| Pacote | spark.components.supportClasses |
| Classe | public class ScrollBarBase |
| Herança | ScrollBarBase  TrackBase Range SkinnableComponent UIComponent FlexSprite Sprite DisplayObjectContainer InteractiveObject DisplayObject EventDispatcher Object |
| Subclasses | HScrollBar, VScrollBar |
| Versão da linguagem: | ActionScript 3.0 |
| Versão de produto: | Flex 4 |
| Versões de runtime: | Flash Player 10, AIR 1.5 |
This control extends the TrackBase class and is the base class for the HScrollBar and VScrollBar controls.
A scroll bar consists of a track, a variable-size scroll thumb, and two optional arrow buttons. The ScrollBarBase class uses four parameters to calculate its display state:
-
minimum: Minimum range value. -
maximum:Maximum range value. -
value: Current position, which must be within the minimum and maximum range values. - Viewport size: Represents the number of items in the range that you can display at one time. The number of items must be less than or equal to the range, where the range is the set of values between the minimum range value and the maximum range value.
Mostrar sintaxe MXML
Ocultar sintaxe MXMLThe <s:ScrollBarBase> tag inherits all of the tag
attributes of its superclass and adds the following tag attributes:
<s:ScrollBarBase
Properties
pageSize="20"
snapInterval="1"
viewport="null"
Styles
autoThumbVisibility="true"
fixedThumbSize="false"
repeatDelay="500"
repeatInterval="35"
smoothScrolling="true"
symbolColor="0x000000"
/>
Mais exemplos
Elementos da API relacionados
spark.core.IViewport
spark.skins.spark.ScrollerSkin
spark.skins.spark.ScrollBarDownButtonSkin
spark.skins.spark.ScrollBarLeftButtonSkin
spark.skins.spark.ScrollBarRightButtonSkin
spark.skins.spark.ScrollBarUpButtonSkin
spark.skins.spark.ScrollerSkin
spark.skins.spark.ScrollBarDownButtonSkin
spark.skins.spark.ScrollBarLeftButtonSkin
spark.skins.spark.ScrollBarRightButtonSkin
spark.skins.spark.ScrollBarUpButtonSkin
Propriedades públicas
| Propriedade | Definido por | ||
|---|---|---|---|
 | accessibilityDescription : String
A convenience accessor for the description property
in this UIComponent's accessibilityProperties object. | UIComponent | |
| accessibilityEnabled : Boolean
A convenience accessor for the silent property
in this UIComponent's accessibilityProperties object. | UIComponent | |
| accessibilityImplementation : AccessibilityImplementation
A implementação de acessibilidade atual (AccessibilityImplementation) para esta instância do InteractiveObject. | InteractiveObject | |
| accessibilityName : String
A convenience accessor for the name property
in this UIComponent's accessibilityProperties object. | UIComponent | |
| accessibilityProperties : AccessibilityProperties
As opções de acessibilidade atuais para este objeto de exibição. | DisplayObject | |
| accessibilityShortcut : String
A convenience accessor for the shortcut property
in this UIComponent's accessibilityProperties object. | UIComponent | |
| activeEffects : Array [somente leitura]
The list of effects that are currently playing on the component,
as an Array of EffectInstance instances. | UIComponent | |
| alpha : Number
Indica o valor de transparência alfa do objeto especificado. | DisplayObject | |
| automationDelegate : Object
The delegate object that handles the automation-related functionality. | UIComponent | |
| automationEnabled : Boolean [somente leitura]
True if this component is enabled for automation, false
otherwise. | UIComponent | |
| automationName : String
Name that can be used as an identifier for this object. | UIComponent | |
| automationOwner : DisplayObjectContainer [somente leitura]
The owner of this component for automation purposes. | UIComponent | |
| automationParent : DisplayObjectContainer [somente leitura]
The parent of this component for automation purposes. | UIComponent | |
| automationTabularData : Object [somente leitura]
An implementation of the IAutomationTabularData interface, which
can be used to retrieve the data. | UIComponent | |
| automationValue : Array [somente leitura]
This value generally corresponds to the rendered appearance of the
object and should be usable for correlating the identifier with
the object as it appears visually within the application. | UIComponent | |
| automationVisible : Boolean [somente leitura]
True if this component is visible for automation, false
otherwise. | UIComponent | |
| baseline : Object
For components, this layout constraint property is a
facade on top of the similarly-named style. | UIComponent | |
| baselinePosition : Number [substituir] [somente leitura]
The y-coordinate of the baseline
of the first line of text of the component. | SkinnableComponent | |
| blendMode : String
Um valor a partir da classe BlendMode que especifica o modo de mesclagem a ser usado. | DisplayObject | |
| blendShader : Shader [somente gravação]
Define um shader usado para mesclar o primeiro plano e o segundo plano. | DisplayObject | |
| bottom : Object
For components, this layout constraint property is a
facade on top of the similarly-named style. | UIComponent | |
| buttonMode : Boolean
Especifica o modo de botão desta entidade gráfica. | Sprite | |
| cacheAsBitmap : Boolean
Se definido como true, tempo de execução do Flash armazenará em cachê uma representação interna em bitmap do objeto de exibição. | DisplayObject | |
| cacheAsBitmapMatrix : Matrix
Se não nulo, este objeto Matrix definirá como um objeto exibição será renderizado quando cacheAsBitmap for definido como verdadeiro. | DisplayObject | |
| cacheHeuristic : Boolean [somente gravação]
Used by Flex to suggest bitmap caching for the object. | UIComponent | |
| cachePolicy : String
Specifies the bitmap caching policy for this object. | UIComponent | |
| className : String [somente leitura]
The name of this instance's class, such as "Button". | UIComponent | |
| constructor : Object
Uma referência ao objeto de classe ou à função de construtor de uma determinada ocorrência de objeto. | Object | |
| contentMouseX : Number [somente leitura]
Returns the x position of the mouse, in the content coordinate system. | UIComponent | |
| contentMouseY : Number [somente leitura]
Returns the y position of the mouse, in the content coordinate system. | UIComponent | |
| contextMenu : NativeMenu
Especifica o menu de contexto associado a este objeto. | InteractiveObject | |
| currentState : String
The current view state of the component. | UIComponent | |
| cursorManager : ICursorManager [somente leitura]
Gets the CursorManager that controls the cursor for this component
and its peers. | UIComponent | |
| depth : Number
Determines the order in which items inside of containers
are rendered. | UIComponent | |
| descriptor : UIComponentDescriptor
Reference to the UIComponentDescriptor, if any, that was used
