Book Image

Apple Watch App Development

By : Steven F. Daniel
Book Image

Apple Watch App Development

By: Steven F. Daniel

Overview of this book

With the increasing amount of new wearable devices hitting the market, wearables are the next wave of mobile technology. With the release of Apple's WatchKit SDK, a whole new world of exciting development possibilities hasopened up. Apple Watch App Development introduces you to the architecture and limitations of the Apple Watch platform, followed by an in-depth look at how to work with Xcode playgrounds. Here, we'll introduce you to the Swift programming language so you can quickly begin developing apps for the Apple Watch platform with the WatchKit framework and the Xcode Development IDE. We then discuss more advanced topics such as Notifiations, Glances, Closures, Tuples, Protocols, Apple pay, and using Swift playgrounds, with each concept backed up with example code that demonstrates how to properly execute it. We also show you how to package and deploy your Watch application to the Apple AppStore. By the end of this book, you will have a good understanding of how to develop apps for Apple Watch platform using the WatchKit framework and Swift 2.0.
Table of Contents (19 chapters)
Apple Watch App Development
About the Author
About the Reviewer

Design considerations when using Taptic Engine

According to Apple, Taptic Engine is an electromagnetic linear actuator, which is basically a small electronic motor that controls a magnetic field to produce haptic feedback.

Haptic feedback is basically a series of small taps that notifies you in response to different actions. An example of this would be if you were iterating through items within an array and wanted to be notified once you scrolled to the end of the list, you could send a .Click haptic for the table instance within the WatchKit extension.

Whenever you design your apps to include support for playing haptics using Apple Watch Taptic Engine, there is no ability to play more than one haptic at the same time, and there is a delay between each one that can be played.


For more information on Apple Watch Design Guidelines, refer to the Apple Developer documentation at

In the next section, we will look...