用于 Adobe® Flash® Platform 的 ActionScript® 3.0 参考
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mx.managers 

IFocusManagerComponent  - AS3 Flex

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adobe.utils
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com.adobe.fiber.runtime.lib
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com.adobe.icc.dc.domain
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com.adobe.livecycle.assetmanager.client.utils
com.adobe.livecycle.content
com.adobe.livecycle.rca.model
com.adobe.livecycle.rca.model.constant
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com.adobe.livecycle.rca.token
com.adobe.livecycle.ria.security.api
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com.adobe.mosaic.layouts
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com.adobe.mosaic.mxml
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com.adobe.solutions.acm.authoring.presentation
com.adobe.solutions.acm.authoring.presentation.actionbar
com.adobe.solutions.acm.authoring.presentation.common
com.adobe.solutions.acm.authoring.presentation.events
com.adobe.solutions.acm.authoring.presentation.fragment
com.adobe.solutions.acm.authoring.presentation.letter
com.adobe.solutions.acm.authoring.presentation.letter.data
com.adobe.solutions.acm.authoring.presentation.preview
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com.adobe.solutions.acm.ccr.presentation.contentcapture.events
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com.adobe.solutions.acm.ccr.presentation.datacapture.renderers
com.adobe.solutions.acm.ccr.presentation.pdf
com.adobe.solutions.exm
com.adobe.solutions.exm.authoring
com.adobe.solutions.exm.authoring.components.controls
com.adobe.solutions.exm.authoring.components.toolbars
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com.adobe.solutions.exm.expression
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com.adobe.solutions.exm.variable
com.adobe.solutions.prm.constant
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com.adobe.solutions.prm.presentation.document
com.adobe.solutions.prm.presentation.event
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com.adobe.solutions.prm.presentation.project
com.adobe.solutions.prm.presentation.team
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com.adobe.solutions.rca.presentation
com.adobe.solutions.rca.presentation.comment
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com.adobe.solutions.rca.presentation.gantt
com.adobe.solutions.rca.presentation.gantt.ruler
com.adobe.solutions.rca.presentation.template
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fl.accessibility
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不推荐使用的元素的列表
AccessibilityImplementation 常量
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法律声明
mx.managers
接口public interface IFocusManagerComponent
实现器 AccessibleText, Accordion, AdvancedListBase, Button, ButtonBar, ButtonBar, ButtonBase, ChartBase, ComboBase, DataGrid, DateChooser, DateField, HTML, List, ListBase, MenuBar, NumericStepper, NumericStepper, OneLevelPanelNavigator, PanelItem, PromoImage, PromoSWFLoader, RadioButtonList, RichEditableText, Scroller, SkinnableTextBase, SliderBase, Spinner, TabBar, TabNavigator, TextArea, UIMovieClip, ViewMenu

语言版本: ActionScript 3.0
产品版本: Flex 3
运行时版本: Flash Player 9, AIR 1.1

IFocusManagerComponent 接口用于定义一些接口,可获得焦点的组件必须实现这些接口才能从 FocusManager 获得焦点。UIComponent 类中提供了此接口的基本实现,但 UIComponent 并不实现完整的 IFocusManagerComponent 接口,因为部分 UIComponent 无需获得焦点。因此,要使 UIComponent 派生的组件成为一个可获得焦点的有效组件,只需将“implements IFocusManagerComponent”添加到类定义即可。



公共属性
 属性由以下参数定义
  focusEnabled : Boolean
一个标志,用于指示组件处于选中状态时是否可以获得焦点。
IFocusManagerComponent
  hasFocusableChildren : Boolean
一个标志,指示子对象是否能够获得焦点。
IFocusManagerComponent
  mouseFocusEnabled : Boolean
[只读] 一个标志,用于当使用鼠标选中组件时组件是否可以获得焦点。
IFocusManagerComponent
  tabFocusEnabled : Boolean
[只读] 一个标志,指示通过按 Tab 键最终是否能够将焦点移动到此组件。
IFocusManagerComponent
  tabIndex : int
如果 tabFocusEnabled 为 true,则为组件获得焦点的顺序。
IFocusManagerComponent
公共方法
 方法由以下参数定义
  
当组件获得焦点时,由 FocusManager 调用。
IFocusManagerComponent
  
当组件获得焦点时,由 FocusManager 调用。
IFocusManagerComponent
属性详细信息

focusEnabled

属性
focusEnabled:Boolean

语言版本: ActionScript 3.0
产品版本: Flex 3
运行时版本: Flash Player 9, AIR 1.1

一个标志,用于指示组件处于选中状态时是否可以获得焦点。

如果组件中的子组件实现了 IFocusManagerComponent 接口,但是您从不希望它获得焦点,作为一种优化,您可以先将 focusEnabled 设置为 false,然后再在子组件上调用 addChild()

