Mobile Application Tools in VS:

•          Native apps with .NET (XAMARIN)
•          Hybrid apps with JavaScript (CORDOVA)
•          Native apps with C++

XAMARIN overview:

XAMARIN is a tool which is used to write native Android, iOS, and Windows apps with native user interfaces and share code across multiple platforms, including Windows and macOS with C# codebase.

Configure XAMARIN tool in Visual Studio:

We will see how to configure XAMARIN tool here with simple steps,

Step 1 - Add Xamarin to existing VS 2015:

• Go to control panel and select Programs and Features.
• Select Microsoft Visual Studio and click Change button.
• Click on Modify button in Visual studio installer.
• In the Features tab, scroll down to Cross Platform Mobile Development and click the checkbox next to C#/.NET (Xamarin) as below,

Step 2 - Verify XAMARIN installation: 

• Verify Xamarin options on click of Help and hover over the Xamarin.

• Verify Xamarin options from Help à About Microsoft Visual Studio.

Step 3 - Configure XAMARIN SDK in Visual Studio:

• Choose Tools à Android à Android SDK Manager.

• Choose the required tools to install or update.

Step 4 - Verify Installed Development Kits required:

Step 5 - Download and Install Android Studio: (Optional platform for building Android apps)

Download Location for Android Studio:

                  https://developer.android.com/studio/index.html

Installation guidelines for Android Studio:

https://developer.android.com/studio/install.html

         Steps to Set up Android Studio:

Step 6 - Create Sample Xamarin App:

• Click File à New à Project.

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• Choose Android à Blank App,
• Choose name and location then click Ok

• Please refer the link for sample application build and deployment.