Is it possible to create a foreground service with with a constructor with parameters?

[ComptonAlvaro]

Description

I have a foreground service that it needs another class to do their work. This aditional class implemets the logic that I need, executing a PeriodiTimer() to do some work every 5 minutes.

I would like to use dependency injection for that, so I am trying this:

[Service]
public class MyForegroundService : Service, IMyForegroundService
{
    private IMyService _service;

    private string NOTIFICATION_CHANNEL_ID = "1000";
    private int NOTIFICATION_ID = 1;
    private string NOTIFICATION_CHANNEL_NAME = "notification";


    #region constructores
    private MyForegroundService()
    {
    }

    public MyForegroundService(IMyService paramService)
    {
        _service = paramServicioAlarmas;
        _service.NeededNotificationEvent += OnNeededNotification;
    }


    //Rest of code to create and start the foreground. I don't show it to simplify the code because it is not needed for this question.
}

Really the constructor that I need is the constructor that receive a parameter. However, if I don't implement the default constructor, when I try to compile I get an error that tells that it is needed to have a public default constructor.

If I use the default constructor, I have to create the instance of the service that I need manually, in this way:

    private MyForegroundService()
    {
        _service = new Service(new MyHelper());
    }

And how the service needs a helper, I can't use dependency injection to instantiate the service. Al the classes neededs by the foreground service, can't use dependency injection.

So, is it possible to use a constructor with parameter to create the service?

Perhaps one solution it would be to use foreground service wrapper, that receives can use dependency injection. This wraper would create the foreground service and once it is created, set the service. But I would like to avoid to use a wrapper only to instantite the service, if it would be possible.

Thanks.

Public API Changes

It is not needed to change the API, it is a question.

Intended Use-Case

What I would liek t

[thewrath]

Hello,

I recently had the same issue. I think that the request for a default constructor without parameters is required by Android (it seems that foreground service in kotlin/java requires the same).

To solve this problem, I simply used a static dependency resolution. Here are some examples:

https://github.com/dotnet/maui-samples/blob/main/7.0/Apps/WeatherTwentyOne/src/WeatherTwentyOne/Services/ServiceExtensions.cs)

https://github.com/dotnet/maui-samples/blob/main/7.0/Apps/WeatherTwentyOne/src/WeatherTwentyOne/Pages/HomePage.xaml.cs#L49

You can call this GetService method directly in your foreground service to resolve your service, it will be perfectly instantiated with its dependencies resolved using DI.