the three common use cases to use the intent are -
- using for activity - this can be triggered by calling startActivity() method which invokes the activity we want to move in.
- using for service - this can be used to trigger a service by using intent. to use this you need to call startService() method.
- using for broadcasting- Intents can be used to broadcast message for example by using sendBroadcast() or sendStickyBroadcast().
