Download e-book for iPad: Core Data iOS Essentials by B.M.Harwani

By B.M.Harwani

Knowing center facts grants the choice of constructing data-driven iOS apps, and this ebook is the correct solution to study because it takes you thru the method of constructing a precise app with hands-on instructions.

Overview

  • Covers the basic talents you wish for operating with middle info on your applications.
  • Particularly fascinated with constructing speedy, gentle weight data-driven iOS applications.
  • Builds a whole instance software. each method is proven in context.
  • Completely sensible with transparent, step by step instructions.

What you are going to examine from this book

  • Get a high-quality grab of what middle info is and the way it works
  • Build complete featured information pushed purposes for iOS devices
  • Design acceptable information types to suit your app's needs
  • Make your app's info simply searchable
  • Display your info in an enticing, versatile way

Approach

The booklet follows an unfolding instance app, exploring the positive factors and ideas of middle information as they're additional to the app. The booklet is stuffed with step by step directions, transparent reasons, and beneficial speedy reference material.

Who this booklet is written for

If you've got already explored iOS improvement and perhaps even dabbled with middle facts, this e-book will set your data-driven software improvement on a company footing.

In Detail

Core information is the basic element in information pushed iOS apps. it really is used for storing, retrieving, and manipulating software facts in databases, XML, and binary codecs. it truly is a vital part for iPhone, iPod contact, and iPad apps.

Core information necessities offers a transparent, readable consultant to the main worthy features of center facts. equipped round a practical instance app, the booklet showcases crucial features of middle information improvement within the context of an entire, functioning app written in target C.

The ebook starts off with a journey of the way the app works. Then you will see find out how to simply show info utilizing the desk View. you will find out how to improve a suitable facts version that matches the desires of your app, then enforce that version as updatable info items. you will see the right way to replace info and construct relationships among gadgets and find out how center facts can paintings with seek, and the way to supply your clients with pleasant information enhancing features.

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Extra resources for Core Data iOS Essentials

Sample text

The answer is simple. m and its objects will adopt protocols, so that they can be used by other objects in a well-defined manner. m, will implement the methods of the protocols defined in other classes of the application. Understanding Objective-C Protocol and Table View This chapter will help you to better understand what we mean by the terms protocol, delegate, methods, and so on, through a running application. Before we begin with the protocols, let's get a quick idea of the two patterns, Delegation pattern and Strategy pattern: • The Delegation pattern is usually used to allow reuse of objects by allowing a helper object, or delegate, to assume the responsibility of customizing the behavior of the existing object without modifying its code.

To see if the stock has been updated, first click on the Master Product Information button from the toolbar at the bottom of the main view (the first view of the application); we'll see the list of products we saved earlier, as shown in the given image (b). After selecting a master product, we'll see the page that displays the master product information, as shown in next given image (c). And we'll find that the quantity of the master product has been adjusted accordingly. [ 36 ] Chapter 2 Summary • In this chapter, we had an introduction of what Core Data is and its features that make it a preferred framework used for persisting information.

Declare the protocol methods [ 40 ] Chapter 3 Defining the protocol A protocol is defined by using the @protocol compiler directive, combined with an @end directive. In between the two directives, we must declare the protocol method: @protocol protocolname method declarations; @end Creating a delegate property The delegate property is created in the class definition of the object that will utilize a delegate, not in the protocol nor in the class that adopts the protocol. A delegate property is created by defining an instance variable in the header file and synthesizing it in the implementation file.

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