Auto call function after some time with service

Question

I would like to call a function with a api method to @Post some information like registered token from notifications (FCM). When application will be killed it also should be triggered. What is the best way to achieve this feature and could I use somehow notification service to make it or should I make another service like in this example below.

Android: keep Service running when app is killed

Edit 1:

    fun autoConsumingSendingToken() {
        Log.d("tokenworker", "5 AUTOCONSUMING MAINACTIVITY")
        val myWorkRequest: WorkRequest =
            PeriodicWorkRequestBuilder<AutoTokenWorker>(20, TimeUnit.SECONDS).build()

        WorkManager
            .getInstance(applicationContext)
            .enqueue(myWorkRequest)
    }

Answer 1

Your best approach to this kind of situation is to use Android WorkManager.

Essentially, you have to declare a class containing the work you want to do:

class MyWorker(appContext: Context, workerParams: WorkerParameters):
       Worker(appContext, workerParams) {

   override fun doWork(): Result {
       //call your function
       return Result.success()
   }
}

Then create and schedule your work:

val myWorkRequest: WorkRequest =
   PeriodicWorkRequestBuilder<MyWorker>(1, TimeUnit.HOURS).build()

WorkManager
    .getInstance(myContext)
    .enqueue(myWorkRequest)

You can tweak work schedule according to your needs.