by the createComponentFromDescriptor() method to create this
UIComponent instance. | UIComponent | |
| designLayer : DesignLayer
Specifies the optional DesignLayer instance associated with this visual
element. | UIComponent | |
| document : Object
A reference to the document object associated with this UIComponent. | UIComponent | |
| doubleClickEnabled : Boolean [substituir]
Specifies whether the UIComponent object receives doubleClick events. | UIComponent | |
| dropTarget : DisplayObject [somente leitura]
Especifica o objeto de exibição sobre o qual a entidade gráfica está sendo arrastada ou no qual a entidade gráfica foi solta. | Sprite | |
| enabled : Boolean
Whether the component can accept user interaction. | UIComponent | |
| errorString : String
The text that displayed by a component's error tip when a
component is monitored by a Validator and validation fails. | UIComponent | |
| explicitHeight : Number
Number that specifies the explicit height of the component,
in pixels, in the component's coordinates. | UIComponent | |
| explicitMaxHeight : Number
The maximum recommended height of the component to be considered
by the parent during layout. | UIComponent | |
| explicitMaxWidth : Number
The maximum recommended width of the component to be considered
by the parent during layout. | UIComponent | |
| explicitMinHeight : Number
The minimum recommended height of the component to be considered
by the parent during layout. | UIComponent | |
| explicitMinWidth : Number
The minimum recommended width of the component to be considered
by the parent during layout. | UIComponent | |
| explicitWidth : Number
Number that specifies the explicit width of the component,
in pixels, in the component's coordinates. | UIComponent | |
| filters : Array
Uma matriz indexada que contém cada objeto de filtro atualmente associado ao objeto de exibição. | DisplayObject | |
| flexContextMenu : IFlexContextMenu
The context menu for this UIComponent. | UIComponent | |
| focusEnabled : Boolean
Indicates whether the component can receive focus when tabbed to. | UIComponent | |
| focusManager : IFocusManager
Gets the FocusManager that controls focus for this component
and its peers. | UIComponent | |
| focusPane : Sprite
The focus pane associated with this object. | UIComponent | |
| focusRect : Object
Especifica se este objeto exibe um retângulo de foco. | InteractiveObject | |
| graphics : Graphics [somente leitura]
Especifica o objeto Graphics pertencente a esta entidade gráfica em que comandos de desenho de vetor podem ocorrer. | Sprite | |
| hasFocusableChildren : Boolean
A flag that indicates whether child objects can receive focus. | UIComponent | |
| hasLayoutMatrix3D : Boolean [somente leitura]
Contains true if the element has 3D Matrix. | UIComponent | |
| height : Number [substituir]
Number that specifies the height of the component, in pixels,
in the parent's coordinates. | UIComponent | |
| hitArea : Sprite
Designa outra entidade gráfica para atuar como área de ocorrência para uma entidade gráfica. | Sprite | |
| horizontalCenter : Object
For components, this layout constraint property is a
facade on top of the similarly-named style. | UIComponent | |
| id : String
ID of the component. | UIComponent | |
| includeInLayout : Boolean
Specifies whether this component is included in the layout of the
parent container. | UIComponent | |
| inheritingStyles : Object
The beginning of this component's chain of inheriting styles. | UIComponent | |
| initialized : Boolean
A flag that determines if an object has been through all three phases
of layout: commitment, measurement, and layout (provided that any were required). | UIComponent | |
| instanceIndex : int [somente leitura]
The index of a repeated component. | UIComponent | |
| instanceIndices : Array
An Array containing the indices required to reference
this UIComponent object from its parent document. | UIComponent | |
| is3D : Boolean [somente leitura]
Contains true when the element is in 3D. | UIComponent | |
| isDocument : Boolean [somente leitura]
Contains true if this UIComponent instance is a document object. | UIComponent | |
| isPopUp : Boolean
Set to true by the PopUpManager to indicate
that component has been popped up. | UIComponent | |
| layoutMatrix3D : Matrix3D [somente gravação]
The transform matrix that is used to calculate a component's layout
relative to its siblings. | UIComponent | |
| left : Object
For components, this layout constraint property is a
facade on top of the similarly-named style. | UIComponent | |
| loaderInfo : LoaderInfo [somente leitura]
Retorna um objeto LoaderInfo contendo informações sobre o carregamento do arquivo ao qual esse objeto de exibição pertence. | DisplayObject | |
| maintainProjectionCenter : Boolean
When true, the component keeps its projection matrix centered on the
middle of its bounding box. | UIComponent | |
| mask : DisplayObject
O objeto de exibição de chamada é mascarado pelo objeto "mask" especificado. | DisplayObject | |
| maxHeight : Number
The maximum recommended height of the component to be considered
by the parent during layout. | UIComponent | |
| maximum : Number
The maximum valid value. | Range | |
| maxWidth : Number
The maximum recommended width of the component to be considered
by the parent during layout. | UIComponent | |
| measuredHeight : Number
The default height of the component, in pixels. | UIComponent | |
| measuredMinHeight : Number
The default minimum height of the component, in pixels. | UIComponent | |
| measuredMinWidth : Number
The default minimum width of the component, in pixels. | UIComponent | |
| measuredWidth : Number
The default width of the component, in pixels. | UIComponent | |
| metaData : Object
Obtém o objeto de metadados da instância DisplayObject se os metadados forem armazenados juntamente com a instância desse DisplayObject no arquivo SWF por uma marca PlaceObject4. | DisplayObject | |
| minHeight : Number
The minimum recommended height of the component to be considered
by the parent during layout. | UIComponent | |
| minimum : Number
The minimum valid value. | Range | |
| minWidth : Number
The minimum recommended width of the component to be considered
by the parent during layout. | UIComponent | |
| moduleFactory : IFlexModuleFactory
A module factory is used as context for using embedded fonts and for
finding the style manager that controls the styles for this
component. | UIComponent | |
| mouseChildren : Boolean
Determina se os filhos do objeto são ou não ativados pelo mouse, ou dispositivo de entrada do usuário. | DisplayObjectContainer | |
| mouseEnabled : Boolean
Especifica se este objeto recebe mensagens de mouse, ou de outras entradas de usuários. | InteractiveObject | |
| mouseFocusEnabled : Boolean
Whether you can receive focus when clicked on. | UIComponent | |
