Book Image

RubyMotion iOS Development Essentials

By : Abhishek Nalwaya, Akshat Paul
Book Image

RubyMotion iOS Development Essentials

By: Abhishek Nalwaya, Akshat Paul

Overview of this book

RubyMotion is a revolutionary toolchain for iOS app development. With RubyMotion, you can quickly develop and test native iOS apps for the iPhone and iPad, combining the expressiveness and simplicity of Ruby with the power of the iOS SDK. "RubyMotion iOS Development Essentials" is a hands-on guide for developing iOS apps using RubyMotion. With RubyMotion, you can eliminate the complexity and confusion associated with the development of iOS applications using Objective-C. We'll begin from scratch. Starting by installing RubyMotion, we'll build ourselves up to developing an app that uses the various device capabilities iOS has to offer. What's more, we'll even learn how to launch your app on the App Store! We'll also learn to use iOS SDK classes to create application views. Discover how to use the camera, geolocation, gestures, and other device capabilities to create engaging, interactive apps. We'll develop stunning user interfaces faster with the XCode interface builder and make web apps by using WebView. We'll then augment applications with RubyMotion gems, doing more by writing less code and learn how to write test cases for RubyMotion projects. Finally, we'll understand the app submission process to push your app to Apple's App Store With "RubyMotion iOS Development Essentials", we will learn how to create iOS apps with ease. At the end of each chapter we will have a tangible and running app, which utilizes the concepts we have learnt in that chapter.
Table of Contents (19 chapters)
RubyMotion iOS Development Essentials
About the Authors
About the Reviewers

Location Manager – directions for apps

You must have observed that in many iOS applications, your current location is spotted automatically. With RubyMotion, we can easily use the location capabilities of your device with our application. There are two parts to this: the first is to find the device location and the second is to display it in our application.

iOS SDK contains various layers; one of them is the Core Services layer and a part of this layer is the Core Location framework. This framework uses the available hardware to determine a user's current position and where they are heading. Core Location provides us with coordinates, text strings, and number values instead of visual location information such as maps. Later in the chapter, we will also use Map Kit that will help us embed maps directly in our views using our knowledge of the Core Location framework.

Location Manager example

Let's create an application to demonstrate how we can use Location Manager with the RubyMotion application...