content: package com.example.app_login;
  
  import android.app.Service;
  import android.content.Intent;
  import android.os.IBinder;
  import android.support.annotation.Nullable;
  
  import java.util.logging.Handler;
  
  /*public class MyBackgroundService extends Service {
  
      private Handler handler = new Handler();
      private Runnable runnable;
      private String lastData = "";
  
  
  
      @Override
      public void onCreate()
      {
          super.onCreate();
          // Define the runnable that will periodically check the database
          runnable = new Runnable()
          {
              @Override
              public void run()
              {
                  // Check the database for new data
                  String newData = fetchDataFromDatabase();
                  // If new data is available, send a notification and update the activity
                  if (!newData.equals(lastData))
                  {
                      sendNotification(newData);
                      updateActivity(newData);
                      lastData = newData;
                  }
  
                  // Schedule the next check in 1 minute
                  handler.postDelayed(this, 60 * 1000);
              }
          };
      }
  
  
  
      @Override
      public int onStartCommand(Intent intent, int flags, int startId)
      {
          // Start the service
          handler.post(runnable);
          return START_STICKY;
      }
  
  
  
      @Override
      public void onDestroy()
      {
          super.onDestroy();
          // Stop the service
          handler.removeCallbacks(runnable);
      }
  
  
      private String fetchDataFromDatabase()
      {
          // Connect to the database using PHP or some other server-side language
          // and retrieve the latest data
          // ...
          return latestData;
      }
  
  
  
      private void sendNotification(String newData)
      {
          // Create a notification with the new data and send it
          // ...
      }
  
  
  
      private void updateActivity(String newData)
      {
          // Broadcast an intent with the new data that the activity can receive
          Intent intent = new Intent("com.example.myapp.NEW_DATA");
          intent.putExtra("data", newData);
          sendBroadcast(intent);
      }
  
  
      @Nullable
      @Override
      public IBinder onBind(Intent intent)
      {
          return null;
      }
  
  
  }
  */
  