# ManagingContactsUI: Using ContactsUI View Controllers and Properties

This sample is a set of iOS sample code projects that demonstrates how to use

ContactsUI view controllers and properties.

## ContactPickerViewController

ContactsPickerViewController demonstrates how to:

+ Implement single and multiselection of contacts using CNContactPickerViewController.

+ Implement single and multiselection of properties using CNContactPickerViewController.

+ Use the displayedPropertyKeys property.

## ContactPickerViewControllerWithPredicates

ContactPickerViewControllerWithPredicates demonstrates how to use the

predicateForEnablingContact:, predicate​For​Selection​Of​Contact, and 

predicateForSelectionOfProperty: properties for selecting contacts and properties.

## ContactViewController 

ContactViewController demonstrates how to:  

+ Create and display a new contact, an unknown contact, or existing contact using

  CNContactViewController.

+ Dismiss CNContactViewController when using init(for​New​Contact:​) to create a new 

  contact.

+ Use the allowsEditing and allowsActions properties.

+ Use the highlight​Property(with​Key:​identifier:​) property to highlight a contact's 

  property (iPhone number).

+ Prevent users from performing default actions such as dialing a phone number 

  associated with a selected contact.

## Requirements

### Build

Xcode 8.3 or later; iOS 10.3 SDK or later

### Runtime

iOS 9.3 or later

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