StartService method is executed but events of Service not fires

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I have an activity which I start a service in the OnCreate method. StartService method is executed without any error, but none of the events in Service class are not fired! I test both of the explicit and implicit modes to start the service as you can see in my code, but both results were same! My codes:

Activity:

protected override void OnCreate(Bundle savedInstanceState)
{
    base.OnCreate(savedInstanceState);
    try
    {
        serviceToStart = new Intent(ApplicationContext, typeof(TrackService));
        StartService(serviceToStart);
    }
    catch(Exception e)
    {
        var ee = e;
    }
}

Track Service:

[Service(IsolatedProcess = true, enabled = true)]
public class TrackService : Service
{
    FusedLocationProviderClient fusedLocationProviderClient;

    public override void OnCreate()
    {
        base.OnCreate(); //Break point set here
    }

    public override StartCommandResult OnStartCommand(Android.Content.Intent
                 intent, StartCommandFlags flags, int startId)
    {
        fusedLocationProviderClient = 
            LocationServices
            .GetFusedLocationProviderClient(this); //Break point set here
        return StartCommandResult.Sticky;
    }

    public override IBinder OnBind(Intent intent)
    {
        return null;
    }
}

Manifest:

EDIT: Manifest manuals removed removed

Can anyone say me what's the problem?

Please mention you service in the manifest file. This is very important step because without manifest service entry your service class never initiated.

Below line of code is very important, this should be in your manifest file.

<service android:name=".TrackService" android:enabled="true"></service>

Referrer to below link for more clarification about the services - https://developer.android.com/training/run-background-service/create-service

StartService method is executed but events of Service not fires, StartService method is executed but events of Service not fires. topshelf the service did not respond to the start or control request in a timely fashion c# windows  If a service is currently stopped, you must use the StartService method to restart it; ResumeService cannot start a service that is currently stopped. If a service is paused, you must use ResumeService. If you use the StartService method on a paused service, you receive the message, "The service is already running."

1) Allow the ServiceAttribute (and the build process) to property set the manifest entry and no manual changes are needed:

[Service(IsolatedProcess = true, enabled = true)]

Note: If you wish/need to manually change the manifest, you will need to assign the Name in the ServiceAttribute to hard-code a fully-qualified package and Java class name that you can then use in your manifest

2) When starting the service, build an intent using the application context and the C# type of your service:

var serviceIntent = new Intent(ApplicationContext, typeof(TrackService));
StartService(serviceIntent);

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Finally! I found the problem root! However, I don't know why it happens and how can I resolve it!

I always got this error in logcat:

No implementation found for void mono.android.Runtime.register

After removing part by part of the code I got that the problem is caused by IsolatedProcess attribute. Just by removing it the code works well.

Note: As you can see there's no need to put enabled attribute for service too.

[Service]
public class TrackService : Service

Professional AndroidTM Application Development, Alarms provide a mechanism for firing Intents at set times, outside the control of to users, Services run in the background — updating your Content Providers, firing They are the perfect way to perform regular processing or handle events even With no visual interface, Services are started, stopped, and controlled from  If the service is already running, this method is not called. onDestroy() The system invokes this method when the service is no longer used and is being destroyed. Your service should implement this to clean up any resources such as threads, registered listeners, or receivers. This is the last call that the service receives.

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Deep Dive into Android Services, You could use AsyncTask to handle this, but what if your app needs this A Service is an Android application component without a UI that runs on the main If you want the service code to run in a Background Thread, then you must by calling the startService(Intent) method in your Activity or Service. This method should set things ' in motion so your service can do its work. gTimer.Interval = 1000 gTimer.Enabled = True AddHandler gTimer.Elapsed, AddressOf gTimer_Elapsed End Sub 'When the timer is elapsed this event will be fired Protected Sub gtimer_Elapsed(ByVal source As Object, ByVal e As ElapsedEventArgs) 'Stop the timer and do some work gTimer.Stop() 'Custom code 'Here 'Start to raise

Creating a never ending background service in Android, Not every app has a background service but some do. Which starts the service only when not already running, and You are using stopService() on your activity onDestroy method, "Remove it". The app fires a ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS Intent to trigger the dialog. Service Trigger Events. 05/31/2018; 3 minutes to read; In this article. A service can register to be started or stopped when a trigger event occurs. This eliminates the need for services to start when the system starts, or for services to poll or actively wait for an event; a service can start when it is needed, instead of starting automatically whether or not there is work to do.

Comments
  • @SushiHangover I did it, The only error which logcat shows is: No implementation found for void mono.android.Runtime.register. Is this related to service starting?
  • Not in Oncreate and StartCommandResult
  • Yes, I did it. But no result. I think there are some problems in my package name. I've moved mobile part of package name from among of it to the beginning by refactoring. I think it may cause some problems
  • When I use implicit calling service start, the mono error disappears. However, I'm testing with all possible forms of the methods in my code
  • This is Xamarin.Android based and the Service attribute on the service subclass will automatically add the manifest entry during the build process
  • My code is in Xamarin and this manifest is Java android style. In Xamarin it's enough to declare manifest as the attribute in intent classes.
  • Sorry I don't have much knowledge of Xamarin.Android but In native android java/kotlin project this is mandatory to mention service name in the manifest manually.
  • I've changed all as simple as you said. But the breakpoints (OnCreate and OnStartCommand never work!). All things seem correct but I don't know where is the problem. I made a new pure project and put this two code in it. But I don't get the result yet! :(