[Activity(Label = "My Activity")]
    public class SearchActivity : Activity
    {
        protected override void OnCreate(Bundle bundle)
        {
            base.OnCreate(bundle);
            this.SetContentView(Resource.Layout.Hostlayout);

            var layout = this.FindViewById<LinearLayout>(Resource.Id.HomeImageContent);

            Handler hander = new Handler();

            List<string> urlSource = new List<string>();

            foreach (var item in urlSource)
            {
                var address = item;
                var taks = System.Threading.Tasks.Task.Factory.StartNew(() =>
                {
                    Runnable run = new Runnable(() =>
                    {
                        Java.Net.URL url = new Java.Net.URL(address);
                        var map = Android.Graphics.BitmapFactory.DecodeStream(url.OpenStream());

                        ImageView image = new ImageView(this);
                        image.SetImageBitmap(map);
                        layout.AddView(image);
                    });
                    hander.Post(run);
                });
            }
        }
    }