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

Adding names to the Table View

To add more names to the table view, we need to add a View Controller class that displays a navigation bar with two items: Save and Cancel. This View Controller class also displays a View that prompts the user to enter a name to be added. We also need to add code to the RootView controller implementation file, so that when the user selects the Save button after entering the new name, it's added to the Table View for display.

The sequence is as follows:

  1. 1. Add a View Controller class called AddNameController.

  2. 2. Define a protocol, outlets, and action methods in the AddNameController.h header file.

  3. 3. Define the View of the AddNameController class and the connecting controls.

  4. 4. Add code to the AddNameController.m implementation file to invoke delegate methods.

  5. 5. Invoke the newly added AddNameController View and implement the protocol methods.

  6. 6. Place a Bar Button Item Control in the RootViewController and connect it.

Adding the AddNameController View controller...