How to determine if a string is a URL in Objective-C

Question

I'm new to iPhone development and Objective-C. Using the ZBar SDK I've developed a basic app which scans a QR image from the photo album and outputs what it translates to.

I want to know if there is a way to take this output, determine whether it is a URL and if so open it in a web browser.

Thanks Zac

Answer 1

NSURL's URLWithString returns nil if the URL passed is not valid. So, you can just check the return value to determine if the URL is valid.