伙计,被这个难住了。尝试用AFNetworking下载一个文件,我能做的最多的就是捕获downloadProgressBlock中的进度字节。我已经尝试了许多不同的AFNetworking分支,现在我又回到了最新的版本。看起来AFHTTPRequestOperation一度被修改为包括NSURLResponse,但在最新版本中这一点已经消失了。而且,根据下面的代码,永远不会调用"success“块。我得到一个下载字节的日志,然后调用^complete。成功和错误永远不会被调用。
任何关于这方面的指导都会很棒。我不知道数据返回到哪里,以及如何让它对其使用NSFileManager?我需要下载文件,而不是为图像写流,等等。
编辑:我还尝试通过覆盖文档中建议的- (void)connection:didReceiveData来捕获数据,但没有做任何事情。
// url为http://mydomain.com/somezip.zip
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:[NSString stringWithFormat:@"%@", url]]];
AFHTTPRequestOperation *operation = [AFHTTPRequestOperation HTTPRequestOperationWithRequest:request success:^(id object) {
NSLog(@"hey, some success!");
} failure:^(NSHTTPURLResponse *response, NSError *error) {
NSLog(@"%@", error);
}];
[operation setDownloadProgressBlock:^(NSInteger bytesRead, NSInteger totalBytesRead, NSInteger totalBytesExpectedToRead) {
// callback is sent in and works great. Just outputting to the console at the moment
SEL callme = NSSelectorFromString(callback);
[sender performSelectorOnMainThread:callme withObject:[NSNumber numberWithInt:bytesRead] waitUntilDone:NO];
}];
[operation setCompletionBlock:^{
NSLog(@"operation complete");
}];
NSOperationQueue *queue = [[[NSOperationQueue alloc] init] autorelease];
[queue addOperation:operation];
发布于 2012-06-26 20:05:49
您可以简单地使用AFNetworking中包含的这一特性,甚至可以将其保存到磁盘上-请注意operation.outputStream
NSMutableURLRequest* rq = [api requestWithMethod:@"GET" path:@"YOUR/URL/TO/FILE" parameters:nil];
AFHTTPRequestOperation *operation = [[[AFHTTPRequestOperation alloc] initWithRequest:rq] autorelease];
NSString* path=[@"/PATH/TO/APP" stringByAppendingPathComponent: imageNameToDisk];
operation.outputStream = [NSOutputStream outputStreamToFileAtPath:path append:NO];
[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
NSLog(@"SUCCCESSFULL IMG RETRIEVE to %@!",path)
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
// Deal with failure
}];
编辑:missed
[operation start];
编辑:...or if you use an AFHTTPClient * apiClient :
// [apiClient enqueueHTTPRequestOperation:operation];
https://stackoverflow.com/questions/8004808
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