| mouseX : Number [somente leitura]
Indica a coordenada x da posição do dispositivo do mouse ou de entrada do usuário, em pixels. | DisplayObject | |
| mouseY : Number [somente leitura]
Indica a coordenada y da posição do dispositivo do mouse ou de entrada do usuário, em pixels. | DisplayObject | |
| name : String
Indica o nome da ocorrência de DisplayObject. | DisplayObject | |
| needsSoftKeyboard : Boolean
Especifica se um teclado virtual (teclado de software, na tela) deve ser exibido quando esta instância InteractiveObject recebe foco. | InteractiveObject | |
| nestLevel : int
Depth of this object in the containment hierarchy. | UIComponent | |
| nonInheritingStyles : Object
The beginning of this component's chain of non-inheriting styles. | UIComponent | |
| numAutomationChildren : int [somente leitura]
The number of automation children this container has. | UIComponent | |
| opaqueBackground : Object
Especifica se o objeto de exibição é opaco com uma certa cor de plano de fundo. | DisplayObject | |
| owner : DisplayObjectContainer
The owner of this IVisualElement object. | UIComponent | |
| pageSize : Number
The change in the value of the value property
when you call the changeValueByPage() method. | ScrollBarBase | ||
| parent : DisplayObjectContainer [substituir] [somente leitura]
The parent container or component for this component. | UIComponent | |
| parentApplication : Object [somente leitura]
A reference to the Application object that contains this UIComponent
instance. | UIComponent | |
| parentDocument : Object [somente leitura]
A reference to the parent document object for this UIComponent. | UIComponent | |
| percentHeight : Number
Specifies the height of a component as a percentage
of its parent's size. | UIComponent | |
| percentWidth : Number
Specifies the width of a component as a percentage
of its parent's size. | UIComponent | |
| postLayoutTransformOffsets : mx.geom:TransformOffsets
Defines a set of adjustments that can be applied to the object's
transform in a way that is invisible to its parent's layout. | UIComponent | |
| processedDescriptors : Boolean
Set to true after immediate or deferred child creation,
depending on which one happens. | UIComponent | |
| repeater : IRepeater [somente leitura]
A reference to the Repeater object
in the parent document that produced this UIComponent. | UIComponent | |
| repeaterIndex : int [somente leitura]
The index of the item in the data provider
of the Repeater that produced this UIComponent. | UIComponent | |
| repeaterIndices : Array
An Array containing the indices of the items in the data provider
of the Repeaters in the parent document that produced this UIComponent. | UIComponent | |
| repeaters : Array
An Array containing references to the Repeater objects
in the parent document that produced this UIComponent. | UIComponent | |
| right : Object
For components, this layout constraint property is a
facade on top of the similarly-named style. | UIComponent | |
| root : DisplayObject [somente leitura]
Para um objeto de exibição em um arquivo SWF carregado, a propriedade "root" é o objeto de exibição na extremidade superior, na parte da estrutura em árvore da lista de exibição representada por esse arquivo SWF. | DisplayObject | |
| rotation : Number [substituir]
Indica o giro da ocorrência de DisplayObject, em graus, a partir da sua orientação original. | UIComponent | |
| rotationX : Number [substituir]
Indicates the x-axis rotation of the DisplayObject instance, in degrees, from its original orientation
relative to the 3D parent container. | UIComponent | |
| rotationY : Number [substituir]
Indicates the y-axis rotation of the DisplayObject instance, in degrees, from its original orientation
relative to the 3D parent container. | UIComponent | |
| rotationZ : Number [substituir]
Indicates the z-axis rotation of the DisplayObject instance, in degrees, from its original orientation relative to the 3D parent container. | UIComponent | |
| scale9Grid : Rectangle
A grade de dimensionamento atual que está em vigor. | DisplayObject | |
| scaleX : Number [substituir]
Number that specifies the horizontal scaling factor. | UIComponent | |
| scaleY : Number [substituir]
Number that specifies the vertical scaling factor. | UIComponent | |
| scaleZ : Number [substituir]
Number that specifies the scaling factor along the z axis. | UIComponent | |
| screen : Rectangle [somente leitura]
Returns an object that contains the size and position of the base
drawing surface for this object. | UIComponent | |
| scrollRect : Rectangle
Os limites do retângulo de rolagem do objeto de exibição. | DisplayObject | |
| showInAutomationHierarchy : Boolean
A flag that determines if an automation object
shows in the automation hierarchy. | UIComponent | |
| skin : UIComponent [somente leitura]
The instance of the skin class for this component instance. | SkinnableComponent | |
| snapInterval : Number [substituir]
The snapInterval property controls the valid values of the value property. | ScrollBarBase | ||
| softKeyboard : String
Controla a aparência do teclado suave. | InteractiveObject | |
| softKeyboardInputAreaOfInterest : Rectangle
Define a área que deve permanecer na tela quando um teclado virtual for exibido (não disponível no iOS) | InteractiveObject | |
| soundTransform : flash.media:SoundTransform
Controla o som nesta entidade gráfica. | Sprite | |
| stage : Stage [somente leitura]
O Palco do objeto de exibição. | DisplayObject | |
| states : Array
The view states that are defined for this component. | UIComponent | |
| stepSize : Number
The amount that the value property
changes when the changeValueByStep() method is called. | Range | |
| styleDeclaration : CSSStyleDeclaration
Storage for the inline inheriting styles on this object. | UIComponent | |
| styleManager : IStyleManager2 [somente leitura]
Returns the StyleManager instance used by this component. | UIComponent | |
| styleName : Object
The class style used by this component. | UIComponent | |
| styleParent : IAdvancedStyleClient
A component's parent is used to evaluate descendant selectors. | UIComponent | |
| suggestedFocusSkinExclusions : Array [somente leitura]
Lists the skin parts that are
excluded from bitmaps captured and used to
show focus. | SkinnableComponent | |
| systemManager : ISystemManager
Returns the SystemManager object used by this component. | UIComponent | |
| tabChildren : Boolean
Determina se os filhos do objeto estão ativados para tabulação. | DisplayObjectContainer | |
| tabEnabled : Boolean
Especifica se este objeto está na ordem de tabulação. | InteractiveObject | |
| tabFocusEnabled : Boolean
A flag that indicates whether this object can receive focus
via the TAB key
This is similar to the tabEnabled property
used by the Flash Player.
