 
                WifiP2pConfig config, 
                WifiP2pManager.ActionListener listener)

Start a p2p connection to a device with the specified configuration.

The function call immediately returns after sending a connection request to the framework. The application is notified of a success or failure to initiate connect through listener callbacks ActionListener.onSuccess or ActionListener.onFailure.

An app should use WifiP2pConfig.Builder to build the configuration for this API, ex. call WifiP2pConfig.Builder.setDeviceAddress(MacAddress) to set the peer MAC address and WifiP2pConfig.Builder.enablePersistentMode(boolean) to configure the persistent mode.

Register for WIFI_P2P_CONNECTION_CHANGED_ACTION intent to determine when the framework notifies of a change in connectivity.

If the current device is not part of a p2p group, a connect request initiates a group negotiation with the peer.

If the current device is part of an existing p2p group or has created a p2p group with createGroup(Channel, WifiP2pConfig, ActionListener), an invitation to join the group is sent to the peer device.

Parameters
`channel`	`WifiP2pManager.Channel`: is the channel created at `initialize(Context, Looper, ChannelListener)`
`config`	`WifiP2pConfig`: options as described in `WifiP2pConfig` class
`listener`	`WifiP2pManager.ActionListener`: for callbacks on success or failure. Can be null.

createGroup

Added in API level 14

public void createGroup (WifiP2pManager.Channel channel, 
                WifiP2pManager.ActionListener listener)

Create a p2p group with the current device as the group owner. This essentially creates an access point that can accept connections from legacy clients as well as other p2p devices.

Note: This function would normally not be used unless the current device needs to form a p2p connection with a legacy client

The function call immediately returns after sending a group creation request to the framework. The application is notified of a success or failure to initiate group creation through listener callbacks ActionListener.onSuccess or ActionListener.onFailure.

Application can request for the group details with requestGroupInfo(Channel, GroupInfoListener).

Parameters
`channel`	`WifiP2pManager.Channel`: is the channel created at `initialize(Context, Looper, ChannelListener)`
`listener`	`WifiP2pManager.ActionListener`: for callbacks on success or failure. Can be null.

createGroup

Added in API level 29

public void createGroup (WifiP2pManager.Channel channel, 
                WifiP2pConfig config, 
                WifiP2pManager.ActionListener listener)

Create a p2p group with the current device as the group owner. This essentially creates an access point that can accept connections from legacy clients as well as other p2p devices.

An app should use WifiP2pConfig.Builder to build the configuration for a group.

Note: This function would normally not be used unless the current device needs to form a p2p group as a Group Owner and allow peers to join it as either Group Clients or legacy Wi-Fi STAs.

Application can request for the group details with requestGroupInfo(Channel, GroupInfoListener).

Parameters
`channel`	`WifiP2pManager.Channel`: is the channel created at `initialize(Context, Looper, ChannelListener)`. This value cannot be `null`.
`config`	`WifiP2pConfig`: the configuration of a p2p group. This value may be `null`.
`listener`	`WifiP2pManager.ActionListener`: for callbacks on success or failure. Can be null.

discoverPeers

Added in API level 14

public void discoverPeers (WifiP2pManager.Channel channel, 
                WifiP2pManager.ActionListener listener)

Initiate peer discovery. A discovery process involves scanning for available Wi-Fi peers for the purpose of establishing a connection.

The function call immediately returns after sending a discovery request to the framework. The application is notified of a success or failure to initiate discovery through listener callbacks ActionListener.onSuccess or ActionListener.onFailure.

The discovery remains active until a connection is initiated or a p2p group is formed. Register for WIFI_P2P_PEERS_CHANGED_ACTION intent to determine when the framework notifies of a change as peers are discovered.

Upon receiving a WIFI_P2P_PEERS_CHANGED_ACTION intent, an application can request the list of peers using requestPeers(Channel, PeerListListener).

Parameters
`channel`	`WifiP2pManager.Channel`: is the channel created at `initialize(Context, Looper, ChannelListener)`
`listener`	`WifiP2pManager.ActionListener`: for callbacks on success or failure. Can be null.

discoverPeersOnSocialChannels

Added in API level 33

public void discoverPeersOnSocialChannels (WifiP2pManager.Channel channel, 
                WifiP2pManager.ActionListener listener)

Scan only the social channels. A discovery process involves scanning for available Wi-Fi peers for the purpose of establishing a connection.

Upon receiving a WIFI_P2P_PEERS_CHANGED_ACTION intent, an application can request the list of peers using requestPeers(Channel, PeerListListener).

Use isChannelConstrainedDiscoverySupported() to determine whether the device supports this feature. If isChannelConstrainedDiscoverySupported() return false then this method will throw UnsupportedOperationException.

Parameters
`channel`	`WifiP2pManager.Channel`: is the channel created at `initialize(Context, Looper, ChannelListener)` This value cannot be `null`.
`listener`	`WifiP2pManager.ActionListener`: for callbacks on success or failure. This value may be `null`.

discoverPeersOnSpecificFrequency

Added in API level 33

public void discoverPeersOnSpecificFrequency (WifiP2pManager.Channel channel, 
                int frequencyMhz, 
                WifiP2pManager.ActionListener listener)

Scan only a single channel specified by frequency. A discovery process involves scanning for available Wi-Fi peers for the purpose of establishing a connection.

Upon receiving a WIFI_P2P_PEERS_CHANGED_ACTION intent, an application can request the list of peers using requestPeers(Channel, PeerListListener).

