Placeholder text in Xamarin.Forms Editor

PlaceholderEditorRenderer.cs

using System;
using Cirrious.FluentLayouts.Touch;
using Foundation;
using UIKit;
using Xamarin.Forms;
using Xamarin.Forms.Platform.iOS;
 
[assembly: ExportRenderer(typeof(PlaceholderEditor), typeof(PlaceholderEditorRenderer))]
namespace EditorWithPlaceholder.iOS.Renderers
{
    public class PlaceholderEditorRenderer : EditorRenderer
    {
        private UILabel _placeholderLabel;
 
        protected override void OnElementChanged(ElementChangedEventArgs<Editor> e)
        {
            base.OnElementChanged(e);
 
            if (Element == null)
                return;
 
            CreatePlaceholderLabel((PlaceholderEditor) Element, Control);
 
            Control.Ended += OnEnded;
            Control.TextChanged += OnChanged;
        }
 
        private void CreatePlaceholderLabel(PlaceholderEditor element, UITextView parent)
        {
            _placeholderLabel = new UILabel
            {
                Text = element.Placeholder,
                TextColor = element.PlaceholderColor.ToUIColor(),
                BackgroundColor = UIColor.Clear,
                Font = UIFont.FromName(element.FontFamily, (nfloat)element.FontSize)
            };
            _placeholderLabel.SizeToFit();
 
            parent.AddSubview(_placeholderLabel);
 
            parent.SubviewsDoNotTranslateAutoresizingMaskIntoConstraints();
            parent.AddConstraints(
                _placeholderLabel.AtLeftOf(parent, 7),
                _placeholderLabel.WithSameCenterY(parent)
            );
            parent.LayoutIfNeeded();
 
            _placeholderLabel.Hidden = parent.HasText;
        }
 
        private void OnEnded(object sender, EventArgs args)
        {
            if (!((UITextView) sender).HasText && _placeholderLabel != null)
                _placeholderLabel.Hidden = false;
        }
 
        private void OnChanged(object sender, EventArgs args)
        {
            if (_placeholderLabel != null)
                _placeholderLabel.Hidden = ((UITextView) sender).HasText;
        }
 
        protected override void Dispose(bool disposing)
        {
            if (disposing)
            {
                Control.Ended -= OnEnded;
                Control.Changed -= OnChanged;
 
                _placeholderLabel?.Dispose();
                _placeholderLabel = null;
            }
 
            base.Dispose(disposing);
        }
    }
}

This has a bug!
When you set the text to editor, placeholder is not removed because it doesn't fire "Changed" event.
Please fix it!

Thanks.