Book Image

Mastering iOS 12 Programming - Third Edition

By : Donny Wals
Book Image

Mastering iOS 12 Programming - Third Edition

By: Donny Wals

Overview of this book

The iOS development environment has significantly matured, and with Apple users spending more money in the App Store, there are plenty of development opportunities for professional iOS developers. However, the journey to mastering iOS development and the new features of iOS 12 is not straightforward. This book will help you make that transition smoothly and easily. With the help of Swift 4.2, you’ll not only learn how to program for iOS 12, but also how to write efficient, readable, and maintainable Swift code that maintains industry best practices. Mastering iOS 12 Programming will help you build real-world applications and reflect the real-world development flow. You will also find a mix of thorough background information and practical examples, teaching you how to start implementing your newly gained knowledge. By the end of this book, you will have got to grips with building iOS applications that harness advanced techniques and make best use of the latest and greatest features available in iOS 12.
Table of Contents (35 chapters)
Title Page
Copyright and Credits
Packt Upsell


  1. How does the CloudKit server notify apps about updates?

a) Background Fetch. b) Silent push notifications. c) It doesn't. Apps should ask for changes on launch.

  1. Which object do you send along with a fetch request to CloudKit so you only receive new changes?

a) A change token. b) A timestamp. c) The last object you received updates for.

  1. How does your code know whether a certain CKRecord is a movie, family member, or something else?

a) Through recordName. b) By checking what properties are available. c) Through recordType.

  1. What kind of data do you have to store alongside your objects in Core Data to be able to properly sync local data with CloudKit?

a) Their change tokens. b) The encoded CloudKit metadata. c) The zone they were retrieved from.

  1. What's a good place to store server change tokens?

a) Core Data. b) In an array. c) UserDefaults.

  1. Why is it smart to import CloudKit data on a background managed object context?

a) Because you don't know how long the import will take and you don't want...