Book Image

Mastering macOS Programming.

By : Stuart Grimshaw, Gregory Casamento
Book Image

Mastering macOS Programming.

By: Stuart Grimshaw, 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

Encapsulating views with NSStackView


One of the most useful views in a storyboard UI is, ironically, one that the user never sees. That view is NSStackView.

The idea is simple: Put views that are spatially related to each other into a containing view that offers support for automatically aligning, distributing, and spacing the items that are placed within it.

This offers a number of advantages:

  • It's a really quick way to lay out a set of UI elements, particularly when you need to align text baselines and such, which can get a bit fiddly at times.
  • It's really robust, in terms of design, since the elements within an NSStackView will retain their relative layout regardless of what happens outside of the view.
  • The default values give an immediately Apple-typical look.

This is a good example of if you can use Apple's little helpers, you probably should.

Let's take a rather messy, not yet laid out interface:

We can group-select the two buttons and the label on the left, and hit the Embed in Stack button...