ArcGIS vector tiled layer (URL)

ArcGIS vector tiled layer



// Copyright 2018 Esri.
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License.
// You may obtain a copy of the License at:
// Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific
// language governing permissions and limitations under the License.

using Esri.ArcGISRuntime.Geometry;
using Esri.ArcGISRuntime.Mapping;
using Esri.ArcGISRuntime.UI.Controls;
using Foundation;
using System;
using System.Collections.Generic;
using System.Linq;
using UIKit;

namespace ArcGISRuntime.Samples.ArcGISVectorTiledLayerUrl
        "ArcGIS vector tiled layer (URL)",
        "This sample demonstrates how to create a ArcGISVectorTiledLayer and bind this to a Basemap which is used in the creation of a map.",
    public class ArcGISVectorTiledLayerUrl : UIViewController
        // Create the UI controls
        private readonly MapView _myMapView = new MapView();
        private readonly UIToolbar _toolbar = new UIToolbar();
        private readonly UIButton _button = new UIButton();

        private readonly Dictionary<string, Uri> _layerUrls = new Dictionary<string, Uri>()
            {"Mid-Century", new Uri("")},
            {"Colored Pencil", new Uri("")},
            {"Newspaper", new Uri("")},
            {"Nova", new Uri("")},
            {"World Street Map (Night)", new Uri("")}

        public ArcGISVectorTiledLayerUrl()
            Title = "ArcGIS vector tiled layer (URL)";

        public override void ViewDidLoad()


        private void Initialize()
            // Create a new Map instance with the basemap
            Map myMap = new Map(SpatialReferences.WebMercator);

            // Create a new ArcGISVectorTiledLayer
            ArcGISVectorTiledLayer vectorTiledLayer = new ArcGISVectorTiledLayer(_layerUrls.Values.First());

            // Create and use a new basemap
            myMap.Basemap = new Basemap(vectorTiledLayer);

            // Assign the Map to the MapView
            _myMapView.Map = myMap;

        private void LayerSelectionButtonClick(object sender, EventArgs e)
            // Create the view controller that will present the list of layers
            UIAlertController layerSelectionAlert = UIAlertController.Create("Select a vector layer", "", UIAlertControllerStyle.ActionSheet);

            // Add an option for each layer
            foreach (string item in _layerUrls.Keys)
                // Selecting the layer will call the ChooseLayer function
                layerSelectionAlert.AddAction(UIAlertAction.Create(item, UIAlertActionStyle.Default, action => ChooseLayer(item)));

            // Show the alert
            PresentViewController(layerSelectionAlert, true, null);

        private void ChooseLayer(string layer)
            // Get the layer based on the selection
            ArcGISVectorTiledLayer vectorTiledLayer = new ArcGISVectorTiledLayer(_layerUrls[layer]);

            // Apply the layer
            _myMapView.Map = new Map(new Basemap(vectorTiledLayer));

        private void CreateLayout()
            // Update the button parameters
            _button.SetTitle("Choose Layer", UIControlState.Normal);
            _button.SetTitleColor(UIColor.Blue, UIControlState.Normal);

            // Allow the user to select new layers
            _button.TouchUpInside += LayerSelectionButtonClick;

            // Add views
            View.AddSubviews(_myMapView, _toolbar, _button);

        public override void ViewDidLayoutSubviews()
            // Setup the visual frames for the views 
            _myMapView.Frame = new CoreGraphics.CGRect(0, 0, View.Bounds.Width, View.Bounds.Height);
            _toolbar.Frame = new CoreGraphics.CGRect(0, View.Bounds.Height - 50, View.Bounds.Width, 50);
            _button.Frame = new CoreGraphics.CGRect(10, _toolbar.Frame.Top + 10, View.Bounds.Width - 20, 30);


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