Aggiunta configurazione base per l'app Android

Implementate le configurazioni iniziali in `AndroidManifest.xml` e `Nuvolari.csproj`.
Creata la classe `MainActivity` per gestire la mappa con `SearchView` per la ricerca di luoghi.
Definiti i layout in `activity_main.axml` e `activity_main.xml`.
Aggiunti file di risorse per le icone dell'app e creato `ic_launcher_background.xml` per il colore di sfondo.
Definiti i testi dell'app in `strings.xml`.

Nuvolari/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.nuvolari" android:versionCode="1">
+	<application android:allowBackup="true" android:icon="@mipmap/appicon" android:label="Nuvolari" android:supportsRtl="true"></application>
+	<uses-permission android:name="android.permission.INTERNET" />
+</manifest>

Nuvolari/MainActivity.cs

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+using Android.App;
+using Android.OS;
+using Android.Gms.Maps;
+using Android.Gms.Maps.Model;
+using Android.Widget;
+using Android.Locations;
+using System.Threading.Tasks;
+using System.Linq;
+
+/*
+ * IDEE:
+ * Fare una versione molto base dell'app senza troppe funzionalità, giusto per mostrare una mappa.
+ * Fare poi una versione con più funzionalità, ma con pubblicità per guadagnare qualcosa da quello.
+ */
+
+namespace Nuvolari
+{
+    [Activity(Label = "@string/app_name", MainLauncher = true)]
+    public class MainActivity : Activity, IOnMapReadyCallback
+    {
+        private MapFragment? mapFragment;
+        private GoogleMap? googleMap;
+        private SearchView? searchView;
+
+        protected override void OnCreate(Bundle? savedInstanceState)
+        {
+            base.OnCreate(savedInstanceState);
+
+            // Usa il layout personalizzato con SearchView e MapFragment
+            SetContentView(Resource.Layout.activity_main);
+
+            // Ottieni riferimenti ai componenti UI
+            searchView = FindViewById<SearchView>(Resource.Id.searchView);
+            mapFragment = FragmentManager.FindFragmentById(Resource.Id.map) as MapFragment;
+
+            mapFragment?.GetMapAsync(this);
+
+            // Gestione ricerca
+            if (searchView != null)
+            {
+                searchView.QueryTextSubmit += async (s, e) =>
+                {
+                    var query = e?.Query ?? string.Empty;
+                    await SearchAndMoveToLocationAsync(query);
+                    searchView.ClearFocus();
+                };
+            }
+        }
+
+        public void OnMapReady(GoogleMap map)
+        {
+            googleMap = map;
+            // Imposta solo la navigazione base (scroll/zoom)
+            googleMap.UiSettings.CompassEnabled = false;
+            googleMap.UiSettings.MapToolbarEnabled = false;
+            googleMap.UiSettings.MyLocationButtonEnabled = false;
+
+            // Posizione iniziale: Milano
+            var position = new LatLng(45.4642, 9.19);
+            googleMap.MoveCamera(CameraUpdateFactory.NewLatLngZoom(position, 10));
+        }
+
+        private async Task SearchAndMoveToLocationAsync(string query)
+        {
+            if (string.IsNullOrWhiteSpace(query) || googleMap == null)
+                return;
+
+            var geocoder = new Geocoder(this);
+#pragma warning disable CA1422 // Suppress warning for obsolete API on Android 33+
+            var addresses = await Task.Run(() => geocoder.GetFromLocationName(query, 1));
+#pragma warning restore CA1422
+            var address = addresses?.FirstOrDefault();
+            if (address != null)
+            {
+                var latLng = new LatLng(address.Latitude, address.Longitude);
+                RunOnUiThread(() =>
+                {
+                    googleMap?.AnimateCamera(CameraUpdateFactory.NewLatLngZoom(latLng, 10));
+                });
+            }
+            else
+            {
+                RunOnUiThread(() =>
+                {
+                    Toast.MakeText(this, "Luogo non trovato", ToastLength.Short).Show();
+                });
+            }
+        }
+    }
+}

