An object that provides information relevant to a specific focus update from one view to another.
SDKs
Framework
@interface UIFocusUpdateContext : NSObject
Focus update context objects are ephemeral and are usually discarded after the update is finished. The UIFocus APIs create a single high-level software interface for controlling focus in apps that use focus-based input.
previouslyThe view that was focused before the focus update.
nextThe view that takes the focus after the focus update.
focusThe heading in which the focus update is occurring.
UIFocusThe general type of an event.
previouslyThe item that was focused before the update.
nextThe item to be focused after the update.
UIFocusThe focus for the UI has been updated.
UIFocusThe focus failed to move to another item.
UIFocusUpdates the animation coordinator.
UIFocusUpdates the context key.
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UIFocusA set of methods that define the focus behavior for a branch of the view hierarchy.
UIFocusQueries and reevaluates the currently focused item.
UIFocusAn object that can become focused.
UIFocusProvides movement hint information for the focused item.
UIFocusThe container responsible for providing geometric context to focus items within a given focus environment.
UIFocusA type of focus item container that supports automatic scrolling of focusable content.