This is usually true for components that
handle keyboard input, but some components in controlbars
have them set to false because they should not steal
focus from another component like an editor. | UIComponent | |
| tabIndex : int
Especifica a ordem de tabulação de objetos em um arquivo SWF. | InteractiveObject | |
| textSnapshot : flash.text:TextSnapshot [somente leitura]
Retorna um objeto TextSnapshot para essa ocorrência de DisplayObjectContainer. | DisplayObjectContainer | |
| toolTip : String
Text to display in the ToolTip. | UIComponent | |
| top : Object
For components, this layout constraint property is a
facade on top of the similarly-named style. | UIComponent | |
| transform : flash.geom:Transform [substituir]
An object with properties pertaining to a display object's matrix, color transform,
and pixel bounds. | UIComponent | |
| transformX : Number
Sets the x coordinate for the transform center of the component. | UIComponent | |
| transformY : Number
Sets the y coordinate for the transform center of the component. | UIComponent | |
| transformZ : Number
Sets the z coordinate for the transform center of the component. | UIComponent | |
| transitions : Array
An Array of Transition objects, where each Transition object defines a
set of effects to play when a view state change occurs. | UIComponent | |
| tweeningProperties : Array
Array of properties that are currently being tweened on this object. | UIComponent | |
| uid : String
A unique identifier for the object. | UIComponent | |
| updateCompletePendingFlag : Boolean
A flag that determines if an object has been through all three phases
of layout validation (provided that any were required). | UIComponent | |
| useHandCursor : Boolean
Um valor booliano que indica se a mão que aponta (cursor de mão) aparece quando o ponteiro passa sobre uma entidade gráfica em que a propriedade buttonMode esteja definida como "true". | Sprite | |
| validationSubField : String
Used by a validator to associate a subfield with this component. | UIComponent | |
| value : Number
The current value for this range. | Range | |
| verticalCenter : Object
For components, this layout constraint property is a
facade on top of the similarly-named style. | UIComponent | |
| viewport : IViewport
The viewport controlled by this scrollbar. | ScrollBarBase | ||
| visible : Boolean [substituir]
Whether or not the display object is visible. | UIComponent | |
| width : Number [substituir]
Number that specifies the width of the component, in pixels,
in the parent's coordinates. | UIComponent | |
| x : Number [substituir]
Number that specifies the component's horizontal position,
in pixels, within its parent container. | UIComponent | |
| y : Number [substituir]
Number that specifies the component's vertical position,
in pixels, within its parent container. | UIComponent | |
| z : Number [substituir]
Indicates the z coordinate position along the z-axis of the DisplayObject
instance relative to the 3D parent container. | UIComponent | |
Propriedades protegidas
| Propriedade | Definido por | ||
|---|---|---|---|
| currentCSSState : String [substituir] [somente leitura]
The state to be used when matching CSS pseudo-selectors. | SkinnableComponent | |
| hasComplexLayoutMatrix : Boolean [somente leitura]
Returns true if the UIComponent has any non-translation (x,y) transform properties. | UIComponent | |
| pendingValue : Number
The value the scrollbar will have when the mouse button is released. | ScrollBarBase | ||
| resourceManager : IResourceManager [somente leitura]
A reference to the object which manages
all of the application's localized resources. | UIComponent | |
| unscaledHeight : Number [somente leitura]
A convenience method for determining the unscaled height
of the component. | UIComponent | |
| unscaledWidth : Number [somente leitura]
A convenience method for determining the unscaled width
of the component
All of a component's drawing and child layout should be done
within a bounding rectangle of this width, which is also passed
as an argument to updateDisplayList(). | UIComponent | |
Métodos públicos
| Método | Definido por | ||
|---|---|---|---|
Constructor. | ScrollBarBase | ||
| addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void
Registra um objeto de ouvinte de evento em um objeto EventDispatcher, de forma que o ouvinte receba a notificação de um evento. | EventDispatcher | |
|
Adds a non-visual style client to this component instance. | UIComponent | |
|
Indica se restrições de segurança fariam com que qualquer objeto de exibição fosse omitido da lista retornada com a chamada do método DisplayObjectContainer.getObjectsUnderPoint() junto com o ponto especificado. | DisplayObjectContainer | |
|
Queues a function to be called later. | UIComponent | |
Adds or subtracts pageSize from value. | ScrollBarBase | ||
|
Increases or decreases value by stepSize. | Range | |
|
Deletes a style property from this component instance. | UIComponent | |
|
Determina se o objeto de exibição especificado é um filho da ocorrência de DisplayObjectContainer ou se é a própria ocorrência. | DisplayObjectContainer | |
|
Converts a Point object from content coordinates to global coordinates. | UIComponent | |
|
Converts a Point object from content to local coordinates. | UIComponent | |
|
Returns a set of properties that identify the child within
this container. | UIComponent | |
|
Returns a set of properties that identify the child within
this container. | UIComponent | |
|
Creates an id reference to this IUIComponent object
on its parent document object. | UIComponent | |
|
Deletes the id reference to this IUIComponent object
on its parent document object. | UIComponent | |
|
Returns a UITextFormat object corresponding to the text styles
for this UIComponent. | UIComponent | |
| [substituir]
Dispatches an event into the event flow. | UIComponent | |
|
Shows or hides the focus indicator around this component. | UIComponent | |
| drawRoundRect(x:Number, y:Number, w:Number, h:Number, r:Object = null, c:Object = null, alpha:Object = null, rot:Object = null, gradient:String = null, ratios:Array = null, hole:Object = null):void
Programmatically draws a rectangle into this skin's Graphics object. | UIComponent | |
|
Called by the effect instance when it stops playing on the component. | UIComponent | |
|
Called by the effect instance when it starts playing on the component. | UIComponent | |
|
Ends all currently playing effects on the component. | UIComponent | |
|
Executes all the bindings for which the UIComponent object is the destination. | UIComponent | |
|
Called after printing is complete. | UIComponent | |
|
Provides the automation object at the specified index. | UIComponent | |
|
Provides the automation object list . | UIComponent | |
|
Retorna um retângulo que define a área do objeto de exibição com relação ao sistema de coordenadas do objeto targetCoordinateSpace. | DisplayObject | |
|
Returns the x coordinate of the element's bounds at the specified element size. | UIComponent | |
|
Returns the y coordinate of the element's bounds at the specified element size. | UIComponent | |
|
Retorna o objeto de exibição-filho que existe com o nome especificado. | DisplayObjectContainer | |
|
Finds the type selectors for this UIComponent instance. | UIComponent | |
|
Returns a layout constraint value, which is the same as
getting the constraint style for this component. | UIComponent | |
