Saving data in a UITextField when switching between UIViewController

Question

(first UIViewController)I have several UITextfields that will have some number value within them. I use a UIButton to switch to my (second UIViewController). Its when I switch back to my (first viewController) that my information gets reset. How do I save that data?

Answer 1

You could use NSUserDefaults:

[[NSUserDefaults standardUserDefaults] setObject:variableTextField forKey@"Key"];

NSString *email = [[NSUserDefaults standardUserDefaults] objectForKey:@"Key"];
    
emailLogin.text = email;