대리인 메서드는 요청의 해당 NSURLConnection에서 호출됩니다.
urlConnection = [[NSURLConnection alloc] initWithRequest:request delegate:self startImmediately:YES];
하면 다음 다음과 같이 다양한 콜백 완성 된 콜백을 포함 나타납니다
- (void)connectionDidFinishLoading:(NSURLConnection *)connection{}
다른 대리인 콜백은 다음과 같습니다
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data{
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response {
- (BOOL)connectionShouldUseCredentialStorage:(NSURLConnection *)connection{
- (void)connection:(NSURLConnection *)connection didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge {