https://developer.android.com/reference/android/provider/ContactsContract.ContactNameColumns?authuser=2
ContactsContract.ContactNameColumns | API reference | Android Developers
api referenceandroiddevelopers
https://developer.android.com/reference/android/provider/ContactsContract.ContactNameColumns?authuser=5
ContactsContract.ContactNameColumns | API reference | Android Developers
api referenceandroiddevelopers