Mac OS: how to determine path is file or directory - objective-c

Question

I have a path and I want to know, is this directory or a file. Pretty simple, but I have a problem. Here's my path:
NSString *file = #"file://localhost/Users/myUser/myFolder/TestFolder/";
or
NSString *file = #"file://localhost/Users/myUser/myFolder/my_test_file.png";
Here is my code:
BOOL isDir;
// the original code from apple documentation:
// if ([fileManager fileExistsAtPath:file isDirectory:&isDir] && isDir)
// but even my if returns me "not ok" in log
if([[NSFileManager defaultManager] fileExistsAtPath:file isDirectory:&isDir])
{
NSLog(#"directory");
}
else
{
NSLog(#"not ok");
}
files and dirs on this pathes are exists and they are ok. But I thinks problem could be in it. But I don't know why. Help me with this please.
By the way, I get path from another method:
NSArray *contentOfMyFolder = [[NSFileManager defaultManager]
contentsOfDirectoryAtURL:urlFromBookmark
includingPropertiesForKeys:#[NSURLContentModificationDateKey, NSURLLocalizedNameKey]
options:NSDirectoryEnumerationSkipsHiddenFiles
error:nil];
after this in for loop, I get items that stored in array contentOfMyFolder
and get path like this:
for (id item in contentOfMyFolder) {
NSString *path = [item absoluteString];
}
I thinks this is perfectly valid path for method fileExistsAtPath:(NSString *)path isDirectory:(BOOL)isDir
Where the problem could hide?!

Answer 1

The problem is here:
NSString *path = [item absoluteString];
because that creates a string representation of the URL, such as
file://localhost/Users/myUser/myFolder/TestFolder/
and that is not what fileExistsAtPath: expects.
What you need is the path method to convert the URL to a path:
for (NSURL *item in contentOfMyFolder) {
NSString *path = [item path];
BOOL isDir;
if ([[NSFileManager defaultManager] fileExistsAtPath:path isDirectory:&isDir]) {
if (isDir) {
NSLog(#"%# is a directory", path);
} else {
NSLog(#"%# is a file", path);
}
} else {
NSLog(#"Oops, %# does not exist?", path);
}
}
Alternatively, you can ask the URL for its "directory property":
for (NSURL *item in contentOfMyFolder) {
NSNumber *isDir;
NSError *error;
if ([item getResourceValue:&isDir forKey:NSURLIsDirectoryKey error:&error]) {
if ([isDir boolValue]) {
NSLog(#"%# is a directory", item);
} else {
NSLog(#"%# is a file", item);
}
} else {
NSLog(#"error: %#", error);
}
}