我正在开发一款适用于越狱iPhone的应用程序。我正在尝试只获取文件夹的目录。所以我这样做:
NSArray *contentOfFolder = [[NSFileManager defaultManager] directoryContentsAtPath:path];
NSLog(@"contentOfFolder: %@", contentOfFolder);
directoriesOfFolder = [[NSMutableArray alloc] initWithCapacity:100];
for (NSString *aPath in contentOfFolder) {
NSLog(@"apath: %@", aPath);
BOOL isDir;
if ([[NSFileManager defaultManager] fileExistsAtPath:aPath isDirectory:&isDir] &&isDir)
{
[directoriesOfFolder addObject:aPath];
NSLog(@"directoriesOfFolder %@", directoriesOfFolder);
}
}
NSLog(@"dirctories %@", directoriesOfFolder);
但看看我得到了什么。当我得到文件夹的内容时,一切看起来都很好:
2009-07-28 23:23:35.930 Drowser [573:207] new path / private / var 2009-07-28 23:23:35.945 Drowser [573:207] contentOfFolder :( 钥匙扣, “管理偏好”, 移动设备, 备份, 缓存, D b, EA, 空, 文件夹, LIB, 本地, 锁, 日志, 日志, 移动, 封邮件, 喜好, 根, 跑, 阀芯, 藏, TMP, VM )
然后:
2009-07-28 23:23:35.950 Drowser [573:207] apath:Keychains 2009-07-28 23:23:35.954 Drowser [573:207] apath:管理偏好 2009-07-28 23:23:35.959 Drowser [573:207] apath:MobileDevice 2009-07-28 23:23:35.984 Drowser [573:207] apath:备份 2009-07-28 23:23:35.993 Drowser [573:207] apath:cache 2009-07-28 23:23:36.002 Drowser [573:207] apath:db 2009-07-28 23:23:36.011 Drowser [573:207] apath:ea 2009-07-28 23:23:36.019 Drowser [573:207] apath:空 2009-07-28 23:23:36.028 Drowser [573:207] apath:文件夹 2009-07-28 23:23:36.037 Drowser [573:207] apath:lib 2009-07-28 23:23:36.046 Drowser [573:207] directoriesOfFolder( LIB )
只有“lib”!被识别为文件夹。怎么可能?其他人也是文件夹。我通过SSH确认了它。
有没有人有想法?我做错了吗?
答案 0 :(得分:23)
这是一个非常容易犯的错误,但它也很容易修复。枚举目录的内容只会为您提供项目的名称,而不是项目的完整路径。你必须自己构建完整的路径。所以你在哪里:
for (NSString *aPath in contentOfFolder) {
NSLog(@"apath: %@", aPath);
BOOL isDir;
if ([[NSFileManager defaultManager] fileExistsAtPath:aPath isDirectory:&isDir] &&isDir) {
[directoriesOfFolder addObject:aPath];
NSLog(@"directoriesOfFolder %@", directoriesOfFolder);
}
}
你应该真的有这个:
for (NSString *aPath in contentOfFolder) {
NSString * fullPath = [path stringByAppendingPathComponent:aPath];
BOOL isDir;
if ([[NSFileManager defaultManager] fileExistsAtPath:fullPath isDirectory:&isDir] &&isDir) {
[directoriesOfFolder addObject: fullPath];
}
}