Xamarin allows you to build applications for multiple platforms by using a single set of code in a shared project. You can simultaneously build applications for devices that run on Android, iOS, and Windows platforms.
You can build your application using any of the following configurations:
Debug configuration: Use this configuration to debug your project after the build.
Release configuration: Use this configuration for the final release build and to publish your app to the App store. For iOS, use your distribution profile certificate.
To build your application for a single platform, perform the following steps:
On the Visual Studio standard toolbar, select Debug or Release from the Solutions Configurations list. By default, Debug is selected.
Right-click the project corresponding to the platform that you want to build, and then select Build.
The Output window displays the build details.
To build your application for multiple platforms, in Solution Explorer, right-click Solution ‘<project name>’, and click Build Solution.
The Output window displays the build details.