How do you save an integer to NSUserDefaults?

Question

Does anyone know how I would go about saving my high score integer to NSUserDefaults so I can load it later?

score 58 · Answer 1 · answered Sep 26 '09 at 20:27

58

[[NSUserDefaults standardUserDefaults] setInteger:HighScore forKey:@"HighScore"];

… to get it back:

NSInteger highScore = [[NSUserDefaults standardUserDefaults] integerForKey:@"HighScore"];

This is explained very simply in the documentation.

answered Sep 26 '09 at 20:27

iKenndac

10

You are right, of course. But Googling (and finding useful two-line solutions like your's) is MUCH faster than digging through Apple's documentation. You could argue that, by Googling, I'm either lazy, or efficient..! – Mike Gledhill Apr 25 '14 at 13:14

score 10 · Answer 2 · answered Sep 26 '09 at 20:33

More generally, you can save Foundation class objects to the user defaults, e.g.:

[[NSUserDefaults standardUserDefaults] setObject:[NSNumber numberWithInt:highScore] forKey:@"kHighScore"];

and

NSInteger highScore = [[[NSUserDefaults standardUserDefaults] objectForKey:@"kHighScore"] intValue];

But the convenience method is there for taking in an NSInteger directly.

I prefer to use the more agnostic -setObject: and -objectForKey: because it more cleanly separates the object type from access to the dictionary.

2 Answers2