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

Core Data – manage your data

Sometimes applications are required to save and manipulate user data. iOS SDK provides a framework for this purpose known as Core Data.

The Core Data framework provides comprehensive and automated solutions related to an object's life cycle and its searching and persistence features. It can retrieve and manipulate data purely on an object level without having to worry about the details of storage and retrieval.

With Core Data, data can be handled using higher-level objects indicating entities and their relationships. Core Data interfaces directly with SQLite, separating the developer from the underlying SQL.

So does it mean Core Data is a database? No; Core Data is not a database and the best example of this is that Core Data can be used totally in memory without any form of persistence. Then is Core Data similar to an ORM such as Active Record or Hibernate? No; Core Data is an object graph manager with life cycle, searching, and persistence features. With Core...