8. Adding Watch Support | Swift Essentials (Second Edition)

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Swift Essentials (Second Edition) - Second Edition

By : Alex Blewitt

5 (3)

Swift Essentials (Second Edition)

5 (3)

By: Alex Blewitt

Overview of this book

Swift was considered one of the biggest innovations last year, and certainly with Swift 2 announced at WWDC in 2015, this segment of the developer space will continue to be hot and dominating. This is a fast-paced guide to provide an overview of Swift programming and then walks you through in detail how to write iOS applications. Progress through chapters on custom views, networking, parsing and build a complete application as a Git repository, all by using Swift as the core language

Preface

Preface

What this book covers

What you need for this book

Who this book is for

Trademarks

Conventions

Reader feedback

Customer support

Free Chapter

1. Exploring Swift

1. Exploring Swift

Open source Swift

Getting started with Swift

Conditional logic

Iteration

Functions

Command-line Swift

Summary

2. Playing with Swift

2. Playing with Swift

Getting started with playgrounds

Displaying objects with Quick Look

Advanced techniques

Playgrounds and documentation

Limitations of playgrounds

Summary

3. Creating an iOS Swift App

3. Creating an iOS Swift App

Understanding iOS applications

Creating a single-view iOS application

Swift classes, protocols, and enums

Creating a master-detail iOS application

Summary

4. Storyboard Applications with Swift and iOS

4. Storyboard Applications with Swift and iOS

Storyboards, scenes, and segues

Adding a navigation controller

Swift and storyboards

Using Auto Layout

Summary

5. Creating Custom Views in Swift

5. Creating Custom Views in Swift

An overview of UIView

Creating new views with Interface Builder

Creating new views by subclassing UIView

Custom graphics with drawRect

Custom graphics with layers

Summary

6. Parsing Networked Data

6. Parsing Networked Data

Loading data from URLs

Parsing JSON

Parsing XML

Direct network connections

Summary

7. Building a Repository Browser

7. Building a Repository Browser

An overview of the GitHub API

Repository browser project

Creating the client

Accessing repositories from view controllers

Summary

8. Adding Watch Support

8. Adding Watch Support

Watch applications

Creating watch interfaces

Responding to user interaction

Best practice for watch applications

Summary

A. References to Swift-related Websites, Blogs, and Notable Twitter Users

A. References to Swift-related Websites, Blogs, and Notable Twitter Users

Language

Twitter users

Blogs and tutorial sites

Meetups

Afterword

Index

Index

Customer Reviews

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Summary

Watch applications can run code in the same way that they run on an iOS device although the way in which they are uploaded to the watch is slightly different. Running code on the simulator is very different to running on a real device; the network and processor are much more limited than will be expected for a desktop class machine (or even an iOS device). As a result, testing on a real device is essential in order to test the full experience.

This chapter presented how watch applications and extensions are built, how they are packaged in the form of watch extensions and watch apps, and how they can share code with a parent application to avoid code duplication. The watch interface demonstrated how to transition between screens using segues to implement a watch extension of the iOS application that was created in the previous chapter.

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83

Tech Concepts

36

Programming languages

73

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Swift Essentials (Second Edition)

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