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

Chapter 15

  1. Which devices support HealthKit?

c) The iPhone and Apple Watch.

  1. What's the difference between a quantity sample and a category sample?

a) Quantity samples have an arbitrary value, while categories use enums to represent their value.

  1. How can you check whether you have read access to a certain health metric?

c) To protect the user's privacy, there is no way to be sure.

  1. How can you filter data that is returned from a HealthKit query?

a) With predicates.

  1. What permissions do you need to use a workout route builder?

c) You need permission for both the builder and the workouts.

  1. What do you need to keep in mind when you associate location data with a workout route?

b) You should make sure the location data is very accurate.