我遇到了这个问题，我在堆栈溢出和其他地方浏览了很多帖子，但找不到解决方案。我也在主线程上运行它。代码如下。
@interface JsonViewController : UIViewController <UIActionSheetDelegate,UIWebViewDelegate,NSURLConnectionDelegate>
{
....
}
@implementation JsonViewController
- (void)viewDidLoad
{
[super viewDidLoad];
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://google.com"] cachePolicy:NSURLRequestReloadIgnoringLocalAndRemoteCacheData timeoutInterval:60];
rssFeedDetailViewConnection = [[NSURLConnection alloc] initWithRequest:request delegate:self];
NSLog(@"PRINTING RSS FEED %@", rssFeedDetailViewConnection);
[rssFeedDetailViewConnection scheduleInRunLoop:[NSRunLoop mainRunLoop]
forMode:NSDefaultRunLoopMode];
[rssFeedDetailViewConnection start];
}
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response {
NSLog(@"Hello");
responseData = [[NSMutableData alloc] init];
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {
NSLog(@"Hello");
[responseData appendData:data];
}
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error {
NSLog(@"Hello");
[responseData release];
[connection release];
// Show error message
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection {
NSLog(@"Hello");
// Use responseData
[responseData release];
[connection release];
}
任何帮助将不胜感激。我已经被这个问题困扰了两天了..
最佳答案
您不需要这些语句:
[rssFeedDetailViewConnection scheduleInRunLoop:[NSRunLoop mainRunLoop] forMode:NSDefaultRunLoopMode];
[rssFeedDetailViewConnection start];
因为您正在使用initWithRequest:delegate:。此调用已经开始加载数据。
如果删除这些特定语句会发生什么？
有关 NSURLConnection 的更多信息.
关于iphone - NSURLConnection 委托(delegate)方法没有被调用，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/12053330/