UIWebView Link Delegate

Question

What I'm trying to do is create an app that will download files of certain extensions (let's say a .mp3 file from my FTP). I want a delegate method for tapping a link in a UIWebview, and if the link ends in ".mp3", create some sort of download method that would write the file to the /Documents directory with an automatic file name.

Is there any way to achieve this? I've looked everywhere for downloading files and writing them to the /Documents directory but no answers.

Thanks in advance!

Answer 1

Yes there is:

      - (void)webViewDidFinishLoad:(UIWebView *)aWebView
        {
            currentURL = self.webView.request.URL.absoluteString;
            NSLog(@"Current URL %@", currentURL);
            if ([currentURL rangeOfString:@"mp3"].location == NSNotFound) {
                NSLog(@"string does not contain mp3");   
            } else {
                NSLog(@"Found mp3");
                //Do the download here
NSString *urlString = currentURL;
            NSURL  *url = [NSURL URLWithString:urlString];
            NSData *urlData = [NSData dataWithContentsOfURL:url];
            [urlData writeToURL:url atomically:YES];
            if ( urlData )
            {  
                NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
                NSString  *documentsDirectory = [paths objectAtIndex:0];

                NSString  *filePath = [NSString stringWithFormat:@"%@/%@", documentsDirectory,@"downloadedMP3.mp3"];
                [urlData writeToFile:filePath atomically:YES];
            }
            }
        }

Don't forget to conform to the UIWebView protocol in your .h file (<UIWebViewDelegate>)