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→Services & Broadcast receivers
* We'll create an Intent Service as described [https://developer.android.com/training/run-background-service/create-service.html here]. The [http://developer.android.com/guide/components/services.html service overview] has a little too much information.
* They forgot to mention in the tutorial that you need to call a specific IntenService constructor, see [https://groups.google.com/forum/#!topic/android-developers/HVBnJ15amVc here].
* Then our activity (which has to be in the same project as the service) will call one function of the service with a parameter or two.
* 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().
** And since our activity may not be running at this point - we'll use a [http://developer.android.com/guide/topics/ui/notifiers/notifications.html Notification] to show that we got the message.
= Reading incoming SMS =
We can send a fake SMS to an emulator using telnet and receive it using a BroadcastReceiver. Follow [http://androidexample.com/Incomming_SMS_Broadcast_Receiver_-_Android_Example/index.php?view= Sending email article_discription&aid=62&aaid=87 this tutorial].
