In Xamarin, pass the received Intent from another app between different activities in the same app

Question

I have two actions in the Xamarin App (Splash Screen Activity: com.example.splashactivity, and Main Activity: com.example.mainactivity).

In a normal scenario: the splash screen appears when the app initially launches, displaying a short animation before redirecting to the main activity.

SplashActivity.cs

[Activity(Name = "com.example.splashactivity")]
public class SplashActivity : AppCompatActivity, Animator.IAnimatorListener
{
    protected override void OnCreate(Bundle savedInstanceState)
    {
        base.OnCreate(savedInstanceState);

        // Code

        // Redirects to MainActivity
        StartActivity(new Intent(Application.Context, typeof(MainActivity)));
    }
}

But when an intent is sent from another app (let's call it Second App), the main activity is immediately opened without any animation (obviously, com.example.mainactivity is called).

Now, when I put the splash activity's name (com.example.splashactivity) into the Second App, it launches the splash screen and then redirects to the main activity. I keep the Intent Values in SecureStorage since I require them throughout the app.

When I was done with the operation, I sent a message (MessagingCenter.Send<object>()) to Splash Activity and gave it data to send back in Intent Extra, but it remained stuck there (no redirection to Second App)

[Activity(Name = "com.example.splashactivity")]
public class SplashActivity : AppCompatActivity, Animator.IAnimatorListener
{
    protected override void OnCreate(Bundle savedInstanceState)
    {
        base.OnCreate(savedInstanceState);

        // Receive Intent from Second App
        string id = Intent.GetStringExtra("id");
        if (Intent.HasExtra("id"))
        {
            await SecureStorage.SetAsync("Intent_id", id);
        }

        // Sends Intent Extra Back to Second App
        MessagingCenter.Subscribe<object>(this, "IntentBack", async (e) =>
        {
            var msg = await SecureStorage.GetAsync("IntentBack_msg");

            Intent intent = new Intent(Intent.ActionMain);
            intent.PutExtra("msg", msg);
            SetResult(Result.Ok, intent);
            Finish();
        });

        // Redirects to MainActivity
        StartActivity(new Intent(Application.Context, typeof(MainActivity)));
    }
}