The Activity Manager Service handles the lifecycle of all Activities running in the application.
It is one of the more important System Services of Android.
It is part of the System Server Process, along with the rest of the many services managers.
It runs the system server process in Android, filters events, and gives them to the intent handlers
Makes sure the intents get from the producers to the designated consumers
Implements the Intent framework that is used extensively throughout the system
It delivers the intents to registered broadcast receivers