我尝试创建一个与此tutorial类似的聊天应用。
我现在遇到的问题是教程是用Swift 1编写的，但是我在Swift 2编写代码。
因此，我的屏幕上出现错误，这些错误未在教程文档中提及。 有两个委托错误，
＆＃34; MPCManager不符合x-delegate和y-delegate＆＃34;。
我该怎么做才能解决这个问题？
MPCManager类的代码：
//
// MPCManager.swift
// MPCRevisited
//
// Created by Maximilian BIEGEL on 22/04/16.
// Copyright © 2016 Appcoda. All rights reserved.
//
import UIKit
import MultipeerConnectivity
protocol MPCManagerDelegate {
func foundPeer()
func lostPeer()
func invitationWasReceived(fromPeer: String)
func connectedWithPeer(peerID: MCPeerID)
}
class MPCManager: NSObject, MCSessionDelegate, MCNearbyServiceBrowserDelegate, MCNearbyServiceAdvertiserDelegate {
var session: MCSession!
var peer: MCPeerID!
var browser: MCNearbyServiceBrowser!
var advertiser: MCNearbyServiceAdvertiser!
var foundPeers = [MCPeerID]()
var invitationHandler: ((Bool, MCSession!)->Void)!
var delegate: MPCManagerDelegate?
override init() {
super.init()
peer = MCPeerID(displayName: UIDevice.currentDevice().name)
browser = MCNearbyServiceBrowser(peer: peer, serviceType: "chat-mpc")
browser.delegate = self
advertiser = MCNearbyServiceAdvertiser(peer: peer, discoveryInfo: nil, serviceType: "chat-mpc")
advertiser.delegate = self
}
func browser(browser: MCNearbyServiceBrowser!, foundPeer peerID: MCPeerID!, withDiscoveryInfo info: [NSObject : AnyObject]!) {
foundPeers.append(peerID)
delegate?.foundPeer()
}
func browser(browser: MCNearbyServiceBrowser, lostPeer peerID: MCPeerID) {
for (index, aPeer) in foundPeers.enumerate() {
if aPeer == peerID {
foundPeers.removeAtIndex(index)
break
}
}
delegate?.lostPeer()
}
func browser(browser: MCNearbyServiceBrowser, didNotStartBrowsingForPeers error: NSError) {
print(error.localizedDescription)
}
func advertiser(advertiser: MCNearbyServiceAdvertiser!, didReceiveInvitationFromPeer peerID: MCPeerID!, withContext context: NSData!, invitationHandler: ((Bool, MCSession!) -> Void)!) {
self.invitationHandler = invitationHandler
delegate?.invitationWasReceived(peerID.displayName)
}
func advertiser(advertiser: MCNearbyServiceAdvertiser, didNotStartAdvertisingPeer error: NSError) {
print(error.localizedDescription)
}
func session(session: MCSession, peer peerID: MCPeerID, didChangeState state: MCSessionState) {
switch state {
case MCSessionState.Connected:
print("Connected to session: \(session)")
delegate?.connectedWithPeer(peerID)
case MCSessionState.Connecting:
print("Connecting to session: \(session)")
default:
print("Did not connect to session: \(session)")
}
}
func sendData(dictionaryWithData dictionary: Dictionary<String, String>, toPeer targetPeer: MCPeerID) -> Bool {
let dataToSend = NSKeyedArchiver.archivedDataWithRootObject(dictionary)
let peersArray = NSArray(object: targetPeer)
var error: NSError?
/*
if !session.sendData(dataToSend, toPeers: peersArray, withMode: MCSessionSendDataMode.Reliable, error: &error) {
print(error?.localizedDescription)
return false
}
*/
return true
}
func session(session: MCSession, didReceiveData data: NSData, fromPeer peerID: MCPeerID) {
let dictionary: [String: AnyObject] = ["data": data, "fromPeer": peerID]
NSNotificationCenter.defaultCenter().postNotificationName("receivedMPCDataNotification", object: dictionary)
}
func session(session: MCSession, didStartReceivingResourceWithName resourceName: String, fromPeer peerID: MCPeerID, withProgress progress: NSProgress) { }
func session(session: MCSession, didFinishReceivingResourceWithName resourceName: String, fromPeer peerID: MCPeerID, atURL localURL: NSURL, withError error: NSError?) { }
func session(session: MCSession, didReceiveStream stream: NSInputStream, withName streamName: String, fromPeer peerID: MCPeerID) { }
}