Book Image

Rhomobile Beginner's Guide

By : Abhishek Nalwaya
Book Image

Rhomobile Beginner's Guide

By: Abhishek Nalwaya

Overview of this book

The four Rhomobile products – Rhodes, Rhosync, RhoHub, and Rhogallery – provide a complete toolkit for creating a mobile application. Rhomobile is cross-platform and so allows you to build your application for many different types of smartphone – including iPhone and Blackberry – just with a single codebase. This makes it the most preferred and quickest way of developing mobile apps. As you create a native Rhomobile application, you can use the built-in device features such as GPS, Push, and Camera, all with offline capabilities.Rhomobile Beginner's Guide is filled with practical examples to help you to create a mobile application from scratch. You can choose on which operating system to build, as well as for which smartphone to develop your application, giving you the freedom to create a customized mobile application quickly and easily.Once you have learned how to install Rhomobile on Windows, Mac, or Linux, you will create a simple application, which will be used to explore the products of Rhomobile one by one. Things really get going when you write unit test cases for your application before deploying it to the server and making builds for your chosen Smartphone. You will learn about the different aspects of Rhomobile, starting with Rhodes 3, which helps you to build a native mobile application. Rhosync 2.1 carries out the offline device capabilities and RhoHub deploys the code on the server and creates a build for the different smartphones. Rhomobile Beginner's Guide gives you the freedom to create a mobile web application on the platform of your choice, for the smartphone of your choice.
Table of Contents (17 chapters)
Rhomobile Beginner's Guide
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Getting ready for Metadata


To get started with Metadata we have to understand how it works and how to install the prerequisites. Following are the steps that tell us how metadata work:

  • Metadata is first defined in a source adapter by implementing an adapter method metadata that returns a JSON structure. The JSON structure may contain a hash of hashes and can also have child elements defined as arrays of hashes. The key in each object can be any string; however, there are some reserved labels, which are used by certain elements.

  • The metadata for an adapter is synchronized to Rhodes along with the rest of the adapter dataset. Metadata is called before the query method in the SyncEngine workflow, so you can tailor your query method based on metadata.

  • Rhodes uses the synchronized metadata definition to render views at runtime. These views are driven by the metadata definition, so when a new definition is synchronized, the views will automatically reflect the changes.

To use this powerful feature...