IPhone SDK Default NSUserDefaults

Question

I have set up the user defaults to record a integer for a UISlider, the problem is that, if the user has only just installed the app then the integer is zero or NULL. Is the

Answer 1

Just ask for objectForKey:. If it isn't set, it will return nil.

Your test doesn't work, because integerForKey: with an unset value will return 0, which is nil, which is NULL. The differences between them only exist to the compiler.