Change basemap

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Change a map's basemap. A basemap is beneath all layers on a Map and is used to provide visual reference for the operational layers.

Image of change basemap

Use case

Basemaps should be selected contextually. For example, in maritime applications, it would be more appropriate to use a basemap of the world's oceans as opposed to a basemap of the world's streets.

How to use the sample

When the basemap gallery appears, select a basemap to be displayed.

How it works

Create an Map object.
Set the map to the MapView object.
Create a BasemapGallery using the toolkit.
Bind the Geomodel property from the BasemapGallery object to the MapView map.

Relevant API

Basemap
BasemapGallery
Map
MapView

Additional information

This samples uses the basemap gallery toolkit component, which requires the toolkit to be cloned and set up locally. For information about setting up the toolkit, visit the repository.

Sample Code

ChangeBasemap.xaml

ChangeBasemap.xaml.cs

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﻿<?xml version="1.0" encoding="utf-8" ?>
<ContentPage x:Class="ArcGISRuntime.Samples.ChangeBasemap.ChangeBasemap"
             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:toolkit="clr-namespace:Esri.ArcGISRuntime.Toolkit.Xamarin.Forms;assembly=Esri.ArcGISRuntime.Toolkit.Xamarin.Forms">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="*" />
            <RowDefinition Height="auto" />
        </Grid.RowDefinitions>
        <esriUI:MapView x:Name="MyMapView" />
        <toolkit:BasemapGallery x:Name="MyBasemapGallery"
                                BackgroundColor="White"
                                GeoModel="{Binding Source={x:Reference MyMapView}, Path=Map}" />
        <Button x:Name="basemapGalleryButton"
                Grid.Row="1"
                Clicked="OnBasemapGalleryButtonClicked"
                Text="Hide Gallery" />
    </Grid>
</ContentPage>