How would I save and retrieve a boolean into a file using NSData

Question

I want to save a boolean into a file and also I want to know how you would retrieve it again. I mainly want to use this for when the iPhone terminates and finishes launching in their respected methods.

Answer 1

An alternative to manually saving to a file is to use NSUserDefaults.

To save:

[[NSUserDefaults standardUserDefaults] setBool:myBool forKey:@"myBool"];

To load:

myBool = [[NSUserDefaults standardUserDefaults] boolForKey:@"myBool"];