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Mastering macOS Programming

You're reading from   Mastering macOS Programming Hands-on guide to macOS Sierra Application Development

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Product type Paperback
Published in May 2017
Publisher Packt
ISBN-13 9781786461698
Length 626 pages
Edition 1st Edition
Languages
Tools
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Authors (2):
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Gregory Casamento Gregory Casamento
Author Profile Icon Gregory Casamento
Gregory Casamento
Stuart Grimshaw Stuart Grimshaw
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Stuart Grimshaw
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Table of Contents (28) Chapters Close

Title Page
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Dedication
Preface
1. Hello macOS FREE CHAPTER 2. Basic Swift 3. Checking Out the Power of Xcode 4. MVC and Other Design Patterns 5. Advanced Swift 6. Cocoa Frameworks - The Backbone of Your Apps 7. Creating Views Programmatically 8. Strings and Text 9. Getting More from Interface Builder 10. Drawing on the Strength of Core Graphics 11. Core Animation 12. Handling Errors Gracefully 13. Persistent Storage 14. The Benefits of Core Data 15. Connect to the World - Networking 16. Concurrency and Asynchronous Programming 17. Understanding Xcodes Debugging Tools 18. LLDB and the Command Line 19. Deploying Third - Party Code 20. Wrapping It Up

Understanding schemes


Imagine a tool that, with a couple of mouse clicks, or even a keyboard shortcut, will change the display name of an app from Flappy Mushroom Test to Flappy Mushroom, change the app's Bundle ID, swap one set of server endpoints for another, and to cap it off, change your application region from system region to Iceland.

That tool, in Xcode, is scheme selection. If you haven't used schemes before, we're talking about this thing:

It's the SalesTaxCalc bit, in this example. If you click on it with a new project, you'll see this:

But before we accept the invitation to create a New Scheme..., or edit the one we have already, let's see why they're of interest to us.

What schemes actually do

Basically, schemes are way to control many of the things that happen when you hit the Run button. There are a whole host of options that we may wish to change when running an app under different circumstances (whether real or simulated), and Xcode exposes to us dozens of settings that are brought...

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