我正在制定一个方向（不知道它是否是正确的英文名称）app。您可以扫描Qr代码，然后将结果发送给您的老师。我使用Multipeer连接从学生电话和老师发送结果。我有一个UITableViewController，我想为另一个视图控制器创建一个数组（带有一个struct，2个值） - ＆gt; UIViewController中。而且存在问题。当我尝试＆＃34;发送＆＃34;它到另一个viewControler它没有达到最终的东西。我已经尝试了所有的东西（controlsGetShared是一次尝试）我可以，但它仍然无法工作...... :(
Struct看起来像这样
struct Control {
let name: String
let code: String
}
UITableViewController看起来像
import UIKit
class ControlViewController: UITableViewController {
var controlsGet = [Control] ()
var controlsGetShare = [Control] ()
var def = NSUserDefaults.standardUserDefaults()
var valueName: String = ""
var valueCode: String = ""
@IBAction func done(segue: UIStoryboardSegue) {
var scanVc = segue.sourceViewController as ScanViewController
valueName = scanVc.name
valueCode = scanVc.code
println("sendToSendFile \(valueName) \(valueCode)")
controlsGet.append(Control(name: valueName, code: valueCode))
//controlsGetShare.append(Control(name: valueName, code: valueCode))
println("\(self.controlsGet.count) shareArray \(self.controlsGetShare.count)")
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
controlsGetShare = controlsGet
println("preparaForSegueCount \(controlsGetShare.count)")
}
override func viewDidLoad() {
println("viewDidLoad")
tableView.reloadData()
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return self.controlsGet.count
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = self.tableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath) as UITableViewCell
//for index in controlsGet {
var control : Control
control = controlsGet[indexPath.row]
cell.textLabel.text = control.name
cell.detailTextLabel?.text = control.code
//}
return cell
}
override func tableView(tableView: UITableView, commitEditingStyle editingStyle: UITableViewCellEditingStyle, forRowAtIndexPath indexPath: NSIndexPath) {
if editingStyle == .Delete {
controlsGet.removeAtIndex(indexPath.row)
tableView.deleteRowsAtIndexPaths([indexPath], withRowAnimation: .Fade)
} else if editingStyle == .Insert {
// Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view
}
}
}
Ant发送UIViewControler
import UIKit
import MultipeerConnectivity
class SendFileViewController: UIViewController, MCBrowserViewControllerDelegate,
MCSessionDelegate {
let serviceType = "LCOC-Chat"
var controlsGetShare = [Control] ()
@IBAction func done(segue: UIStoryboardSegue) {
var controlVc = segue.sourceViewController as ControlViewController
println(controlVc.controlsGetShare.count)
controlsGetShare = controlVc.controlsGetShare
println(controlsGetShare.count)
}
var browser : MCBrowserViewController!
var assistant : MCAdvertiserAssistant!
var session : MCSession!
var peerID: MCPeerID!
@IBOutlet var chatView: UITextView!
@IBOutlet var messageField: UITextField!
override func viewDidLoad() {
super.viewDidLoad()
self.peerID = MCPeerID(displayName: UIDevice.currentDevice().name)
self.session = MCSession(peer: peerID)
self.session.delegate = self
// create the browser viewcontroller with a unique service name
self.browser = MCBrowserViewController(serviceType:serviceType,
session:self.session)
self.browser.delegate = self;
self.assistant = MCAdvertiserAssistant(serviceType:serviceType,
discoveryInfo:nil, session:self.session)
// tell the assistant to start advertising our fabulous chat
self.assistant.start()
}
@IBAction func sendChat(sender: UIButton) {
println("sendButton")
// Bundle up the text in the message field, and send it off to all
// connected peers
var error : NSError?
var message = ""
/*
var msg = message.dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: false)
self.session.sendData(msg, toPeers: self.session.connectedPeers, withMode: MCSessionSendDataMode.Unreliable, error: &error)
*/
println(self.controlsGetShare.count)/*
for index in controlsGetShare {
message = index.name
var msg = message.dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: false)
self.session.sendData(msg, toPeers: self.session.connectedPeers, withMode: MCSessionSendDataMode.Unreliable, error: &error)
if error != nil {
print("Error sending nameData: \(error?.localizedDescription)")
}
println("didSendDataA")
message = index.code
msg = message.dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: false)
self.session.sendData(msg, toPeers: self.session.connectedPeers, withMode: MCSessionSendDataMode.Unreliable, error: &error)
if error != nil {
print("Error sending codeData: \(error?.localizedDescription)")
}
println("didSendDataB")
}*/
}
@IBAction func showBrowser(sender: UIButton) {
// Show the browser view controller
self.presentViewController(self.browser, animated: true, completion: nil)
}
func browserViewControllerDidFinish(
browserViewController: MCBrowserViewController!) {
// Called when the browser view controller is dismissed (ie the Done
// button was tapped)
self.dismissViewControllerAnimated(true, completion: nil)
}
func browserViewControllerWasCancelled(
browserViewController: MCBrowserViewController!) {
// Called when the browser view controller is cancelled
self.dismissViewControllerAnimated(true, completion: nil)
}
func session(session: MCSession!, didReceiveData data: NSData!,
fromPeer peerID: MCPeerID!) {
// Called when a peer sends an NSData to us
// This needs to run on the main queue
dispatch_async(dispatch_get_main_queue()) {
var msg = NSString(data: data, encoding: NSUTF8StringEncoding)
//self.updateChat(msg, fromPeer: peerID)
}
}
// The following methods do nothing, but the MCSessionDelegate protocol
// requires that we implement them.
func session(session: MCSession!,
didStartReceivingResourceWithName resourceName: String!,
fromPeer peerID: MCPeerID!, withProgress progress: NSProgress!) {
// Called when a peer starts sending a file to us
}
func session(session: MCSession!,
didFinishReceivingResourceWithName resourceName: String!,
fromPeer peerID: MCPeerID!,
atURL localURL: NSURL!, withError error: NSError!) {
// Called when a file has finished transferring from another peer
}
func session(session: MCSession!, didReceiveStream stream: NSInputStream!,
withName streamName: String!, fromPeer peerID: MCPeerID!) {
// Called when a peer establishes a stream with us
}
func session(session: MCSession!, peer peerID: MCPeerID!,
didChangeState state: MCSessionState) {
// Called when a connected peer changes state (for example, goes offline)
}
}
大部分代码都来自我在互联网上找到的源代码，所以这就是所有评论的原因。谢谢 //安东