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PeerConnectivity

Platform: iOS 8+ Language: Swift 3 Carthage compatible Cocoapods compatible Docs License: MIT

A functional wrapper for the MultipeerConnectivity framework.

PeerConnectivity is meant to have a lightweight easy to use syntax, be extensible and flexible, and handle the heavy lifting and edge cases of the MultipeerConnectivity framework quietly in the background.

Please open an issue or submit a pull request if you have any suggestions!

🔌 Blog post https://goo.gl/HJcMbE

Installation

Cocoapods

The easiest way to get started is to use CocoaPods. Just add the following line to your Podfile:

pod 'PeerConnectivity', '~> 0.5.4'

Carthage

github "rchatham/PeerConnectivity"

Creating/Stopping/Starting

var pcm = PeerConnectionManager(serviceType: "local")

// Start
pcm.start()

// Stop
//  - You should always stop the connection manager 
//    before attempting to create a new one
pcm.stop()

// Can join chatrooms using PeerConnectionType.Automatic, .InviteOnly, and .Custom
//  - .Automatic : automatically searches and joins other devices with the same service type
//  - .InviteOnly : provides a browserViewController and invite alert controllers
//  - .Custom : no default behavior is implemented

// The manager can be initialized with a contructed peer representing the local user
// with a custom displayName

pcm = PeerConnectionManager(serviceType: "local", connectionType: .Automatic, displayName: "I_AM_KING")

// Start again at any time
pcm.start() {
    // Do something when finished starting the session
}

Sending Events to Peers

let event: [String: Any] = [
    "EventKey" : Date()
]

// Sends to all connected peers
pcm.sendEvent(event)


// Use this to access the connectedPeers
let connectedPeers: [Peer] = pcm.connectedPeers

// Events can be sent to specific peers
if let somePeerThatIAmConnectedTo = connectedPeers.first {
   pcm.sendEvent(event, toPeers: [somePeerThatIAmConnectedTo])
}

Listening for Events

// Listen to an event
pcm.observeEventListenerForKey("someEvent") { (eventInfo, peer) in
    
    print("Received some event \(eventInfo) from \(peer.displayName)")
    guard let date = eventInfo["eventKey"] as? Date else { return }
    print(date)
    
}

// Stop listening to an event
pcm.removeListenerForKey("SomeEvent")

Acknowledgments

Icon from the Noun Project.

Helpful links