Build iOS, Android and Windows Apps using C# in Visual Studio

Xamarin  created a powerful tool, an efficient and delightful workflow and the power to create the best user experiences which uses C# a modern programming language to develop mobile apps for all three popular platforms. Now windows users also can develop iOS apps using visual studio.

It was a big problem for mobile developers to create app for different platforms with different languages and architecture, but with the Xamarin's new powerful tools developers can easily create applications for all three major mobile operating systems in a single project.

"Xamarin is the only platform that allows you to build native iOS and Android apps in Visual Studio. Use the tools, libraries, and design patterns you already know and love, including TFS and ReSharper."

You can download this tool from Xamarin website (https://xamarin.com/platform) , this tool is not fre, you need to pay for it. for MSDN subscribers it cost $1,399 per year per developer, but you can download a 90 day trial for free.

As per Xamarin you can use your existing Java code, frameworks, and custom controls in your Xamarin app using its automatic binding generator. It includes excellent .NET alternatives to your favorite Java libraries, but bindings give you the best of both worlds.

If we see the above figure ,we can see that there are four projects created. There is one common project for all the three mobile platform. So users can write a common code and deploy the app for the three different platforms.

There are lot of sample code and resources are available on the website, you can explore and learn to build mobile apps easily using this tool.'

Useful Links
1. http://xamarin.com/platform
2. http://developer.xamarin.com/
3.http://xamarin.com/resources/webinars