NSURLConnection Download Progress

Question

I am trying to show the progress of a download from an API, but NSURLConnectionDelegate does not have a total bytes value anywhere. Is there some way to get the total amount of bytes that I am downloading before it finishes the download?

score 8 · Accepted Answer · answered Sep 14 '12 at 18:03

8

You can get expected contents length from NSURLResponse via -expectedContentLength method. For example if you use NSURLConnection and NSURLConnectionDelegate you can obtain that information in delegate's connection:didReceiveResponse: method:

- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
    ...
    long long contentLength = [response expectedContentLength];
    ...
}

answered Sep 14 '12 at 18:03

Vladimir

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Thats great! Does NSURLResponseUnknownLength come up very often? But hopefully this works out! – RileyE Sep 14 '12 at 18:10
@RileyE sorry, don't know about NSURLResponseUnknownLength... But since I never seen that might mean that it is rather rare :) – Vladimir Sep 14 '12 at 18:40

NSURLConnection Download Progress

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