ArcGIS Runtime SDK for .NET Samples

Show magnifier

Show magnifier


// Copyright 2016 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.Mapping;
using Esri.ArcGISRuntime.UI.Controls;
using Esri.ArcGISRuntime.UI;
using Foundation;
using UIKit;

namespace ArcGISRuntime.Samples.ShowMagnifier
        "Show magnifier",
        "This sample demonstrates how you can tap and hold on a map to get the magnifier. You can also pan while tapping and holding to move the magnifier across the map.",
    public class ShowMagnifier : UIViewController
        // Constant holding offset where the MapView control should start
        private const int yPageOffset = 60;

        // Create and hold reference to the used MapView
        private MapView _myMapView = new MapView();

        public ShowMagnifier()
            Title = "Show magnifier";

        public override void ViewDidLoad()

            // Create the UI, setup the control references and execute initialization 

        public override void ViewDidLayoutSubviews()
            // Setup the visual frame for the MapView
            _myMapView.Frame = new CoreGraphics.CGRect(0, 0, View.Bounds.Width, View.Bounds.Height);


        private void Initialize()
            // Create new Map with basemap and initial location
            Map myMap = new Map(BasemapType.Topographic, 34.056295, -117.195800, 10);

            // Enable magnifier
            _myMapView.InteractionOptions = new MapViewInteractionOptions { IsMagnifierEnabled = true };

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

        private void CreateLayout()
            // Add MapView to the page

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