Parameters
`channel`	`WifiP2pManager.Channel`: is the channel created at `initialize(Context, Looper, ChannelListener)` This value cannot be `null`.
`frequencyMhz`	`int`: is the frequency of the channel to use for peer discovery.
`listener`	`WifiP2pManager.ActionListener`: for callbacks on success or failure. This value may be `null`.

discoverServices

Added in API level 16

public void discoverServices (WifiP2pManager.Channel channel, 
                WifiP2pManager.ActionListener listener)

Initiate service discovery. A discovery process involves scanning for requested services for the purpose of establishing a connection to a peer that supports an available service.

The function call immediately returns after sending a request to start service discovery to the framework. The application is notified of a success or failure to initiate discovery through listener callbacks ActionListener.onSuccess or ActionListener.onFailure.

The services to be discovered are specified with calls to addServiceRequest(Channel, WifiP2pServiceRequest, ActionListener).

The application is notified of the response against the service discovery request through listener callbacks registered by setServiceResponseListener(Channel, ServiceResponseListener) or setDnsSdResponseListeners(Channel, DnsSdServiceResponseListener, DnsSdTxtRecordListener), or setUpnpServiceResponseListener(Channel, UpnpServiceResponseListener).

Parameters
`channel`	`WifiP2pManager.Channel`: is the channel created at `initialize(Context, Looper, ChannelListener)`
`listener`	`WifiP2pManager.ActionListener`: for callbacks on success or failure. Can be null.

discoverUsdBasedServices

Added in API level 36

public void discoverUsdBasedServices (WifiP2pManager.Channel channel, 
                WifiP2pUsdBasedServiceDiscoveryConfig config, 
                WifiP2pManager.ActionListener listener)

Initiate Un-synchronized service discovery (USD) based service discovery. A discovery process involves scanning for requested services for the purpose of establishing a connection to a peer that supports an available service using USD protocol. This method accepts a WifiP2pUsdBasedServiceDiscoveryConfig object specifying the desired parameters for the service discovery. The configuration object allows to specify either a band or frequency list to scan for service.

The USD based services to be discovered are specified with calls to addServiceRequest(Channel, WifiP2pServiceRequest, ActionListener) with the service request information set through WifiP2pServiceRequest.WifiP2pServiceRequest(WifiP2pUsdBasedServiceConfig)

The application is notified of the response against the service discovery request via ServiceResponseListener.onUsdBasedServiceAvailable(WifiP2pDevice, WifiP2pUsdBasedServiceResponse) listener callback registered by setServiceResponseListener(android.net.wifi.p2p.WifiP2pManager.Channel, android.net.wifi.p2p.WifiP2pManager.ServiceResponseListener) .

Use isWiFiDirectR2Supported() to determine whether the device supports this feature. If isWiFiDirectR2Supported() return false then this method will throw UnsupportedOperationException.

Parameters
`channel`	`WifiP2pManager.Channel`: is the channel created at `initialize(Context, Looper, ChannelListener)` This value cannot be `null`.
`config`	`WifiP2pUsdBasedServiceDiscoveryConfig`: is the configuration for this USD based service discovery This value cannot be `null`.
`listener`	`WifiP2pManager.ActionListener`: for callbacks on success or failure. Can be null.

getListenState

Added in API level 34

public void getListenState (WifiP2pManager.Channel c, 
                Executor executor, 
                Consumer<Integer> resultsCallback)

Get p2p listen state.

This state indicates whether p2p listen has started or stopped. The valid value is one of WIFI_P2P_LISTEN_STOPPED or WIFI_P2P_LISTEN_STARTED.

This state is also included in the ACTION_WIFI_P2P_LISTEN_STATE_CHANGED broadcast event with extra EXTRA_LISTEN_STATE.

Parameters
`c`	`WifiP2pManager.Channel`: It is the channel created at `initialize(Context, Looper, ChannelListener)`. This value cannot be `null`.
`executor`	`Executor`: The executor on which callback will be invoked. This value cannot be `null`. Callback and listener events are dispatched through this `Executor`, providing an easy way to control which thread is used. To dispatch events through the main thread of your application, you can use `Context.getMainExecutor()`. Otherwise, provide an `Executor` that dispatches to an appropriate thread.
`resultsCallback`	`Consumer`: A callback that will return listen state `WIFI_P2P_LISTEN_STOPPED` or `WIFI_P2P_LISTEN_STARTED` This value cannot be `null`.

getP2pMaxAllowedVendorElementsLengthBytes

Added in API level 33

public static int getP2pMaxAllowedVendorElementsLengthBytes ()

Return the maximum total length (in bytes) of all Vendor specific information elements (VSIEs) which can be set using the setVendorElements(android.net.wifi.p2p.WifiP2pManager.Channel, java.util.List, android.net.wifi.p2p.WifiP2pManager.ActionListener). The length is calculated adding the payload length + 2 bytes for each VSIE (2 bytes: 1 byte for type and 1 byte for length).

Returns
`int`

initialize

Added in API level 14

public WifiP2pManager.Channel initialize (Context srcContext, 
                Looper srcLooper, 
                WifiP2pManager.ChannelListener listener)

Registers the application with the Wi-Fi framework. This function must be the first to be called before any p2p operations are performed.

Parameters
`srcContext`	`Context`: is the context of the source
`srcLooper`	`Looper`: is the Looper on which the callbacks are receivied
`listener`	`WifiP2pManager.ChannelListener`: for callback at loss of framework communication. Can be null.

