NSFileManager 文件应用
- (void)clearDisk{ dispatch_async(self.ioQueue, ^ { [[NSFileManager defaultManager] removeItemAtPath:self.diskCachePath error:nil]; [[NSFileManager defaultManager] createDirectoryAtPath:self.diskCachePath withIntermediateDirectories:YES attributes:nil error:NULL]; });}- (void)cleanDisk{ dispatch_async(self.ioQueue, ^ { NSDate *expirationDate = [NSDate dateWithTimeIntervalSinceNow:-self.maxCacheAge]; NSDirectoryEnumerator *fileEnumerator = [[NSFileManager defaultManager] enumeratorAtPath:self.diskCachePath]; for (NSString *fileName in fileEnumerator) { NSString *filePath = [self.diskCachePath stringByAppendingPathComponent:fileName]; NSDictionary *attrs = [[NSFileManager defaultManager] attributesOfItemAtPath:filePath error:nil]; if ([[[attrs fileModificationDate] laterDate:expirationDate] isEqualToDate:expirationDate]) { [[NSFileManager defaultManager] removeItemAtPath:filePath error:nil]; } } });}-(int)getSize{ int size = 0; NSDirectoryEnumerator *fileEnumerator = [[NSFileManager defaultManager] enumeratorAtPath:self.diskCachePath]; for (NSString *fileName in fileEnumerator) { NSString *filePath = [self.diskCachePath stringByAppendingPathComponent:fileName]; NSDictionary *attrs = [[NSFileManager defaultManager] attributesOfItemAtPath:filePath error:nil]; size += [attrs fileSize]; } return size;}- (int)getDiskCount{ int count = 0; NSDirectoryEnumerator *fileEnumerator = [[NSFileManager defaultManager] enumeratorAtPath:self.diskCachePath]; for (NSString *fileName in fileEnumerator) { count += 1; } return count;}
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