Remove done button over keyboard in Xamarin.Forms

I need to get text from user as input. I use editor because the input can be multiline. However when user focus the editor done button over keyboard is shown. I need to remove it. The done button does not show when I use entry instead of editor but i need to get input as multiline. Can I remove done button or can I use entry as multiline?

I created a custom Editor Renderer for ios and remove done button successfully. Here is my code:

[assembly: ExportRenderer(typeof(CustomEditor), typeof(CustomEditorRenderer))]
namespace ProjectName.iOS
{
    public class CustomEditorRenderer : EditorRenderer
    {
        protected override void OnElementChanged(ElementChangedEventArgs<Editor> e)
        {
            base.OnElementChanged(e);
            this.Control.InputAccessoryView = null;
        }
    }
}