我正在使用 Robbiehanson 的 XMPPFramework 开发聊天应用程序，当我的应用程序收到大量节时，应用程序的 UI 会卡住，这就是我制作流媒体的方式。

当框架尝试针对接收到的消息发送回执时，或者当流管理器尝试针对接收到的节发送确认时，应用程序的 UI 通常会卡住。

这就是我设置流的方式。

//流设置

if (!self.xmppStream || ![self.xmppStream isConnected]) {
    self.xmppStream = [[XMPPStream alloc] init];
     [self.xmppStream setHostName:kGetChatServerURLString];
    // [self.xmppStream setHostPort:kBPChatServerPort];

    [self.xmppStream setHostPort:kBPChatServerPort];
    [self.xmppStream setStartTLSPolicy:XMPPStreamStartTLSPolicyAllowed];
    self.xmppReconnect = [ [XMPPReconnect alloc] init];
    [self.xmppReconnect setAutoReconnect:YES];

    self.xmppRosterMemStorage = [[XMPPRosterMemoryStorage alloc] init];
    self.xmppRoster = [[XMPPRoster alloc] initWithRosterStorage:self.xmppRosterMemStorage dispatchQueue:dispatch_get_main_queue()];

    self.xmppRoster.autoAcceptKnownPresenceSubscriptionRequests = true;
    self.xmppRoster.autoFetchRoster = true;
    [self.xmppRoster activate:self.xmppStream];

    self.xmppMUC = [[XMPPMUC alloc] initWithDispatchQueue:_backgroundQueue];
    [self.xmppMUC activate:self.xmppStream];

    // To enable socket in the background.
    [self.xmppStream setEnableBackgroundingOnSocket:YES];

    // Moved the function to here from DidConnect to fix multiple delivery reports sending issue after reconnect.
    [self setupAutoSendDeliveryReceipts];

    XMPPMessageCarbons *xmppMessageCarbon  = [[XMPPMessageCarbons alloc] initWithDispatchQueue:_backgroundQueue];

    [xmppMessageCarbon activate:self.xmppStream];
    [xmppMessageCarbon setAutoEnableMessageCarbons:YES];

    //XEP-0191: Blocking Command
    self.xmppBlocking = [[XMPPBlocking alloc] initWithDispatchQueue:_backgroundQueue];
    [self.xmppBlocking activate:self.xmppStream];

    [self.xmppStream addDelegate:self delegateQueue:_backgroundQueue];
    [self.xmppReconnect addDelegate:self delegateQueue:_backgroundQueue];
    [self.xmppRoster addDelegate:self delegateQueue:dispatch_get_main_queue()];
    [self.xmppMUC addDelegate:self delegateQueue:_backgroundQueue];
    [self.xmppBlocking addDelegate:self delegateQueue:_backgroundQueue];

    [[BPCXMPPvCardStorageManager sharedInstance] activateWithStream:self.xmppStream];
    [[BPCChatRoomsManager sharedManager] activateWithStream:self.xmppStream];
}

//设置流管理器

- (void)setupStreamManagement {

if (kBPCTempEnableStreamManagement) {

    //Intialize with XMPPStreamManagementMemoryStorage
    XMPPStreamManagementMemoryStorage *xmppSMMS = [[XMPPStreamManagementMemoryStorage alloc] init];
    self.xmppStreamManagement = [[XMPPStreamManagement alloc] initWithStorage:xmppSMMS dispatchQueue:_backgroundQueue];

    //Activate with stream
    [self.xmppStreamManagement activate:self.xmppStream];
    self.xmppStreamManagement.autoResume = YES;
    [self.xmppStreamManagement enableStreamManagementWithResumption:YES maxTimeout:0];
    [self.xmppStreamManagement requestAck];
    [self.xmppStreamManagement sendAck];
    [self.xmppStreamManagement automaticallySendAcksAfterStanzaCount:1 orTimeout:0];
}
}

//启用自动消息传递

XMPPMessageDeliveryReceipts *xmppMessageDeliveryReceipts = [[XMPPMessageDeliveryReceipts alloc] initWithDispatchQueue:dispatch_queue_create("messageDeliverReceiptsQueue", DISPATCH_QUEUE_CONCURRENT)];
xmppMessageDeliveryReceipts.autoSendMessageDeliveryReceipts = YES;
xmppMessageDeliveryReceipts.autoSendMessageDeliveryRequests = YES;
[xmppMessageDeliveryReceipts activate:self.xmppStream];

我使用的后台队列是:

dispatch_queue_t backgroundQueue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_BACKGROUND, 0);

我该如何解决这个问题？

最佳答案

当您从框架回调并返回一些触发 UI 更新的数据时，您在哪个线程中执行？

需要是Thread 1，因为UIKit只能运行在主线程上。如果不是主线程，就得dispatch_async(dispatch_get_main_queue(), ^block());并从 block 中调用 UIKit(也称为所有 UI 调用)。我通过艰难的方式学会了这一点，是的，UI 变得非常缓慢并且表现得很奇怪。

关于ios - 收到大量节时，应用程序的 UI 会卡住，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/45831611/