Learning Mobile App Development: A Hands-on Guide to Building Apps with iOS and Android

Saving Data to Core Data

With the data model and the managed object set up, it’s time to start saving the data from the user interface to Core Data.

But first, the user interface on the Contacts screen needs to be changed to add a Save button in the navigation bar. The code to do this is very similar to the Date controller. Open LMAContactsController.m and update the viewDidLoad: method to match Listing 11.7.

Listing 11.7 Adding the Save Button in LMAContactsController.m

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- (void)viewDidLoad{    [super viewDidLoad];       // Do any additional setup after loading the view, typically from a nib.        _scrollView.contentSize = CGSizeMake(320,500);    UIBarButtonItem *saveButton =                   [[UIBarButtonItem ...