7. Plot Buddy – All about Location | Building Apple Watch Projects

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Table Of Contents

Building Apple Watch Projects

By : Stuart Grimshaw

Building Apple Watch Projects

By: Stuart Grimshaw

Overview of this book

With Apple’s eagerly anticipated entry into the wearable arena, the field is wide open for a new era of app development. The Apple Watch is one of the most important technologies of our time. This easy-to-understand book takes beginners on a delightful journey of discovering the features available to the developer, right up to the completion of medium-level projects ready for App Store submission. It provides the fastest way to develop real-world apps for the Apple Watch by teaching you the concepts of Watch UI, visual haptic and audio, message and data exchange between watch and phone, Web communication, and finally Visual, haptic as well as audio feedback for users. By the end of this book, you will have developed at least four fully functioning apps for deployment on watchOS 2.

Preface

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Free Chapter

1. Exploring the New Platform

1. Exploring the New Platform

Wide open future

A closer look at the watch

A look under the hood

One App, four interfaces

User Input Hardware

Extension of the iPhone, but more

Summary

2. Hello Watch

2. Hello Watch

Setting it all up

Looking over the project

Adding some content on screen

Give the UI some visual appeal

Adding some animation magic

Getting user input

Ideas for self study

Summary

3. C-Quence – A Memory Game

3. C-Quence – A Memory Game

Plan the app

Setting up the project

GameLogic

Interface Controller

Summary

4. Expanding on C-Quence

4. Expanding on C-Quence

Implementing the methods

Testing and tweaking

Communicating with the phone

Summary

5. On Q – A Productivity App

5. On Q – A Productivity App

Download the project template

Plan the Watch app

Setting up the project

Writing the code

Testing with the iPhone and real data

Challenges for further growth

Summary

6. Watching the Weather

6. Watching the Weather

Adding a Glance to an app

Setting up the project

Getting the data

Interface Controllers

Glances

Challenges for expansion

Summary

7. Plot Buddy – All about Location

7. Plot Buddy – All about Location

Planning the app

Setting up the project

Data structure

Getting location data

The Interface Controllers

WatchConnectivity

Final test

Challenges for expansion

Summary

8. Images, Animation, and Sound

8. Images, Animation, and Sound

Adding an icon

Animation

Audio and Video

Summary

9. Wear It, Test It, Tweak It, Ship It

9. Wear It, Test It, Tweak It, Ship It

Installation on a physical device

Testing in the field

App Store submission process overview

Preparing for submission

Summary

10. This Is Only the Beginning

10. This Is Only the Beginning

Using animation to the fullest

Making use of code snippets

Post release maintenance

Expanding your skills

Tools

Sites to be aware of

Stay in touch

Summary

One last word from the author

Index

Index

Data structure

Firstly, we define a typealias for the data structure added to both the watch and the phone targets, that will hold the location data, by following these steps:

Shared constants

In the downloaded project, create a new Swift file, name it SharedConstants.swift, being sure to select both targets, Plot Buddy and Plot Buddy WatchKit Extension, as illustrated here:

Select this file in the project navigator and replace the import statement with the following code:

Import WatchKit

typealias LocationSet = [CLLocation] //1

let ApplicationContextDataKey = "Data" //2

Our LocationSet data structure is nothing more than an array of CLLocation objects, which is the type returned by our calls to the Core Location framework.
For the sake of safety, we define a String constant for use as the Key to the data object passed from watch to phone in the ApplicationContext.

CONTINUE READING

83

Tech Concepts

36

Programming languages

73

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