Question

I’m reading the documentation now, and I have 1 thing to be fixed – please, tell me, what is difference between broadcast receiver and activity (without the fact that activity can show UI)? Broadcast receiver gets announcements using intent-filter, but Activity can do it too! Please, make me clear. Thank you.

Answer 1

Activity is something which work on your input or require an user intruption for launching any task but with the help of broadcast reciever you can listen the system services as once a broadcast receiver is started for listening incoming calls then each time when a incoming call it will launch your method what you have written for that for more explanation check these

http://developer.android.com/reference/android/content/BroadcastReceiver.html

http://www.vogella.de/articles/AndroidServices/article.html