Returns
`WifiP2pManager.Channel`	Channel instance that is necessary for performing any further p2p operations

isChannelConstrainedDiscoverySupported

Added in API level 33

public boolean isChannelConstrainedDiscoverySupported ()

Check if this device supports discovery limited to a specific frequency or the social channels. Gates whether discoverPeersOnSpecificFrequency(android.net.wifi.p2p.WifiP2pManager.Channel, int, android.net.wifi.p2p.WifiP2pManager.ActionListener) and discoverPeersOnSocialChannels(android.net.wifi.p2p.WifiP2pManager.Channel, android.net.wifi.p2p.WifiP2pManager.ActionListener) methods are functional on this device.

Returns
`boolean`	`true` if supported, `false` otherwise.

isGroupClientRemovalSupported

Added in API level 33

public boolean isGroupClientRemovalSupported ()

Check if this device supports removing clients from a group. Gates whether the removeClient(android.net.wifi.p2p.WifiP2pManager.Channel, android.net.MacAddress, android.net.wifi.p2p.WifiP2pManager.ActionListener) method is functional on this device.

Returns
`boolean`	`true` if supported, `false` otherwise.

isGroupOwnerIPv6LinkLocalAddressProvided

Added in API level 34

public boolean isGroupOwnerIPv6LinkLocalAddressProvided ()

Checks whether this device, while being a group client, can discover and deliver the group owner's IPv6 link-local address.

If this method returns true and connect(android.net.wifi.p2p.WifiP2pManager.Channel, android.net.wifi.p2p.WifiP2pConfig, android.net.wifi.p2p.WifiP2pManager.ActionListener) method is called with WifiP2pConfig having WifiP2pConfig.GROUP_CLIENT_IP_PROVISIONING_MODE_IPV6_LINK_LOCAL as the group client IP provisioning mode, then the group owner's IPv6 link-local address will be delivered in the group client via WIFI_P2P_CONNECTION_CHANGED_ACTION broadcast intent (i.e, group owner address in EXTRA_WIFI_P2P_INFO). If this method returns false, then IPv6 link-local addresses can still be used, but it is the responsibility of the caller to discover that address in other ways, e.g. using out-of-band communication.

Returns
`boolean`	`true` if supported, `false` otherwise.

isPccModeSupported

Added in API level 36

public boolean isPccModeSupported ()

Check if this device supports P2P Connection Compatibility Mode(R1/R2 compatibility mode).

Returns
`boolean`	true if this device supports hosting an autonomous Group Owner which allows legacy P2P clients and R2 clients to join the group in PCC Mode and also supports connecting to a Group Owner either using legacy security mode (WPA2-PSK) or R2 mandated security mode(WPA3-SAE) in PCC Mode.

isSetVendorElementsSupported

Added in API level 33

public boolean isSetVendorElementsSupported ()

Check if this device supports setting vendor elements. Gates whether the setVendorElements(android.net.wifi.p2p.WifiP2pManager.Channel, java.util.List, android.net.wifi.p2p.WifiP2pManager.ActionListener) method is functional on this device.

Returns
`boolean`	`true` if supported, `false` otherwise.

isWiFiDirectR2Supported

Added in API level 36

public boolean isWiFiDirectR2Supported ()

Check if this device supports Wi-Fi Direct R2 (P2P2).

Returns
`boolean`	true if this device supports Wi-Fi Alliance Wi-Fi Direct R2 (Support for P2P2 IE and establishing connection by using the P2P pairing protocol), false otherwise. For more details, visit https://www.wi-fi.org/ and search for "Wi-Fi Direct" .

registerWifiP2pListener

Added in API level 35

public void registerWifiP2pListener (Executor executor, 
                WifiP2pManager.WifiP2pListener listener)

Add a listener to listen to Wi-Fi p2p various changes.

Parameters
`executor`	`Executor`: the Executor on which to execute the callbacks. This value cannot be `null`. Callback and listener events are dispatched through this `Executor`, providing an easy way to control which thread is used. To dispatch events through the main thread of your application, you can use `Context.getMainExecutor()`. Otherwise, provide an `Executor` that dispatches to an appropriate thread.
`listener`	`WifiP2pManager.WifiP2pListener`: listener for the Wi-Fi p2p connection changes. This value cannot be `null`.

Throws
`SecurityException`	if the caller is missing required permissions.
`IllegalArgumentException`	if incorrect input arguments are provided.

removeClient

Added in API level 33

public void removeClient (WifiP2pManager.Channel channel, 
                MacAddress peerAddress, 
                WifiP2pManager.ActionListener listener)

Remove the client with the MAC address from the group.

The function call immediately returns after sending a client removal request to the framework. The application is notified of a success or failure to initiate client removal through listener callbacks ActionListener.onSuccess or ActionListener.onFailure.

The callbacks are triggered on the thread specified when initializing the channel, see initialize(Context, Looper, ChannelListener).

Use isGroupClientRemovalSupported() to determine whether the device supports this feature. If isGroupClientRemovalSupported() return false then this method will throw UnsupportedOperationException.

Parameters
`channel`	`WifiP2pManager.Channel`: is the channel created at `initialize(Context, Looper, ChannelListener)` This value cannot be `null`.
`peerAddress`	`MacAddress`: MAC address of the client. This value cannot be `null`.
`listener`	`WifiP2pManager.ActionListener`: for callbacks on success or failure. Can be null.

removeExternalApprover

Added in API level 33

public void removeExternalApprover (WifiP2pManager.Channel c, 
                MacAddress deviceAddress, 
                WifiP2pManager.ActionListener listener)

Remove the external approver for a specific peer. The application must have Manifest.permission.NEARBY_WIFI_DEVICES with android:usesPermissionFlags="neverForLocation". If the application does not declare android:usesPermissionFlags="neverForLocation", then it must also have Manifest.permission.ACCESS_FINE_LOCATION.
Requires Manifest.permission.MANAGE_WIFI_NETWORK_SELECTION

Parameters
`c`	`WifiP2pManager.Channel`: is the channel created at `initialize(android.content.Context, android.os.Looper, android.net.wifi.p2p.WifiP2pManager.ChannelListener)`. This value cannot be `null`.
`deviceAddress`	`MacAddress`: the peer which is bound to the external approver. This value cannot be `null`.
`listener`	`WifiP2pManager.ActionListener`: for callback on success or failure. This value may be `null`.

removeGroup

Added in API level 14

public void removeGroup (WifiP2pManager.Channel channel, 
                WifiP2pManager.ActionListener listener)

Remove the current p2p group.

