How to choose your application when calling from contacts?

Question

Android

If in <intent-filter>add

<action android:name="android.intent.action.CALL"/>

and <data android:scheme="tel"/>, then when you call action_call, your application will offer. This works if you try to call a number, for example, from hangouts. The phone behaves differently, if you call from the contact list, it immediately starts ringing through the default call. How can I make my application see when calling a number from contacts?

Answer 1

The easiest way:
-you need to subscribe to the incoming call message.
-open your activity when you receive a call