In your NSURLConnection
delegate, implement something like this to find out the total content length. The server has to support this, but it will most likely work fine with static content:
- (void)connection: (NSURLConnection*) connection didReceiveResponse: (NSHTTPURLResponse*) response
{
statusCode_ = [response statusCode];
if (statusCode_ == 200) {
download_.size = [response expectedContentLength];
}
}
And then update progress like this:
- (void) connection: (NSURLConnection*) connection didReceiveData: (NSData*) data
{
[data_ appendData: data];
download_.progress = ((float) [data_ length] / (float) download_.size);
// Broadcast a notification with the progress change, or call a delegate
}
In my case I have a download instance that has size
and progress
properties. They are owned by a global DownloadManager
object that will take care of notifying interested parties of the download progress or state changes.
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