How to get file size properly and convert it to MB, GB in Cocoa? [duplicate]

Answer 1

If you're targeting OS X 10.8 or iOS 6, you can use NSByteCountFormatter.

I would write your example like this:

    NSError *error = nil;
    NSDictionary *attribs = [[NSFileManager defaultManager] attributesOfItemAtPath:path error:&error];
    if (attribs) {
        NSString *string = [NSByteCountFormatter stringFromByteCount:[attribs fileSize] countStyle:NSByteCountFormatterCountStyleFile];
        NSLog(@"%@", string);
    }