The function call immediately returns after sending a group removal request to the framework. The application is notified of a success or failure to initiate group removal through listener callbacks ActionListener.onSuccess or ActionListener.onFailure.

Parameters
`channel`	`WifiP2pManager.Channel`: is the channel created at `initialize(Context, Looper, ChannelListener)`
`listener`	`WifiP2pManager.ActionListener`: for callbacks on success or failure. Can be null.

removeLocalService

Added in API level 16

public void removeLocalService (WifiP2pManager.Channel channel, 
                WifiP2pServiceInfo servInfo, 
                WifiP2pManager.ActionListener listener)

Remove a registered local service added with addLocalService(Channel, WifiP2pServiceInfo, ActionListener)

The function call immediately returns after sending a request to remove a local service to the framework. The application is notified of a success or failure to add service through listener callbacks ActionListener.onSuccess or ActionListener.onFailure.

Parameters
`channel`	`WifiP2pManager.Channel`: is the channel created at `initialize(Context, Looper, ChannelListener)`
`servInfo`	`WifiP2pServiceInfo`: is the local service information.
`listener`	`WifiP2pManager.ActionListener`: for callbacks on success or failure. Can be null.

removeServiceRequest

Added in API level 16

public void removeServiceRequest (WifiP2pManager.Channel channel, 
                WifiP2pServiceRequest req, 
                WifiP2pManager.ActionListener listener)

Remove a specified service discovery request added with addServiceRequest(Channel, WifiP2pServiceRequest, ActionListener)

The function call immediately returns after sending a request to remove service discovery request to the framework. The application is notified of a success or failure to add service through listener callbacks ActionListener.onSuccess or ActionListener.onFailure.

Parameters
`channel`	`WifiP2pManager.Channel`: is the channel created at `initialize(Context, Looper, ChannelListener)`
`req`	`WifiP2pServiceRequest`: is the service discovery request.
`listener`	`WifiP2pManager.ActionListener`: for callbacks on success or failure. Can be null.

requestConnectionInfo

Added in API level 14

public void requestConnectionInfo (WifiP2pManager.Channel channel, 
                WifiP2pManager.ConnectionInfoListener listener)

Request device connection info.

Parameters
`channel`	`WifiP2pManager.Channel`: is the channel created at `initialize(Context, Looper, ChannelListener)`
`listener`	`WifiP2pManager.ConnectionInfoListener`: for callback when connection info is available. Can be null.

requestDeviceInfo

Added in API level 29

public void requestDeviceInfo (WifiP2pManager.Channel c, 
                WifiP2pManager.DeviceInfoListener listener)

Request Device Info

This method provides the device info in the form of a WifiP2pDevice. Valid WifiP2pDevice is returned when p2p is enabled. To get information notifications on P2P getting enabled refers WIFI_P2P_STATE_ENABLED.

This WifiP2pDevice is returned using the DeviceInfoListener listener.

WifiP2pDevice.deviceAddress is only available if the caller holds the android.Manifest.permission#LOCAL_MAC_ADDRESS permission, and holds the anonymized MAC address (02:00:00:00:00:00) otherwise.

This information is also included in the WIFI_P2P_THIS_DEVICE_CHANGED_ACTION broadcast event with extra EXTRA_WIFI_P2P_DEVICE.

Parameters
`c`	`WifiP2pManager.Channel`: is the channel created at `initialize(android.content.Context, android.os.Looper, android.net.wifi.p2p.WifiP2pManager.ChannelListener)`. This value cannot be `null`.
`listener`	`WifiP2pManager.DeviceInfoListener`: for callback when network info is available. This value cannot be `null`.

requestDirInfo

Added in API level 36

public void requestDirInfo (WifiP2pManager.Channel c, 
                Executor executor, 
                OutcomeReceiver<WifiP2pDirInfo, Exception> callback)

Get the Device Identity Resolution (DIR) Information. See WifiP2pDirInfo for details Note: The results callback returns null if the device doesn't have any persistent group with device identity key information.

Use isWiFiDirectR2Supported() to determine whether the device supports this feature. If isWiFiDirectR2Supported() return false then this method will throw UnsupportedOperationException.

Parameters
`c`	`WifiP2pManager.Channel`: It is the channel created at `initialize(Context, Looper, ChannelListener)`. This value cannot be `null`.
`executor`	`Executor`: The executor on which callback will be invoked. This value cannot be `null`. Callback and listener events are dispatched through this `Executor`, providing an easy way to control which thread is used. To dispatch events through the main thread of your application, you can use `Context.getMainExecutor()`. Otherwise, provide an `Executor` that dispatches to an appropriate thread.
`callback`	`OutcomeReceiver`: An OutcomeReceiver callback for receiving `WifiP2pDirInfo` via `OutcomeReceiver.onResult(Object)`. This callback will return null when DIR info doesn't exist. When this API call fails due to permission issues, state machine is busy etc., `OutcomeReceiver.onError(Throwable)` is called.

requestDiscoveryState

Added in API level 29

public void requestDiscoveryState (WifiP2pManager.Channel c, 
                WifiP2pManager.DiscoveryStateListener listener)

Request p2p discovery state.

