How to check if NSUserDefaults exist

Question

I have been looking for an answer but not really found what i am looking for.

I have an application and is using NSUserDefaults to store 'currentGameStatus' and would like to ask the following questions:

1. How do i check if the NSUserDefaults .plist exists? Need this to determine if i need to create it for the first time and if so fill it with default values

2. Where do i find it on my Mac (running simulator)? Would need to delete it to test if the first run works?

Answer 1

you don't check.

you register your defaults. and if you haven't saved a value the default will be used.

NSDictionary *defaultUserDefaults = [NSDictionary dictionaryWithObjectsAndKeys:
                                     [NSNumber numberWithBool:NO], @"Foo",
                                     @"Bar", @"Baz",
                                     [NSNumber numberWithInteger:12], @"FooBar",
                                     nil];
[[NSUserDefaults standardUserDefaults] registerDefaults:defaultUserDefaults];

and you do this every time your app launches.