AFNetworking检查进度

Question

我正在使用AFNetworking框架下载文件并将其写入本地文件系统.

但由于文件可能很大,我想添加一个UIProgressView,但我似乎无法找到任何随着进度更新的方法.

我看到有人在谈论setProgressBlock,但我在文档中找不到任何相关信息:http://afnetworking.org/Documentation/Classes/AFHTTPRequestOperation.html

有没有一种方法可以做到这一点？我只是AFHTTPRequestOperation用来下载文件.

Answer 1

请参考以下代码.这是使用AFNetworking Code进行的一些文件下载.

NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://blahblah.com/blahblah.mp3"]];
AFURLConnectionOperation *operation =   [[AFHTTPRequestOperation alloc] initWithRequest:request];

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *filePath = [paths objectAtIndex:0] stringByAppendingPathComponent:@"blahblah.mp3"];
operation.outputStream = [NSOutputStream outputStreamToFileAtPath:filePath append:NO];
[operation setDownloadProgressBlock:^(NSInteger bytesRead, long long totalBytesRead, long long totalBytesExpectedToRead)
{
    myProgressView.progress = (float)totalBytesRead / totalBytesExpectedToRead;
}];
[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject)
{
    NSLog(@"downloadComplete!");
}];
[operation start];

Answer 2

该setDownloadProgressBlock方法的一部分AFURLConnectionOperation,从中AFHTTPRequestOperation继承-这就是为什么你没有看到它的AFHTTPRequestOperation文档.您所关注的文档如下:

http://cocoadocs.org/docsets/AFNetworking/1.3.1/Classes/AFURLConnectionOperation.html