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我正在做类似的事情来下载文件。一切正常，而不是我想用来制作下载进度条的委托 didReceiveData：

    NSURL *URL = [NSURL URLWithString:path];
    RKRequest *downloadRequest = [RKRequest requestWithURL:URL];

    downloadRequest.delegate = self;
    downloadRequest.method = RKRequestMethodGET;
    [downloadRequest sendSynchronously];

之后，调用以下委托：

- (void)request:(RKRequest *)request didLoadResponse:(RKResponse *)response
{
    NSLog(@"TEST didLoadResponse");
}

但委托 didReceiveData 从未被调用：

- (void)request:(RKRequest *)request didReceiveData:(NSInteger)bytesReceived totalBytesReceived:(NSInteger)totalBytesReceived totalBytesExpectedToReceive:(NSInteger)totalBytesExpectedToReceive
{
    NSLog(@"TEST didReceiveData");
}

任何人的想法？我真的尝试了很多，我只是没有发现任何错误。可能它与我如何创建我的RKRequest？

编辑：如果我改变它，它的工作原理：

NSURL *URL = [NSURL URLWithString:path];

RKClient *client = [[RKClient alloc] initWithBaseURL:URL];
RKRequest *downloadRequest = [client get:@"" delegate:self];
[downloadRequest sendSynchronously];

奇怪的？

EDIT2：使用第二种解决方案，我遇到了一些线程问题，所以我想问题是我发送和同步请求会锁定线程，所以 didReceiveData 委托不会回来？

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