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# CNContactViewControllerDelegate

Methods you use to respond to user interactions with a contact view controller.

```
protocol CNContactViewControllerDelegate : NSObjectProtocol
```

## Overview

Implement the methods of this protocol and assign the resulting object to the [`delegate`](/documentation/ContactsUI/CNContactViewController/delegate)
property of a `CNContactViewController` object.

## Topics

### Responding to User Events

[`contactViewController(_:shouldPerformDefaultActionFor:)`](/documentation/ContactsUI/CNContactViewControllerDelegate/contactViewController(_:shouldPerformDefaultActionFor:))

Called when the user selects a property.

[`contactViewController(_:didCompleteWith:)`](/documentation/ContactsUI/CNContactViewControllerDelegate/contactViewController(_:didCompleteWith:))

Called when the view has been presented.


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