Uploading sample

Sample/GMapUtilityDemo.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 15
+VisualStudioVersion = 15.0.27004.2009
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "GMapUtilityDemo", "GMapUtilityDemo\GMapUtilityDemo.csproj", "{8256F46C-1C7F-4596-8542-04848532D0DC}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{8256F46C-1C7F-4596-8542-04848532D0DC}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{8256F46C-1C7F-4596-8542-04848532D0DC}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{8256F46C-1C7F-4596-8542-04848532D0DC}.Debug|Any CPU.Deploy.0 = Debug|Any CPU
+		{8256F46C-1C7F-4596-8542-04848532D0DC}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{8256F46C-1C7F-4596-8542-04848532D0DC}.Release|Any CPU.Build.0 = Release|Any CPU
+		{8256F46C-1C7F-4596-8542-04848532D0DC}.Release|Any CPU.Deploy.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {52215C4E-383F-4529-B6F6-38690C2473AA}
+	EndGlobalSection
+EndGlobal

Sample/GMapUtilityDemo/Assets/AboutAssets.txt

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+Any raw assets you want to be deployed with your application can be placed in
+this directory (and child directories) and given a Build Action of "AndroidAsset".
+
+These files will be deployed with you package and will be accessible using Android's
+AssetManager, like this:
+
+public class ReadAsset : Activity
+{
+	protected override void OnCreate (Bundle bundle)
+	{
+		base.OnCreate (bundle);
+
+		InputStream input = Assets.Open ("my_asset.txt");
+	}
+}
+
+Additionally, some Android functions will automatically load asset files:
+
+Typeface tf = Typeface.CreateFromAsset (Context.Assets, "fonts/samplefont.ttf");

Sample/GMapUtilityDemo/ClusterItem.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+using Android.App;
+using Android.Content;
+using Android.Gms.Maps.Model;
+using Android.OS;
+using Android.Runtime;
+using Android.Views;
+using Android.Widget;
+using Com.Google.Maps.Android.Clustering;
+
+namespace GMapUtilityDemo
+{
+    public class ClusterItem : Java.Lang.Object, IClusterItem
+    {
+        public ClusterItem(Tree tree)
+        {
+            Tree = tree;
+            Position = new LatLng(tree.Lat, tree.Lon);
+            Title = tree.Name;
+            Snippet = tree.Description;
+        }
+
+        public ClusterItem(IntPtr handle, Android.Runtime.JniHandleOwnership transfer)
+            : base(handle, transfer)
+        {
+
+        }
+
+        public LatLng Position { get; set; }
+
+        public string Snippet { get; set; }
+
+        public string Title { get; set; }
+
+        public Tree Tree { get; set; } 
+    }
+}

Sample/GMapUtilityDemo/MainActivity.cs

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+using Android.App;
+using Android.OS;
+using Android.Gms.Maps;
+using Com.Google.Maps.Android.Clustering;
+
+namespace GMapUtilityDemo
+{
+    [Activity(Label = "GoogleMapUtilityDemo", MainLauncher = true)]
+    public class MainActivity : Activity, IOnMapReadyCallback
+    {
+        private GoogleMap _map;
+        private ClusterManager _clusterManager;
+
+
+        protected override void OnCreate(Bundle savedInstanceState)
+        {
+            base.OnCreate(savedInstanceState);
+
+            SetContentView(Resource.Layout.Map);
+
+            MapFragment mapFragment = (MapFragment)FragmentManager.FindFragmentById(Resource.Id.map);
+            mapFragment.GetMapAsync(this);
+        }
+
+
+        /// <summary>
+        /// Called when map is ready.
+        /// </summary>
+        /// <param name="googleMap">The google map.</param>
+        public void OnMapReady(GoogleMap googleMap)
+        {
+            _map = googleMap;
+
+            if (_map != null)
+            {
+                // Initializing and setting up the ClusterManager and calling AddClusterItem method.
+                _clusterManager = new ClusterManager(this, _map);
+                _map.SetOnCameraIdleListener(_clusterManager);
+                _map.SetOnMarkerClickListener(_clusterManager);
+
+                AddClusterItems();
+            }
+        }
+
+
+        /// <summary>
+        /// Adds the cluster item to the ClusterManager. 
+        /// Example method from: https://developers.google.com/maps/documentation/android-api/utility/marker-clustering
+        /// </summary>
+        private void AddClusterItems()
+        {
+            // Set some lat/lng coordinates to start with.
+            double lat = 51.5145160;
+            double lng = -0.1270060;
+
+            // Add ten cluster items in close proximity, for purposes of this example.
+            for (int i = 0; i < 10; i++)
+            {
+                double offset = i / 60d;
+                lat = lat + offset;
+                lng = lng + offset;
+
+                Tree tree = new Tree("Tree", lat, lng, "This is tree");
+
+                _clusterManager.AddItem(new ClusterItem(tree));
+            }
+        }
+    }
+
+}
+