This state indicates whether p2p discovery has started or stopped. The valid value is one of WIFI_P2P_DISCOVERY_STARTED or WIFI_P2P_DISCOVERY_STOPPED. The state is returned using the DiscoveryStateListener listener.

This state is also included in the WIFI_P2P_DISCOVERY_CHANGED_ACTION broadcast event with extra EXTRA_DISCOVERY_STATE.

Parameters
`c`	`WifiP2pManager.Channel`: is the channel created at `initialize(Context, Looper, ChannelListener)`. This value cannot be `null`.
`listener`	`WifiP2pManager.DiscoveryStateListener`: for callback when discovery state is available. This value cannot be `null`.

requestGroupInfo

Added in API level 14

public void requestGroupInfo (WifiP2pManager.Channel channel, 
                WifiP2pManager.GroupInfoListener listener)

Request p2p group info.

Parameters
`channel`	`WifiP2pManager.Channel`: is the channel created at `initialize(Context, Looper, ChannelListener)`
`listener`	`WifiP2pManager.GroupInfoListener`: for callback when group info is available. Can be null.

requestNetworkInfo

Added in API level 29

public void requestNetworkInfo (WifiP2pManager.Channel c, 
                WifiP2pManager.NetworkInfoListener listener)

Request network info.

This method provides the network info in the form of a NetworkInfo. NetworkInfo.isAvailable() indicates the p2p availability and NetworkInfo.getDetailedState() reports the current fine-grained state of the network. This NetworkInfo is returned using the NetworkInfoListener listener.

This information is also included in the WIFI_P2P_CONNECTION_CHANGED_ACTION broadcast event with extra EXTRA_NETWORK_INFO.

Parameters
`c`	`WifiP2pManager.Channel`: is the channel created at `initialize(Context, Looper, ChannelListener)`. This value cannot be `null`.
`listener`	`WifiP2pManager.NetworkInfoListener`: for callback when network info is available. This value cannot be `null`.

requestP2pState

Added in API level 29

public void requestP2pState (WifiP2pManager.Channel c, 
                WifiP2pManager.P2pStateListener listener)

Request p2p enabled state.

This state indicates whether Wi-Fi p2p is enabled or disabled. The valid value is one of WIFI_P2P_STATE_DISABLED or WIFI_P2P_STATE_ENABLED. The state is returned using the P2pStateListener listener.

This state is also included in the WIFI_P2P_STATE_CHANGED_ACTION broadcast event with extra EXTRA_WIFI_STATE.

Parameters
`c`	`WifiP2pManager.Channel`: is the channel created at `initialize(Context, Looper, ChannelListener)`. This value cannot be `null`.
`listener`	`WifiP2pManager.P2pStateListener`: for callback when p2p state is available. This value cannot be `null`.

requestPeers

Added in API level 14

public void requestPeers (WifiP2pManager.Channel channel, 
                WifiP2pManager.PeerListListener listener)

Request the current list of peers.

Parameters
`channel`	`WifiP2pManager.Channel`: is the channel created at `initialize(Context, Looper, ChannelListener)`
`listener`	`WifiP2pManager.PeerListListener`: for callback when peer list is available. Can be null.

setConnectionRequestResult

Added in API level 33

public void setConnectionRequestResult (WifiP2pManager.Channel c, 
                MacAddress deviceAddress, 
                int result, 
                String pinOrPassword, 
                WifiP2pManager.ActionListener listener)

Set the result with PIN for the incoming request from a specific peer. The application must have Manifest.permission.NEARBY_WIFI_DEVICES with android:usesPermissionFlags="neverForLocation". If the application does not declare android:usesPermissionFlags="neverForLocation", then it must also have Manifest.permission.ACCESS_FINE_LOCATION.
Requires Manifest.permission.MANAGE_WIFI_NETWORK_SELECTION

Parameters
`c`	`WifiP2pManager.Channel`: is the channel created at `initialize(android.content.Context, android.os.Looper, android.net.wifi.p2p.WifiP2pManager.ChannelListener)`. This value cannot be `null`.
`deviceAddress`	`MacAddress`: the peer which is bound to the external approver. This value cannot be `null`.
`result`	`int`: the response for the incoming request. Value is `CONNECTION_REQUEST_ACCEPT`, `CONNECTION_REQUEST_REJECT`, `CONNECTION_REQUEST_DEFER_TO_SERVICE`, `CONNECTION_REQUEST_DEFER_SHOW_PIN_TO_SERVICE`, or `CONNECTION_REQUEST_DEFER_SHOW_PASSWORD_TO_SERVICE`
`pinOrPassword`	`String`: the WPS PIN or Wi-Fi Direct R2 pairing bootstrapping PIN/Password for the incoming request. This value may be `null`.
`listener`	`WifiP2pManager.ActionListener`: for callback on success or failure. This value may be `null`.

setConnectionRequestResult

Added in API level 33

public void setConnectionRequestResult (WifiP2pManager.Channel c, 
                MacAddress deviceAddress, 
                int result, 
                WifiP2pManager.ActionListener listener)

Set the result for the incoming request from a specific peer. The application must have Manifest.permission.NEARBY_WIFI_DEVICES with android:usesPermissionFlags="neverForLocation". If the application does not declare android:usesPermissionFlags="neverForLocation", then it must also have Manifest.permission.ACCESS_FINE_LOCATION.
Requires Manifest.permission.MANAGE_WIFI_NETWORK_SELECTION

