Creating HTML5 Applications with

jQuery Mobile, Ruby and Database.com

Developer Track

Jeff Douglas, Senior Technical Consultant, Appirio

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Jeff Douglas

Senior Technical Consultant

Appirio

Platform Architect

CloudSpokes

Co-Author, “Salesforce Handbook”

@jeffdonthemic

http://blog.jeffdouglas.com

What to Walk Away With

Strategies for building mobile applications with the Force.com

platform.

Best practices with Force.com mobile application with Ruby on

Rails and Database.com.

A deep love and appreciation for the Force.com platform.

Agenda

Mobile development strategies

Salesforce Mobile SDK

The “Mobile Chow Finder” application

Technology stack overview

Database.com

Ruby on Rails

jQuery Mobile

Databasedotcom gem

Heroku

Demo (aka “Show me the code!”)

Native vs. HTML5 vs. Hybrid

Native Applications

Pros

Feature rich, look & feel and performance

Objective-C & Java

Easy to find applications

Easy to monetize applications

Cons

Limited to single platform

Objective-C & Java

Distribution via Apple App Store and Google Play

HTML5 Applications

Pros

A "write one, run many" solution that is cross platform and cross device

Low barrier to entry - HTML5, CSS3 & JavaScript skills

Cons

Not up to par with the native app experience

jQuery Mobile

Sencha Touch

jQTouch

Hybrid Applications

Pros

Application framework that enables you to build natively installed applications using HTML,

CSS and JavaScript.

Supports accelerometer, camera, compass, contacts, geolocation, sotification, storage and

more.

PhoneGap Build – no SDKs to install! Spits out binaries for 7 different mobile platforms

Discover and monetize via App Store and Play

Cons

PhoneGap: Doesn’t look native

Titanium: Platform specific API via JavaScript for Android & iOS. No HTML or CSS support.

What Can You Build with PhoneGap?

Salesforce.com Mobile SDK

Suite of open-source technologies for iOS, Android, HTML5 and

hybrid applications

Sample applications, quick start and webinars

Mobile components for Visualforce

Easy to build jQuery Mobile Visualforce applications

Building the “Mobile Chow Finder”

HTML5 application for service

members to find the local “Chow

Hall”

Database.com

jQuery Mobile

Ruby on Rails

Geolocation

Store favorites using LocalStorage

jQuery Mobile - View

Super easy! Uses web standard HTML5, CSS3, and JavaScript

to easily develop user interfaces for mobile web apps

Framework built on top of jQuery – EVERYONE loves jQuery!

Provides custom events to detect mobile and touch specific

actions like tap, tap-and-hold, swipe, and orientation change (i.e.

rotating the device).

We are just building web pages!!

Database.com - Model

A secure, cloud database for building social and mobile enterprise apps.

Slimmed down version of Force.com database (essentially the Setup section)

Only custom objects (no CRUD UI)

Apex classes, triggers & workflow

Identity & user management plus role and profile security

Oauth2 & REST baked in

Utilize your favorite Force.com tools

Pricing based upon user licenses, records and transactions

Ruby on Rails - Controller

Great for quickly building social and mobile applications

Leverage thousands of open source packages and frameworks to build amazing

applications.

Databasedotcom Ruby gem

Open source ruby client for accessing REST and Chatter APIs

Supports OAuth2

ActiveRecord syntax

Should be called ‘Forcedotcom’ gem

Host the application on Heroku – WINNING!

Let’s Code this Sucker Up!

Recap – What Did We See?

Strengths and weaknesses of mobile application development

strategies. When to use one versus the other.

The Salesforce.com Mobile SDK embraces all three

development approaches.

Advantages of using Database.com as a data store.

How to quickly and easily develop HTML5 mobile applications

using open source technologies.

Best practices for developing mobile applications.

Additional Resources

Force.com Mobile SDK http://wiki.developerforce.com/page/Mobile_SDK

HTML5 vs Native: The Mobile App Debate http://www.html5rocks.com/en/mobile/nativedebate

Mobile Framework Comparison https://spreadsheets.google.com/pub?key=0AsTInFQpmXDNdEdJU0ZNNGx3dDA3aXAxV3lXYWhXVHc

Jeff Douglas

Senior Technical Consultant, Appirio,

@jeffdonthemic

http://blog.jeffdouglas.com