Book Image

Mastering macOS Programming.

By : Gregory Casamento
Book Image

Mastering macOS Programming.

By: Gregory Casamento

Overview of this book

macOS continues to lead the way in desktop operating systems, with its tight integration across the Apple ecosystem of platforms and devices. With this book, you will get an in-depth knowledge of working on macOS, enabling you to unleash the full potential of the latest version using Swift 3 to build applications. This book will help you broaden your horizons by taking your programming skills to next level. The initial chapters will show you all about the environment that surrounds a developer at the start of a project. It introduces you to the new features that Swift 3 and Xcode 8 offers and also covers the common design patterns that you need to know for planning anything more than trivial projects. You will then learn the advanced Swift programming concepts, including memory management, generics, protocol orientated and functional programming and with this knowledge you will be able to tackle the next several chapters that deal with Apple’s own Cocoa frameworks. It also covers AppKit, Foundation, and Core Data in detail which is a part of the Cocoa umbrella framework. The rest of the book will cover the challenges posed by asynchronous programming, error handling, debugging, and many other areas that are an indispensable part of producing software in a professional environment. By the end of this book, you will be well acquainted with Swift, Cocoa, and AppKit, as well as a plethora of other essential tools, and you will be ready to tackle much more complex and advanced software projects.
Table of Contents (28 chapters)
Title Page
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Dedication
Preface
18
LLDB and the Command Line

Introducing CALayer


We could think of Core Animation layers as a lightweight version of NSView. Layers don't come with many of the properties that we generally associate with views, particularly those associated with user interaction, but much of a view's appearance is in fact the product of its underlying layer.

Almost any CALayer property is animatable--check the CALayer docs for anything that is labeled CAAnimatable.

Subclasses of CALayer can implement the drawInContext method to use Core Graphics drawing methods, or they can set a delegate that implements a drawLayer:inContext method. But Core Graphics is a 2D framework, whereas CALayer offers support for perspective and 3D drawing.

Creating a project

To look at what Core Animation can do, we'll need a window to view it in, so let's get that set up first:

  1. Create a new project and navigate to the Main.storyboard in the project navigator.
  2. In the document organizer, expand the Window Controller Scene, then expand the Window Controller, and then...