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

Running the project

Now, we are ready to run the project. Let us select the Build and Go icon from the Xcode Project window. Initially, we get a blank table view (the following image (a)) with Edit and + (plus) button on the left and right side of the navigation bar respectively. On selecting the + button, the View of the AddNameController class will appear, which prompts the user to enter the name of the customer, as shown in the following given image (b). We can also see the two Bar Button Item Controls with titles Cancel and Save respectively in the navigation bar of the View of the AddNameController class. On selecting the Save button, after entering a name in Text Field control, the name will be stored in the persistent store and the table view will be refreshed (reloaded) to display the new name added, as shown in the following given image (c):

After entering a few names, our table view may appear, as shown in the following image (a). We can delete any name by selecting the corresponding...