I metodi delegati xmppstream non vengono chiamati sulla mia classe personalizzata

Question

Ho iniziato con xmppframework di recente, ma sono bloccato con un problema. Posso collegarmi al mio server sulla mia rete locale ma i metodi xmppstreamdelegate non vengono richiamati sulla mia dogana class, ma funziona perfettamente sulla classe appdelegate. Nessuno mi può aiutare su questo. Il delegato è supportato solo nella classe appdelegate?

Intestazione:

@interface XmppClass : NSObject<XMPPStreamDelegate>{ 
    XMPPStream *xmppStream; 
    Login * loginDetail; 
    BOOL allowSelfSignedCertificates; 
    BOOL allowSSLHostNameMismatch; 
} 
@property (nonatomic, strong, readonly) XMPPStream *xmppStream; 

@property (nonatomic, strong) Login *loginDetail; 
- (id)initWithLogin:(Login *) loginrefernce; 
- (BOOL)connect; 
- (void)disconnect; 
- (void)setupStream; 
@end 

Implementazione:

@implementation XmppClass 

@synthesize xmppStream; 
@synthesize loginDetail; 
- (id)initWithLogin:(Login *) loginrefernce 
{ 
    self = [super init]; 
    if (self) { 
     self.loginDetail=loginrefernce; 
     [DDLog addLogger:[DDTTYLogger sharedInstance]]; 
     [self setupStream]; 
     [self connect]; 
    } 
    return self; 
} 
- (void)setupStream 
{ 
NSAssert(xmppStream == nil, @"Method setupStream invoked multiple times"); 
// Setup xmpp stream 
// 
// The XMPPStream is the base class for all activity. 
// Everything else plugs into the xmppStream, such as modules/extensions and delegates. 

xmppStream = [[XMPPStream alloc] init]; 
#if !TARGET_IPHONE_SIMULATOR 
{ 
// Want xmpp to run in the background? 
// 
// P.S. - The simulator doesn't support backgrounding yet. 
//  When you try to set the associated property on the simulator, it simply fails. 
//  And when you background an app on the simulator, 
//  it just queues network traffic til the app is foregrounded again. 
//  We are patiently waiting for a fix from Apple. 
//  If you do enableBackgroundingOnSocket on the simulator, 
//  you will simply see an error message from the xmpp stack when it fails to set the property. 
xmppStream.enableBackgroundingOnSocket = YES; 
} 
#endif 

NSLog(@"setup stream"); 
[xmppStream addDelegate:self delegateQueue:dispatch_get_main_queue()]; 

[xmppStream setHostName:@"10.68.202.123"]; 
//[xmppStream setHostPort:8070]; 

allowSelfSignedCertificates = NO; 
allowSSLHostNameMismatch = NO; 

// You may need to alter these settings depending on the server you're connecting to 

} 

- (BOOL)connect 
{ 
    NSLog(@"connect"); 
    if (![xmppStream isDisconnected]) { 
     return YES; 
    } 


// 
// If you don't want to use the Settings view to set the JID, 
// uncomment the section below to hard code a JID and password. 
// 
// myJID = @"user@gmail.com/xmppframework"; 
// myPassword = @""; 
if (self.loginDetail.emailId == nil || self.loginDetail.password == nil) { 
    return NO; 
} 

[xmppStream setMyJID:[XMPPJID jidWithString:[self.loginDetail.emailId  stringByAppendingString:@"/pc"]]]; 


NSError *error = nil; 
if (![xmppStream connect:&error]) 
{ 

    NSLog(@"Error connecting: %@", error); 

    return NO; 
} 

return YES; 
} 

- (void)disconnect 
{ 
    [xmppStream disconnect]; 
} 
- (void)xmppStream:(XMPPStream *)sender socketDidConnect:(GCDAsyncSocket *)socket 
{ 
    DDLogVerbose(@"%@: %@", THIS_FILE, THIS_METHOD); 
} 

