Book Image

Building Apple Watch Projects

By : Stuart Grimshaw
Book Image

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.
Table of Contents (17 chapters)
Building Apple Watch Projects
About the Author
About the Reviewer

Interface Controllers

Now the SessionManager class is ready to test. To do this, we simply need to create the sharedInstance in the InterfaceController class which we will now implement.

In the project navigator, select InterfaceController.swift, and add the following code to the InterfaceController class's awakeWithContext method:

    override func awakeWithContext(context: AnyObject?) {

The compiler will complain about not knowing any such method, so we'll fix that now.

Add the following function to the InterfaceController class:

    func requestWeatherData() { //1
        WeatherSessionManager.sharedInstance.fetchWeatherData() { //2
            (data: NSData?, response: NSURLResponse?, taskError: NSError?) -> Void in
            if taskError == nil { //3
                do {
                    let jsonData = try NSJSONSerialization.JSONObjectWithData(