IOS获取文件属性。（包括创建日期）

FileInfo *fileInfo = [[FileInfo alloc] init];
fileInfo.name = fileName;
fileInfo.path = [rootPath stringByAppendingPathComponent:fileName];

//判断是文件夹还是文档
BOOL isDir = YES;
[fileManager fileExistsAtPath:fileInfo.path isDirectory:&isDir];
if (isDir) {
//文件夹
fileInfo.isDir = YES;
fileInfo.isLock = NO;
}else{
//文档
}

NSError *error = nil;
NSDictionary *fileAttributes = [[NSFileManager defaultManager] attributesOfItemAtPath:fileInfo.path error:&error];
if (fileAttributes) {
NSNumber *fileSize;
NSString *fileOwner, *creationDate;
NSDate *fileModDate;
//文件大小
if ((fileSize = [fileAttributes objectForKey:NSFileSize])) {
NSLog(@"File size: %qi\n", [fileSize unsignedLongLongValue]);
if (!fileInfo.isDir) {
fileInfo.size = [fileSize intValue];
}
}
//文件创建日期
if ((creationDate = [fileAttributes objectForKey:NSFileCreationDate])) {
NSLog(@"File creationDate: %@\n", creationDate);
fileInfo.date = creationDate;
}
//文件所有者
if ((fileOwner = [fileAttributes objectForKey:NSFileOwnerAccountName])) {
NSLog(@"Owner: %@\n", fileOwner);
}
//文件修改日期
if ((fileModDate = [fileAttributes objectForKey:NSFileModificationDate])) {
NSLog(@"Modification date: %@\n", fileModDate);
}
}