Custom Renderer for Rounded Border Editor (Android)

In Xamarin Form Project Create ExtendedEditor Class that Inherit the Editor Class

ExtendedEditor.cs

using System;
using System.Collections.Generic;
using System.Text;
using Xamarin.Forms;

namespace MeChatApp.Renderer
{
    public class ExtendedEditor :Editor
    {

    }
}

Then in Android Project Create the Class ExtendedEditorRenderer.cs  that Inherit the Editor Renderer

ExtendedEditorRenderer.cs

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using Android.App;

using Android.Content;

using Android.Graphics.Drawables;

using Android.OS;

using Android.Runtime;

using Android.Views;

using Android.Widget;

using MeChatApp.Droid.Renderer;

using MeChatApp.Renderer;

using Xamarin.Forms;

using Xamarin.Forms.Platform.Android;

[assembly: ExportRenderer(typeof(ExtendedEditor), typeof(ExtendedEditorRenderer))]

namespace MeChatApp.Droid.Renderer

{

  public  class ExtendedEditorRenderer : EditorRenderer

    {

        public ExtendedEditorRenderer(Context context) : base(context)

        {

        }

        protected override void OnElementChanged(ElementChangedEventArgs<Editor> e)

        {

            base.OnElementChanged(e);

            if (Control != null)

            {

                GradientDrawable gd = new GradientDrawable();

                gd.SetCornerRadius(50);

                gd.SetStroke(3, Android.Graphics.Color.Gray);

                Control.SetAutoSizeTextTypeWithDefaults(AutoSizeTextType.Uniform);

                Control.SetMinHeight(200);

                Control.SetBackground(gd);

            }

        }

    }

}

Now you can use that in Xaml Page

Tab1.xaml

<?xml version="1.0" encoding="utf-8" ?>

<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"

             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"

             xmlns:customControl="clr-namespace:MeChatApp.Renderer"

             x:Class="MeChatApp.Views.TabbedPages.Tab1" Title="Buzz"  Icon="menubuzz">

    <ContentPage.Content>

        <StackLayout>

                <customControl:ExtendedEditor AutoSize="TextChanges"   Placeholder="Write Something" />

        </StackLayout>

    </ContentPage.Content>

</ContentPage>