IUIFocusItem Interface

Reference

Definition

Namespace:: UIKit

Assembly:: Xamarin.iOS.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Interface that defines the CanBecomeFocused method.

[Foundation.Protocol(Name="UIFocusItem", WrapperType=typeof(UIKit.UIFocusItemWrapper))]
[ObjCRuntime.Introduced(ObjCRuntime.PlatformName.iOS, 10, 0, ObjCRuntime.PlatformArchitecture.All, null)]
public interface IUIFocusItem : IDisposable, UIKit.IUIFocusEnvironment

type IUIFocusItem = interface
    interface INativeObject
    interface IDisposable
    interface IUIFocusEnvironment

Derived: UIKit.UIView

Attributes: ProtocolAttribute IntroducedAttribute

Implements: INativeObject IDisposable IUIFocusEnvironment

Properties

CanBecomeFocused
Handle	Handle (pointer) to the unmanaged object representation. (Inherited from INativeObject)
PreferredFocusedView	If not `null`, indicates the child UIView that should receive focus by default. (Inherited from IUIFocusEnvironment)

Methods

DidUpdateFocus(UIFocusUpdateContext, UIFocusAnimationCoordinator)	Delegate method called shortly after focus has changed to a new UIView. (Inherited from IUIFocusEnvironment)
SetNeedsFocusUpdate()	When `this` is the active focus environment, requests a focus update, which can potentially change the PreferredFocusedView. (See also UpdateFocusIfNeeded().) (Inherited from IUIFocusEnvironment)
ShouldUpdateFocus(UIFocusUpdateContext)	Called prior to the current object either losing or receiving focus. If either focus environment returns `false`, the focus update is canceled. (Inherited from IUIFocusEnvironment)
UpdateFocusIfNeeded()	If any focus environment has a pending update, this method forces an immediate focus update. Unlike SetNeedsFocusUpdate(), this method may be called by any IUIFocusEnvironment, whether it currently contains focus or not. (Inherited from IUIFocusEnvironment)

Extension Methods

GetFocusItemContainer(IUIFocusEnvironment)	Gets the focus container for the environment.
GetParentFocusEnvironment(IUIFocusEnvironment)	Gets the parent focus environment.
GetPreferredFocusEnvironments(IUIFocusEnvironment)	Gets the list of focus environments, ordered by priority, that the environment prefers when updating the focus.
DidHintFocusMovement(IUIFocusItem, UIFocusMovementHint)	Called when a focus change may soon happen.
GetFrame(IUIFocusItem)	Returns the frame in the reference coordinate space of the containing IUIFocusItemContainer.

Applies to

Bagikan melalui