Circular Button Using Xamarin (Custom Renderer)

ButtonRenderer.cs

class CircularButtonRender : Xamarin.Forms.Platform.Android.ButtonRenderer
{
  private GradientDrawable _NormalState, _PressedState;
 
  protected override void OnElementChanged(ElementChangedEventArgs<Xamarin.Forms.Button> e)
  {
    base.OnElementChanged(e);
 
    if (Control != null)
    {
      var button = e.NewElement;

      // Create a drawable for the button's normal state
      _NormalState = new Android.Graphics.Drawables.GradientDrawable();
      _NormalState.SetColor(button.BackgroundColor.ToAndroid());
      _NormalState.SetStroke((int)button.BorderRadius, button.BorderColor.ToAndroid());
      _NormalState.SetShape(ShapeType.Oval);

      _PressedState = new Android.Graphics.Drawables.GradientDrawable();
      _PressedState.SetColor(button.BackgroundColor.ToAndroid());
      _PressedState.SetStroke((int)button.BorderRadius, button.BorderColor.ToAndroid());
      _PressedState.SetShape(ShapeType.Oval);

      // Add the drawables to a state list and assign the state list to the button
      var sld = new StateListDrawable();
      sld.AddState(new int[] { Android.Resource.Attribute.StatePressed }, _PressedState);
      sld.AddState(new int[] { }, _NormalState);
      Control.SetBackground(sld);
    }
  }
}