Introduction to Cross-Platform Hybrid Mobile App Development
Cross-Platform App Development in C#
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Cross-Platform Mobile App Development Using C# By: Mobile Pundits
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Mobile Pundits is a full service provider company that provides strategic, design, development, enterprise, testing and outsourcing services to our clients. Our specialty in product to build awesome apps for mobile and web platforms. The Mobile Pundits team work, where entrepreneurs and start-ups come to grow and be surrounded by like-minded people who are building amazing technology products. With mobile application development turning mainstream, developers are progressively looking at cross-platform mobile application development tools to develop apps using C# to help reduce cost of development and improve time-to-market. Cross-platform mobile application development tools attempt to deliver these benefits by providing a neutral way of writing applications using their own particular language/dialect/tools that is then translated into the multiple forms required for deployment to each mobile platform. These slides learn how to build cross-platform mobile applications using technologies like HTML5, C#, PhoneGap, Adobe Flash Builder, Appcelerator Titanium and Applause.
Transcript of Cross-Platform App Development in C#
Cross-Platform Mobile App Development Using C#
By: Mobile Pundits
Overview According to the Global Developer Survey ’13 conducted by Telerik, over
5000 developers said that they developed apps using HTML5 in 2012 and 90% of them plan to do so in 2013.
Only 15% of developers said they would prefer to use a native-only approach.
What Platform Developers Wants?
Windows 8
Chrome OS
Firefox OS
Blackberry 10
Tizen
0 10 20 30 40 50 60 70
13%
36%
47%
66%
Development Difficulty
Blackberry and iOS are the most difficult platforms to develop for Windows 8 and Windows Phone 8 ranked as the easiest with Android falling in the middle.
Usage Apple’s iOS is the leading mobile OS in 30 countries. Canada-83.7%, United
States at 35.2%. Android accounts for more than 50% of the mobile web traffic with South
Korea at 78.3% and United States at 23.3%. Blackberry is the leading mobile OS in four countries, Dominican Republic,
57.1% and United States, 32.0% Symbian is the leading mobile OS in more than 100 countries, Nokia’s Symbian-
based phones are widely used in developing nations. However, it has almost no foothold in the US market.
“I think the biggest mistake that we made as a company is betting too much on HTML5 as opposed
to native” (Mark Zuckerberg, Sept. 2012)
HTML5 is indeed a great technology and is here to
stay
Promise: write once, run everywhere
JavaScript engines are getting faster, and you can
use JavaScript on client and server
But…
But HTML5 ?
You have to program in JavaScript
Write once, deploy everywhere not 100% true
UI paradigms are different on each platform
No access to native libraries
But HTML5 ?
Types of Apps Built Using HTML5
The most important modern web technologies right now include forms and validation, databases and flexible layouts (grids, flexbox, etc.)
But HTML5 ?
iOS Android Windows Phone
C# As A Multiple Platform Alternative
C# As a Multiplatform Alternative
Mono makes it possible to run C# code on the most
widespread platforms
All Windows variants
Linux
OSX
iOS
Android
Architecture Overview
C# As a Multiplatform Alternative
Plus a few nice additions
Playstation Mobile (PS VITA)
The Unity 3d Engine uses C# as a scripting
language (and Unity runs on Wii and WiiU, PS3,
XBOX, Flash)
PS4 will definitely run C# code
BSD, Solaris, Wii, PS3CPU architecture is not an issue: x86, x64, IA64,
PowerPC, SPARC, ARM…
Useful C# Libraries
TinyIoC / TinyMessenger
WaveEngine
MonoGame (XNA)
EmguCv (open CV)
NetTopologySuite
MVVMCross
SQLite-Net
ServiceStack
Log4Net
Many more
We have loC containers, MVVM, 2D and 3D game engines, ORM, Image processing library, Logging, Web services, GIS tools…
Native UI Layer
Key Promise Add a feature to the service layer and the other
layers do not have to change
Create Tasky with out shared data layer Introduce new cloud service that syncs list data
across devices after the fact
Presto: new cloud sync version How hard to deploy through the upgrade to
shared data.
Case Study Cross Platform Task Management
Familiar ground Evolves from iPhone, to Android, to shared data
with customer requirements.
Iterations Version 1 is iPhone Version 1.1 is Android Version 2.0 is Shared Tasks
Communication with backend server (i.e. Promise)
Version 2.1 is WinPhone
Multiplatform Tasky Solution
Advantages In Using C#
Linq / Lamda, Parallel Linq, Tasks
Memory management (no pointers, but leaks are still a problem)
Strongly typed implicit variable declaration
Extension methods
Strongly typed
Generics
WCF
Async/await
ReSharper(This applies only if using Visual Studio)
Tips & Tricks
Developing for iOS requires a Mac
Emulators are good but:
iOS provides an x86 simulator
Android provides both ARM and x86 emulators
iOS deployment still requires the usual certificates and
some Xcode
Memory leaks
Git support in TFS / Xamarin Studio
Conclusion
It all sounds great, isn’t it?
Sometimes is not straightforward as it seems
Relying on semi-closed platform
Specific platform knowledge is still a must: get ready
to learn some Java and objective-c
Mobile is not only coding, UI and UX are crucial for a
successful app
Mobile Developme
nt
Contact Us
www.mobilepundits.com
Mobile Pundits
