You could not be more wrong. Not only is it part of iOS, it is part of UIApplication, the class on which any iOS app is built. Why even bother commenting, if you're just going to make stuff up?
I'm guessing you didn't even click on the web link, which, you will notice if you do, does not lead to any library. It's just a site (which I've never visited before this myself either... don't need to, to write or use inter-app URL launches) that hosts an informal registry of protocols along with information on what they launch.
I'm guessing you didn't even click on the web link, which, you will notice if you do, does not lead to any library. It's just a site (which I've never visited before this myself either... don't need to, to write or use inter-app URL launches) that hosts an informal registry of protocols along with information on what they launch.