Parameters
`c`	`WifiP2pManager.Channel`: is the channel created at `initialize(android.content.Context, android.os.Looper, android.net.wifi.p2p.WifiP2pManager.ChannelListener)`. This value cannot be `null`.
`deviceAddress`	`MacAddress`: the peer which is bound to the external approver. This value cannot be `null`.
`result`	`int`: the response for the incoming request. Value is `CONNECTION_REQUEST_ACCEPT`, `CONNECTION_REQUEST_REJECT`, `CONNECTION_REQUEST_DEFER_TO_SERVICE`, `CONNECTION_REQUEST_DEFER_SHOW_PIN_TO_SERVICE`, or `CONNECTION_REQUEST_DEFER_SHOW_PASSWORD_TO_SERVICE`
`listener`	`WifiP2pManager.ActionListener`: for callback on success or failure. This value may be `null`.

setDnsSdResponseListeners

Added in API level 16

public void setDnsSdResponseListeners (WifiP2pManager.Channel channel, 
                WifiP2pManager.DnsSdServiceResponseListener servListener, 
                WifiP2pManager.DnsSdTxtRecordListener txtListener)

see discoverServices(Channel, ActionListener) for the detail.

Parameters
`servListener`	`WifiP2pManager.DnsSdServiceResponseListener`: is for listening to a Bonjour service response
`txtListener`	`WifiP2pManager.DnsSdTxtRecordListener`: is for listening to a Bonjour TXT record response

setServiceResponseListener

Added in API level 16

public void setServiceResponseListener (WifiP2pManager.Channel channel, 
                WifiP2pManager.ServiceResponseListener listener)

Register a callback to be invoked on receiving service discovery response. Used only for vendor specific protocol right now. For Bonjour or Upnp, use setDnsSdResponseListeners(Channel, DnsSdServiceResponseListener, DnsSdTxtRecordListener) or setUpnpServiceResponseListener(Channel, UpnpServiceResponseListener) respectively.

see discoverServices(Channel, ActionListener) for the detail.

Parameters
`channel`	`WifiP2pManager.Channel`: is the channel created at `initialize(Context, Looper, ChannelListener)`
`listener`	`WifiP2pManager.ServiceResponseListener`: for callbacks on receiving service discovery response.

setUpnpServiceResponseListener

Added in API level 16

public void setUpnpServiceResponseListener (WifiP2pManager.Channel channel, 
                WifiP2pManager.UpnpServiceResponseListener listener)

see discoverServices(Channel, ActionListener) for the detail.

Parameters
`channel`	`WifiP2pManager.Channel`: is the channel created at `initialize(Context, Looper, ChannelListener)`
`listener`	`WifiP2pManager.UpnpServiceResponseListener`: for callbacks on receiving service discovery response.

setVendorElements

Added in API level 33

public void setVendorElements (WifiP2pManager.Channel c, 
                List<ScanResult.InformationElement> vendorElements, 
                WifiP2pManager.ActionListener listener)

Set/Clear vendor specific information elements (VSIEs) to be published during Wi-Fi Direct (P2P) discovery. Once Channel.close() is called, the vendor information elements will be cleared from framework. The information element format is defined in the IEEE 802.11-2016 spec Table 9-77.

To clear the previously set vendor elements, call this API with an empty List.

The maximum accumulated length of all VSIEs must be before the limit specified by getP2pMaxAllowedVendorElementsLengthBytes().

To publish vendor elements, this API should be called before peer discovery API, ex. discoverPeers(android.net.wifi.p2p.WifiP2pManager.Channel, android.net.wifi.p2p.WifiP2pManager.ActionListener).

Use isSetVendorElementsSupported() to determine whether the device supports this feature. If isSetVendorElementsSupported() return false then this method will throw UnsupportedOperationException.
Requires Manifest.permission.NEARBY_WIFI_DEVICES and Manifest.permission.OVERRIDE_WIFI_CONFIG

Parameters
`c`	`WifiP2pManager.Channel`: is the channel created at `initialize(android.content.Context, android.os.Looper, android.net.wifi.p2p.WifiP2pManager.ChannelListener)`. This value cannot be `null`.
`vendorElements`	`List`: application information as vendor-specific information elements. This value cannot be `null`.
`listener`	`WifiP2pManager.ActionListener`: for callback when network info is available. This value may be `null`.

setWfdInfo

Added in API level 34

public void setWfdInfo (WifiP2pManager.Channel channel, 
                WifiP2pWfdInfo wfdInfo, 
                WifiP2pManager.ActionListener listener)

Set Wifi Display information.
Requires Manifest.permission.CONFIGURE_WIFI_DISPLAY

Parameters
`channel`	`WifiP2pManager.Channel`: is the channel created at `initialize(Context, Looper, ChannelListener)` This value cannot be `null`.
`wfdInfo`	`WifiP2pWfdInfo`: the Wifi Display information to set This value cannot be `null`.
`listener`	`WifiP2pManager.ActionListener`: for callbacks on success or failure. Can be null.

startListening

Added in API level 33

public void startListening (WifiP2pManager.Channel channel, 
                WifiP2pManager.ActionListener listener)

Force p2p to enter listen state. When this API is called, this device will periodically enter LISTENING state until stopListening(android.net.wifi.p2p.WifiP2pManager.Channel, android.net.wifi.p2p.WifiP2pManager.ActionListener) or stopPeerDiscovery(android.net.wifi.p2p.WifiP2pManager.Channel, android.net.wifi.p2p.WifiP2pManager.ActionListener) are called. While in LISTENING state, this device will dwell at its social channel and respond to probe requests from other Wi-Fi Direct peers.

