Foreground Service Integration

- Add Foreground Service
- Reviewed Progress Method
- Reviewed Transfer Object Integration
- Fix Some Error

app/src/main/java/com/localtransfer/TransferService.java

@@ -17,7 +17,6 @@ public class TransferService extends Service {
 
     @Override
     public int onStartCommand(Intent intent, int flags, int startId) {
-        int id = intent.getIntExtra("id", 0);
 
         Intent notificationIntent = new Intent(this, MainActivity.class);
         PendingIntent pendingIntent = PendingIntent.getActivity(this,
@@ -27,7 +26,7 @@ public class TransferService extends Service {
                 .setContentIntent(pendingIntent)
                 .build();
 
-        startForeground(id, notification);
+        startForeground(Transfer.NOTIF_SERVICE, notification);
 
         //do heavy work on a background thread
         //stopSelf();