Book Image

Mastering Android Wear Application Development

By : Siddique Hameed, Javeed Chida
Book Image

Mastering Android Wear Application Development

By: Siddique Hameed, Javeed Chida

Overview of this book

Wearable technology is the future of mobile devices. It looks set to be a breakthrough technology, just like the iPad was before it. With the Apple Watch being widely regarded as a success, all eyes are now on Google to provide a similar device for its users. Keep your skills ahead of the competition and be one of the first to fully understand this powerful new trend. This book will give you a very solid understanding of the philosophy, thought process, development details, and methodologies involved in building well-designed, robust Android Wear applications. We cover the advantages and disadvantages of the wearable computing paradigm and provide a good foundational knowledge for you to build practical, real-world wearable apps. You will learn about the various tools, platforms, libraries, SDKs, and technology needed to build Android Wear apps. By the end of the book, you will be an expert in building Android wearable apps.
Table of Contents (18 chapters)
Mastering Android Wear Application Development
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Preface

The TodayWatchFaceService class


The TodayWatchFaceService class does all of the work, including setting the layout, reading the configuration values, and painting the UI for every tick of the second. It isn't realistic to discuss over 700 lines of code in this chapter. So, we'll look at important snippets taken from this class definition:

public class TodayWatchFaceService extends CanvasWatchFaceService { 
  @Override 
  public Engine onCreateEngine()  
  { 
    return new Engine(); 
  } 
  private class Engine extends CanvasWatchFaceService.Engine  implements DataApi.DataListener,  GoogleApiClient.ConnectionCallbacks,  GoogleApiClient.OnConnectionFailedListener  
  { 
    ... 
  } 
} 

Tip

As always, the sample source code for this chapter, and all others, is available at the GitHub link provided at the beginning of each chapter. The source code hosted at GitHub is our primary reference for a thorough understanding of how this service works.