MCSession.NearbyConnectionDataForPeer Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Creates the necessary data for a manually-managed peer connection.
[Foundation.Export("nearbyConnectionDataForPeer:withCompletionHandler:")]
public virtual void NearbyConnectionDataForPeer (MultipeerConnectivity.MCPeerID peerID, MultipeerConnectivity.MCSessionNearbyConnectionDataForPeerCompletionHandler completionHandler);abstract member NearbyConnectionDataForPeer : MultipeerConnectivity.MCPeerID * MultipeerConnectivity.MCSessionNearbyConnectionDataForPeerCompletionHandler -> unit
override this.NearbyConnectionDataForPeer : MultipeerConnectivity.MCPeerID * MultipeerConnectivity.MCSessionNearbyConnectionDataForPeerCompletionHandler -> unitParameters
- peerID
- MCPeerID
Created from data serialized on a remote peer.
- completionHandler
- MCSessionNearbyConnectionDataForPeerCompletionHandler
The completion handler called after processing is complete.
- Attributes
Remarks
Application developers may use a non-Multipeer Connectivity discovery technique, such as Bonjour / NSNetService, and manually manage peer connection. However, the peerID used here and in ConnectPeer(MCPeerID, NSData) must originate from a NSKeyedArchiver serializing an MCPeerID on the remote peer. (This raises the question: if discovery and enough message-passing code to transmit the peerID is done by Bonjour, what's the advantage of using MPC for further communication? One answer might be the evolution of a legacy system, another answer might lie in the simpler message- and resource-passing of MPC.)
Once the application developer has the peerID, the rest of the code to connect a peer would be:
//User code: Perhaps using Bonjour or other discovery and messaging service
var peerID = DeserializedPeerID();
//Request connection data, with completionHandler lambda as continuation
session.NearbyConnectionDataForPeer(peerID, (connectionData, error) => {
if(error != null){
//Note: peerID is serialized version, connectionData is passed in to continuation
session.ConnectPeer(peerID, connectionData);
}else{
throw new Exception(error);
}
});