Copy From Resource Folder to Document Directory in iPhone SDK

NSFileManager *fileManager = [NSFileManager defaultManager];

NSError *error;

NSArray *paths = NSSearchPathForDirectoriesInDomains( NSDocumentDirectory,

NSUserDomainMask, YES);

NSString *documentsDirectory = [paths objectAtIndex:0];

NSString *documentDBFolderPath = [documentsDirectory stringByAppendingPathComponent:@"YourFolderName"];

NSString *resourceDBFolderPath = [[[NSBundle mainBundle] resourcePath]

stringByAppendingPathComponent:@"YourFolderName"];

    [fileManager copyItemAtPath:resourceDBFolderPath toPath:documentDBFolderPath error:&error];