XamarinDevDays/Demos/app-imagesearch-cogs/ImageSearch/ImageSearch.Droid/SquareImageView.cs

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

using Android.App;
using Android.Content;
using Android.OS;
using Android.Runtime;
using Android.Views;
using Android.Widget;
using Android.Util;

namespace ImageSearch.Droid
{
    public class SquareImageView : ImageView
    {
        public SquareImageView(Context context, IAttributeSet attrs)
            : base(context, attrs)
        {
        }

        public SquareImageView(Context context)
            : base(context)
        {
        }

        protected SquareImageView(IntPtr javaReference, JniHandleOwnership transfer)
            : base(javaReference, transfer)
        {
        }

        protected override void OnMeasure(int widthMeasureSpec, int heightMeasureSpec)
        {
            base.OnMeasure(widthMeasureSpec, heightMeasureSpec);
            this.SetMeasuredDimension(this.MeasuredWidth, this.MeasuredWidth);
        }
    }
}