// 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: http://www.apache.org/licenses/LICENSE-2.0
//
// 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 Android.App;
using Android.OS;
using Android.Widget;
using Esri.ArcGISRuntime.Geometry;
using Esri.ArcGISRuntime.Mapping;
using Esri.ArcGISRuntime.UI.Controls;
namespace ArcGISRuntime.Samples.SetMinMaxScale
{
[Activity]
[ArcGISRuntime.Samples.Shared.Attributes.Sample(
"Set min & max scale",
"Map",
"This sample demonstrates how to set the minimum and maximum scale of a Map. Setting the minimum and maximum scale for the Map can be useful in keeping the user focused at a certain level of detail.",
"")]
public class SetMinMaxScale : Activity
{
// Create and hold reference to the used MapView
private MapView _myMapView = new MapView();
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
Title = "Set min & max scale";
// Create the UI, setup the control references and execute initialization
CreateLayout();
Initialize();
}
private void Initialize()
{
// Create new Map with Streets basemap
Map myMap = new Map(Basemap.CreateStreets());
// Set the scale at which this layer can be viewed
// MinScale defines how far 'out' you can zoom where
// MaxScale defines how far 'in' you can zoom.
myMap.MinScale = 8000;
myMap.MaxScale = 2000;
// Create central point where map is centered
MapPoint centralPoint = new MapPoint(-355453, 7548720, SpatialReferences.WebMercator);
// Create starting viewpoint
Viewpoint startingViewpoint = new Viewpoint(
centralPoint,
3000);
// Set starting viewpoint
myMap.InitialViewpoint = startingViewpoint;
// Set map to mapview
_myMapView.Map = myMap;
}
private void CreateLayout()
{
// Create a new vertical layout for the app
var layout = new LinearLayout(this) { Orientation = Orientation.Vertical };
// Add the map view to the layout
layout.AddView(_myMapView);
// Show the layout in the app
SetContentView(layout);
}
}
}

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