Splash Activity Recipe On Xamarin Forms

splash_screen.xml

<!-- Put this on drawable folder...-->

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
  <item>
    <color android:color="@color/primary"/>
    <!--@color/primary-->
  </item>
  <item>
    <bitmap
        android:src="@drawable/applogoimage"
        android:tileMode="disabled"
        android:adjustViewBounds="true"
        android:gravity="center"/>
  </item>
</layer-list>

SplashActivity.cs

[Activity(
  Label = "YourAppName",
  //Theme = "@style/AppTheme.Splash",
  MainLauncher = true, /////PUT THIS TO FALSE ON MAIN ACTIVITY
  NoHistory = true,
  ConfigurationChanges = ConfigChanges.ScreenSize | ConfigChanges.Orientation
)]
public class SplashActivity : AppCompatActivity
{
  static readonly string TAG = "X:" + typeof(SplashActivity).Name;

  public override void OnCreate(Bundle savedInstanceState, PersistableBundle persistentState)
  {
      base.OnCreate(savedInstanceState, persistentState);
      Log.Debug(TAG, "SplashActivity.OnCreate");

  }

  protected override void OnResume()
  {
      base.OnResume();

      Task startupWork = new Task(() =>
      {
          Log.Debug(TAG, "Performing some startup work that takes a bit of time.");
          Log.Debug(TAG, "Working in the background - important stuff.");
      });

      startupWork.ContinueWith(t =>
      {
          Log.Debug(TAG, "Work is finished - start Activity1.");
          var MainIntent = new Intent(Application.Context, typeof(MainActivity)); 

          try
          {
              Log.Debug("CCCCCCCCCCCCCCCCCCCCCCC", Intent.GetStringExtra("notificationId"));

              string notificationId = Intent.Extras.GetString("notificationId");

              MainIntent.PutExtra("notificationId", Intent.GetStringExtra("notificationId"));
              Intent.RemoveExtra("notificationId");
          }
          catch (System.Exception)
          {
          }

          StartActivity(MainIntent);
      }, TaskScheduler.FromCurrentSynchronizationContext());

      startupWork.Start();
  }

style.xml

<style name="AppTheme.Splash">
  <item name="android:windowBackground">@drawable/splash_screen</item>
  <item name="android:windowNoTitle">true</item>
</style>