Youtube Video ID From URL - Objective C

Question

I basically have a Youtube url as an NSString, but I need to extract the video id that is displayed in the url. I found many tutorials on how to do this in php or and other

Answer 1

I used the highest voted answer to write a better, more restrictive regex.

NSString *regex = @"(?:youtube.com.+v[=/]|youtu.be/)([-a-zA-Z0-9_]+)";

and then you can get the ID

NSTextCheckingResult *match = [regex firstMatchInString:url
                                                options:0
                                                  range:NSMakeRange(0, [url length])];
NSRange videoIDRange = [match rangeAtIndex:1];
NSString *youTubeID = [url substringWithRange:videoIDRange];