Parameters
`channel`	`WifiP2pManager.Channel`: is the channel created at `initialize(android.content.Context, android.os.Looper, android.net.wifi.p2p.WifiP2pManager.ChannelListener)` This value cannot be `null`.
`listener`	`WifiP2pManager.ActionListener`: for callbacks on success or failure. This value may be `null`.

startPeerDiscovery

Added in API level 35

public void startPeerDiscovery (WifiP2pManager.Channel channel, 
                WifiP2pDiscoveryConfig config, 
                WifiP2pManager.ActionListener listener)

Initiate peer discovery. A discovery process involves scanning for available Wi-Fi peers for the purpose of establishing a connection. See discoverPeers(android.net.wifi.p2p.WifiP2pManager.Channel, android.net.wifi.p2p.WifiP2pManager.ActionListener) for more details. This method accepts a WifiP2pDiscoveryConfig object specifying the desired parameters for the peer discovery. The configuration object allows the specification of the scan type (ex. FULL, SOCIAL) and the inclusion of vendor-specific configuration data. The application must have Manifest.permission.NEARBY_WIFI_DEVICES with android:usesPermissionFlags="neverForLocation". If the application does not declare android:usesPermissionFlags="neverForLocation", then it must also have Manifest.permission.ACCESS_FINE_LOCATION.

Parameters
`channel`	`WifiP2pManager.Channel`: is the channel created at `initialize(Context, Looper, ChannelListener)` This value cannot be `null`.
`config`	`WifiP2pDiscoveryConfig`: is the configuration for this peer discovery This value cannot be `null`.
`listener`	`WifiP2pManager.ActionListener`: for callbacks on success or failure. This value may be `null`.

startUsdBasedLocalServiceAdvertisement

Added in API level 36

public void startUsdBasedLocalServiceAdvertisement (WifiP2pManager.Channel channel, 
                WifiP2pServiceInfo servInfo, 
                WifiP2pUsdBasedLocalServiceAdvertisementConfig config, 
                WifiP2pManager.ActionListener listener)

Start a service discovery advertisement using Un-synchronized service discovery (USD). Once startUsdBasedLocalServiceAdvertisement(android.net.wifi.p2p.WifiP2pManager.Channel, android.net.wifi.p2p.nsd.WifiP2pServiceInfo, android.net.wifi.p2p.WifiP2pUsdBasedLocalServiceAdvertisementConfig, android.net.wifi.p2p.WifiP2pManager.ActionListener) is called, the device will go to the channel frequency requested via WifiP2pUsdBasedLocalServiceAdvertisementConfig and responds to a service discovery request from a peer.

The service information is set through WifiP2pServiceInfo.WifiP2pServiceInfo(WifiP2pUsdBasedServiceConfig)

The function call immediately returns after sending a request to start the service advertisement to the framework. The application is notified of a success or failure to start service advertisement through listener callbacks ActionListener.onSuccess or ActionListener.onFailure.

The service information can be cleared with calls to removeLocalService(Channel, WifiP2pServiceInfo, ActionListener) or clearLocalServices(Channel, ActionListener).

Use isWiFiDirectR2Supported() to determine whether the device supports this feature. If isWiFiDirectR2Supported() return false then this method will throw UnsupportedOperationException.

Parameters
`channel`	`WifiP2pManager.Channel`: is the channel created at `initialize(Context, Looper, ChannelListener)` This value cannot be `null`.
`servInfo`	`WifiP2pServiceInfo`: is a local service information. This value cannot be `null`.
`config`	`WifiP2pUsdBasedLocalServiceAdvertisementConfig`: is the configuration for this service discovery advertisement. This value cannot be `null`.
`listener`	`WifiP2pManager.ActionListener`: for callbacks on success or failure. Can be null.

stopListening

Added in API level 33

public void stopListening (WifiP2pManager.Channel channel, 
                WifiP2pManager.ActionListener listener)

Force p2p to exit listen state. When this API is called, this device will stop entering LISTENING state periodically which is triggered by startListening(android.net.wifi.p2p.WifiP2pManager.Channel, android.net.wifi.p2p.WifiP2pManager.ActionListener). If there are running peer discovery which is triggered by discoverPeers(android.net.wifi.p2p.WifiP2pManager.Channel, android.net.wifi.p2p.WifiP2pManager.ActionListener) or running service discovery which is triggered by discoverServices(android.net.wifi.p2p.WifiP2pManager.Channel, android.net.wifi.p2p.WifiP2pManager.ActionListener), they will be stopped as well.

Parameters
`channel`	`WifiP2pManager.Channel`: is the channel created at `initialize(android.content.Context, android.os.Looper, android.net.wifi.p2p.WifiP2pManager.ChannelListener)` This value cannot be `null`.
`listener`	`WifiP2pManager.ActionListener`: for callbacks on success or failure. This value may be `null`.

stopPeerDiscovery

Added in API level 16

public void stopPeerDiscovery (WifiP2pManager.Channel channel, 
                WifiP2pManager.ActionListener listener)

Stop an ongoing peer discovery

The function call immediately returns after sending a stop request to the framework. The application is notified of a success or failure to initiate stop through listener callbacks ActionListener.onSuccess or ActionListener.onFailure.

If P2P Group is in the process of being created, this call will fail (report failure via listener. The applicantion should listen to WIFI_P2P_CONNECTION_CHANGED_ACTION to ensure the state is not NetworkInfo.State.CONNECTING and repeat calling when the state changes.

