How to show notification from background service?

Question

The project I am working on has two different apps, 1 is server and other is client. Server app has 1 service class, which initiates server thread in onStartCommand()<

Answer 1

First you need to read this article on how to use Notifications.

Next use this to send a Notification, you can write this code in the service class at the point where you receive some data from the client.

NotificationManager notificationManager =
    (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
int icon = R.drawable.notification_icon;
CharSequence notiText = "Your notification from the service";
long meow = System.currentTimeMillis();

Notification notification = new Notification(icon, notiText, meow);

Context context = getApplicationContext();
CharSequence contentTitle = "Your notification";
CharSequence contentText = "Some data has arrived!";
Intent notificationIntent = new Intent(this, YourActivityThatYouWantToLaunch.class);
PendingIntent contentIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);

notification.setLatestEventInfo(context, contentTitle, contentText, contentIntent);

int SERVER_DATA_RECEIVED = 1;
notificationManager.notify(SERVER_DATA_RECEIVED, notification);