我创建了一个UIImageView
允许异步加载图像的类别:
@implementation UIImageView (ImageLoader)
- (void) asyncLoadImageIntoView:(NSURL *)imageURL withLoadingIndicator:(BOOL)isLoadingIndicator {
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:imageURL cachePolicy:NSURLRequestReloadIgnoringLocalCacheData timeoutInterval:60];
(void)[[NSURLConnection alloc] initWithRequest:request delegate:self];
}
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
// responseData = [[NSMutableData alloc] init];
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
NSLog(@"didReceiveData %@", data);
(void)[self.image initWithData:data];
}
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
//[textView setString:@"Unable to fetch data"];
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
NSLog(@"Succeeded! Received image data");
}
@end
我的问题是,即使connection:didReceiveData:
调用了该方法并将数据打印到控制台,[self.image initWithData:data]
似乎也没有将图像加载到视图中。这里有什么问题?