Parameters
`channel`	`WifiP2pManager.Channel`: is the channel created at `initialize(Context, Looper, ChannelListener)`
`listener`	`WifiP2pManager.ActionListener`: for callbacks on success or failure. Can be null.

unregisterWifiP2pListener

Added in API level 35

public void unregisterWifiP2pListener (WifiP2pManager.WifiP2pListener listener)

Remove a listener added using registerWifiP2pListener(java.util.concurrent.Executor, android.net.wifi.p2p.WifiP2pManager.WifiP2pListener)

Parameters
`listener`	`WifiP2pManager.WifiP2pListener`: the listener to be removed. This value cannot be `null`.

Throws
`IllegalArgumentException`	if incorrect input arguments are provided.

validateDirInfo

Added in API level 36

public void validateDirInfo (WifiP2pManager.Channel c, 
                WifiP2pDirInfo dirInfo, 
                Executor executor, 
                OutcomeReceiver<Boolean, Exception> callback)

Validate the Device Identity Resolution (DIR) Information of a P2P device. See WifiP2pDirInfo for details. Framework takes the WifiP2pDirInfo and derives a set of Tag values based on the cached Device Identity Keys (DevIK) of all paired peers saved in the device. If a derived Tag value matches the Tag value received in the WifiP2pDirInfo, the device is identified as a paired peer and returns true.

Use isWiFiDirectR2Supported() to determine whether the device supports this feature. If isWiFiDirectR2Supported() return false then this method will throw UnsupportedOperationException.

Parameters
`c`	`WifiP2pManager.Channel`: It is the channel created at `initialize(Context, Looper, ChannelListener)`. This value cannot be `null`.
`dirInfo`	`WifiP2pDirInfo`: `WifiP2pDirInfo` to validate. This value cannot be `null`.
`executor`	`Executor`: The executor on which callback will be invoked. This value cannot be `null`. Callback and listener events are dispatched through this `Executor`, providing an easy way to control which thread is used. To dispatch events through the main thread of your application, you can use `Context.getMainExecutor()`. Otherwise, provide an `Executor` that dispatches to an appropriate thread.
`callback`	`OutcomeReceiver`: An OutcomeReceiver callback for receiving the result via `OutcomeReceiver.onResult(Object)` indicating whether the DIR info of P2P device is of a paired device. {code true} for paired, `false` for not paired. When this API call fails due to permission issues, state machine is busy etc., `OutcomeReceiver.onError(Throwable)` is called. This value cannot be `null`.

WifiP2pManager

Summary

Nested classes

Constants

Public methods

Inherited methods

Constants

ACTION_WIFI_P2P_LISTEN_STATE_CHANGED

ACTION_WIFI_P2P_REQUEST_RESPONSE_CHANGED

BUSY

CONNECTION_REQUEST_ACCEPT

CONNECTION_REQUEST_DEFER_SHOW_PASSWORD_TO_SERVICE

CONNECTION_REQUEST_DEFER_SHOW_PIN_TO_SERVICE

CONNECTION_REQUEST_DEFER_TO_SERVICE

CONNECTION_REQUEST_REJECT

ERROR

EXTRA_DISCOVERY_STATE

EXTRA_LISTEN_STATE

EXTRA_NETWORK_INFO

EXTRA_P2P_DEVICE_LIST

EXTRA_REQUEST_CONFIG

EXTRA_REQUEST_RESPONSE

EXTRA_WIFI_P2P_DEVICE

EXTRA_WIFI_P2P_GROUP

EXTRA_WIFI_P2P_INFO

EXTRA_WIFI_STATE

GROUP_CREATION_FAILURE_REASON_CONNECTION_CANCELLED

GROUP_CREATION_FAILURE_REASON_GROUP_REMOVED

GROUP_CREATION_FAILURE_REASON_INVITATION_FAILED

GROUP_CREATION_FAILURE_REASON_PROVISION_DISCOVERY_FAILED

GROUP_CREATION_FAILURE_REASON_TIMED_OUT

GROUP_CREATION_FAILURE_REASON_USER_REJECTED

NO_PERMISSION

NO_SERVICE_REQUESTS

P2P_UNSUPPORTED

WIFI_P2P_CONNECTION_CHANGED_ACTION

WIFI_P2P_DISCOVERY_CHANGED_ACTION

WIFI_P2P_DISCOVERY_STARTED

WIFI_P2P_DISCOVERY_STOPPED

WIFI_P2P_LISTEN_STARTED

WIFI_P2P_LISTEN_STOPPED

WIFI_P2P_PEERS_CHANGED_ACTION

WIFI_P2P_SCAN_FULL

WIFI_P2P_SCAN_SINGLE_FREQ

WIFI_P2P_SCAN_SOCIAL

WIFI_P2P_STATE_CHANGED_ACTION

WIFI_P2P_STATE_DISABLED

WIFI_P2P_STATE_ENABLED

WIFI_P2P_THIS_DEVICE_CHANGED_ACTION

Public methods

addExternalApprover

addLocalService

addServiceRequest

cancelConnect

clearLocalServices

clearServiceRequests

connect

createGroup

createGroup

discoverPeers

discoverPeersOnSocialChannels

discoverPeersOnSpecificFrequency

discoverServices

discoverUsdBasedServices

getListenState

getP2pMaxAllowedVendorElementsLengthBytes

initialize

isChannelConstrainedDiscoverySupported

isGroupClientRemovalSupported

isGroupOwnerIPv6LinkLocalAddressProvided

isPccModeSupported

isSetVendorElementsSupported

isWiFiDirectR2Supported

registerWifiP2pListener

removeClient

removeExternalApprover

removeGroup

removeLocalService

removeServiceRequest

requestConnectionInfo