Sample/GMapUtilityDemo/Properties/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="GMapUtilityDemo.GMapUtilityDemo" android:versionCode="1" android:versionName="1.0" android:installLocation="auto">
+	<uses-sdk android:minSdkVersion="18" android:targetSdkVersion="24" />
+  <uses-feature android:glEsVersion="0x00020000" android:required="true" />
+
+  <!-- Permissions -->
+	<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
+	<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
+	<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+	<uses-permission android:name="android.permission.INTERNET" />
+  <uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
+
+	<application android:allowBackup="true" android:label="@string/app_name">
+    <meta-data android:name="com.google.android.maps.v2.API_KEY" android:value="AIzaSyDzdKs7IFNVpiWeO-Aca2P0_RgE38330dU"/>
+  </application>
+
+</manifest>

Sample/GMapUtilityDemo/Properties/AssemblyInfo.cs

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+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+using Android.App;
+
+// General Information about an assembly is controlled through the following 
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("GMapUtilityDemo")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("GMapUtilityDemo")]
+[assembly: AssemblyCopyright("Copyright ©  2017")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+[assembly: ComVisible(false)]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version 
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers 
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

Sample/GMapUtilityDemo/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.axml),
+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.axml
+
+    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 "R" 
+(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 R class would expose:
+
+public class R {
+    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 R.drawable.icon to reference the drawable/icon.png file, or R.layout.main 
+to reference the layout/main.axml file, or R.strings.first_string to reference the first 
+string in the dictionary file values/strings.xml.

Sample/GMapUtilityDemo/Resources/layout/Map.axml

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+<?xml version="1.0" encoding="utf-8"?>
+<fragment xmlns:android="http://schemas.android.com/apk/res/android"
+    android:name="com.google.android.gms.maps.MapFragment"
+    android:id="@+id/map"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"/>

Sample/GMapUtilityDemo/Resources/values/Strings.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+  <string name="app_name">GMapUtilityDemo</string>
+</resources>

Sample/GMapUtilityDemo/Tree.cs

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+namespace GMapUtilityDemo
+{
+    public class Tree
+    {
+        public Tree(string name, double lat, double lon, string description)
+        {
+            Name = name;
+            Lat = lat;
+            Lon = lon;
+            Description = description;
+        }
+
+        public string Name { get; set; }
+        public double Lat { get; set; }
+        public double Lon { get; set; }
+        public string Description { get; set; }
+    }
+}

Sample/GMapUtilityDemo/packages.config

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+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="Xamarin.Android.Arch.Core.Common" version="1.0.0" targetFramework="monoandroid80" />
+  <package id="Xamarin.Android.Arch.Lifecycle.Common" version="1.0.1" targetFramework="monoandroid80" />
+  <package id="Xamarin.Android.Arch.Lifecycle.Runtime" version="1.0.0" targetFramework="monoandroid80" />
+  <package id="Xamarin.Android.Maps.Utils" version="0.5.0" targetFramework="monoandroid80" />
+  <package id="Xamarin.Android.Support.Annotations" version="26.1.0.1" targetFramework="monoandroid80" />
+  <package id="Xamarin.Android.Support.Compat" version="26.1.0.1" targetFramework="monoandroid80" />
+  <package id="Xamarin.Android.Support.Core.UI" version="26.1.0.1" targetFramework="monoandroid80" />
+  <package id="Xamarin.Android.Support.Core.Utils" version="26.1.0.1" targetFramework="monoandroid80" />
+  <package id="Xamarin.Android.Support.Fragment" version="26.1.0.1" targetFramework="monoandroid80" />
+  <package id="Xamarin.Android.Support.Media.Compat" version="26.1.0.1" targetFramework="monoandroid80" />
+  <package id="Xamarin.Build.Download" version="0.4.7" targetFramework="monoandroid80" />
+  <package id="Xamarin.GooglePlayServices.Base" version="60.1142.0" targetFramework="monoandroid80" />
+  <package id="Xamarin.GooglePlayServices.Basement" version="60.1142.0" targetFramework="monoandroid80" />
+  <package id="Xamarin.GooglePlayServices.Maps" version="60.1142.0" targetFramework="monoandroid80" />
+  <package id="Xamarin.GooglePlayServices.Tasks" version="60.1142.0" targetFramework="monoandroid80" />
+</packages>