Deeplink maui app response

Question

Hi, I have a problem when using deeplink, I am making the call and capturing the return, however, when executing the MainActivity create again, it is generating an error... Below is the code that calls deepLink...

using Android.Content;

namespace AppFv.Droid.Services
{
	public interface IIntentServices
	{
		public void SendPaymentIntent();
	}

	public class IntentServices : IIntentServices
	{
		public void SendPaymentIntent()
		{
			Android.Net.Uri.Builder uriBuilder = new Android.Net.Uri.Builder();
			uriBuilder.Authority("pay");
			uriBuilder.Scheme("payment-app");

			uriBuilder.AppendQueryParameter("amount", "200");
			uriBuilder.AppendQueryParameter("editable_amount", "0"); // 1 = true and 0 = false
			uriBuilder.AppendQueryParameter("transaction_type", "CREDIT"); //DEBIT, CREDIT, VOUCHER
			uriBuilder.AppendQueryParameter("installment_type", "MERCHANT"); //MERCHANT, ISSUER, NONE
			uriBuilder.AppendQueryParameter("return_scheme", "return");

			String order_id = "123";
			if (order_id != null)
			{
				uriBuilder.AppendQueryParameter("order_id", order_id);
			}

			String installment_count = "1";
			if (installment_count != null)
			{
				uriBuilder.AppendQueryParameter("installment_count", installment_count); // 2 to 99
			}
			
			Intent intent = new Intent(Intent.ActionView);
			intent.AddFlags(ActivityFlags.NewTask);
			intent.SetData(uriBuilder.Build());
			Platform.CurrentActivity.StartActivity(intent);
		}
	}
}

And here is the code that receives the return, the MainActivity...

using Android.App;
using Android.Content.PM;
using Android.Content;
using Android.OS;

namespace AppFv
{
	[Activity
		(
			Label = "AppFv",
			Theme = "@style/Maui.SplashTheme",
			MainLauncher = true,
			ConfigurationChanges = ConfigChanges.ScreenSize | ConfigChanges.Orientation
		)
	]
	[IntentFilter(new[] { Intent.ActionView },
		Categories = new[]
		{
			Intent.ActionView,
			Intent.CategoryBrowsable,
			Intent.CategoryDefault
		},
			DataScheme = "return",
			DataHost = "pay-response",
			AutoVerify = true)
	]

	public class MainActivity : MauiAppCompatActivity
	{
		protected override void OnCreate(Bundle savedInstanceState)
		{
			base.OnCreate(savedInstanceState);

			if (Intent.Action == Intent.ActionView)
			{
				OnNewIntent(Intent);
			}
		}

		protected override void OnActivityResult(int requestCode, Result resultCode, Intent data)
		{
			base.OnActivityResult(requestCode, resultCode, data);
		}

		protected override void OnNewIntent(Intent intent)
		{
			base.OnNewIntent(intent);

			var data = intent?.Data;
			var returnScheme = data?.GetQueryParameter("return_scheme");
		}
	}
}

Can someone help me?

Answer 1

Solved Problem....

I added the following line to the code

[Activity(
	Label = "AppFv",
	Theme = "@style/Maui.SplashTheme",
	MainLauncher = true,
	ConfigurationChanges = ConfigChanges.ScreenSize | ConfigChanges.Orientation,
	LaunchMode = LaunchMode.SingleTask  //<<<<<<<<<<<<<<<<<<<<<<<
)]