Xcode 7 Essentials - Second Edition
Format: PDF / Kindle (mobi) / ePub
Step up your iOS development with the power and wealth of features of Xcode 7
About This Book
- Updated for the latest Xcode 7 release, this is the first book that will show you how to use all the new features available in Xcode 7 to their fullest
- This guide to will get you up and running with the entire workflow to develop Apple apps without previous Xcode experience
- Packed with plenty of tips on how to use Xcode with Swift 2 and other existing Apple frameworks to develop robust apps at a rapid pace
Who This Book Is For
If you are a novice programmer who is familiar with the concepts of object-oriented programming, but have little to no knowledge of Swift, Xcode, or Apple's Cocoa APIs, then this book is for you. Starting with an introduction to the basics of Xcode and the Swift programming language, you will learn all of the skills that are essential to build an app and submit it to the App Store
What You Will Learn
- Get an introduction to Xcode and get to know how to navigate and use the tool
- Build playgrounds to learn and explore the environment
- Create an adaptive UI with the interface builder that will help your app to scale through a wide range of devices
- Understand Table, Collection, and Stack views and find out how they can be implemented
- Create custom components for your application through frameworks and live previews
- Exploit Xcode's advanced features to elevate your debugging and testing capabilities
- Run your application on the physical device and submit it to the App store
Apple's Xcode technology is making the development curve smoother than it has ever been with its easy-to-develop features and enhancements. With the latest release of Xcode 7, Apple has also added great support for Swift development.
This book will introduce you to all the new features of Xcode 7 and demonstrate how Swift programming can be much easier, faster, and simply better with Xcode!
Even if you're starting with just a little knowledge of Swift or Xcode, you will learn the basics of the language as well as the tool. You will then use this knowledge to create simple applications and will learn how to debug and optimize your code. At the end of this book, you would have learned enough to build, run and submit your very own application to the App Store.
Style and approach
This is a step-by-step guide, full of practical and real world examples, to help you get to grips with Xcode with ease. A demo project is also provided at the end of the book, where you can test your skills.
for more information. The Any and AnyObject types There are two special object types in Swift for working with objects that you need to be non-specific: Any and AnyObject. AnyObject is meant to represent any instance of a class while Any can represent anything including closures. Note It's recommended that you avoid casting your objects as either of these types if possible. It's much better to maintain type safety and specifically declare the types of your values. Using the Any type, you can
languages Summary 3. Playgrounds Before we start The storyboard workspace Learning Swift Working with constants and variables Value types Working with strings Working with numbers Working with Booleans Adding different types Collection types Array type Creating arrays Accessing items Modifying arrays Loops and iteration Dictionary type Creating dictionaries Accessing items Modifying items Loops and iteration Set type Creating sets Accessing,
dropping all of your UI elements. Because we selected the Single View Application template, our canvas is prepopulated with a single view: The canvas with an empty view Note The arrow on the left hand side of the central white box says that this is the initial view. This is important as you build more complex user interfaces. There are three icons at the top of each view: View Controller: This represents the controller that handles the logic of this view. It needs to extend the
you learned what Interface Builder is and how to use it to create the user interfaces in your applications using Storyboards. You learned about the MVC design pattern and how Interface Builder helps you create the View portion of the MVC pattern. We also discussed how you can easily support many screen sizes by creating an adaptive user interfaces by using Size Classes and Auto Layout, and even add or remove UI elements for specific screen sizes. Finally, you learned how to connect your views to
this to run a certain subset of your tests. To run all the tests at once, navigate to Product | Test or use the Cmd + U keyboard shortcut. You can see a history of the tests that have been run by opening the report navigator sidebar (Cmd + 8). By selecting one of the items in the listing, you can see any details about the event in question. Code coverage Xcode 7 offers the new ability to intelligently know how much of your code base is being tested. This is called code coverage, and it needs