Option to not open the app when notification is selected / clicked / tapped

[flaubertagu]

Hi,
So far, this is an awesome plugin. Thank you.
I would like to know if there is a possibility to not open the app when the notification is clicked by the user?

The use case issue is that if the application is already running on Windows, and the notification is selected, the application will reopened.
This could created some issues in some cases.

Plugin version : 11.0.1-preview01

[bryanp-ramosoil]

I had the same problem. You need to tap into the LifecycleEvents. Here's what I did to get around the issue. I'm pretty sure that's all you will need. Sorry but I couldn't find the original post where I found this solution. Hope this helps.

Add this to MauiProgram.cs

            .ConfigureLifecycleEvents(lifecycle =>
            {
#if WINDOWS
                // This is needed to ensure a single instance of the application
                lifecycle.AddWindows(windows =>
                {
                    windows.OnAppInstanceActivated((sender, e) =>
                        HandleAppActions((e.Data as Windows.ApplicationModel.Activation.LaunchActivatedEventArgs)?.Arguments));
                });
#endif
            })
            .ConfigureEssentials(essentials =>
            {
                if (AppActions.Current.IsSupported)
                {
                    essentials
                        .AddAppAction("appicon", "Present the app again", icon: "appicon")
                        .OnAppAction(HandleAppActions);
                }
            });

    #region Windows only issue ... Ensure single instance of application

    // this event will run for old app instances ensuring we run a single instance of the app
#if WINDOWS
    private static void HandleAppActions(string? arguments) => HandleAppAction(AppActionsHelper.GetAppActionId(arguments));
#endif

    // this event will run for new app instances
    private static void HandleAppActions(AppAction appAction) => HandleAppAction(appAction.Id);

    private static void HandleAppAction(string? appActionId)
    {        
        if (Application.Current is not App app)
            return;
    }

    #endregion

Add 2 new class to Platforms -> Windows

"AppActionsHelper.cs"

using System.Text;

namespace Microsoft.Maui.ApplicationModel;
{
  static class AppActionsHelper
  {
      const string AppActionPrefix = "XE_APP_ACTIONS-";
  
      public static string? GetAppActionId(string? arguments)
      {
          if (arguments?.StartsWith(AppActionPrefix) ?? false)
              return Encoding.Default.GetString(Convert.FromBase64String(arguments.Substring(AppActionPrefix.Length)));
  
          return default;
      }
  }
}

"WindowsLifecycleExtensions.cs"

using Microsoft.Windows.AppLifecycle;

namespace Microsoft.Maui.LifecycleEvents;
{
  delegate void OnAppInstanceActivated(object? sender, AppActivationArguments e);
  
  static class WindowsLifecycleExtensions
  {
      public static IWindowsLifecycleBuilder OnAppInstanceActivated(this IWindowsLifecycleBuilder builder, OnAppInstanceActivated handler)
      {
          builder.AddEvent(nameof(OnAppInstanceActivated), handler);
          return builder;
      }
  
      public static void OnAppInstanceActivated(this ILifecycleEventService lifecycle, object? sender, AppActivationArguments e)
      {
          lifecycle.InvokeEvents<OnAppInstanceActivated>(nameof(OnAppInstanceActivated), del => del(sender, e));
      }
  }
}

[flaubertagu]

Thank you very much for the tips.
I will try to apply it. Hope it will work perfectly.