title: Run Intentservice in background in Android O
body: <p>I start an <code>IntentService</code> from <code>MainActivity</code>. This service is responsible to initialize FCM data objects (nodes) which listen to any changes done on FCM (cloud). When there is any data changes, a push notification is triggered.</p>
  
  <p>Now since Android O does not allow service to be kept running in background, no push notification is observed. How to solve this issue?</p>