In this article, you will learn how to Use Activity Indicator On Popup Window in Xamarin iOS, using Xamarin Studio. Introduction Xamarin is a platform to develop cross-platform and multi-platform apps (for example, Windows phone, Android, iOS). In Xamarin platform, the code sharing concept is used. In Xamarin Studio, Visual Studio is also available. Prerequisites Xamarin Studio. Xcode. The steps given below are required to be followed in order to Use Activity Indicator On Popup Window in Xamarin iOS, using Xamarin Studio. Step 1 Go To Xamarin Studio. Click New Solution—> select iOS—>select App--> Choose single View App. Afterwards, click Next. Step 2 In this step, configure your app. Give the app name (Ex:sample), Organization Identifier. Afterwards, click Next. step 3 In this step, give your project name (Ex: Sample) and solution name (Ex: Sample). Give the path of your project. Afterwards, click Create. Step 4 Subsequently, go to the solution.