how to store value perment in objective c

Question

I have made two text fields first is city and second is state and I made two actions of their fields when you clicked in this field you push two new view controller and this controller have name of cities and states when you clicked any cities or states this value passed to main view controller and its text fields display selected value but first I selected city and it shows me name of city in city text field and then I select state show text field to show me value of state in state text field but city text field is empty so how I store value permanent in both text fields.

Answer 1

To store your array myarray:

NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
[userDefaults setObject:myarray forKey:@"arraySaved"];
[userDefaults synchronize];

To get the information back:

NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
NSArray *myarray = [userDefaults objectForKey:@"arraySaved"];