【发布时间】：2017-12-18 23:22:06
【问题描述】：
我一直在尝试让 Multipeer 连接在 SWIFT 4 中工作，但我无法查看 MCBrowserViewController，我是 swift 新手，谁能帮忙？我也打算做到这一点，https://www.hackingwithswift.com/example-code/system/how-to-create-a-peer-to-peer-network-using-the-multipeer-connectivity-framework 所以我的目标是通过编程方式建立点对点连接。
这是我的代码：
import UIKit
import PlaygroundSupport
import MultipeerConnectivity
var peerID: MCPeerID!
var mcSession: MCSession!
var mcAdvertiserAssistant: MCAdvertiserAssistant!
var browser: MCNearbyServiceBrowser!
var foundPeers = [MCPeerID]()
class viewcontroller: UIViewController {
override func viewDidLoad() {
peerID = MCPeerID(displayName: UIDevice.current.name)
mcSession = MCSession(peer: peerID, securityIdentity: nil, encryptionPreference: .none)
mcSession.delegate.self
class ViewController: UIViewController, MCSessionDelegate, MCBrowserViewControllerDelegate {
let session = MCSession(peer: peerID,
securityIdentity: nil,
encryptionPreference: .none)
func session(_ session: MCSession, peer peerID: MCPeerID, didChange state: MCSessionState) {
switch state {
case MCSessionState.connected:
print("Connected: \(peerID.displayName)")
case MCSessionState.connecting:
print("Connecting: \(peerID.displayName)")
case MCSessionState.notConnected:
print("Not Connected: \(peerID.displayName)")
}
}
func browser(browser: MCNearbyServiceBrowser!, foundPeer peerID: MCPeerID!, withDiscoveryInfo info: [NSObject : AnyObject]!) {
foundPeers.append(peerID)
print(browser)
}
func session(_ session: MCSession, didReceive data: Data, fromPeer peerID: MCPeerID) {
if let image = UIImage(data: data) {
DispatchQueue.main.async { [unowned self] in
print("image recieved")
}
}
}
func sendImage(img: UIImage) {
if mcSession.connectedPeers.count > 0 {
if let imageData = UIImagePNGRepresentation(img) {
do {
try mcSession.send(imageData, toPeers: mcSession.connectedPeers, with: .reliable)
} catch let error as NSError {
let ac = UIAlertController(title: "Send error", message: error.localizedDescription, preferredStyle: .alert)
ac.addAction(UIAlertAction(title: "OK", style: .default))
present(ac, animated: true)
}
}
}
}
func session(_ session: MCSession, didReceive stream: InputStream, withName streamName: String, fromPeer peerID: MCPeerID) {
}
func session(_ session: MCSession, didStartReceivingResourceWithName resourceName: String, fromPeer peerID: MCPeerID, with progress: Progress) {
}
func session(_ session: MCSession, didFinishReceivingResourceWithName resourceName: String, fromPeer peerID: MCPeerID, at localURL: URL?, withError error: Error?) {
}
func browserViewControllerDidFinish(_ browserViewController: MCBrowserViewController) {
dismiss(animated: true)
}
func browserViewControllerWasCancelled(_ browserViewController: MCBrowserViewController) {
dismiss(animated: true)
}
func startHosting(action: UIAlertAction!) {
mcAdvertiserAssistant = MCAdvertiserAssistant(serviceType: "hws-ridleyn", discoveryInfo: nil, session: mcSession)
mcAdvertiserAssistant.start()
}
func joinSession(action: UIAlertAction!) {
let mcBrowser = MCBrowserViewController(serviceType: "hws-ridleyn", session: mcSession)
mcBrowser.delegate = self
present(mcBrowser, animated: true)
}
let vc = UIToolbar(frame: CGRect(x: 100, y: 100, width: 200, height: 200))
// your view controller here
}
let vcc = ViewController()
vcc.startHosting(action: nil)
ViewController.startHosting(vcc)
}
}
PlaygroundPage.current
func presentViewControllerAsSheet(_ viewController: MCBrowserViewController) {
}
【问题讨论】：
-
表是什么意思
-
我的意思是 MCBrowserViewController。我看不到。
-
我一直在看这个页面developer.apple.com/documentation/multipeerconnectivity/…但我不太明白，
-
我已经给出了答案试试看你是否得到了预期的结果。
标签： ios swift swift4 multipeer-connectivity