Exploring Mac App Development Strategies
Exploring Mac App Development Strategies
Patterns & Best Practices for Clean Software Architecture on the Mac with Swift 3 and Tests
About the Book
Driven by Example, this Book Applies Useful Patterns of Clean Software Architecture to Mac App Development
You do some kind or other of what may be called "software architecture" anyway.
So better know the reasons for the moves you take. Own the alternatives, and design your code accordingly to gain confidence that your stuff is really working.
Learn how to …
- design reusable code,
- get a solid test harness up and running, and
- separate the components of your application.
All this will make your application easier to change and easier to maintain. It will make you a happier developer, even when you're just exploring new parts of the Cocoa Framework.
To develop Mac applications, you'll need to know why and how to separate components. Using the latest technology and a head-start into Swift programming, this book will show you the pro's and con's of several design decisions and discuss alternative approaches so you get to know your options.
The Core Ideas of the Book
I want to share the core ideas and theses of the book with you:
- Apple's Core Data is a very invasive framework. It works best when you couple everything, beginning at the user interface, to Core Data entities. Cocoa Bindings make a lot of the magic possible, but they come at a cost: the Core Data entities (or
NSManagedObject
subclasses, for that matter) are bound to do a lot of different things for different "clients", wheras by 'client' I mean consuming views, background services, and the like. It'd be easier to maintain the code if you model entities for each "Bounded Context" separately. - Adopting Domain-Driven Design thinking, small service objects are favorable. It's easy to create Data Transfor Objects in Swift using
struct
s, for example. Core Data should be pushed outside the domain (i.e. where the business logic is hosted) and become an implementation detail. - Once you free your app from the entanglement by Core Data (and other Apple suggested best practices which don't scale well), you will be able to leverage powerful design patterns. I created domain event wrappers around
NSNotification
to make event handling easier and failure-proof. Using events to propagate changes (instead of using Bindings, for example) makes concurrent programming easier.
That's part of the topics we cover in this book. Maybe you won't be a DDD expert afterwards, but so neither am I. Instead, we'll explore useful patterns to make the code manageable and to get more comfortable ever writing Mac applications which are ready to scale.
The Book is Open Source, by the way!
The book is Open Source. You can contribute on GitHub:
Just create a pull request if you came up with a better description of something, or if you want to add a useful reference, for example. Together, we can make the book a lot better.
Your feedback is much appreciated!
Bundles that include this book
Table of Contents
-
-
Prologue
- Who Is This Book For?
- Contributing to the Book Manuscript and Example Project
- Motivation to Write This Book
- The Example
- Architecture Overview
- Patterns & Principles
-
Prologue
-
The Story of Developing a Clean App by Example
-
Part 1: Bootstrapping – Setting Up the Project, Core Data, and Unit Tests
-
How to Load Core Data
NSManagedObject
s in Tests - Introduce Repository and Its Collaborators for Tests
- Preparing the UI: Create View Controllers and Test Their Setup
- Use of Automated Tests
-
Finally, Add
Box
es to the StrictlyItem
-Centric Application - Functional Testing Helps Transition to Adding Real Features
-
How to Load Core Data
-
Part 2: Sending Messages Inside of the App
- Naive Event Handler
- Ports and Adapters
-
Part 3: Putting a Domain in Place
- Introducing Events in Place of Notifications
- Error Handling
-
Part 4: Using Core Data for Convenience
- How to Change the Project to Put Core Data at It’s Center
- Abstract from Core Data
- Core Data in the UI
-
Epilogue
- Learning Through Writing
- The Use of Cocoa Bindings
- Objectives Accomplished?
-
Part 1: Bootstrapping – Setting Up the Project, Core Data, and Unit Tests
-
Appendix
-
Further Reading
- Interesting Links
- Interesting Books
-
Bonus Articles
- Strong Reference Cycles
- Access Rights VS Laissez-faire Objective-C
- On Swift
- Adopting Swift 2.0 Errors
-
Further Reading
- Notes
Authors have earned$10,250,807writing, publishing and selling on Leanpub, earning 80% royalties while saving up to 25 million pounds of CO2 and up to 46,000 trees.
Learn more about writing on Leanpub
The Leanpub 45-day 100% Happiness Guarantee
Within 45 days of purchase you can get a 100% refund on any Leanpub purchase, in two clicks.
See full terms
Free Updates. DRM Free.
