已弃用的NSURLConnection方法，还有其他选择吗？

Question

我正在设置一个NSURLConnection来访问远程服务器：

NSURL *url = [[NSURL alloc] initWithString:projectURL];
NSURLRequest *request = [NSURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:60];
NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:request delegate:self];

使用以下代理方法：

- (void)connection:(NSURLConnection *)connection didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge

- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response

- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data

- (void)connectionDidFinishLoading:(NSURLConnection *)connection

- (NSCachedURLResponse *)connection:(NSURLConnection *)connection willCacheResponse:(NSCachedURLResponse *)cachedResponse

所有这些方法都说“在iOS 2.0至iOS 4.3中可用”。我的问题应该是针对当前的iOS5做另一种方式吗？我需要异步传输，需要通过NSURLCredential进行UID / PWD身份验证。

编辑：

因此，如果我在我的标题中采用协议<NSURLConnectionDelegate>并使用上面的委托方法，我会以正确的方式执行此操作吗？

Answer 1

对于iOS 5，看起来您可以利用新的NSURLConnectionDelegate protocol（为您链接的文档）。

And here's a related (or maybe even duplicate?) question that explains even better