Objective c 是否删除iOS中的空文件夹?
我在应用程序的文档文件夹中有很多空的临时文件夹 如何将它们全部删除 我试过:Objective c 是否删除iOS中的空文件夹?,objective-c,ios5,nsfilemanager,Objective C,Ios5,Nsfilemanager,我在应用程序的文档文件夹中有很多空的临时文件夹 如何将它们全部删除 我试过: NSArray *folders = [[NSFileManager defaultManager]contentsOfDirectoryAtURL:[self applicationDocumentsDirectory] includingPropertiesForKeys:[NSArray arrayWithObject:@"NSURLIsDirectoryKey"] options:0 error:nil]; i
NSArray *folders = [[NSFileManager defaultManager]contentsOfDirectoryAtURL:[self applicationDocumentsDirectory] includingPropertiesForKeys:[NSArray arrayWithObject:@"NSURLIsDirectoryKey"] options:0 error:nil];
if (folders) {
for (NSURL *url in folders) {
[[NSFileManager defaultManager]removeItemAtURL:url error:nil];
}
}
但它不仅删除文件夹,而且删除所有文件夹。这段代码只删除空的目录
NSFileManager *fileManager = [[NSFileManager alloc] init];
NSString *documentsDirectory = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
NSArray *files = [fileManager contentsOfDirectoryAtPath:documentsDirectory error:nil];
for (NSString *file in files) {
NSString *fullPath = [documentsDirectory stringByAppendingPathComponent:file];
NSError *error;
if ([[fileManager contentsOfDirectoryAtPath:fullPath error:&error] count]==0) {
// check if number of files == 0 ==> empty directory
if (!error) {
// check if error set (fullPath is not a directory and we should leave it alone)
[fileManager removeItemAtPath:fullPath error:nil];
}
}
}
如果您只想删除所有目录(空和不空),代码段可以简化为:
NSFileManager *fileManager = [[NSFileManager alloc] init];
NSString *documentsDirectory = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
NSArray *files = [fileManager contentsOfDirectoryAtPath:documentsDirectory error:nil];
for (NSString *file in files) {
NSString *fullPath = [documentsDirectory stringByAppendingPathComponent:file];
if ([fileManager contentsOfDirectoryAtPath:fullPath error:nil])
[fileManager removeItemAtPath:fullPath error:nil];
}