问题描述
我正在尝试将我的应用移植到iOS5。我通过CFSockets使用TCP连接到服务器。我现在的问题是从CFReadStreamRef到NSInputStream的转换（强制转换）（与write相同）。使用iOS4，我可以使用免费桥接，但iOS5的自动引用计数不再可能。这就是我得到的：
I am trying to port my app to iOS5. I am using a TCP connection to a server via CFSockets. My problem now is the conversion (cast) from CFReadStreamRef to NSInputStream (same with write). With iOS4 I could use the toll-free bridging, but with automatic reference counting of iOS5 this isn't possible anymore. This is what I get:
error: Automatic Reference Counting Issue: Cast to 'NSInputStream *' of a non-Objective-C to an Objective-C pointer is disallowed with Automatic Reference Counting
代码：
CFReadStreamRef readStream;
CFWriteStreamRef writeStream;
CFStringRef strRef = CFStringCreateWithCString(NULL,
[urlStr UTF8String],
NSUTF8StringEncoding);
CFStreamCreatePairWithSocketToHost(NULL,
strRef,
4444,
&readStream,
&writeStream);
NSInputStream *iStream = (NSInputStream *)readStream;
NSOutputStream *oStream = (NSOutputStream *)writeStream;
还有另一种方法可以将套接字输出/输入NSStream吗？
感谢您的任何提示！
Is there another way to pipe the socket out/input into an NSStream?Thanks for any hint!
推荐答案
管理免费电话桥接非常明确地指出您应该使用以下内容：
Managing Toll-Free Bridging states very clearly that you should use something like this:
NSInputStream *iStream = objc_unretainedObject(readStream);
这篇关于将CFReadStreamRef转换/转换为NSInputStream（iOS5）的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！