The Contacts framework provides Swift and Objective-C API to access and create a new contact. This framework is optimized for thread-safe, read-only usage.
The contact class (CNContact) has a mutable subclass
CNMutableContact for use to modify contact properties like phone numbers, email addresses, an array of
CNLabeledValue contain label and value. Labels describe each value to the user, It allowing differentiation such as home and work for properties and you can...