object-c 获得目录（包括子目录）下所有文件

vector<string> getAllFileNamesInDirectory(){

//ref to: http://stackoverflow.com/questions/5749488/iterating-through-files-in-a-folder-with-nested-folders-cocoa

NSFileManager *fileManager = [[[NSFileManager alloc] init] autorelease];

NSURL *directoryURL = [NSURL URLWithString:@"toolKitRes/model"];   // URL pointing to the directory you want to browse

NSArray *keys = [NSArray arrayWithObject:NSURLIsDirectoryKey];

NSDirectoryEnumerator *enumerator = [fileManager

enumeratorAtURL:directoryURL

includingPropertiesForKeys:keys

options:0

errorHandler:^(NSURL *url, NSError *error) {

// Handle the error.

// Return YES if the enumeration should continue after the error.

return YES;

}];

vector<string> fullPathList;

for (NSURL *url in enumerator) {

NSError *error;

NSNumber *isDirectory = nil;

if (! [url getResourceValue:&isDirectory forKey:NSURLIsDirectoryKey error:&error]) {

// handle error

}

else if (! [isDirectory boolValue]) {

// No error and it’s not a directory; do something with the file

NSString *str_NS=[url absoluteString];

////  NSLog(@"%@",str_NS);

string fullPath=[str_NS cStringUsingEncoding:NSASCIIStringEncoding];

fullPathList.push_back(fullPath);

}

}

return fullPathList;

}