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  • Learning Xcode 8
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Learning Xcode 8

Learning Xcode 8

By : Tiano
4.3 (3)
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Learning Xcode 8

Learning Xcode 8

4.3 (3)
By: Tiano

Overview of this book

Over the last few years, we’ve seen a breakthrough in mobile computing and the birth of world-changing mobile apps. With a reputation as one of the most user-centric and developer-friendly platforms, iOS is the best place to launch your next great app idea. As the official tool to create iOS applications, Xcode is chock full of features aimed at making a developer’s job easier, faster, and more fun. This book will take you from complete novice to a published app developer, and covers every step in between. You’ll learn the basics of iOS application development by taking a guided tour through the Xcode software and Swift programming language, before putting that knowledge to use by building your first app called “Snippets.” Over the course of the book, you will continue to explore the many facets of iOS development in Xcode by adding new features to your app, integrating gestures and sensors, and even creating an Apple Watch companion app. You’ll also learn how to use the debugging tools, write unit tests, and optimize and distribute your app. By the time you make it to the end of this book, you will have successfully built and published your first iOS application.
Table of Contents (18 chapters)
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17
Index

Preparing Snippets for Core Data


In the last section, we learned about how to start using Core Data in a project that already has the feature enabled from the beginning. However, our Snippets project was started without Core Data enabled so, before we can continue, we're going to have to prepare our project for use with Core Data. There are two things we need to do: set up the managed context and the rest of the Core Data stack in our AppDelegate.swift file, and then create the data model for Snippets using the editor we just covered. Before we get started, open your Snippets Xcode project (or use my final version from Chapter 8, Exploring Common iOS Frameworks), and import the CoreData framework.

Initializing the Core Data stack

So far, we've only looked at how to create a data model in Core Data. Now, we need to set up the code that will let us load, manipulate, and save our data. The objects that help us to do this are referred to as the Core Data stack. This is composed of three pieces...

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