Custom Android Gallery in MonoDroid: one-view-at-a-time scrolling

MyGallery.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;

/*
Source:
  http://stackoverflow.com/questions/4582123/creating-a-custom-gallery-overriding-onfling

Usage:
  <net.conceptdevelopment.monodroid.mygallery android:id="@+id/examplegallery"
           android:layout_width="fill_parent"
           android:layout_height="wrap_content"
           />
*/

namespace net.conceptdevelopment.monodroid
{
    public class mygallery: Gallery, IJavaObject
    {
        public mygallery(Context ctx)
            : base(ctx)
        { }

        public mygallery(IntPtr handle)
            : base(handle)
        { }

        public mygallery(Context ctx, IAttributeSet attrs)
            : base(ctx, attrs)
        { }

        private bool isScrollingLeft(MotionEvent e1, MotionEvent e2)
        {
            return e2.GetX() > e1.GetX();
        }

        public override bool OnFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY)
        {
            //int kEvent;
            Android.Views.Keycode kCode;
            if (isScrollingLeft(e1, e2))
            { //Check if scrolling left 
                kCode = Android.Views.Keycode.DpadLeft;
            }
            else
            { //Otherwise scrolling right
                kCode = Android.Views.Keycode.DpadRight; 
            }
            OnKeyDown(kCode, null);
            return true;
        }
    }
}