// BroadcastReceiver sample class 
public class NetworkChangeReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context,Intent intent) {
        Log.i("??????","Working fine");
    }
}


// workers class 
class WorkSample(context: Context,workerParams: WorkerParameters) :  Worker(context,workerParams) {
    override fun doWork(): Result {

       // BroadcastReceiver class
         NetworkChangeReceiver()

         return Result.success()
     }

 }


//Activity  
button.setOnClickListener {
     // request of workmanager 
     val constraints  = Constraints.Builder().setrequiredNetworkType(NetworkType.CONNECTED).build()

     val OneTimeWorkRequest = OneTimeWorkRequest.Builder(WorkSample::class.java).setConstraints(constraints).build()
     WorkManager.getInstance().enqueue(OneTimeWorkRequest)
}