StartForeground for IntentService

Matroska picture Matroska · Mar 29, 2012 · Viewed 9.7k times · Source

I have an IntentService and I want to make it sticky with an ongoing notification. The problem is that the notification appears and then disappears immediately. The service continues to run. How should I use startForeground() in an IntentService?

@Override
public int onStartCommand(Intent intent, int flags, int startId) {
    super.onStartCommand(intent, flags, startId);
    Notification notification = new Notification(R.drawable.marker, "Notification service is running",
            System.currentTimeMillis());
    Intent notificationIntent = new Intent(this, DashboardActivity.class);
    notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP|
        Intent.FLAG_ACTIVITY_SINGLE_TOP);
    PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);
    notification.setLatestEventInfo(this, "App",
            "Notification service is running", pendingIntent);
    notification.flags|=Notification.FLAG_NO_CLEAR;
    startForeground(1337, notification);
    return START_STICKY;
}

@Override
protected void onHandleIntent(Intent intent) {

    String id = intent.getStringExtra(ID);
    WebSocketConnectConfig config = new WebSocketConnectConfig();
    try {
        config.setUrl(new URI("ws://" + App.NET_ADDRESS
                + "/App/socket?id="+id));
    } catch (URISyntaxException e) {
        e.printStackTrace();
    }
    ws = SimpleSocketFactory.create(config, this);
    ws.open();
}

Thanks

Answer

CommonsWare picture CommonsWare · Mar 29, 2012

This should not be an IntentService. As written, your IntentService will live for a millisecond or so. Once onHandleIntent() returns, the service is destroyed. This should be a regular Service, where you fork your own thread and manage the lifetime of the thread and the service.

The reason your Notification is going away immediately is because the service is going away immediately.