NSURLResponse suggestedFilename example ios

suggestedFilename

Returns a suggested filename for the response data.

- (NSString *)suggestedFilename

Return Value of [NSURLResponse suggestedFilename]

A suggested filename for the response data.

Discussion of [NSURLResponse suggestedFilename]

The method tries to create a filename using the following, in order:

1. A filename specified using the content disposition header.
2. The last path component of the URL.
3. The host of the URL.

If the host of URL can't be converted to a valid filename, the filename “unknown” is used.

In most cases, this method appends the proper file extension based on the MIME type. This method will always return a valid filename regardless of whether or not the resource is saved to disk.

Example of [NSURLResponse suggestedFilename]

- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)aResponse
{
    // store the response information
    self.response = aResponse;

    // Check for bad connection
    if ([aResponse expectedContentLength] < 0)
    {
        NSString *reason = [NSString stringWithFormat:@"Invalid URL [%@]", self.urlString];
        DELEGATE_CALLBACK(dataDownloadFailed:, reason);
        [connection cancel];
        [self cleanup];
        return;
    }

    if ([aResponse suggestedFilename])
        DELEGATE_CALLBACK(didReceiveFilename:, [aResponse suggestedFilename]);
}

Example of [NSURLResponse suggestedFilename]

- (NSString *)total {
NSString *responseString = [[NSString alloc] initWithData:urlData encoding:NSASCIIStringEncoding];
NSString *fileName = [response suggestedFilename];
NSLog(@"Value : %@", fileName);

return fileName;
   }