ipv6的多人连接问题没有收到邀请
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【中文标题】ipv6的多人连接问题没有收到邀请【英文标题】：Multipeer Connection issue with ipv6 don't get an invitation 【发布时间】：2016-12-12 09:16:15 【问题描述】：我的应用程序被 Apple 拒绝，因为它无法通过连接到 IPv6 网络的 Wi-Fi 连接到运行 ios 10.1.1 的其他设备。 当我点击连接时，应用程序会继续搜索受邀者，并且不会产生进一步的用户操作。 我使用多点连接，我从未测试过我的应用程序连接到 IPv6（这是我的第一个版本）。但该应用程序运行良好，无需任何连接或连接到 IPv4 网络。
我不知道为什么应用程序使用 IPv4 运行并连接良好，并且如果 iPad 连接到 IPv6 网络，则无法连接到对等体。
所以我的问题：是否可以通过 IPv6 使用多点连接，以便 Apple 可以批准该应用程序，或者我应该如何处理这个问题？
这是我的代码，可能有问题。
@interface ConnectionManageriOS7 () <MCSessionDelegate, MCBrowserViewControllerDelegate>
UILocalNotification *_expireNotification;
UIBackgroundTaskIdentifier _taskId;
@property (nonatomic, strong) MCSession *session;
@property (nonatomic, strong) MCPeerID *localPeerID;
@property (nonatomic, strong) MCBrowserViewController *browserVC;
@property (nonatomic, strong) MCAdvertiserAssistant *advertiser;
@end
static ConnectionManageriOS7 *_manager = nil;
@implementation ConnectionManageriOS7
+ (ConnectionManageriOS7 *)connectManager
@synchronized([ConnectionManageriOS7 class])
if (_manager == nil)
_manager = [[ConnectionManageriOS7 alloc] init];
return _manager;
return nil;
- (id)init
self = [super init];
if (self)
[self setupSessionAndAdvertiser];
return self;
- (void)setupSessionAndAdvertiser
_localPeerID = [[MCPeerID alloc] initWithDisplayName:[UIDevice currentDevice].name];;
_session = [[MCSession alloc] initWithPeer:_localPeerID];
_session.delegate = self;
- (void)connectWithDelegate:(id)delegate
_delegate = delegate;
if (_session.connectedPeers.count)
if ([_delegate respondsToSelector:@selector(didConntectedWithManager:)])
[_delegate didConntectedWithManager:self];
else
if (_advertiser == nil)
_advertiser = [[MCAdvertiserAssistant alloc] initWithServiceType:VISUS_Service
discoveryInfo:nil
session:_session];
_isConnected = NO;
[_advertiser start];
if (_browserVC == nil)
_browserVC = [[MCBrowserViewController alloc] initWithServiceType:VISUS_Service session:_session];
_browserVC.delegate = self;
[(UIViewController *)delegate presentViewController:_browserVC
animated:YES completion:nil];
- (void)sendMessage:(NSString *)message
NSData *textData = [message dataUsingEncoding:NSASCIIStringEncoding];
NSLog(@"Send Data: %@", message);
NSError *error = nil;
[_session sendData:textData
toPeers:_session.connectedPeers
withMode:MCSessionSendDataReliable
error:&error];
if (error)
//
[self session:_session peer:nil didChangeState:MCSessionStateNotConnected];
NSLog(@"error %@", error.userInfo);
- (void)stopService
NSLog(@"Stop Service");
[_advertiser stop];
_advertiser = nil;
_browserVC = nil;
#pragma marks -
#pragma marks MCBrowserViewControllerDelegate
- (void) dismissBrowserVC
[_browserVC dismissViewControllerAnimated:YES completion:nil];
// Notifies the delegate, when the user taps the done button
- (void)browserViewControllerDidFinish:(MCBrowserViewController *)browserViewController
if ([_delegate respondsToSelector:@selector(didConntectedWithManager:)])
[_delegate didConntectedWithManager:self];
[self dismissBrowserVC];
// Notifies delegate that the user taps the cancel button.
