Hello @dotMorten_esri and thanks a lot for your reply.
I indeed have references of the MapView type in my C# code (By the way I don't have XAML files because I don't use Xamarin.Forms. I using Xamarin.Android so my UI is defined through traditional Android XML files). I disabled the linker as you suggested but the basemaps still do not appear in the Release build of my app.
In order to push the test further, I created a new Xamarin.Android project in Visual Studio 2022 using the default code template generated by the IDE and added the Esri.ArcGISRuntime.Xamarin.Android nuGet package into it. I then edited the XML file "content_main.xml" (part of the main view activity_main.xml) and the "OnCreate" function from the MainActivity class as it follows.
content_main.xml:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:showIn="@layout/activity_main">
<Esri.ArcGISRuntime.UI.Controls.MapView
android:id="@+id/main_map_view"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</RelativeLayout>
MainActivity.cs:
//...
using Esri.ArcGISRuntime.Mapping;
using Esri.ArcGISRuntime.UI.Controls;
namespace test_arcgis_api
{
[Activity(Label = "@string/app_name", Theme = "@style/AppTheme.NoActionBar", MainLauncher = true)]
public class MainActivity : AppCompatActivity
{
Map _map;
MapView _mapView;
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
Xamarin.Essentials.Platform.Init(this, savedInstanceState);
SetContentView(Resource.Layout.activity_main);
Esri.ArcGISRuntime.ArcGISRuntimeEnvironment.ApiKey = "__my_API_key__";
Esri.ArcGISRuntime.ArcGISRuntimeEnvironment.SetLicense("__my_licence_key__");
_map = new Map(BasemapStyle.ArcGISTopographic);
_mapView = FindViewById<MapView>(Resource.Id.main_map_view);
_mapView.Map = _map;
//...
}
//...
}
}
I disabled the linker and tested both the Debug build and the Release build of this new Android project on my smartphone (Xiaomi 9T Pro, Android 11). And I ended with the same issue, namely the world map displays itself correctly on the screen in the case of the Debug build (basemaps are displayed) but not in the Release build. I also tried to downgrade the version of the Esri.ArcGISRuntime.Xamarin.Android nuGet package but it did not solved the problem.
By any chance, does my issue could be related to a kind of "limitation" of my rights regarding my API key?
