Reverse geocode

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Use an online service to find the address for a tapped point.

Image of reverse geocode

Use case

You might use a geocoder to find a customer's delivery address based on the location returned by their device's GPS.

How to use the sample

Tap the map to see the nearest address displayed in a callout.

How it works

  1. Create a LocatorTask object using a URL to a geocoder service.
  2. Set the GeocodeParameters for the LocatorTask and specify the geocoder's attributes.
  3. Get the matching results from the GeocodeResult using LocatorTask.reverseGeocodeAsync.
  4. Show the results using a PictureMarkerSymbol and add the symbol to a Graphic in the GraphicsOverlay.

Relevant API

  • GeocodeParameters
  • LocatorTask
  • ReverseGeocodeParameters

Tags

address, geocode, locate, reverse geocode, search

Sample Code

ReverseGeocode.xamlReverseGeocode.xaml.cs
                  
<?xml version="1.0" encoding="utf-8"?>

<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:esriUI="clr-namespace:Esri.ArcGISRuntime.Xamarin.Forms;assembly=Esri.ArcGISRuntime.Xamarin.Forms"
             xmlns:resources="clr-namespace:Forms.Resources;assembly=ArcGISRuntime"
             x:Class="ArcGISRuntimeXamarin.Samples.ReverseGeocode.ReverseGeocode">
    <RelativeLayout>
        <esriUI:MapView x:Name="MyMapView" Style="{StaticResource MapWithFormStyle}"
                        BindingContext="{x:Reference Name=ResponsiveFormContainer}" />
        <resources:ResponsiveFormContainer x:Name="ResponsiveFormContainer">
            <StackLayout>
                <Label Text="Tap to find the nearest address."
                       HorizontalTextAlignment="Center" />
            </StackLayout>
        </resources:ResponsiveFormContainer>
    </RelativeLayout>
</ContentPage>