iOS-下载视频 [英] iOS - Download Video

问题描述

我想从远程URL下载视频并将其保存到iPhone应用程序中的文件中。
我知道视频链接有效，因为我从AVPlayer，但是，我无法下载它。响应始终为（空）。

I'd like to download a video from a remote URL and save it to a file in an iPhone app. I know the video link works, since I have used it from AVPlayer, however, I am unable to download it. The response is always (null).

以下代码有什么问题？

    NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:someURLString]];
    AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];

    operation.outputStream = [NSOutputStream outputStreamToFileAtPath:someFilePath append:NO];

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

    [operation start];

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更新

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Update

我注释掉了operation.outputStream行，这一次我得到了响应。

推荐答案

这是问题所在。

我正在使用视频的url，并将其作为文件路径的一部分。

I was using the url of the video, and as part of the file path.

为什么这是错误的？它带有反斜杠，因此我认为iOS会感到困惑。

Why is this wrong? It has backslashes, so I assume iOS was getting confused.

经验教训：请确保添加到目录中以创建文件的字符串不会我要反斜杠。

我希望这对犯这个愚蠢错误的人有所帮助。 ：P

I hope this helps anyone else who makes this silly mistake. :P

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