Question

Apple is telling to do so in this document over here, and here.

I’d hate to re-invent the wheel and am sure someone did this already, but I wasn’t lucky with Google. Does someone know a blog that points out how to do exactly that?

The problem is, I must create this directory with the app bundle ID name inside Library but only if it does not exist.

Answer 1

I think this is what you are looking for:

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSLibraryDirectory, NSUserDomainMask, YES);
NSString *libraryPath = [paths objectAtIndex:0];
NSString *bundlePath = [libraryPath stringByAppendingPathComponent:[[NSBundle mainBundle] bundleIdentifier]];
if(![[NSFileManager defaultManager] fileExistsAtPath:bundlePath]) {
    [[NSFileManager defaultManager] createDirectoryAtPath:bundlePath withIntermediateDirectories:YES attributes:nil error:NULL];
}