We're only going to look at a small subset of this topic: Intent Services.

* Once the service is done its work - it will send a response back via an Broadcast Intent

** Which means we'll need to register to receive those in our activity. We'll create an IntentFilter and a BroadcastReceiver in Java and register them with LocalBroadcastManager.getInstance(this).registerReceiver().

= Reading incoming SMS =

= Sending email =