- (void)browserViewControllerWasCancelled:(MCBrowserViewController *)browserViewController
if (_browserVC == nil)
[browserViewController dismissViewControllerAnimated:YES completion:nil];
else
[self dismissBrowserVC];
#pragma marks -
#pragma marks MCBrowserViewControllerDelegate
- (void)session:(MCSession *)session peer:(MCPeerID *)peerID didChangeState:(MCSessionState)state
if (state != MCSessionStateConnecting)
if (state == MCSessionStateConnected)
_isConnected = true;
if ([_delegate respondsToSelector:@selector(willConntectedWithManager:)])
[_delegate willConntectedWithManager:self];
else
_isConnected = false;
[self stopService];
if ([_delegate respondsToSelector:@selector(didDisconntectedWithManager:)])
[_delegate didDisconntectedWithManager:self];
// Received data from remote peer
- (void)session:(MCSession *)session didReceiveData:(NSData *)data fromPeer:(MCPeerID *)peerID
// Decode data back to NSString
NSString *message = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
NSLog(@"Receive Data: %@", message);
// append message to text box:
dispatch_async(dispatch_get_main_queue(), ^
if ([_delegate respondsToSelector:@selector(connectionManager:receivedString:)])
[_delegate connectionManager:self receivedString:message];
);
- (void)session:(MCSession *)session didFinishReceivingResourceWithName:(NSString *)resourceName fromPeer:(MCPeerID *)peerID atURL:(NSURL *)localURL withError:(NSError *)error
_isConnected = false;
[self stopService];
NSLog(@"----- Error ----- %@", error.localizedDescription);
// Received a byte stream from remote peer
- (void)session:(MCSession *)session didReceiveStream:(NSInputStream *)stream withName:(NSString *)streamName fromPeer:(MCPeerID *)peerID
// Start receiving a resource from remote peer
- (void)session:(MCSession *)session didStartReceivingResourceWithName:(NSString *)resourceName fromPeer:(MCPeerID *)peerID withProgress:(NSProgress *)progress
- (void) session:(MCSession *)session didReceiveCertificate:(NSArray *)certificate fromPeer:(MCPeerID *)peerID certificateHandler:(void (^)(BOOL accept))certificateHandler
certificateHandler(YES);
- (void) createExpireNotification
[self killExpireNotification];
if (_session.connectedPeers.count != 0) // if peers connected, setup kill switch
NSTimeInterval gracePeriod = 20.0f;
// create notification that will get the user back into the app when the background process time is about to expire
NSTimeInterval msgTime = UIApplication.sharedApplication.backgroundTimeRemaining - gracePeriod;
UILocalNotification* n = [[UILocalNotification alloc] init];
_expireNotification = n;
_expireNotification.fireDate = [NSDate dateWithTimeIntervalSinceNow:msgTime];
_expireNotification.alertBody = @"Bluetooth Connectivity is about to disconnect. Open the app to resume Test";
_expireNotification.soundName = UILocalNotificationDefaultSoundName;
_expireNotification.applicationIconBadgeNumber = 1;
[UIApplication.sharedApplication scheduleLocalNotification:_expireNotification];
- (void) killExpireNotification
if (_expireNotification != nil)
[UIApplication.sharedApplication cancelLocalNotification:_expireNotification];
_expireNotification = nil;
- (void)bacgroundHandling
_taskId = [[UIApplication sharedApplication] beginBackgroundTaskWithExpirationHandler:^
[self stopService];
[[UIApplication sharedApplication] endBackgroundTask:_taskId];
_taskId = UIBackgroundTaskInvalid;
];
[self createExpireNotification];
- (void)advertiser:(MCNearbyServiceAdvertiser *)advertiser didReceiveInvitationFromPeer:(MCPeerID *)peerID withContext:(NSData *)context invitationHandler:(void(^)(BOOL accept, MCSession *session))invitationHandler
// http://down.vcnc.co.kr/WWDC_2013/Video/708.pdf -- wwdc tutorial, this part is towards the end (p119)
// self.arrayInvitationHandler = [NSArray arrayWithObject:[invitationHandler copy]];
// ask the user
UIAlertView *alertView = [[UIAlertView alloc]
initWithTitle:peerID.displayName
message:@"Would like to create a session with you"
delegate:self
cancelButtonTitle:@"Decline" otherButtonTitles:@"Accept", nil];
[alertView show];
- (void) alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
// retrieve the invitationHandler and check whether the user accepted or declined the invitation...
BOOL accept = (buttonIndex != alertView.cancelButtonIndex) ? YES : NO;
// respond
if(accept)
// void (^invitationHandler)(BOOL, MCSession *) = [self.arrayInvitationHandler objectAtIndex:0];
// invitationHandler(accept, self.mySession);
else
NSLog(@"Session disallowed");
- (void)terminate
[self killExpireNotification];
[self stopService];
@end
【问题讨论】：
【参考方案1】：我已经解决了这个问题。对于每个有类似问题的人： 这不是 IPv6 的问题，而是如何使用 Multipeer 连接的问题。在我的案例中，我尝试使用 iPad 和模拟器进行 IPv6 连接。我用我的 Macbook 创建了一个nat64 network。以及模拟器和 iPad 从未见过彼此的原因是它们没有连接到同一个 wifi 网络。 解决方案： 只需测试两台 iPad 并将您的 mac 用作nat64 network 接入点。
【讨论】：
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