- (void)xmppStream:(XMPPStream *)sender willSecureWithSettings:(NSMutableDictionary *)settings 
{ 
    DDLogVerbose(@"%@: %@", THIS_FILE, THIS_METHOD); 
    NSLog(@"some security thing"); 
    if (allowSelfSignedCertificates) 
    { 
     [settings setObject:[NSNumber numberWithBool:YES] forKey:(NSString *)kCFStreamSSLAllowsAnyRoot]; 
    } 
    if (allowSSLHostNameMismatch) 
    { 
     [settings setObject:[NSNull null] forKey:(NSString *)kCFStreamSSLPeerName]; 
    } 
    else 
    { 
     // Google does things incorrectly (does not conform to RFC). 
     // Because so many people ask questions about this (assume xmpp framework is broken), 
     // I've explicitly added code that shows how other xmpp clients "do the right thing" 
     // when connecting to a google server (gmail, or google apps for domains). 
     NSString *expectedCertName = nil; 
     NSString *serverDomain = xmppStream.hostName; 
     NSString *virtualDomain = [xmppStream.myJID domain]; 
     if ([serverDomain isEqualToString:@"talk.google.com"]) 
     { 
      if ([virtualDomain isEqualToString:@"gmail.com"]) 
      { 
        expectedCertName = virtualDomain; 
      } 
      else 
      { 
        expectedCertName = serverDomain; 
      } 
     } 
     else if (serverDomain == nil) 
     { 
      expectedCertName = virtualDomain; 
     } 
     else 
     { 
      expectedCertName = serverDomain; 
     } 
     if (expectedCertName) 
     { 
      [settings setObject:expectedCertName forKey:(NSString *)kCFStreamSSLPeerName]; 
     } 
} 

}

- (void)xmppStreamDidSecure:(XMPPStream *)sender 
{ 
    DDLogVerbose(@"%@: %@", THIS_FILE, THIS_METHOD); 
} 

- (void)xmppStreamDidConnect:(XMPPStream *)sender 
{ 
    DDLogVerbose(@"%@: %@", THIS_FILE, THIS_METHOD); 
    NSLog(@"connected"); 
    NSError *error = nil; 
    if (![[self xmppStream] authenticateWithPassword:self.loginDetail.password error:&error]) 
    { 
      DDLogError(@"Error authenticating: %@", error); 
    } 
} 

- (void)xmppStreamDidAuthenticate:(XMPPStream *)sender 
{ 
    DDLogVerbose(@"%@: %@", THIS_FILE, THIS_METHOD); 
    NSLog(@"authenticated"); 

} 

- (void)xmppStream:(XMPPStream *)sender didNotAuthenticate:(NSXMLElement *)error 
{ 
    DDLogVerbose(@"%@: %@", THIS_FILE, THIS_METHOD); 
    NSLog(@"did not authenticate"); 
} 

- (BOOL)xmppStream:(XMPPStream *)sender didReceiveIQ:(XMPPIQ *)iq 
{ 
    DDLogVerbose(@"%@: %@", THIS_FILE, THIS_METHOD); 
    return NO; 
} 

- (void)xmppStream:(XMPPStream *)sender didReceiveMessage:(XMPPMessage *)message 
{ 
    DDLogVerbose(@"%@: %@", THIS_FILE, THIS_METHOD); 

    // A simple example of inbound message handling. 

} 

- (void)xmppStream:(XMPPStream *)sender didReceivePresence:(XMPPPresence *)presence 
{ 
    DDLogVerbose(@"%@: %@ - %@", THIS_FILE, THIS_METHOD, [presence fromStr]); 
} 

- (void)xmppStream:(XMPPStream *)sender didReceiveError:(id)error 
{ 
    DDLogVerbose(@"%@: %@", THIS_FILE, THIS_METHOD); 
} 

- (void)xmppStreamDidDisconnect:(XMPPStream *)sender withError:(NSError *)error 
{ 
    DDLogVerbose(@"%@: %@", THIS_FILE, THIS_METHOD); 
    NSLog(@"%@",error); 
} 
@end 

Answer 1

Molto probabilmente il problema è che l'istanza di classe, che è un delegato per la XMPPStream viene rilasciato prima il metodo delegato è chiamato su di esso. Rendilo più persistente rendendo questa classe una proprietà o una variabile di istanza di un'altra classe o utilizzando dispatch_once. Ad esempio,

Change

YourClass *instance = [[YourClass alloc] init]; 
instance.xmppStream = .... 

da

@property(nonatomic, strong) YourClass *instance; 
self.instance = [[YourClass alloc] init]; 
self.instance.xmppStream = .... 

Qui YourClass contiene XMPPStream ed è delegato per esso.

Ho scritto un grosso post sul blog su questo problema. Questa è una situazione abbastanza comune. http://blog.alwawee.com/2013/07/31/on-xmppframework-delegate-method-not-being-called/

Answer 2

è possibile utilizzare il multicast, sth come questo

[[self appDelegate].xmppStream addDelegate:self delegateQueue:dispatch_get_main_queue()]; 

Answer 3

ho avuto lo stesso problema ... questo mi ha aiutato. Spero che funzioni per te, basta apportare le seguenti modifiche al codice.

Static XmppClass *selfRef = nil; 
@implementation XmppClass 
@synthesize xmppStream; 
- (void)setupStream 
{ 
// Setup xmpp stream 
selfRef = [[XmppClass alloc] init]; 
xmppStream = [[XMPPStream alloc] init]; 
[xmppStream addDelegate:selfRef delegateQueue:dispatch_get_main_queue()];