Progress Ring in xamarin forms

The Xamarin ProgressBar is a control that indicates the progress of a task with customizable visual. It includes features to visualize progress in rectangular and circular shapes, determinate and indeterminate states, segments, and customized ranges in different colors. It also supports animation.

 

In your iOS project you have to call ProgressRingRenderer.

 

Also visit this article link:

https://www.c-sharpcorner.com/article/how-to-create-a-progressbar-and-progressring-in-xamarin-android-app-using-visual/