这将使 FocusManager 忽略此组件,并且使它不会对组件进行监视以查看 tabFocusEnabledhasFocusableChildrenmouseFocusEnabled 属性是否发生更改。这也意味着 addChild() 之后,您无法更改此值,也不能指望 FocusManager 进行监视。

注意:这并不意味着您无法在 setFocus() 方法中以编程方式使此对象获得焦点;它仅通知 FocusManager 在 Tab 和鼠标搜索中忽略此 IFocusManagerComponent 组件。



实现
    public function get focusEnabled():Boolean
    public function set focusEnabled(value:Boolean):void

hasFocusableChildren

属性 
hasFocusableChildren:Boolean

语言版本: ActionScript 3.0
产品版本: Flex 4
运行时版本: Flash Player 10, AIR 1.5

一个标志,指示子对象是否能够获得焦点。

注意:此属性与 Flash Player 使用的 tabChildren 属性类似。应该将 hasFocusableChildren 属性用于 Flex 应用程序。请勿使用 tabChildren 属性。

此属性通常为 false,因为大多数组件既可以自己获得焦点,也可以委托单个内部子组件获得焦点(但显示为该组件获得了焦点)。例如,TextInput 控件包含一个可成为焦点的 RichEditableText 子控件,但实际上当 RichEditableText 子组件获得焦点时,却显示为 TextInput 获得了焦点。TextInput 将 hasFocusableChildren 设置为 false,因为获得焦点的组件为 TextInput。其内部结构是一个抽象概念。

通常只有像 TabNavigator 和 Accordion 这样的导航器组件将此标志设置为 true,因为它们在按 Tab 键时获得了焦点,但焦点会在进一步按 Tab 键时转移到子容器的组件中。

默认值为 false,spark.components.Scroller 组件除外。对于该组件,默认值为 true



实现
    public function get hasFocusableChildren():Boolean
    public function set hasFocusableChildren(value:Boolean):void

mouseFocusEnabled

属性 
mouseFocusEnabled:Boolean  [只读]

语言版本: ActionScript 3.0
产品版本: Flex 3
运行时版本: Flash Player 9, AIR 1.1

一个标志,用于当使用鼠标选中组件时组件是否可以获得焦点。如果为 false,焦点将转移到第一个 mouseFocusEnabled 父项。



实现
    public function get mouseFocusEnabled():Boolean

tabFocusEnabled

属性 
tabFocusEnabled:Boolean  [只读]

语言版本: ActionScript 3.0
产品版本: Flex 4
运行时版本: Flash Player 10, AIR 1.5

一个标志,指示通过按 Tab 键最终是否能够将焦点移动到此组件。即使为 false,您也可以通过使用鼠标进行选择或通过调用 setFocus() 获得焦点。此属性替换 InteractiveObject.tabEnabled,后者在 Flex 应用程序中必须设置为 true。



实现
    public function get tabFocusEnabled():Boolean

tabIndex

属性 
tabIndex:int

语言版本: ActionScript 3.0
产品版本: Flex 3
运行时版本: Flash Player 9, AIR 1.1

如果 tabFocusEnabled 为 true,则为组件获得焦点的顺序。如果为 -1,则组件按 z 轴顺序获得焦点。



实现
    public function get tabIndex():int
    public function set tabIndex(value:int):void
方法详细信息

drawFocus

()方法
public function drawFocus(isFocused:Boolean):void

语言版本: ActionScript 3.0
产品版本: Flex 3
运行时版本: Flash Player 9, AIR 1.1

当组件获得焦点时,由 FocusManager 调用。组件应该绘制或隐藏表示组件具有焦点的图形。

参数

isFocused:Boolean — 如果为 true,则绘制焦点指示符,否则隐藏它。

setFocus

()方法 
public function setFocus():void

语言版本: ActionScript 3.0
产品版本: Flex 3
运行时版本: Flash Player 9, AIR 1.1

当组件获得焦点时,由 FocusManager 调用。同样,该组件可以将焦点设置给某个内部组件。





[ X ]为什么显示为英语?
《ActionScript 3.0 参考》中的内容以英语显示

《ActionScript 3.0 参考》中的部分内容未翻译成所有语言。当某个语言元素未翻译时,将显示为英语。例如,ga.controls.HelpBox 类未翻译成任何语言。因此在简体中文版的参考中,ga.controls.HelpBox 类显示为英语。