|
A convenience method for determining whether to use the
explicit or measured height
| UIComponent | |
|
A convenience method for determining whether to use the
explicit or measured width
| UIComponent | |
|
Gets the object that currently has focus. | UIComponent | |
|
Returns the element's layout height. | UIComponent | |
|
Returns the element's layout width. | UIComponent | |
|
Returns the x coordinate that the element uses to draw on screen. | UIComponent | |
|
Returns the y coordinate that the element uses to draw on screen. | UIComponent | |
|
Returns the transform matrix that is used to calculate the component's
layout relative to its siblings. | UIComponent | |
|
Returns the layout transform Matrix3D for this element. | UIComponent | |
|
Returns the element's maximum height. | UIComponent | |
|
Returns the element's maximum width. | UIComponent | |
|
Returns the element's minimum height. | UIComponent | |
|
Returns the element's minimum width. | UIComponent | |
|
Retorna uma matriz de objetos que estão dispostos no ponto especificado e são filhos (ou netos e assim por diante) desta ocorrência de DisplayObjectContainer. | DisplayObjectContainer | |
|
Returns the element's preferred height. | UIComponent | |
|
Returns the element's preferred width. | UIComponent | |
|
Retorna um retângulo que define o limite do objeto de exibição, com base no sistema de coordenadas definido pelo parâmetro espaçoCoordenadasDestino, excluindo quaisquer traçados em formas. | DisplayObject | |
|
Returns the item in the dataProvider that was used
by the specified Repeater to produce this Repeater, or
null if this Repeater isn't repeated. | UIComponent | |
|
Gets a style property that has been set anywhere in this
component's style lookup chain. | UIComponent | |
|
Converts a Point object from global to content coordinates. | UIComponent | |
|
Converte o objeto de ponto a partir de coordenadas de Palco (globais) em coordenadas do objeto de exibição (locais). | DisplayObject | |
|
Converte um ponto bidimensional das coordenadas do Palco (globais) em coordenadas do objeto de exibição tridimensional (locais). | DisplayObject | |
|
Returns true if currentCSSState is not null. | UIComponent | |
|
Verifica se o objeto EventDispatcher tem ouvintes registrados para um tipo específico de evento. | EventDispatcher | |
|
Indica se um objeto tem uma propriedade especificada definida. | Object | |
|
Determines whether the specified state has been defined on this
UIComponent. | UIComponent | |
|
Avalia a caixa delimitadora do objeto de exibição para ver se ela sobrepõe ou faz interseção com a caixa delimitadora do objeto de exibição obj. | DisplayObject | |
|
Avalia o objeto de exibição para ver se ele sobrepõe ou faz interseção com o ponto especificado pelos parâmetros x e y. | DisplayObject | |
|
Returns a box Matrix which can be passed to the
drawRoundRect() method
as the rot parameter when drawing a horizontal gradient. | UIComponent | |
|
Initializes the internal structure of this component. | UIComponent | |
|
Initializes various properties which keep track of repeated instances
of this component. | UIComponent | |
|
Marks a component so that its updateDisplayList()
method gets called during a later screen update. | UIComponent | |
|
Called by a component's items to indicate that their depth
property has changed. | UIComponent | |
|
An element must call this method when its layoutDirection changes or
when its parent's layoutDirection changes. | UIComponent | |
|
Marks a component so that its commitProperties()
method gets called during a later screen update. | UIComponent | |
|
Marks a component so that its measure()
method gets called during a later screen update. | UIComponent | |
|
Marks the component so that the new state of the skin is set
during a later screen update. | SkinnableComponent | |
|
Indica se uma ocorrência da classe Object está na cadeia de protótipos do objeto especificado como o parâmetro. | Object | |
|
Converte um ponto tridimensional das coordenadas (locais) do objeto de exibição tridimensional em ponto bidimensional das coordenadas (globais) do Palco. | DisplayObject | |
|
Converts a Point object from local to content coordinates. | UIComponent | |
|
Converte o objeto de ponto a partir das coordenadas do objeto de exibição (locais) em coordenadas do Palco (globais). | DisplayObject | |
|
Returns true if cssState matches currentCSSState. | UIComponent | |
|
Determines whether this instance is the same as, or is a subclass of,
the given type. | UIComponent | |
|
Measures the specified HTML text, which can contain HTML tags such
as <font> and <b>,
assuming that it is displayed
in a single-line UITextField using a UITextFormat
determined by the styles of this UIComponent. | UIComponent | |
|
Measures the specified text, assuming that it is displayed
in a single-line UITextField (or UIFTETextField) using a UITextFormat
determined by the styles of this UIComponent. | UIComponent | |
|
Moves the component to a specified position within its parent. | UIComponent | |
|
Propagates style changes to the children. | UIComponent | |
|
Returns true if the chain of owner properties
points from child to this UIComponent. | UIComponent | |
|
Called by Flex when a UIComponent object is added to or removed from a parent. | UIComponent | |
|
Prepares an IFlexDisplayObject for printing. | UIComponent | |
|
Indica se a propriedade especificada existe e é enumerável. | Object | |
|
Builds or rebuilds the CSS style cache for this component
and, if the recursive parameter is true,
for all descendants of this component as well. | UIComponent | |
|
For each effect event, registers the EffectManager
as one of the event listeners. | UIComponent | |
|
Remove todas as instâncias filho DisplayObject especificadas da lista de filhos da instância DisplayObjectContainer. | DisplayObjectContainer | |
|
Remove um ouvinte do objeto EventDispatcher. | EventDispatcher | |
|
Removes a non-visual style client from this component instance. | UIComponent | |
|
Replays the specified event. | UIComponent | |
|
Ativa um teclado virtual. | InteractiveObject | |
|
Resolves a child by using the id provided. | UIComponent | |
| [estático]
Resumes the background processing of methods
queued by callLater(), after a call to
suspendBackgroundProcessing(). | UIComponent | |
|
Sizes the object. | UIComponent | |
|
Sets a layout constraint value, which is the same as
setting the constraint style for this component. | UIComponent | |
|
Set the current state. | UIComponent | |
|
Sets the focus to this component. | UIComponent | |
|
Sets the coordinates that the element uses to draw on screen. | UIComponent | |
|
Sets the layout size of the element. | UIComponent | |
|
Sets the transform Matrix that is used to calculate the component's layout
size and position relative to its siblings. | UIComponent | |
|
Sets the transform Matrix3D that is used to calculate the component's layout
size and position relative to its siblings. | UIComponent | |
|
Define a disponibilidade de uma propriedade dinâmica para operações de repetição. | Object | |
|
Sets a style property on this component instance. | UIComponent | |
|
Called when the visible property changes. | UIComponent | |
|
Permite ao usuário arrastar a entidade gráfica especificada. | Sprite | |
|
Deixa o usuário arrastar o sprite especificado em um dispositivo ativado pelo toque. | Sprite | |
|
