在Cocoa中查找文件的上次修改日期

Question

如何在cocoa中找到文件的上次修改日期？

Answer 1

查看NSFileManager的

- (NSDictionary *)fileAttributesAtPath:(NSString *)path traverseLink:(BOOL)flag

你感兴趣的关键是NSFileModificationDate.

Answer 2

只是为了更新代码:

NSString * path = ... your path here ...
NSDate * fileLastModifiedDate = nil;

NSError * error = nil;
NSDictionary * attrs = [[NSFileManager defaultManager] attributesOfItemAtPath:path error:&error];
if (attrs && !error)
{
    fileLastModifiedDate = [attrs fileModificationDate];
}