本文介绍了如何使文件在Finder中使用objective-c不可见的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我需要隐藏文件在finder以及在聚光灯下,如果可能使用objective-c或使用C调用。
I need to hide the file in finder as well as in spotlight if possible using objective-c or using C calls.
感谢
推荐答案
调用。这是相当原始的代码,只适用于一些文件系统,并且缺少错误检查。
You can set the invisibility attribute through some C calls. This is pretty raw code that only works on some file systems and is missing error checking.
#include <assert.h>
#include <stdio.h>
#include <stddef.h>
#include <string.h>
#include <sys/attr.h>
#include <sys/errno.h>
#include <unistd.h>
#include <sys/vnode.h>
typedef struct attrlist attrlist_t;
struct FInfoAttrBuf {
u_int32_t length;
fsobj_type_t objType;
union {
char rawBytes[32];
struct {
FileInfo info;
ExtendedFileInfo extInfo;
} file;
struct {
FolderInfo info;
ExtendedFolderInfo extInfo;
} folder;
} finderInfo;
};
typedef struct FInfoAttrBuf FInfoAttrBuf;
static int SetFileInvisibility(const char *path, int isInvisible) {
attrlist_t attrList;
FInfoAttrBuf attrBuf;
memset(&attrList, 0, sizeof(attrList));
attrList.bitmapcount = ATTR_BIT_MAP_COUNT;
attrList.commonattr = ATTR_CMN_OBJTYPE | ATTR_CMN_FNDRINFO;
int err = getattrlist(path, &attrList, &attrBuf, sizeof(attrBuf), 0);
if (err != 0)
return errno;
// attrBuf.objType = (VREG | VDIR), inconsequential for invisibility
UInt16 flags = CFSwapInt16BigToHost(attrBuf.finderInfo.file.info.finderFlags);
if (isInvisible)
flags |= kIsInvisible;
else
flags &= (~kIsInvisible);
attrBuf.finderInfo.file.info.finderFlags = CFSwapInt16HostToBig(flags);
attrList.commonattr = ATTR_CMN_FNDRINFO;
err = setattrlist(path, &attrList, attrBuf.finderInfo.rawBytes, sizeof(attrBuf.finderInfo.rawBytes), 0);
return err;
}
或者您可以通过 NSURL
如果你可以定义Snow Leopard,它抽象出每个文件系统如何处理和处理扩展属性。
or you can go through NSURL
if you can target Snow Leopard which abstracts away how each file system processes and handles extended attributes.
NSURL *url = [NSURL fileURLWithPath:path];
[url setResourceValue:[NSNumber numberWithBool:YES] forKey:NSURLIsHiddenKey error:NULL];
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