- (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; }
NSFileManager 文件应用
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转载自wang-peng1.iteye.com/blog/1806462
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