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

You should set a valid default value for each of your preferences. This value will be used when one has not been set by the user.

NSMutableDictionary *defaults = [NSMutableDictionary dictionary];
[defaults setObject:[NSNumber numberWithInt:25] forKey:@"senset"];
[[NSUserDefaults standardUserDefaults] registerDefaults:defaults];