Interrompe repetitivamente a execução da linha de tempo de todos os MovieClips enraizados neste objeto. | DisplayObjectContainer | |
|
Finaliza o método startDrag(). | Sprite | |
|
Termina o método startTouchDrag() para o uso com dispositivos ativados pelo toque. | Sprite | |
|
Detects changes to style properties. | UIComponent | |
|
Flex calls the stylesInitialized() method when
the styles for a component are first initialized. | UIComponent | |
| [estático]
Blocks the background processing of methods
queued by callLater(),
until resumeBackgroundProcessing() is called. | UIComponent | |
|
Retorna a representação da string deste objeto, formatado segundo as convenções específicas para a localidade. | Object | |
| [substituir]
Returns a string indicating the location of this object
within the hierarchy of DisplayObjects in the Application. | FlexSprite | |
| transformAround(transformCenter:Vector3D, scale:Vector3D = null, rotation:Vector3D = null, translation:Vector3D = null, postLayoutScale:Vector3D = null, postLayoutRotation:Vector3D = null, postLayoutTranslation:Vector3D = null, invalidateLayout:Boolean = true):void
A utility method to update the rotation, scale, and translation of the
transform while keeping a particular point, specified in the component's
own coordinate space, fixed in the parent's coordinate space. | UIComponent | |
|
A utility method to transform a point specified in the local
coordinates of this object to its location in the object's parent's
coordinates. | UIComponent | |
|
Validates the position and size of children and draws other
visuals. | UIComponent | |
|
Validate and update the properties and layout of this object
and redraw it, if necessary. | UIComponent | |
|
Used by layout logic to validate the properties of a component
by calling the commitProperties() method. | UIComponent | |
|
Validates the measured size of the component
If the LayoutManager.invalidateSize() method is called with
this ILayoutManagerClient, then the validateSize() method
is called when it's time to do measurements. | UIComponent | |
|
Handles both the valid and invalid events from a
validator assigned to this component. | UIComponent | |
|
Retorna o valor primitivo do objeto especificado. | Object | |
|
Returns a box Matrix which can be passed to drawRoundRect()
as the rot parameter when drawing a vertical gradient. | UIComponent | |
|
Verifica se um ouvinte de evento está registrado nesse objeto EventDispatcher ou em qualquer um de seus ancestrais para o tipo de evento especificado. | EventDispatcher | |
Métodos protegidos
| Método | Definido por | ||
|---|---|---|---|
|
Adjust the focus rectangle. | UIComponent | |
Animates the operation to move to newValue. | ScrollBarBase | ||
Animates the operation to step to newValue. | ScrollBarBase | ||
|
Commits the computed matrix built from the combination of the layout
matrix and the transform offsets to the flash displayObject's transform. | UIComponent | |
|
This is an internal method used by the Flex framework
to support the Dissolve effect. | UIComponent | |
|
Create the skin for the component. | SkinnableComponent | |
Handles a click on the increment or decrement button of the scroll bar. | ScrollBarBase | ||
Handles releasing the increment or decrement button of the scrollbar. | ScrollBarBase | ||
|
Determines if the call to the measure() method can be skipped. | UIComponent | |
|
Performs any final processing after child objects are created. | UIComponent | |
|
Clear out references to skin parts. | SkinnableComponent | |
|
Processes the properties set on the component. | UIComponent | |
|
Create child objects of the component. | UIComponent | |
|
Create an instance of a dynamic skin part. | SkinnableComponent | |
|
Creates a new object using a context
based on the embedded font being used. | UIComponent | |
|
Creates the object using a given moduleFactory. | UIComponent | |
|
Destroys and removes the skin for this component. | SkinnableComponent | |
|
Helper method for dispatching a PropertyChangeEvent
when a property is updated. | UIComponent | |
|
Find the skin parts in the skin class and assign them to the properties of the component. | SkinnableComponent | |
|
The event handler called when a UIComponent object gets focus. | UIComponent | |
|
The event handler called when a UIComponent object loses focus. | UIComponent | |
|
Returns the name of the state to be applied to the skin. | SkinnableComponent | |
|
Returns a specific instance of a dynamic part. | SkinnableComponent | |
|
Initializes the implementation and storage of some of the less frequently
used advanced layout features of a component. | UIComponent | |
|
Finalizes the initialization of this component. | UIComponent | |
|
Initializes this component's accessibility code. | UIComponent | |
|
Helper method to invalidate parent size and display list if
this object affects its layout (includeInLayout is true). | UIComponent | |
|
Typically overridden by components containing UITextField objects,
where the UITextField object gets focus. | UIComponent | |
|
The event handler called for a keyDown event. | UIComponent | |
|
The event handler called for a keyUp event. | UIComponent | |
|
Calculates the default size, and optionally the default minimum size,
of the component. | UIComponent | |
|
Returns the sum of the minimum with an integer multiple of interval that's
closest to value, unless value is closer to the maximum limit,
in which case the maximum is returned. | Range | |
|
Returns the number of instances of a dynamic part. | SkinnableComponent | |
|
Called when a skin part is added. | SkinnableComponent | |
|
Called when an instance of a skin part is being removed. | SkinnableComponent | |
|
Converts a track-relative x,y pixel location into a value between
the minimum and maximum, inclusive. | TrackBase | |
|
Remove an instance of a dynamic part. | SkinnableComponent | |
|
This method is called when a UIComponent is constructed,
and again whenever the ResourceManager dispatches
a "change" Event to indicate
that the localized resources have changed in some way. | UIComponent | |
|
Specifies a transform stretch factor in the horizontal and vertical direction. | UIComponent | |
|
Sets the backing store for the value property and
dispatches a valueCommit event if the property changes. | Range | |
|
This method is called when a state changes to check whether
state-specific styles apply to this component. | UIComponent | |
|
Draws the object and/or sizes and positions its children. | UIComponent | |
|
Sets the bounds of skin parts, typically the thumb, whose geometry isn't fully
specified by the skin's layout. | TrackBase | |
Eventos
Estilos
Os estilos são comuns ou associados a um tema específico. Se o estilo for comum, poderá ser usado com qualquer tema. Se o estilo for associado a um tema específico, só poderá ser usado se o seu aplicativo usar esse tema.
Estilos comuns
| Estilo | Descrição | Definido por | ||
|---|---|---|---|---|
autoThumbVisibility | Tipo: Boolean Herança de CSS: Não Versão da linguagem: ActionScript 3.0 Versão de produto: Flex 4 Versões de runtime: Flash10, AIR 1.5 If true (the default), the thumb's visibility will be reset whenever its size is updated. Overrides of updateSkinDisplayList() in
HScrollBar and VScrollBar
make the thumb visible if it's smaller than the track,
unless this style is false.
Set this style to false to control thumb visibility directly.
