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# EKCalendarChooser

A view controller for determining whether a user may select one or more calendars.

```
class EKCalendarChooser
```

## Overview

Use the calendar chooser view controller to allow users to select one or more calendars when creating or editing a calendar event. The calendar chooser also lets you specify whether to display all calendars, or only those that may be written to. The view controller can be pushed on a navigation stack or presented modally.

Use a delegate that conforms to [`EKCalendarChooserDelegate`](/documentation/EventKitUI/EKCalendarChooserDelegate) to receive callbacks when the user selects calendars or cancels an operation.

## Topics

### Initializing Calendar Choosers

[`-  initWithSelectionStyle:displayStyle:eventStore:`](/documentation/EventKitUI/EKCalendarChooser/init(selectionStyle:displayStyle:eventStore:))

Initializes a newly created calendar chooser.

[`-  initWithSelectionStyle:displayStyle:entityType:eventStore:`](/documentation/EventKitUI/EKCalendarChooser/init(selectionStyle:displayStyle:entityType:eventStore:))

Initializes a newly created calendar chooser for a specific entity type.

### Managing Calendar Selection

[`delegate`](/documentation/EventKitUI/EKCalendarChooser/delegate)

The calendar chooser’s delegate.

[`EKCalendarChooserDelegate`](/documentation/EventKitUI/EKCalendarChooserDelegate)

Methods a calendar chooser’s delegate may use to receive notifications.

### Selecting a Calendar Type

[`selectedCalendars`](/documentation/EventKitUI/EKCalendarChooser/selectedCalendars)

The calendars selected by the user.

[`selectionStyle`](/documentation/EventKitUI/EKCalendarChooser/selectionStyle)

Determines whether to allow selection of multiple calendars.

[`EKCalendarChooserSelectionStyle`](/documentation/EventKitUI/EKCalendarChooserSelectionStyle)

Indicates whether users may select a single calendar, or multiple calendars.

[`EKCalendarChooserDisplayStyle`](/documentation/EventKitUI/EKCalendarChooserDisplayStyle)

Indicates whether to display all calendars or writable calendars only.

### Changing the Appearance

[`showsCancelButton`](/documentation/EventKitUI/EKCalendarChooser/showsCancelButton)

A Boolean that determines whether to display a Cancel button.

[`showsDoneButton`](/documentation/EventKitUI/EKCalendarChooser/showsDoneButton)

A Boolean that determines whether to display a Done button.

## Relationships

### Conforms To

[`NSObjectProtocol`](/documentation/ObjectiveC/NSObjectProtocol)

[`NSTouchBarProvider`](/documentation/AppKit/NSTouchBarProvider)

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

[`UITraitEnvironment`](/documentation/UIKit/UITraitEnvironment)

[`NSExtensionRequestHandling`](/documentation/Foundation/NSExtensionRequestHandling)

[`NSCoding`](/documentation/Foundation/NSCoding)

[`UIAppearanceContainer`](/documentation/UIKit/UIAppearanceContainer)

[`Hashable`](/documentation/Swift/Hashable)

[`UITraitChangeObservable-67e94`](/documentation/UIKit/UITraitChangeObservable-67e94)

[`UIActivityItemsConfigurationProviding`](/documentation/UIKit/UIActivityItemsConfigurationProviding)

[`Equatable`](/documentation/Swift/Equatable)

[`CustomStringConvertible`](/documentation/Swift/CustomStringConvertible)

[`Sendable`](/documentation/Swift/Sendable)

[`UIResponderStandardEditActions`](/documentation/UIKit/UIResponderStandardEditActions)

[`UIUserActivityRestoring`](/documentation/UIKit/UIUserActivityRestoring)

[`UIContentContainer`](/documentation/UIKit/UIContentContainer)

[`CVarArg`](/documentation/Swift/CVarArg)

[`CustomDebugStringConvertible`](/documentation/Swift/CustomDebugStringConvertible)

[`UIFocusEnvironment`](/documentation/UIKit/UIFocusEnvironment)

[`UIStateRestoring`](/documentation/UIKit/UIStateRestoring)

[`UIPasteConfigurationSupporting`](/documentation/UIKit/UIPasteConfigurationSupporting)

### Inherits From

[`UIViewController`](/documentation/UIKit/UIViewController)

---

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