objective-c - AFNetworking - 保存下载的文件

Question

我正在使用 AFNetworking 并且可以成功下载文件。

下载结束时，它并没有出现在我设置的目录中。

我进行了一些搜索，并在建议我使用的 SO 上遇到了一些问题:

[_operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {

但这会带来错误，据我所知，他们的文档中并未提及。

错误是:

/Users/Jeff/Documents/Dropbox-01/Dropbox/Xcode Projects/Try Outs - JEFF/testDownload/testDownload/JWKDownloadViewController.m:177:10: No visible @interface for 'AFURLConnectionOperation' declares the selector 'setCompletionBlockWithSuccess:failure:'

是否有我需要使用的更新线路？？？

Answer 1

    NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:@"..."]];
AFHTTPRequestOperation *operation = [[[AFHTTPRequestOperation alloc] initWithRequest:request] autorelease];

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *path = [[paths objectAtIndex:0] stringByAppendingPathComponent:@"filename"];
operation.outputStream = [NSOutputStream outputStreamToFileAtPath:path append:NO];

[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
    NSLog(@"Successfully downloaded file to %@", path);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
    NSLog(@"Error: %@", error);
}];

[operation start];