If you buy a Leanpub book, you get free updates for as long as the author updates the book! Many authors use Leanpub to publish their books in-progress, while they are writing them. All readers get free updates, regardless of when they bought the book or how much they paid (including free).
Most Leanpub books are available in PDF (for computers), EPUB (for phones and tablets) and MOBI (for Kindle). The formats that a book includes are shown at the top right corner of this page.
Finally, Leanpub books don't have any DRM copy-protection nonsense, so you can easily read them on any supported device.
Learn more about Leanpub's ebook formats and where to read them
Top Books
500 QUIZ MMG COMMENTATI
ALS Medicina Generale500 Quiz degli ULTIMI Concorsi di Medicina Generale (2014/2016/2017/2018/2019)
Riassunti e suddivisi per area con Griglia risposte vuota e Griglia risposte esatte Ministeriale
Commentati con link alla fonte per approfondimento e ausilio allo studio
C++20
Rainer GrimmC++20 is the next big C++ standard after C++11. As C++11 did it, C++20 changes the way we program modern C++. This change is, in particular, due to the big four of C++20: ranges, coroutines, concepts, and modules.
Functional Design and Architecture
Alexander GraninSoftware Design in Functional Programming, Design Patterns and Practices, Methodologies and Application Architectures. How to build real software in Haskell with less efforts and low risks. The first complete source of knowledge.
Atomic Kotlin
Bruce Eckel and Svetlana IsakovaFor both beginning and experienced programmers! From the author of the multi-award-winning Thinking in C++ and Thinking in Java together with a member of the Kotlin language team comes a book that breaks the concepts into small, easy-to-digest "atoms," along with exercises supported by hints and solutions directly inside IntelliJ IDEA!
R Programming for Data Science
Roger D. PengThis book brings the fundamentals of R programming to you, using the same material developed as part of the industry-leading Johns Hopkins Data Science Specialization. The skills taught in this book will lay the foundation for you to begin your journey learning data science. Printed copies of this book are available through Lulu.
Ansible for DevOps
Jeff GeerlingAnsible is a simple, but powerful, server and configuration management tool. Learn to use Ansible effectively, whether you manage one server—or thousands.
Algebra-Driven Design
Sandy MaguireA how-to field guide on building leak-free abstractions and algebraically designing real-world applications.
Thinking with Types
Sandy MaguireThis book aims to be the comprehensive manual for type-level programming. It's about getting you from here to there---from a competent Haskell programmer to one who convinces the compiler to do their work for them.
C++ Best Practices
Jason TurnerLevel up your C++, get the tools working for you, eliminate common problems, and move on to more exciting things!
Stratospheric
Tom Hombergs, Björn Wilmsmann, and Philip RiecksFrom Zero to Production with Spring Boot and AWS. All you need to know to get a Spring Boot application into production with AWS. No previous AWS knowledge required.
Top Bundles
- #1
Software Architecture for Developers: Volumes 1 & 2 - Technical leadership and communication
2 Books
"Software Architecture for Developers" is a practical and pragmatic guide to modern, lightweight software architecture, specifically aimed at developers. You'll learn:The essence of software architecture.Why the software architecture role should include coding, coaching and collaboration.The things that you really need to think about before... - #4
Cloud Architect: Transform Technology and Organization
2 Books
Architects don't just recite product names and features. They understand the options, decisions, and trade-offs behind them. They earn credibility and maintain authenticity by connecting the penthouse with the engine room. Get two essential books that redefine the role of the software and IT architect at one low price:37 Things One Architect... - #6
Linux Administration Complet
4 Books
Ce lot comprend les quatre volumes du Guide Linux Administration :Linux Administration, Volume 1, Administration fondamentale : Guide pratique de préparation aux examens de certification LPIC 1, Linux Essentials, RHCSA et LFCS. Administration fondamentale. Introduction à Linux. Le Shell. Traitement du texte. Arborescence de fichiers. Sécurité... - #7
The Python Craftsman
3 Books
The Python Craftsman series comprises The Python Apprentice, The Python Journeyman, and The Python Master. The first book is primarily suitable for for programmers with some experience of programming in another language. If you don't have any experience with programming this book may be a bit daunting. You'll be learning not just a programming... - #10
All the Books of The Medical Futurist
6 Books
We put together the most popular books from The Medical Futurist to provide a clear picture about the major trends shaping the future of medicine and healthcare. Digital health technologies, artificial intelligence, the future of 20 medical specialties, big pharma, data privacy, digital health investments and how technology giants such as Amazon...