Question

The question title pretty much gives it away – I’d like my app to remember a few things. It’s some sort of calculator, so it should save the last used values and some user selectable settings.

Basically I’d like to save a handful of floats and BOOLs and load them again the next time the app loads.

What’s the best and easiest way to do that?

Thanks!!

Answer 1

One of the easiest ways would be saving it in the NSUserDefaults:

Setting:

NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];

[userDefaults setObject:value 
                 forKey:key];
// – setBool:forKey:
// – setFloat:forKey:  
// in your case 
[userDefaults synchronize];

Getting:

[[NSUserDefaults standardUserDefaults] objectForKey:key];

– boolForKey:

and

– floatForKey: in your case.