Open a shapefile stored on the device and display it as a feature layer with default symbology.
Use case
Shapefiles store location, shape and attributes of geospatial vector data. Shapefiles can be loaded directly into ArcGIS Runtime.
How to use the sample
Pan and zoom around the map to observe the data from the shapefile.
How it works
Create a ShapefileFeatureTable passing in the URL of a shapefile.
Create a FeatureLayer using the shapefile feature table.
Add the layer to the map's operation layers.
Relevant API
FeatureLayer
ShapefileFeatureTable
Offline data
This sample downloads the following items from ArcGIS Online automatically:
Public Art Shapefile - Shapefiles that cover Aurora Colorado: Public art (points), Bike trails (lines), and Subdivisions (polygons).
Tags
layers, shapefile, shp, vector
Sample Code
FeatureLayerShapefile.cs
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// Copyright 2017 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 System;
using Android.App;
using Android.OS;
using Android.Widget;
using Esri.ArcGISRuntime.Data;
using Esri.ArcGISRuntime.Mapping;
using Esri.ArcGISRuntime.UI.Controls;
using ArcGISRuntime.Samples.Managers;
namespaceArcGISRuntime.Samples.FeatureLayerShapefile{
[Activity (ConfigurationChanges=Android.Content.PM.ConfigChanges.Orientation | Android.Content.PM.ConfigChanges.ScreenSize)]
[ArcGISRuntime.Samples.Shared.Attributes.OfflineData("d98b3e5293834c5f852f13c569930caa")]
[ArcGISRuntime.Samples.Shared.Attributes.Sample(
name: "Feature layer (shapefile)",
category: "Data",
description: "Open a shapefile stored on the device and display it as a feature layer with default symbology.",
instructions: "Pan and zoom around the map to observe the data from the shapefile.",
tags: new[] { "layers", "shapefile", "shp", "vector" })]
publicclassFeatureLayerShapefile : Activity {
private MapView _myMapView;
protectedoverridevoidOnCreate(Bundle bundle) {
base.OnCreate(bundle);
Title = "Feature layer (shapefile)";
CreateLayout();
// Download (if necessary) and add a local shapefile dataset to the map Initialize();
}
privateasyncvoidInitialize() {
// Create a new map to display in the map view with a streets basemap _myMapView.Map = new Map(BasemapStyle.ArcGISStreets);
// Get the path to the downloaded shapefilestring filepath = GetShapefilePath();
try {
// Open the shapefile ShapefileFeatureTable myShapefile = await ShapefileFeatureTable.OpenAsync(filepath);
// Create a feature layer to display the shapefile FeatureLayer newFeatureLayer = new FeatureLayer(myShapefile);
// Add the feature layer to the map _myMapView.Map.OperationalLayers.Add(newFeatureLayer);
// Zoom the map to the extent of the shapefileawait _myMapView.SetViewpointGeometryAsync(newFeatureLayer.FullExtent, 50);
}
catch (Exception e)
{
new AlertDialog.Builder(this).SetMessage(e.ToString()).SetTitle("Error").Show();
}
}
privatestaticstringGetShapefilePath() {
return DataManager.GetDataFolder("d98b3e5293834c5f852f13c569930caa", "Public_Art.shp");
}
privatevoidCreateLayout() {
// Create a new vertical layout for the app LinearLayout layout = new LinearLayout(this) { Orientation = Orientation.Vertical };
// Add a map view to the layout _myMapView = new MapView(this);
layout.AddView(_myMapView);
// Show the layout in the app SetContentView(layout);
}
}
}