XMPP 推送通知会导致消息出现问题（延迟 + 重复）。
我已经使用 XMPP + Ejabberd 成功创建了一个聊天应用程序。
没有推送通知：
单人聊天和群聊消息都运行良好。
使用推送通知：
有时一切正常。通知被触发并且消息被接收，没有任何延迟或重复。
有时不会触发通知（当应用程序在后台时），但可以完美接收消息。
有时会触发通知，但收到的消息有延迟和重复。
服务器端的所有内容都已正确配置。他们建议通过确保每个会话连接到一个持久性资源、使用空白保持连接稳定连接以及在连接丢失时重新绑定相同的资源来解决您的问题。
我有流管理、xmppStream.enableBackgroundingOnSocket 和应用程序提供启用 IP 语音服务后台模式。
当用户注销或应用程序终止时，我会拆除流并发送不可用的状态。
下面是我的 xmpp 流推送通知和连接/断开的代码。
我正在为此拔头发。如果你们有任何想法，请告诉我。
谢谢。
#pragma mark - Connect/Disconnect
- (BOOL)connect {
if (!_xmppStream) {
NSLog(@"Setting up Stream");
[self setupStream];
}
if (![_xmppStream isDisconnected]) {
return YES;
}
NSString *jabberID = [[NSUserDefaults standardUserDefaults] stringForKey:@"userID"];
NSString *myPassword = [[NSUserDefaults standardUserDefaults] stringForKey:@"userPassword"];
if (jabberID == nil || myPassword == nil) {
return NO;
}
[_xmppStream setMyJID:[XMPPJID jidWithString:jabberID]];
_password = myPassword;
NSError *error = nil;
if (![_xmppStream connectWithTimeout:XMPPStreamTimeoutNone error:&error]){
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Error" message:[NSString stringWithFormat:@"Can't connect to server! %@", [error localizedDescription]] delegate:nil cancelButtonTitle:@"Ok" otherButtonTitles:nil];
[alert show];
return NO;
}
return YES;
}
- (void)disconnect {
[self goOffline];
[self teardownStream];
}
- (void)xmppStreamDidAuthenticate:(XMPPStream *)sender {
[self goOnline];
//Stream Management
NSXMLElement *enable = [NSXMLElement elementWithName:@"enable" xmlns:@"urn:xmpp:sm:3"];
[enable addAttributeWithName:@"resume" stringValue:@"true"];
[_xsm.xmppStream sendElement:enable];
//Push
[self configurePushNotifications];
//
}
-(void)configurePushNotifications{
NSString *jabberID = [[NSUserDefaults standardUserDefaults] stringForKey:@"userID"];
NSXMLElement *iq = [NSXMLElement elementWithName:@"iq"];
[iq addAttributeWithName:@"type" stringValue:@"set"];
[iq addAttributeWithName:@"id" stringValue:idString];
NSXMLElement *push = [NSXMLElement elementWithName:@"push" xmlns:@"p1:push"];
NSXMLElement *keepalive = [NSXMLElement elementWithName:@"keepalive"];
[keepalive addAttributeWithName:@"max" integerValue:30];
NSXMLElement *session = [NSXMLElement elementWithName:@"session"];
[session addAttributeWithName:@"duration" integerValue:60];
NSXMLElement *body = [NSXMLElement elementWithName:@"body"];
[body addAttributeWithName:@"send" stringValue:@"all"];
[body addAttributeWithName:@"groupchat" stringValue:@"true"];
[body addAttributeWithName:@"from" stringValue:jabberID];
NSXMLElement *status = [NSXMLElement elementWithName:@"status"];
[status addAttributeWithName:@"type" stringValue:[NSString stringWithFormat:@"New message from %@",jabberID]];
NSXMLElement *offline = [NSXMLElement elementWithName:@"offline" stringValue:@"true"];
[push addChild:keepalive];
[push addChild:session];
[push addChild:body];
[push addChild:status];
[push addChild:offline];
NSXMLElement *notification = [NSXMLElement elementWithName:@"notification"];
[notification addChild:[NSXMLElement elementWithName:@"type" stringValue:@"applepush"]];
[notification addChild:[NSXMLElement elementWithName:@"id" stringValue:_userDeviceToken]];
[push addChild:notification];
NSXMLElement *appid = [NSXMLElement elementWithName:@"appid" stringValue:@"appid"];
[push addChild:appid];
[iq addChild:push];
[[self xmppStream] sendElement:iq];
}
- (void)setupStream {
_xmppStream = [[XMPPStream alloc] init];
_xmppStream.hostName = kHostName;
_xmppStream.hostPort = kHostPort;
_xmppStream.enableBackgroundingOnSocket = YES;
[_xmppStream addDelegate:self delegateQueue:dispatch_get_main_queue()];
//XMPPReconnect
_xmppReconnect = [[XMPPReconnect alloc] init];
[_xmppReconnect activate:_xmppStream];
//Stream Management
_xsm = [[XMPPStreamManagement alloc] init];
[_xsm enableStreamManagementWithResumption:YES maxTimeout:0];
[_xsm activate:_xmppStream];
//Last Activity
_xmppLastActivity = [[XMPPLastActivity alloc] initWithDispatchQueue:dispatch_get_main_queue()];
[_xmppLastActivity addDelegate:self delegateQueue:dispatch_get_main_queue()];
[_xmppLastActivity activate:_xmppStream];
}
- (void)goOnline {
XMPPPresence *presence = [XMPPPresence presence];
[[self xmppStream] sendElement:presence];
}
- (void)goOffline {
XMPPPresence *presence = [XMPPPresence presenceWithType:@"unavailable"];
[[self xmppStream] sendElement:presence];
}
- (void)teardownStream {
[_xmppStream disconnect];
[_xmppStream removeDelegate:self];
[_xmppReconnect removeDelegate:self];
[_xmppLastActivity removeDelegate:self];
[_xmppReconnect deactivate];
_xmppStream = nil;
_xmppReconnect = nil;
_xmppLastActivity = nil;
}