Book Image

Core Data iOS Essentials

By : Bintu Harwani, B. M. Harwani
Book Image

Core Data iOS Essentials

By: Bintu Harwani, B. M. Harwani

Overview of this book

Core Data is the essential ingredient in data driven iOS apps. It's used for storing, retrieving, and manipulating application data in databases, XML, and binary formats. It's an essential component for iPhone, iPod Touch, and iPad apps.Core Data Essentials provides a clear, readable guide to the most useful aspects of Core Data. Built around a realistic example app, the book showcases the most important aspects of Core Data development in the context of a complete, functioning app written in Objective C.The book starts with a tour of how the app works. Then you'll see how to easily display data using the Table View. You'll learn how to develop an appropriate data model that fits the needs of your app, then implement that model as updatable data objects. You'll see how to update data and build relationships between objects and learn how Core Data can work with search, and how to provide your users with friendly data editing features.
Table of Contents (19 chapters)
Core Data iOS Essentials
About the Author
About the Reviewers

addCustomer method

The addCustomer method is invoked when the user selects the plus (+) button in the navigation bar. This method displays a View that prompts the user to enter the name, email id, and contact number of the customer. On selecting the Save button (after entering the name of the customer), a new managed object is created and inserted. We can see in the code that we create and initialize an instance of the AddCustomerController class by the name: addcustomerController. Also, we set the current View Controller file: RootViewController.m as the delegate of the addcustomerController instance. That is, this class will implement the delegate methods of the AddCustomerController class. Then we insert a new managed object into the managed context using the class method on NSEntityDescription. Also, we return the instance of class that represents the entity (Customer) and assign it to the cust object of addcustomerController (instance of AddCustomerController class)

To display a navigation...