O valor padrão é true. | ScrollBarBase | ||
| Tipo: String Herança de CSS: Não Versão da linguagem: ActionScript 3.0 Versão de produto: Flex 3 Versões de runtime: Flash9, AIR 1.1 The vertical distance in pixels from the top edge of the content area to the control's baseline position. | UIComponent | ||
| Tipo: String Herança de CSS: Não Versão da linguagem: ActionScript 3.0 Versão de produto: Flex 3 Versões de runtime: Flash9, AIR 1.1 The vertical distance, in pixels, from the bottom edge of the component to the bottom edge of its parent container's content area. | UIComponent | ||
| Tipo: uint Formato: Color Herança de CSS: Sim Versão da linguagem: ActionScript 3.0 Versão de produto: Flex 3 Versões de runtime: Flash9, AIR 1.1 Color of the component highlight when validation fails. | UIComponent | ||
| Tipo: Class Versão da linguagem: ActionScript 3.0 Versão de produto: Flex 4 Versões de runtime: Flash10, AIR 1.5 Name of the skin class to use for this component when a validation error occurs. | SkinnableComponent | ||
fixedThumbSize | Tipo: Boolean Herança de CSS: Não Versão da linguagem: ActionScript 3.0 Versão de produto: Flex 4 Versões de runtime: Flash10, AIR 1.5 If true, the thumb's size along the scrollbar's axis will be its preferred size. O valor padrão é false. | ScrollBarBase | ||
| Tipo: Class Herança de CSS: Não Versão da linguagem: ActionScript 3.0 Versão de produto: Flex 3 Versões de runtime: Flash9, AIR 1.1 Skin used to draw the focus rectangle. | UIComponent | ||
| Tipo: String Herança de CSS: Não Versão da linguagem: ActionScript 3.0 Versão de produto: Flex 3 Versões de runtime: Flash9, AIR 1.1 The horizontal distance in pixels from the center of the component's content area to the center of the component. | UIComponent | ||
| Tipo: String Herança de CSS: Sim Versão da linguagem: ActionScript 3.0 Versão de produto: Flex 4.5 Versões de runtime: Flash10, AIR 2.5 The primary interaction mode for this component. | UIComponent | ||
| Tipo: String Herança de CSS: Sim Versão da linguagem: ActionScript 3.0 Versão de produto: Flex 4.1 Versões de runtime: Flash10, AIR 1.5 Specifies the desired layout direction of a component. | UIComponent | ||
| Tipo: String Herança de CSS: Não Versão da linguagem: ActionScript 3.0 Versão de produto: Flex 3 Versões de runtime: Flash9, AIR 1.1 The horizontal distance, in pixels, from the left edge of the component to the left edge of its parent container's content area. | UIComponent | ||
liveDragging | Tipo: Boolean Herança de CSS: Não Versão da linguagem: ActionScript 3.0 Versão de produto: Flex 4 Versões de runtime: Flash10, AIR 1.5 If true (the default) then dragging the scrollbar's thumb with the mouse immediately updates the scrollbar's value. If false, the scrollbar's value is only updated when the mouse button is released. O valor padrão é true. | ScrollBarBase | ||
repeatDelay | Tipo: Number Formato: Time Herança de CSS: Não Versão da linguagem: ActionScript 3.0 Versão de produto: Flex 4 Versões de runtime: Flash10, AIR 1.5 Number of milliseconds after the first page event until subsequent page events occur. O valor padrão é 500. | ScrollBarBase | ||
repeatInterval | Tipo: Number Formato: Time Herança de CSS: Não Versão da linguagem: ActionScript 3.0 Versão de produto: Flex 4 Versões de runtime: Flash10, AIR 1.5 Number of milliseconds between page events if the user presses and holds the mouse on the track. O valor padrão é 35. | ScrollBarBase | ||
| Tipo: String Herança de CSS: Não Versão da linguagem: ActionScript 3.0 Versão de produto: Flex 3 Versões de runtime: Flash9, AIR 1.1 The horizontal distance, in pixels, from the right edge of the component to the right edge of its parent container's content area. | UIComponent | ||
| Tipo: Boolean Herança de CSS: Sim Versão da linguagem: ActionScript 3.0 Versão de produto: Flex 4.5 Versões de runtime: Flash10, AIR 1.5 Show the error border or skin when this component is invalid | UIComponent | ||
| Tipo: Boolean Herança de CSS: Sim Versão da linguagem: ActionScript 3.0 Versão de produto: Flex 4.5 Versões de runtime: Flash10, AIR 1.5 Show the error tip when this component is invalid and the user rolls over it | UIComponent | ||
| Tipo: Class Versão da linguagem: ActionScript 3.0 Versão de produto: Flex 4 Versões de runtime: Flash10, AIR 1.5 Name of the skin class to use for this component. | SkinnableComponent | ||
| Tipo: Number Formato: Time Herança de CSS: Não Versão da linguagem: ActionScript 3.0 Versão de produto: Flex 4 Versões de runtime: Flash10, AIR 1.5 Duration in milliseconds for a sliding animation when you click on the track to move a thumb. | TrackBase | ||
smoothScrolling | Tipo: Boolean Herança de CSS: Não Versão da linguagem: ActionScript 3.0 Versão de produto: Flex 4 Versões de runtime: Flash10, AIR 1.5 This style determines whether the scrollbar will animate smoothly when paging and stepping. When false, page and step operations will jump directly to the paged/stepped locations. When true, the scrollbar, and any content it is scrolling, will animate to that location. O valor padrão é true. | ScrollBarBase | ||
| Tipo: String Herança de CSS: Não Versão da linguagem: ActionScript 3.0 Versão de produto: Flex 3 Versões de runtime: Flash9, AIR 1.1 The vertical distance, in pixels, from the top edge of the component to the top edge of its parent container's content area. | UIComponent | ||
| Tipo: String Herança de CSS: Não Versão da linguagem: ActionScript 3.0 Versão de produto: Flex 3 Versões de runtime: Flash9, AIR 1.1 The vertical distance in pixels from the center of the component's content area to the center of the component. | UIComponent | ||
Estilos do tema Spark
| Estilo | Descrição | Definido por | ||
|---|---|---|---|---|
| Tipo: uint Formato: Color Herança de CSS: Sim Tema: spark, mobile Versão da linguagem: ActionScript 3.0 Versão de produto: Flex 4 Versões de runtime: Flash10, AIR 1.5 The main color for a component. | SkinnableComponent | ||
symbolColor | Tipo: uint Formato: Color Herança de CSS: Sim Tema: spark Versão da linguagem: ActionScript 3.0 Versão de produto: Flex 4 Versões de runtime: Flash10, AIR 1.5 Color of any symbol of a component. Examples include the check mark of a CheckBox or the arrow of a scroll button. O valor padrão é 0x000000. | ScrollBarBase | ||
Estilos do tema Móveis
Partes da capa
Este componente usa capas compostas de partes de capas. Não defina as partes de capa diretamente. A capa do componente define as partes da capa.
| Parte da capa | Descrição | Definido por | ||
|---|---|---|---|---|
decrementButton:Button | Obrigatório: false Tipo da parte: Estático Versão da linguagem: ActionScript 3.0 Versão de produto: Flex 4 Versões de runtime: Flash10, AIR 1.5 An optional skin part that defines a button that, when pressed, steps the scrollbar up. This is equivalent to a decreasing step to the value property. | ScrollBarBase | ||
incrementButton:Button | Obrigatório: false Tipo da parte: Estático Versão da linguagem: ActionScript 3.0 Versão de produto: Flex 4 Versões de runtime: Flash10, AIR 1.5 An optional skin part that defines a button that, when pressed, steps the scrollbar down. This is equivalent to an increasing step to the value property. | ScrollBarBase | ||
| Obrigatório: false Tipo da parte: Estático Versão da linguagem: ActionScript 3.0 Versão de produto: Flex 4 Versões de runtime: Flash10, AIR 1.5 A skin part that defines a button that can be dragged along the track to increase or decrease the value property. Updates to the value property automatically update the position of the thumb button with respect to the track. | TrackBase | ||
| Obrigatório: false Tipo da parte: Estático Versão da linguagem: ActionScript 3.0 Versão de produto: Flex 4 Versões de runtime: Flash10, AIR 1.5 A skin part that defines a button that, when pressed, sets the value property to the value corresponding with the current button position on the track. | TrackBase | ||
Estados da capa
Para encapar o componente, implemente uma capa que define os seguintes estados. Embora você deva implementar todos os estados de capa, um estado de capa pode estar vazio. Um estado de capa vazio não especifica nenhuma modificação ao estado de capa padrão.
| Estado da capa | Descrição | Definido por | ||
|---|---|---|---|---|
|
Disabled State
Versão da linguagem: ActionScript 3.0 Versão de produto: Flex 4 Versões de runtime: Flash10, AIR 1.5 | TrackBase | ||
inactive |
The inactive state.