Nuvolari/Nuvolari.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net9.0-android</TargetFramework>
+    <SupportedOSPlatformVersion>21</SupportedOSPlatformVersion>
+    <OutputType>Exe</OutputType>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <ApplicationId>com.companyname.Nuvolari</ApplicationId>
+    <ApplicationVersion>1</ApplicationVersion>
+    <ApplicationDisplayVersion>1.0</ApplicationDisplayVersion>
+    <!--
+      Enables trim analyzers and full trimming during Release mode.
+      To learn more, see: https://learn.microsoft.com/dotnet/core/deploying/trimming/trimming-options#trimming-granularity
+    -->
+    <TrimMode>full</TrimMode>
+  </PropertyGroup>
+  <ItemGroup>
+    <PackageReference Include="Xamarin.GooglePlayServices.Maps" Version="119.2.0.1" />
+  </ItemGroup>
+</Project>

Nuvolari/Nuvolari.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.13.35931.197 d17.13
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Nuvolari", "Nuvolari.csproj", "{B6CEEA40-2867-4F58-96EA-BB986DE9489C}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{B6CEEA40-2867-4F58-96EA-BB986DE9489C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{B6CEEA40-2867-4F58-96EA-BB986DE9489C}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{B6CEEA40-2867-4F58-96EA-BB986DE9489C}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{B6CEEA40-2867-4F58-96EA-BB986DE9489C}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {646B2C8A-0EA4-4133-AB5A-3C6DD1D72D94}
+	EndGlobalSection
+EndGlobal

Nuvolari/Resources/AboutResources.txt

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+Images, layout descriptions, binary blobs and string dictionaries can be included 
+in your application as resource files.  Various Android APIs are designed to 
+operate on the resource IDs instead of dealing with images, strings or binary blobs 
+directly.
+
+For example, a sample Android app that contains a user interface layout (main.xml),
+an internationalization string table (strings.xml) and some icons (drawable-XXX/icon.png) 
+would keep its resources in the "Resources" directory of the application:
+
+Resources/
+    drawable/
+        icon.png
+
+    layout/
+        main.xml
+
+    values/
+        strings.xml
+
+In order to get the build system to recognize Android resources, set the build action to
+"AndroidResource".  The native Android APIs do not operate directly with filenames, but 
+instead operate on resource IDs.  When you compile an Android application that uses resources, 
+the build system will package the resources for distribution and generate a class called "Resource" 
+(this is an Android convention) that contains the tokens for each one of the resources 
+included. For example, for the above Resources layout, this is what the Resource class would expose:
+
+public class Resource {
+    public class Drawable {
+        public const int icon = 0x123;
+    }
+
+    public class Layout {
+        public const int main = 0x456;
+    }
+
+    public class Strings {
+        public const int first_string = 0xabc;
+        public const int second_string = 0xbcd;
+    }
+}
+
+You would then use Resource.Drawable.icon to reference the drawable/icon.png file, or 
+Resource.Layout.main to reference the layout/main.xml file, or Resource.Strings.first_string 
+to reference the first string in the dictionary file values/strings.xml.

Nuvolari/Resources/layout/activity_main.axml

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+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+  <SearchView
+      android:id="@+id/searchView"
+      android:layout_width="match_parent"
+      android:layout_height="wrap_content"
+      android:queryHint="Cerca città o luogo" />
+  <fragment
+      android:id="@+id/map"
+      android:name="com.google.android.gms.maps.MapFragment"
+      android:layout_width="match_parent"
+      android:layout_height="0dp"
+      android:layout_weight="1" />
+</LinearLayout>

Nuvolari/Resources/layout/activity_main.xml

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+<?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">
+    <TextView 
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_centerInParent="true"
+        android:text="@string/app_text"
+    />
+</RelativeLayout>

Nuvolari/Resources/mipmap-anydpi-v26/appicon.xml

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+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+  <background android:drawable="@mipmap/appicon_background" />
+  <foreground android:drawable="@mipmap/appicon_foreground" />
+</adaptive-icon>

Nuvolari/Resources/mipmap-anydpi-v26/appicon_round.xml

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+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+  <background android:drawable="@mipmap/appicon_background" />
+  <foreground android:drawable="@mipmap/appicon_foreground" />
+</adaptive-icon>

Nuvolari/Resources/values/ic_launcher_background.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="ic_launcher_background">#2C3E50</color>
+</resources>

Nuvolari/Resources/values/strings.xml

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+<resources>
+    <string name="app_name">Nuvolari</string>
+    <string name="app_text">Hello, Android!</string>
+</resources>