onTaskRemoved.kt

override fun onTaskRemoved(rootIntent: Intent) {
    val restartServiceIntent = Intent(applicationContext, EndlessService::class.java).also {
        it.setPackage(packageName)
    };
    val restartServicePendingIntent: PendingIntent = PendingIntent.getService(this, 1, restartServiceIntent, PendingIntent.FLAG_ONE_SHOT);
    applicationContext.getSystemService(Context.ALARM_SERVICE);
    val alarmService: AlarmManager = applicationContext.getSystemService(Context.ALARM_SERVICE) as AlarmManager;
    alarmService.set(AlarmManager.ELAPSED_REALTIME, SystemClock.elapsedRealtime() + 1000, restartServicePendingIntent);
}