protected async override void OnCreate(Bundle savedInstanceState) { base.OnCreate(savedInstanceState); this.ActionBar.Subtitle = "logging in..."; // Set our view from the "main" layout resource SetContentView(Resource.Layout.Main); sendButton = FindViewById <Button>(Resource.Id.sendButton); textMessage = FindViewById <EditText>(Resource.Id.messageTextField); listView = FindViewById <ListView>(Resource.Id.listView); adapter = new MessagesAdapter(this); listView.Adapter = adapter; TwilioIPMessagingSDK.SetLogLevel((int)Android.Util.LogPriority.Debug); if (!TwilioIPMessagingSDK.IsInitialized) { Console.WriteLine("Initialize"); TwilioIPMessagingSDK.InitializeSDK(this, new InitListener { InitializedHandler = async delegate { await Setup(); }, ErrorHandler = err => { Console.WriteLine(err.Message); } }); } else { await Setup(); } sendButton.Click += ButtonSend_Click; }