Experimental: this API is experimental and might be changed or removed in the future.

Focusable

class in UnityEngine.Experimental.UIElements

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继承自：Experimental.UIElements.CallbackEventHandler

描述

可获得焦点的对象的基类。

焦点用于指定将接收键盘事件的元素。

变量

canGrabFocus	如果元素可以获得焦点，则返回 true。
focusController	返回此元素的焦点控制器。
focusIndex	用于对焦点环中可获得焦点的元素排序的整数。负值表示元素不能获得焦点。

公共函数

Blur	通知元素释放焦点。
Focus	尝试让此元素获得焦点。

继承的成员

公共函数

HandleEvent	处理事件，通常是通过执行与事件关联的回调处理事件。
HasBubbleUpHandlers	Return true if event handlers for the event propagation BubbleUp phase have been attached on this object.
HasTrickleDownHandlers	Returns true if event handlers, for the event propagation TrickleDown phase, are attached to this object.
RegisterCallback	Adds an event handler to the instance. If the event handler has already been registered for the same phase (either TrickleDown or BubbleUp) then this method has no effect.
SendEvent	Sends an event to the event handler.
UnregisterCallback	从此实例删除回调。