I am in need to initiate a connection after an application is closed - onDestroy() is called and the app is no longer visible.
MainActivity initiates a service in the
@Override
public void onCreate(Bundle savedInstanceState){
if(savedInstanceState == null) {
startService(new Intent(MainActivity.this, MqttService.class));
}
The service initiates the MQTT connection via an AsyncTask.
@Override
public int onStartCommand(Intent intent, int flags, int startId){
Notification note = createNotification();
//startForeground(20, note);
new MqttTask().execute(CONNECT_RETRIES);
return START_REDELIVER_INTENT;
}
The MQTT connection is kept alive as long as the application is kept alive because the service is also ready. The service also implements some callback methods which I am in need of use, specifically:
@Override
public void messageArrived(String s, MqttMessage mqttMessage) throws Exception {
My goal is to allow the connection to be alive even when the application is closed, so that the user can receive messages via the connection without having the app open. I guess the idea is to reconnect when the app is destroyed
What I've tried:
1) I don't like this solution because, though it works, it provides an annoying notification for the user
startForeground(23, createNotification());
2) I've attempted to use an AlarmManager to call startService(MqttService.class) on a certain interval though according to the best practices this is not recommended.
3) I've looked at the https://developer.android.com/training/sync-adapters/creating-sync-adapter.html however this seems more a "connect-once" rather than a continued and established connection.
Any ideas?
