iMessage 气泡调用 Web 服务冻结视图答案

【问题标题】：iMessage bubble calling web service freze the viewiMessage 气泡调用 Web 服务冻结视图
【发布时间】：2016-08-05 05:26:45
【问题描述】：

我正在使用 iMessage 气泡来创建正常工作的聊天视图

https://github.com/kerrygrover/iMessageBubble

当我在我的内部方法中调用我的网络服务时

- (IBAction)sendMessage:(id)sender

这是我的网络方法调用函数，它给出了结果输出成功并将我的聊天发送到服务器，但我的视图冻结了。

 NSError *errorReturned = nil;
    NSString *urlString = @"https://url/methodname”;
    NSURL *url = [NSURL URLWithString:urlString];
    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
    [request setHTTPMethod: @"POST"];
    [request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
    NSMutableDictionary *dict = [NSMutableDictionary dictionary];
    [dict setObject:employeeId forKey:@"employeeId"];
    [dict setObject:employeename forKey:@"employeename"];
      NSLog(@"dic=%@",dict);
    NSData *jsonData = [NSJSONSerialization dataWithJSONObject:dict options:kNilOptions     error:&errorReturned];
    [request setValue:[NSString stringWithFormat:@"%lu", (unsigned long)[jsonData length]] forHTTPHeaderField:@"Content-Length"];
    [request setHTTPBody: jsonData];

    NSURLResponse *theResponse =[[NSURLResponse alloc]init];
    NSData *data = [NSURLConnection sendSynchronousRequest:request returningResponse:&theResponse error:&errorReturned];


    if (errorReturned)
    {
        //...handle the error

    }
    else
    {
        NSString *responseString = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
        NSLog(@"%@", responseString);

        //...do something with the returned value
    }
}

【问题讨论】：

标签： objective-c iphone xcode ios8

【解决方案1】：

请创建一个新队列，不要在主队列上运行此代码。您正在主队列上运行代码请使用此

 dispatch_queue_t myQueue = dispatch_queue_create("myQueue", NULL);

        // execute a task on that queue asynchronously
        dispatch_async(myQueue, ^{
    NSError *errorReturned = nil;
        NSString *urlString = @"https://url/methodname”;
        NSURL *url = [NSURL URLWithString:urlString];
        NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
        [request setHTTPMethod: @"POST"];
        [request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
        NSMutableDictionary *dict = [NSMutableDictionary dictionary];
        [dict setObject:employeeId forKey:@"employeeId"];
        [dict setObject:employeename forKey:@"employeename"];
          NSLog(@"dic=%@",dict);
        NSData *jsonData = [NSJSONSerialization dataWithJSONObject:dict options:kNilOptions     error:&errorReturned];
        [request setValue:[NSString stringWithFormat:@"%lu", (unsigned long)[jsonData length]] forHTTPHeaderField:@"Content-Length"];
        [request setHTTPBody: jsonData];

        NSURLResponse *theResponse =[[NSURLResponse alloc]init];
        NSData *data = [NSURLConnection sendSynchronousRequest:request returningResponse:&theResponse error:&errorReturned];


        if (errorReturned)
        {
            //...handle the error

        }
        else
        {
            NSString *responseString = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
            NSLog(@"%@", responseString);

            //...do something with the returned value
        }

        });

【讨论】：