ArcGISRuntimeXamarin.MainActivity.OnCreate C# (CSharp) Метод

        protected async override void OnCreate(Bundle bundle)
        {
            base.OnCreate(bundle);

            SetContentView(Resource.Layout.CategoriesList);

            try
            {
                // Initialize the SampleManager and create the Sample Categories
                await SampleManager.Current.InitializeAsync(this);
                _sampleCategories = SampleManager.Current.GetSamplesAsTree();

                // Set up the custom ArrayAdapter for displaying the Categories.
                var categoriesAdapter = new CategoriesAdapter(this, _sampleCategories);
                ListView categoriesListView = FindViewById<ListView>(Resource.Id.categoriesListView);
                categoriesListView.Adapter = categoriesAdapter;

                categoriesListView.ItemClick += CategoriesItemClick;
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
        }