How to programmatically get the URL Identifier - the prefix of your own application in Xcode?

Question

Objective-C

I am creating my own framework, which will be built into third-party applications.
It is necessary that the framework can programmatically obtain the URL Identifier parameter of the application to which the framework is added.
Tried like this:
[[NSBundle mainBundle] objectForInfoDictionaryKey:@"CFBundleURLName"]
But I get null

Answer 1

Already figured out:
for (NSDictionary *item in [fileInfo objectForKey:@"CFBundleURLTypes"]) {
NSLog(@"!!!!!!!!!!!!!!!%@", [item objectForKey:@"CFBundleURLName"] );
}