Cross-Platform Mobile App Development with HTML5 S Balamurugan, Lead Architect 24 Mar 2012
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Cross-Platform Mobile App Developmentwith HTML5
S Balamurugan, Lead Architect
24 Mar 2012
Agenda� Cross platform mobile app development
� Introduction
� Challenges
� Industry solution
� HTML 5 features for mobile apps
� Canvas 2D
� Geolocation
© 2012 Unisys Corporation. All rights reserved. 2
� Web DB
� HTML 5 app development using PhoneGap
� Write Once Deploy Many
� Architecture
� Enterprise mobile enablement
� MEAP introduction
� Cloud based mobile app development (PaaS)
� Best practices
Mobile Technology Stack
Mobile Apps
Web Apps, Native Apps, Hybrid Apps, …
Mobile Programming Languages, APIs & Tools
Objective C, Java, HTML5, C# .NET, …
© 2012 Unisys Corporation. All rights reserved. 3
Mobile Operating System
iOS, Android, WP7, BlackBerry, …
Network Connectivity
CDMA, GSM, WiFi, …
Mobile Device Models
iPhone, iPad, Samsung Galaxy Tab, HTC, Acer, …
Mobile App Development: Challenges
� Operating System Fragmentation
� Different Technologies
© 2012 Unisys Corporation. All rights reserved. 4
� Improved supportability and maintainability
� Diversified Device Models
Mobile App Development Environments
Mobile OSOperating System
Software / IDEsProgramming language
iOS Mac only Xcode Objective C
AndroidWindows / Mac /
Linux
Eclipse, Android Dev
Tool (ADT)Java
Windows Phone 7 Windows Visual Studio 2010 C#, .Net, Silverlight
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BlackBerry Windows Eclipse /JDE, Java Java
Mobile App Development: Challenges
� Lack of developers with multiple platform skills
� Source code maintenance / product management
� Development excellence and software re-use
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� Improved supportability and maintainability
� Development excellence and software re-use
Cross-Platform App Development
� Web technologies like HTML5, CSS3 and JavaScript
� Enable access to device features using JavaScript APIs
� Thin native app displays web content using WebKit
� Distributed through app stores / market places
� Popular framework - PhoneGap
Hybrid apps
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� UI benefits of native app; maintainability of web app
� Limited to feature set of chosen framework
� Popular framework - Titanium Appcelarator
Interpreted apps
Web sites
� Mobile websites using HTML5
What is HTML5?
� HTML5 is the next generation of HTML
� Work in progress
� Major browsers support many of HTML5 elements and APIs
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� HTML5 is not yet an official standard, and no browsers have full HTML5 support
Rules for HTML5
� New features should be based on HTML, CSS, DOM, and JavaScript
� Reduce the need for external plug-in (like Flash)
� Better error handling
© 2012 Unisys Corporation. All rights reserved. 9
� More mark up to replace scripting
� HTML5 should be device independent
� The development process should be visible to the public
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