How to detect incoming calls, in an Android device?

Question

I\'m trying to make an app like, when a call comes to the phone I want to detect the number. Below is what I tried, but it\'s not detecting incoming calls.

I want t

Answer 1

Just to update Gabe Sechan's answer. If your manifest asks for permissions to READ_CALL_LOG and READ_PHONE_STATE, onReceive will called TWICE. One of which has EXTRA_INCOMING_NUMBER in it and the other doesn't. You have to test which has it and it can occur in any order.

https://developer.android.com/reference/android/telephony/TelephonyManager.html#ACTION_PHONE_STATE_CHANGED