Skip to content

Most visited

Recently visited

navigation
Added in API level 14

android.net.wifi.p2p

Provides classes to create peer-to-peer (P2P) connections with Wi-Fi Direct.

Using these APIs, you can discover and connect to other devices when each device supports Wi-Fi Direct, then communicate over a speedy connection across distances much longer than a Bluetooth connection. The primary class you need to work with is WifiP2pManager, which you can acquire by calling getSystemService(WIFI_P2P_SERVICE). The WifiP2pManager includes APIs that allow you to:

Several other interfaces and classes are necessary as well, such as:

  • The WifiP2pManager.ActionListener interface allows you to receive callbacks when an operation such as discovering peers or connecting to them succeeds or fails.
  • WifiP2pManager.PeerListListener interface allows you to receive information about discovered peers. The callback provides a WifiP2pDeviceList, from which you can retrieve a WifiP2pDevice object for each device within range and get information such as the device name, address, device type, the WPS configurations the device supports, and more.
  • The WifiP2pManager.GroupInfoListener interface allows you to receive information about a P2P group. The callback provides a WifiP2pGroup object, which provides group information such as the owner, the network name, and passphrase.
  • WifiP2pManager.ConnectionInfoListener interface allows you to receive information about the current connection. The callback provides a WifiP2pInfo object, which has information such as whether a group has been formed and who is the group owner.

In order to use the Wi-Fi P2P APIs, your app must request the following user permissions:

For example code, see the Wi-Fi Direct Demo sample application.

Note: Not all Android-powered devices support Wi-Fi Direct. If your application uses Wi-Fi Direct, declare so with a <uses-feature> element in the manifest file:

<manifest ...>
    <uses-feature android:name="android.hardware.wifi.direct" />
    ...
</manifest>

Interfaces

WifiP2pManager.ActionListener Interface for callback invocation on an application action  
WifiP2pManager.ChannelListener Interface for callback invocation when framework channel is lost  
WifiP2pManager.ConnectionInfoListener Interface for callback invocation when connection info is available  
WifiP2pManager.DnsSdServiceResponseListener Interface for callback invocation when Bonjour service discovery response is received  
WifiP2pManager.DnsSdTxtRecordListener Interface for callback invocation when Bonjour TXT record is available for a service  
WifiP2pManager.GroupInfoListener Interface for callback invocation when group info is available  
WifiP2pManager.PeerListListener Interface for callback invocation when peer list is available  
WifiP2pManager.ServiceResponseListener Interface for callback invocation when service discovery response other than Upnp or Bonjour is received  
WifiP2pManager.UpnpServiceResponseListener Interface for callback invocation when upnp service discovery response is received  

Classes

WifiP2pConfig A class representing a Wi-Fi P2p configuration for setting up a connection  
WifiP2pDevice A class representing a Wi-Fi p2p device Note that the operations are not thread safe  
WifiP2pDeviceList A class representing a Wi-Fi P2p device list. 
WifiP2pGroup A class representing a Wi-Fi P2p group. 
WifiP2pInfo A class representing connection information about a Wi-Fi p2p group  
WifiP2pManager This class provides the API for managing Wi-Fi peer-to-peer connectivity. 
WifiP2pManager.Channel A channel that connects the application to the Wifi p2p framework. 
This site uses cookies to store your preferences for site-specific language and display options.

Hooray!

This class requires API level or higher

This doc is hidden because your selected API level for the documentation is . You can change the documentation API level with the selector above the left navigation.

For more information about specifying the API level your app requires, read Supporting Different Platform Versions.

Take a one-minute survey?
Help us improve Android tools and documentation.