Xamarin Forms Maps - Android Settings

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" android:installLocation="preferExternal" package="PACKAGE_NAME" android:versionCode="1" android:versionName="1.0">
	<uses-sdk android:minSdkVersion="19" />
	<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
	<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
	<uses-permission android:name="android.permission.INTERNET" />
	<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
	<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
	<uses-permission android:name="android.permission.ACCESS_LOCATION_EXTRA_COMMANDS" />
	<uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION" />
	<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
	<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
	<application android:label="App_name" android:theme="@style/MainTheme" android:icon="@drawable/icon">
		<meta-data android:name="com.google.android.maps.v2.API_KEY" android:value="API_KEY_DO_GOOGLE_MAPS" />
		<meta-data android:name="com.google.android.gms.version" android:value="@integer/google_play_services_version" />
	</application>
</manifest>

MainActivity.cs

using Android.App;
using Android.Content.PM;
using Android.OS;
using Prism.Unity;
using Microsoft.Practices.Unity;

namespace Cliente.Droid
{
    [Activity(Label = "App_Name", Icon = "@drawable/icon", ConfigurationChanges = ConfigChanges.ScreenSize | ConfigChanges.Orientation)]
    public class MainActivity : global::Xamarin.Forms.Platform.Android.FormsAppCompatActivity
    {
        protected override void OnCreate(Bundle bundle)
        {
            TabLayoutResource = Resource.Layout.tabs;
            ToolbarResource = Resource.Layout.toolbar;

            base.OnCreate(bundle);
            global::Xamarin.Forms.Forms.SetFlags("FastRenderers_Experimental");
            global::Xamarin.Forms.Forms.Init(this, bundle);
            Xamarin.FormsMaps.Init(this, bundle);
            
            LoadApplication(new App(new AndroidInitializer()));
        }
    }

    public class AndroidInitializer : IPlatformInitializer
    {
        public void RegisterTypes(IUnityContainer container)
        {

        }
    }
}

Maps.xaml

/* Adicionar essa tag no cabecalho da contentPage*/
xmlns:maps="clr-namespace:Xamarin.Forms.Maps;assembly=Xamarin.Forms.Maps"

/* abaixo eu insiro o mapa */
<maps:Map 
                      HorizontalOptions="FillAndExpand"
                      HeightRequest="400"
                      x:Name="MyMap"
                      IsShowingUser="False"
                      MapType="Street"

Maps.xaml.cs

/* O metodo abaixo é invocado pelo MessagingCenter para que receba latitude e longitude da VM que vem da minha API*/
private void SetMapa(Empresa obj)
        {
            /* se nao houver latitude/longitude oculto o mapa */
            if(obj.Latitude == 0 || obj.Longitude == 0)
            {
                MyMap.IsVisible = false;
                return;
            }
            //gera a posição no mapa
            var position = new Position(obj.Latitude, obj.Longitude); // Latitude, Longitude
            // abaixo gera o pin com os dados a serem exibidos quando clica no pin
            var pin = new Pin
            {
                Type = PinType.Place,
                Position = position,
                Label = obj.Nome,
                Address = obj.Endereco + " - " + obj.Endereco2
            };

            MyMap.Pins.Add(pin);
            
            //a linha abaixo exibe a posicao marcada pela latitude/longitude com uma distancia de 200 mts de zoom
            MyMap.MoveToRegion(MapSpan.FromCenterAndRadius(position, Distance.FromMeters(200)));
        }