Ios 信号机回拨前的UI挂起

Ios 信号机回拨前的UI挂起,ios,objective-c,signalr,signalr-hub,Ios,Objective C,Signalr,Signalr Hub,我使用信号器发送数据这里是我发送数据的代码 manager = [AFHTTPRequestOperationManager manager]; manager.responseSerializer = [AFJSONResponseSerializer serializer]; manager.responseSerializer.acceptableContentTypes = [NSSet setWithObject:

我使用信号器发送数据这里是我发送数据的代码

            manager = [AFHTTPRequestOperationManager manager];
            manager.responseSerializer = [AFJSONResponseSerializer serializer];
            manager.responseSerializer.acceptableContentTypes = [NSSet setWithObject:@"application/json"];
            manager.requestSerializer = [AFJSONRequestSerializer serializer];
            [manager.requestSerializer setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];

            setUrl = [NSString stringWithFormat:@"%@%@",[UtilHelper sharedManager].WebServiceURL,@"Save"];
            NSDictionary *parameters = [[NSDictionary alloc]initWithObjectsAndKeys:dicArray,@"products", nil];

            __block NSMutableArray* json;
            json = [[NSMutableArray alloc]init];
            [manager POST:setUrl parameters:parameters success:^(AFHTTPRequestOperation *operation, id responseObject) {

                NSError *writeError = nil;
                NSData *jsonData = [NSJSONSerialization dataWithJSONObject:responseObject options:NSJSONWritingPrettyPrinted error:&writeError];
                NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:jsonData
                                                                    options:NSJSONReadingMutableContainers
                                                                      error:&writeError];
                if ([[dic valueForKey:@"StatusMsg"] isEqualToString:@"Success"]) {
                    //  save To S3 Bucket
                    [self sendPicture:[NSString stringWithFormat:@"%@",strProductId] : strPackageId];
                    [[results objectAtIndex:i] setValue:[NSNumber numberWithBool:YES] forKey:@"productsync"];
                    [[results objectAtIndex:i] setValue:[NSNumber numberWithBool:YES] forKey:@"editflag"];
                    [context save:nil];

                }
            }
                  failure:^(AFHTTPRequestOperation *operation, NSError *error) {

                  }];
现在我在
AppDelegate

[hubConnection setReceived:^(NSString *message) {
    NSLog(@"%@",message);

    });
当setReceived调用my UI hand时,这里是我的代码,我将显示我的
UIViewController
,并挂起UI init

-(void)handlePlusOption{

    __weak __typeof(&*self)weakSelf = self;

    dispatch_async( dispatch_get_main_queue(), ^{
        __strong __typeof(&*weakSelf)strongSelf = weakSelf;

    strongSelf.addProductVc = [[AddProductVC alloc] initWithNibName:addProductVcIdentifier bundle:nil];
    strongSelf.nav = [[UINavigationController alloc] initWithRootViewController:strongSelf.addProductVc];
    strongSelf.nav.modalPresentationStyle = UIModalPresentationFormSheet;
    strongSelf.nav.modalTransitionStyle=UIModalTransitionStyleCoverVertical;
    strongSelf.nav.modalPresentationCapturesStatusBarAppearance = NO; // To hide status bar, doest work with UIModalPresentationPageSheet style
        [self.navigationController presentViewController:strongSelf.nav animated:YES completion:NULL];
    });
}
为什么UI在
setReceived
之前挂起

尝试将setReceived代码块放入此块中

尝试将setReceived代码块放入此块中


我已经尝试过了,在调用setReceived之前,我的UI是挂起的。在下面的主线程中尝试放置setReceived块。这可能会起作用,或者如果您正在发送json数据,您可以使用另一种方法使用sbjson解析器库发送数据。不,还是一样的。我得到了键值作为回应,我的数据并没有那么大,只有6个键值对。这可能是因为发送数据的服务器端吗?@bhadresh我没听懂你的意思..你只是想向只有6个键值对的服务器发送json数据吗?好的,用下面的链接改变你的方法。。我已经尝试过了,在调用setReceived之前,我的UI是挂起的。在下面的主线程中尝试放置setReceived块。这可能会起作用,或者如果您正在发送json数据,您可以使用另一种方法使用sbjson解析器库发送数据。不,还是一样的。我得到了键值作为回应,我的数据并没有那么大,只有6个键值对。这可能是因为发送数据的服务器端吗?@bhadresh我没听懂你的意思..你只是想向只有6个键值对的服务器发送json数据吗?好的,用下面的链接改变你的方法。。
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
    // time-consuming task
    [hubConnection setReceived:^(NSString *message) {
         NSLog(@"%@",message);
    }];
    dispatch_async(dispatch_get_main_queue(), ^{
        // run in main thread 
    });

});