apple.uikit.protocol

Interface UITraitEnvironment

All Known Implementing Classes:

ABNewPersonViewController, ABPeoplePickerNavigationController, ABPersonViewController, ABUnknownPersonViewController, ARCoachingOverlayView, ARSCNView, ARSKView, ASAccountAuthenticationModificationViewController, ASAuthorizationAppleIDButton, ASCredentialProviderViewController, AUViewController, AVPictureInPictureVideoCallViewController, AVPlayerViewController, AVRoutePickerView, BCChatButton, CABTMIDICentralViewController, CABTMIDILocalPeripheralViewController, CAInterAppAudioSwitcherView, CAInterAppAudioTransportView, CLLocationButton, CNContactPickerViewController, CNContactViewController, CPWindow, EKCalendarChooser, EKEventEditViewController, EKEventViewController, FPUIActionExtensionViewController, GCEventViewController, GKAchievementViewController, GKFriendRequestComposeViewController, GKGameCenterViewController, GKLeaderboardViewController, GKMatchmakerViewController, GKTurnBasedMatchmakerViewController, GLKView, GLKViewController, HKActivityRingView, HMCameraView, ILClassificationUIExtensionViewController, INUIAddVoiceShortcutButton, INUIAddVoiceShortcutViewController, INUIEditVoiceShortcutViewController, LPLinkView, MCBrowserViewController, MFMailComposeViewController, MFMessageComposeViewController, MKAnnotationView, MKCircleView, MKCompassButton, MKMapView, MKMarkerAnnotationView, MKOverlayPathView, MKOverlayView, MKPinAnnotationView, MKPolygonView, MKPolylineView, MKScaleView, MKUserLocationView, MKUserTrackingButton, MPMediaPickerController, MPMoviePlayerViewController, MPVolumeView, MSMessagesAppViewController, MSStickerBrowserView, MSStickerBrowserViewController, MSStickerView, MTKView, PDFThumbnailView, PDFView, PHLivePhotoView, PHPickerViewController, PKAddPassButton, PKAddPassesViewController, PKAddPaymentPassViewController, PKAddSecureElementPassViewController, PKCanvasView, PKPaymentAuthorizationViewController, PKPaymentButton, QLPreviewController, RPBroadcastActivityViewController, RPPreviewViewController, RPSystemBroadcastPickerView, SCNView, SFSafariViewController, SKCloudServiceSetupViewController, SKStoreProductViewController, SKView, SLComposeServiceViewController, SLComposeViewController, STWebpageController, TWTweetComposeViewController, UIActionSheet, UIActivityIndicatorView, UIActivityViewController, UIAlertController, UIAlertView, UIButton, UICloudSharingController, UICollectionReusableView, UICollectionView, UICollectionViewCell, UICollectionViewController, UICollectionViewListCell, UIColorPickerViewController, UIColorWell, UIControl, UIDatePicker, UIDocumentBrowserViewController, UIDocumentMenuViewController, UIDocumentPickerExtensionViewController, UIDocumentPickerViewController, UIEventAttributionView, UIFontPickerViewController, UIImagePickerController, UIImageView, UIInputView, UIInputViewController, UILabel, UIListContentView, UINavigationBar, UINavigationController, UIPageControl, UIPageViewController, UIPickerView, UIPopoverBackgroundView, UIPopoverPresentationController, UIPresentationController, UIProgressView, UIReferenceLibraryViewController, UIRefreshControl, UIScreen, UIScrollView, UISearchBar, UISearchContainerViewController, UISearchController, UISearchTextField, UISegmentedControl, UISheetPresentationController, UISlider, UISplitViewController, UIStackView, UIStepper, UISwitch, UITabBar, UITabBarController, UITableView, UITableViewCell, UITableViewController, UITableViewHeaderFooterView, UITextField, UITextView, UIToolbar, UIVideoEditorController, UIView, UIViewController, UIVisualEffectView, UIWebView, UIWindow, VNDocumentCameraViewController, WKWebView

public interface UITraitEnvironment

Trait environments expose a trait collection that describes their environment.

Method Summary

Modifier and Type	Method and Description
UITraitCollection	traitCollection()
void	traitCollectionDidChange(UITraitCollection previousTraitCollection) To be overridden as needed to provide custom behavior when the environment's traits change.

Method Detail

traitCollection

UITraitCollection traitCollection()

traitCollectionDidChange

void traitCollectionDidChange(UITraitCollection previousTraitCollection)

To be overridden as needed to provide custom behavior when the environment's traits change.