This is the state when there is no content to scroll,
which means maximum <= minimum.
Versão da linguagem: ActionScript 3.0 Versão de produto: Flex 4 Versões de runtime: Flash10, AIR 1.5 | ScrollBarBase | ||
|
Normal State
Versão da linguagem: ActionScript 3.0 Versão de produto: Flex 4 Versões de runtime: Flash10, AIR 1.5 | TrackBase | ||
Efeitos
Constantes públicas
Detalhes da propriedade
pageSize | propriedade |
pageSize:Number| Versão da linguagem: | ActionScript 3.0 |
| Versão de produto: | Flex 4 |
| Versões de runtime: | Flash Player 10, AIR 1.5 |
The change in the value of the value property
when you call the changeValueByPage() method.
O valor padrão é 20.
Implementação
public function get pageSize():Number public function set pageSize(value:Number):voidpendingValue | propriedade |
pendingValue:Number| Versão da linguagem: | ActionScript 3.0 |
| Versão de produto: | Flex 4 |
| Versões de runtime: | Flash Player 10, AIR 1.5 |
The value the scrollbar will have when the mouse button is released.
If the liveDragging style is false, then the scrollbar's value is only set
when the mouse button is released. The value is not updated while the slider thumb is
being dragged.
This property is updated when the scrollbar thumb moves, even if
liveDragging is false.
O valor padrão é 0.
Implementação
protected function get pendingValue():Number protected function set pendingValue(value:Number):voidsnapInterval | propriedade |
snapInterval:Number[substituir] | Versão da linguagem: | ActionScript 3.0 |
| Versão de produto: | Flex 4 |
| Versões de runtime: | Flash Player 10, AIR 1.5 |
The snapInterval property controls the valid values of the value property.
If nonzero, valid values are the sum of the minimum and integer multiples
of this property, for all sums that are less than or equal to the maximum.
For example, if minimum is 10, maximum is 20, and this property is 3, then the
valid values of this Range are 10, 13, 16, 19, and 20.
If the value of this property is zero, then valid values are only constrained to be between minimum and maximum inclusive.
This property also constrains valid values for the stepSize property when set.
If this property is not explicitly set and stepSize is set,
then snapInterval defaults to stepSize.
O valor padrão é 1.
Implementação
override public function get snapInterval():Number override public function set snapInterval(value:Number):voidviewport | propriedade |
viewport:IViewport| Versão da linguagem: | ActionScript 3.0 |
| Versão de produto: | Flex 4 |
| Versões de runtime: | Flash Player 10, AIR 1.5 |
The viewport controlled by this scrollbar. If a viewport is specified, then changes to its actual size, content size, and scroll position cause the corresponding ScrollBarBase methods to run:
viewportResizeHandler()contentWidthChangeHandler()contentHeightChangeHandler()viewportVerticalScrollPositionChangeHandler()viewportHorizontalScrollPositionChangeHandler()
The VScrollBar and HScrollBar classes override these methods to
keep their pageSize, maximum, and value properties in sync with the
viewport. Similarly, they override their changeValueByPage() and changeValueByStep() methods to
use the viewport's scrollPositionDelta methods to compute page and
and step offsets.
O valor padrão é null.
Implementação
public function get viewport():IViewport public function set viewport(value:IViewport):voidElementos da API relacionados
Detalhes do construtor
ScrollBarBase | () | Construtor |
public function ScrollBarBase()| Versão da linguagem: | ActionScript 3.0 |
| Versão de produto: | Flex 4 |
| Versões de runtime: | Flash Player 10, AIR 1.5 |
Constructor.
Detalhes do método
animatePaging | () | método |
protected function animatePaging(newValue:Number, pageSize:Number):void| Versão da linguagem: | ActionScript 3.0 |
| Versão de produto: | Flex 4 |
| Versões de runtime: | Flash Player 10, AIR 1.5 |
Animates the operation to move to newValue.
The pageSize parameter is used to compute the amount
of time taken to get to that value, so that the time taken to animate
a paging operation is roughly the same as the non-animated version;
both operations should end up at the same place at about the same time.
Parâmetros
newValue:Number — The final value being paged to.
| |
pageSize:Number — The amount of horizontal or vertical movement requested.
This value is used to compute, with the repeatInterval style,
the total time taken to move to the new value. pageSize
is usually set dynamically by the containing Scroller to the value required
to view content at a logical content boundary.
|
animateStepping | () | método |
protected function animateStepping(newValue:Number, stepSize:Number):void| Versão da linguagem: | ActionScript 3.0 |
| Versão de produto: | Flex 4 |
| Versões de runtime: | Flash Player 10, AIR 1.5 |
Animates the operation to step to newValue.
The stepSize parameter is used to compute the amount
of time taken to get to that value, so that the time taken to animate
a stepping operation is roughly the same as the non-animated version;
both operations should end up at the same place at about the same time.
Parâmetros
newValue:Number — The final value being stepped to.
| |
stepSize:Number — The amount of stepping requested.
This value is used to compute, with the repeatInterval style,
the total time taken to step to the new value. stepSize
is usually set dynamically by the containing Scroller to the value required
to view content at a logical content boundary.
|
button_buttonDownHandler | () | método |
protected function button_buttonDownHandler(event:Event):void| Versão da linguagem: | ActionScript 3.0 |
| Versão de produto: | Flex 4 |
| Versões de runtime: | Flash Player 10, AIR 1.5 |
Handles a click on the increment or decrement button of the scroll bar.
This should cause a stepping operation, which is repeated if held down.
The delay before repetition begins and the delay between repeated events
are determined by the repeatDelay and
repeatInterval styles of the underlying Button objects.
Parâmetros
event:Event — The event object.
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Elementos da API relacionados
button_buttonUpHandler | () | método |
protected function button_buttonUpHandler(event:Event):void| Versão da linguagem: | ActionScript 3.0 |
| Versão de produto: | Flex 4 |
| Versões de runtime: | Flash Player 10, AIR 1.5 |
Handles releasing the increment or decrement button of the scrollbar. This ends the stepping operation started by the original buttonDown event on the button.
Parâmetros
event:Event — The event object.
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Elementos da API relacionados
changeValueByPage | () | método |
public function changeValueByPage(increase:Boolean = true):void| Versão da linguagem: | ActionScript 3.0 |
| Versão de produto: | Flex 4 |
| Versões de runtime: | Flash Player 10, AIR 1.5 |
Adds or subtracts pageSize from value.
For an addition, the new value is the closest multiple of pageSize
that is larger than the current value.
For a subtraction, the new value
is the closest multiple of pageSize that is
smaller than the current value.
The minimum value of value is pageSize.
Parâmetros
increase:Boolean (default = true)true) or
decreases (false) value.
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Wed Jun 13 2018, 11:10 AM Z