Android

namespace MobileApplication
{
    public  partial class ListaCriteriosAdapter : BaseAdapter<Criterio>
    {
        IList<Criterio> ListaCriterios;
        private Context activity;
        private LayoutInflater MiInflanter;
        MobileService.MobileService Query = new MobileService.MobileService();
 
        public ListaCriteriosAdapter(Context context, IList<Criterio> MiLista)
        {
            this.activity = context;
            ListaCriterios = MiLista;
            MiInflanter = (LayoutInflater)activity.GetSystemService(Context.LayoutInflaterService);
        }
 
        public override int Count
        {
            get { return ListaCriterios.Count; }
        }
 
        public override long GetItemId(int position)
        {
            return position;
        }
 
        public override Criterio this[int position]
        {
            get { return ListaCriterios[position]; }
        }
 
        public override View GetView(int position, View convertView, ViewGroup parent)
        {
            ContactsViewHolder Holder = null;
            ImageView btnDelete;
 
            if (convertView == null)
            {
                convertView = MiInflanter.Inflate(Resource.Layout.ListViewCriterios, null);
                Holder = new ContactsViewHolder();
 
                Holder.txtFolio = convertView.FindViewById<TextView>(Resource.Id.TVFolioListaCriterios);
                Holder.txtCriterio = convertView.FindViewById<TextView>(Resource.Id.TVCriterioListaCriterios);
                Holder.txtTipo = convertView.FindViewById<TextView>(Resource.Id.TVTipoListaCriterios);
                btnDelete = convertView.FindViewById<ImageView>(Resource.Id.BTNBorrarCriterio);
 
                btnDelete.Click += (object sender, EventArgs e) =>
                {
                    AlertDialog.Builder builder = new AlertDialog.Builder(activity);
                    AlertDialog Confirm = builder.Create();
 
                    Confirm.SetTitle("Confirmar");
                    Confirm.SetMessage("Estas seguro de eliminarlo?");
                    Confirm.SetButton("Aceptar", (s, ev) =>
                    {
                        var Temp = (int)((sender as ImageView).Tag);
                        int id = (Int32)ListaCriterios[Temp].IdCriterio;
 
                        ListaCriterios.RemoveAt(Temp);
 
                        EliminarCriterioPP((Int32)id);
                        NotifyDataSetChanged();
                    });
 
                    Confirm.Show();
 
                };
 
                convertView.Tag = Holder;
                btnDelete.Tag = position;
            }
            else
            {
                btnDelete = convertView.FindViewById<ImageView>(Resource.Id.BTNBorrarCriterio);
                Holder = convertView.Tag as ContactsViewHolder;
                btnDelete.Tag = position;
            }
 
            Holder.txtFolio.Text = ListaCriterios[position].IdCriterio.ToString();
            Holder.txtCriterio.Text = ListaCriterios[position].DescripcionCriterio.ToString();
            Holder.txtTipo.Text = ListaCriterios[position].DescripcionGrafico;
            NotifyDataSetChanged();
            return convertView;
        }
 
        public class ContactsViewHolder : Java.Lang.Object
        {
            public TextView txtFolio { get; set; }
            public TextView txtCriterio { get; set; }
            public TextView txtTipo { get; set; }
        }
 
        private void EliminarCriterioPP(int Id)
        {
            Query.EliminarCriterioPPCompleted += Query_EliminarCriterioPPCompleted;
            Query.EliminarCriterioPPAsync(Id);
        }
 
        void Query_EliminarCriterioPPCompleted(object sender, System.ComponentModel.AsyncCompletedEventArgs e)
        {
            Toast.MakeText(activity, "Fue eliminado correctamente", ToastLength.Short).Show();
        }
    }
}

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
    android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity">
 
    <TextView android:text="No contents" android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/textView" />
 
    <ListView
        android:id="@+id/listView_InfoOnLine"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/textView"
        android:layout_centerHorizontal="true"
        android:background="@drawable/bkgreen"
        android:layout_marginTop="15dp"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="false"
        android:footerDividersEnabled="false"
        android:layout_alignParentEnd="true"
        android:divider="@null"
        android:dividerHeight="5dp"
        android:layout_alignParentStart="true"
        android:scrollIndicators="right"
        android:clickable="true" />
</RelativeLayout>

<?xml version="1.0" encoding="utf-8"?>
 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="90dip"
    android:background="@drawable/bkglavander"
    android:orientation="vertical"
    android:padding="5dip" >
 
    <!--  ListRow Left sied Image -->
    <LinearLayout android:id="@+id/thumbnail"
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="80dip"
        android:padding="3dip"
        android:layout_alignParentLeft="true"
        android:background="@drawable/bkgorange"
        android:layout_marginRight="5dip">
 
        <ImageView
            android:id="@+id/imaginiRSS"
            android:layout_width="50dip"
            android:layout_height="60dip"
            android:src="@drawable/bkgblack"/>
 
        <LinearLayout
            android:orientation="vertical"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_alignParentLeft="true">
 
            <!-- Title Of rss-->
            <TextView
                android:id="@+id/titoliRSS"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text=". TITLE"
                android:textColor="#ff00aa00"
                android:typeface="sans"
                android:textSize="20dip"
                android:layout_marginRight="5dip"
                android:layout_marginLeft="5dip"
                android:textStyle="bold"/>
 
            <!-- Link -->
            <TextView
                android:id="@+id/linksRSS"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_alignParentRight="true"
                android:layout_alignTop="@id/titoliRSS"
                android:gravity="right"
                android:text=". LINK"
                android:layout_marginRight="5dip"
                android:layout_marginLeft="5dip"
                android:textSize="12dip"
                android:textColor="#ff0000ff"
                android:textStyle="bold"/>
 
            <!-- Description -->
            <TextView
                android:id="@+id/descrizioniRSS"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:layout_below="@id/titoliRSS"
                android:textColor="#343434"
                android:textSize="15dip"
                android:layout_marginRight="5dip"
                android:layout_marginLeft="5dip"
                android:layout_marginTop="1dip"
                android:text=". DESC." />
        </LinearLayout>
    </LinearLayout>
</LinearLayout>

public Bitmap getBitmapFromURL(String src) {
        Bitmap myBitmap = null;
        try {
            java.net.URL url = new java.net.URL(src);
            HttpURLConnection connection =    (HttpURLConnection) url
                    .openConnection();
            connection.setDoInput(true);
            connection.connect();
            InputStream input = connection.getInputStream();
            myBitmap = BitmapFactory.decodeStream(input);
            return myBitmap;
        } catch (IOException e) {
            e.printStackTrace();
            return null;
        }
    }