Mobility is becoming increasingly important for many companies. The markets for mobile applications have been growing tremendously the last decade. It is therefore of great interest to reduce the costs of development and maintenance of these applications. When developing native applications for multiple platforms some parts of the code will likely implement the same functionality. This functionality is then implemented in dierent programming languages, for dierent platforms. Functionalities that are typically the same on all platforms are network communication, data parsing and business logic. These functionalities can account for a large part of the code when developing large and complex applications. Duplication of the code, for these functionalities, could be avoided if common functionality could be extracted from the applications and put in a shared code base. The aim of this project is to investigate possible solutions to the problem of code duplication in the case of a specic business application, developed for iOS and Android. It consists of a mobile client which performs some transformation of data acquired from a business system and presents it in the native UIs. This thesis rst discusses the requirements and constraints which are inferred from the application type and the company wishing to apply cross-platform development. It also maps existing cross-platform development methods for this type of application and investigates to which extent the dierent cross-platform development methods full the requirements. Finally the most suitable method is used in a practical context. The objectives of this project are to provide the company with a recommendation of a method as well as a prototype proving the concept of this method. This project will focus on possible solutions for mobile business applications with native UIs. The conclusion of the project is that native C++ is the most suitable method for this type of application. It fulls all requirements, but further research is needed regarding performance.

1. Cross-Platform Development
for Mobile Applications
Anna Troedsson Almér
David Karlsson
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2. Mobile business applications
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3. Motivation
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4. Name: Link: Description:
Titanium http://www.appcelerator.com/products/ HTML+JavaScript
jQuery Mobile http://jquerymobile.com HTML5
Particle code http://www.particlecode.com/features/overview/ aquired by appcelerator, HTML
Unity3d http://unity3d.com/unity/multiplatform/ Gaming, footprint
CoronaSDK http://www.coronalabs.com/products/corona-sdk/ LUA
Marmalade http://www.madewithmarmalade.com/
marmaladesdk/supported-platforms
native CPU instructions
Xamarin http://xamarin.com generates native
MOAI http://getmoai.com LUA
Gideros http://www.giderosmobile.com/ LUA
Cappuccino http://www.cappuccino-project.org Javascript
PhoneGap http://phonegap.com HTML
MoSync http://www.mosync.com HTML
Rhomobile http://www.motorola.com/Business/US-EN/
Business+Product+and+Services/Software+and
+Applications/RhoMobile+Suite
Ruby,HTML
WidgetPad widgetpad.com HTML
Kivy http://kivy.org/#home Scripting, python
PyMob http://pyzia.com generates native
XMLVM http://xmlvm.org/android/ translate dalvik to ios
Adobe AIR http://www.adobe.com/se/products/air/
features.html
http://www.adobe.com/devnet/flash/articles/
app_store_guide.html (app store OK)
NDK http://developer.android.com/tools/index.html
J2ObjC
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5. Mobile Application
Development Models
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6. Mobile Application
Development Models
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7. Mobile Application
Development Models
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8. Mobile Application
Development Models
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9. Mobile Application
Development Models
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10. Mobile Application
Development Models
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11. Requirements
Executable application
Approved for markets
Existing development environment
Platform specific UI
HTTP+Cache
Filesystem+DB
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12. Mobile Application
Development Models
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13. Mobile Application
Development models
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14. C++ and NDK
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15. C++ and NDK
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16. C++ and NDK
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17. Titanium
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18. Titanium
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19. Xamarin
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20. Xamarin
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21. XMLVM
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22. XMLVM
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23. Prototype session 1
Basic functionality and
native UI
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24. Prototype session 1
compability with
natively written UI
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25. Prototype session 1
Performance Results
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26. Prototype with NDK C++
VS
Platform Specific Implementation
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27. Prototype with NDK C++
POCO C++ library
JSON
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28. Prototype with NDK C++
Wrapping Logic and Types, Minimal
Key:
C++ Shared Code
C++ Wrapper for Android
Android Java
Activities
C++
Wrapper
Type Wrappers
C++ Logic C++ Types
iOS Objective-C
ViewControllers
C++ Java
Objective-C
Objective-C++
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29. Prototype with NDK C++
Wrapping Logic and Types, Structured separation
Key:
C++ Shared Code
C++ Wrapper for Android
Android Java
Activities
C++
Wrapper
Type Wrappers
C++ Logic C++ Types
C++ Wrapper for iOS (Objective-C++)
iOS Objective-C
ViewControllersType Wrappers
C++
Wrapper
C++ Java
Objective-C
Objective-C++
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30. Prototype with NDK C++
JSON Parser
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31. Prototype with NDK C++
Performance Results JSON Parser
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32. Prototype with NDK C++
HTTP
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33. Prototype with NDK C++
Cache
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34. Prototype with NDK C++
Cache
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35. Prototype with NDK C++
Persistent Cache
Format:
Loading the cache file:
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36. Prototype Verification
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37. Prototype Verification
1: Describe behaviour in plain text
2: Write a step definition in Ruby
3. Fix app code to make the step pass
4. Run again and see the step pass
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38. Prototype Verification
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39. Conclusion
Titanium
Javascript
Simple UIs
Xamarin
C#
Separate UIs
NDK
C++
Native UIs
Distributable
Device capabilities
Performance
Testability
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40. Thank You!
Categories from:
Run Everywhere!* Cross-Platform Mobile Development, *some restrictions apply
http://www.meetup.com/MoMoa2/events/86722502/
by Brian Genisio Presentation at Mobile Monday Ann Arbor
Xamarin: http://www.xamarin.com by Xamarin Inc.
Titanium: http://www.appcelerator.com/platform/titanium-sdk by Appcelerator Inc.
XMLVM: http://xmlvm.org/overview by XMLVM
NDK: http://developer.android.com/tools/sdk/ndk by Android
Poco C++: http://pocoproject.org by Applied Informatics Software Engineering GmbH
Calabash: http://calaba.sh by Less Painful
Mobile Business Applications:
http://www.sogeti.se/sv/Vara-tjanster/Tjanster/Mobilitet/App-utveckling/
by Sogeti
Our Repository: https://bitbucket.org/devdavidkarlsson/sogeti-masterthesis-crossplatformmobiledevelopment
https://github.com/devdavidkarlsson/Sogeti-MasterThesis-CrossPlatformMobileDevelopment
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