MaterialEntryRenderer.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Text;

using Foundation;
using MaterialComponents;
using MaterialTextField;
using MaterialTextField.iOS;
using UIKit;
using Xamarin.Forms;
using Xamarin.Forms.Platform.iOS;

[assembly: ExportRenderer(typeof(EntryView), typeof(MaterialEntryRenderer))]
namespace MaterialTextField.iOS
{
    public class MaterialEntryRenderer:ViewRenderer<EntryView,TextField>
    {
        MaterialComponents.TextField textfield;
        MaterialComponents.TextInputControllerOutlined textfieldController;
        protected override void OnElementChanged(ElementChangedEventArgs<EntryView> e)
        {
            //base.OnElementChanged(e);
            if (Control == null)
            {
                textfield = new MaterialComponents.TextField();
                textfield.HorizontalAlignment = UIControlContentHorizontalAlignment.Center;
                textfield.VerticalAlignment = UIControlContentVerticalAlignment.Center;
                textfieldController = new MaterialComponents.TextInputControllerOutlined(textfield);
                textfieldController.CharacterCountMax = 5;
                textfieldController.CharacterCounter.CharacterCount(textfield);
                textfieldController.TextInput.Placeholder = "Enter the value";
                SetNativeControl(textfield);
            }

        }

        protected override void OnElementPropertyChanged(object sender, PropertyChangedEventArgs e)
        {
            base.OnElementPropertyChanged(sender, e);
        }
        private void Textfield_EditingDidBegin(object sender, EventArgs e)
        {
            var textfield = sender as TextField;
            
        }
    }
}