Comment remplir une vue de liste dans xamarin android c# à l'aide de l'API REST, vue de liste personnalisée, adaptateur, disposition des lignes

J'ai une connaissance très limitée de la programmation en général. Essayer de créer une vue de liste personnalisée pour afficher une image et un message principalement.

J'ai essayé de suivre des tutoriels sur la façon de le faire et je n'arrive pas à trouver comment le faire fonctionner.

ont actuellement ces erreurs et n'ont aucune idée de comment corriger:

[![erreur d'écran msgInbox][1]][1]

Voici l'activité msgInbox avec la liste :

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

using Android.App;
using Android.Content;
using Android.OS;
using Android.Runtime;
using Android.Views;
using Android.Widget;
using Dribl;
using Newtonsoft.Json;

namespace Dribl.Droid
{
    [Activity(Label = "MsgInbox", Theme = "@style/CustomActionBarTheme")]
    public class MsgInbox : Activity
    {

        TextView txt;

        //Button backBtn;

        private List<Message> msgItems;

        private ListView msgListview;

        //private BaseAdapter<msgInfo> mAdapter;

        //action bar layout buttons
        LinearLayout surveysBtn;


        LinearLayout availabilityBtn;


        LinearLayout inboxBtn;


        LinearLayout dashboardBtn;




        protected override void OnCreate(Bundle savedInstanceState)
        {
            base.OnCreate(savedInstanceState);

            // Set our view from the "main" layout resource
            SetContentView(Resource.Layout.msgInbox);
            //add the action bar to the layout 
            ActionBar.SetCustomView(Resource.Layout.action_bar);
            ActionBar.SetDisplayShowCustomEnabled(true);



            //actionbar layout btns
            //actionbar layout btns
            surveysBtn = FindViewById<LinearLayout>(Resource.Id.SurveyLayout);
            surveysBtn.Click += surveyBtn_Click;

            inboxBtn = FindViewById<LinearLayout>(Resource.Id.InboxLayout);
            inboxBtn.Click += InboxBtn_Click;


            availabilityBtn = FindViewById<LinearLayout>(Resource.Id.availabilityLayout);
            availabilityBtn.Click += availabilityBtn_Click;

            dashboardBtn = FindViewById<LinearLayout>(Resource.Id.dashboardLayout);
            dashboardBtn.Click += dashboardBtn_Click;


            txt = FindViewById<TextView>(Resource.Id.msg_txt);


            WebClient client = new WebClient();
            System.Uri uri = new System.Uri("http://dribl.com/api/getAllMyMessages");
            NameValueCollection parameters = new NameValueCollection();


            parameters.Add("token", GlobalVariables.token);

            client.UploadValuesAsync(uri, parameters);
            client.UploadValuesCompleted += client_UploadValuesCompleted;

            //listview
            msgListview = FindViewById<ListView>(Resource.Id.msgListView);
            msgListview.ItemClick += MsgListview_ItemClick;


        }

        private void MsgListview_ItemClick(object sender, AdapterView.ItemClickEventArgs e)
        {
            Intent intent = new Intent(this, typeof(msgDetails));

            //add in a variable to store the message that was clicked on and pass across to next pages txtfield
            intent.PutExtra("msgDet", "This is a message");
            StartActivity(intent);
        }

        protected internal void client_UploadValuesCompleted(object sender, UploadValuesCompletedEventArgs e)
        {
            string json = Encoding.UTF8.GetString(e.Result);
            List<Message> messages = JsonConvert.DeserializeObject<List<Message>>(json);

            //display the retrieved msg in the console output
            //Console.WriteLine(message[1].message + " is the message");

            //display the msg in a text view at top of page
            //txt.Text = message[1].message;


            //get the list view create a string to store and add to the list view based on the json return

            // msgItems = new List<Message>();

            // for (int c = 0; c < message.Count; c++)
            // {

            //     msgItems.Add(message[c].message);
            //msgItems.Add(new Message() { message = "pauls hectic"});
            //}

            msgItems = messages;

           // msgAdapter msgAdapter = new msgAdapter(this, msgItems);
            //msgListview.Adapter = msgAdapter;


            //Msgs.Add(message[1].message);
            //Msgs.Add(message[0].message);

           // ArrayAdapter<Message> adapter = new ArrayAdapter<Message>(this, Android.Resource.Layout.SimpleListItem1, msgItems);
            //msgListview.Adapter = adapter;
           // msgAdapter msgAdapter = new MsgAdapter(this, message);
            //var msgAdapter = new MsgAdapter(this, message);
            MsgAdapter msgAdapter = new MsgAdapter(this, messages);
        }


        void surveyBtn_Click(object sender, EventArgs e)
        {
            Intent intent = new Intent(this, typeof(Surveys));
            this.StartActivity(intent);
            this.Finish();
        }

        void dashboardBtn_Click(object sender, EventArgs e)
        {
            Intent intent = new Intent(this, typeof(dashboard));
            this.StartActivity(intent);
            this.Finish();
        }

        void availabilityBtn_Click(object sender, EventArgs e)
        {
            Intent intent = new Intent(this, typeof(Availability));
            this.StartActivity(intent);
            this.Finish();
        }

        void InboxBtn_Click(object sender, EventArgs e)
        {
            Intent intent = new Intent(this, typeof(MsgInbox));
            this.StartActivity(intent);
            this.Finish();
        }





    }


}

Voici la classe msgInfo :

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;

namespace Dribl.Droid
{

            public class Message
        {

            public string messages { get; set; }


    }

}

C'est l'adaptateur msg :

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;

namespace Dribl.Droid
{


    class MsgAdapter : BaseAdapter<Message>
    {
        private List<Message> msgItems;
        private Context msgContext;

        public MsgAdapter(Context Context, List<Message> Items)
        {
            msgItems = Items;
            msgContext = Context;
        }
        public override int Count
        {
            get { return msgItems.Count; }
        }
        public override long GetItemId(int position)
        {
            return position;
        }
        public override Message this[int position]
        {
            get { return msgItems[position]; }
        }
        public override View GetView(int position, View convertView, ViewGroup parent)
        {
            View row = convertView;

            if (row == null)
            {
                row = LayoutInflater.From(msgContext).Inflate(Resource.Layout.msgCell, parent, false);
            }


            TextView message = row.FindViewById<TextView>(Resource.Id.message);
            message.Text = msgItems[position].messages;

            return row;
        }
    }
}