| Package | spark.components.supportClasses |
| Class | public class ItemRenderer |
| Inheritance | ItemRenderer  DataRenderer Group GroupBase UIComponent FlexSprite Sprite DisplayObjectContainer InteractiveObject DisplayObject EventDispatcher Object |
| Implements | IItemRenderer |
| Subclasses | AXMEnterpriseDropDownListItemRenderer, DefaultComplexItemRenderer, GroupContentsRenderer, MXAdvancedDataGridItemRenderer, MXItemRenderer |
| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 4 |
| Runtime Versions: | Flash Player 10, AIR 1.5 |
Item renderers support optional view states. You typically use view states in MXML item renderers to control the appearance of a data item based on user interaction with the item. The ItemRenderer class supports all views states so that you can use those item renderers with list-based classes.
Flex defines the following view states that you can support in your item renderers:
- normal - The data item has no user interaction.
- hovered - The mouse is over the data item.
- selected - The data item is selected.
- dragging - The data item is being dragged.
- normalAndShowCaret - The data item is in the normal state, and it has focus in the item list.
- hoveredAndShowCaret - The data item is in the hovered state, and it has focus in the item list.
- selectedAndShowCaret - The data item is in the normal state, and it has focus in the item list.
When the user interacts with a control in a way that changes the view state of the item renderer, Flex first determines if the renderer defines that view state. If the item renderer supports the view state, Flex sets the item renderer to use that view state. If the item renderer does not supports the view state, Flex does nothing.
MXML Syntax
Show MXML Syntax
Hide MXML SyntaxThe <s:ItemRenderer> tag inherits all of the tag
attributes of its superclass and adds the following tag attributes:
<s:ItemRenderer
Properties
autoDrawBackground="true"
selected="false"
showsCaret="false"
/>
Default MXML PropertymxmlContent
More examples
Custom item renderer example
Passing data to a Spark item renderer
Using an item renderer function with a Spark container
Creating a recyclable item renderer for virtual layout
Defining a typical item for determining the size of an item renderer
Defining item renderer view states for a Spark container
Defining an inline item renderer for a Spark container
Passing data to a Spark item renderer
Using an item renderer function with a Spark container
Creating a recyclable item renderer for virtual layout
Defining a typical item for determining the size of an item renderer
Defining item renderer view states for a Spark container
Defining an inline item renderer for a Spark container
Learn more
Public Properties
| Property | Defined By | ||
|---|---|---|---|
 | 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
The current accessibility implementation (AccessibilityImplementation)
for this InteractiveObject instance. | InteractiveObject | |
| accessibilityName : String
A convenience accessor for the name property
in this UIComponent's accessibilityProperties object. | UIComponent | |
| accessibilityProperties : AccessibilityProperties
The current accessibility options for this display object. | DisplayObject | |
| accessibilityShortcut : String
A convenience accessor for the shortcut property
in this UIComponent's accessibilityProperties object. | UIComponent | |
| activeEffects : Array [read-only]
The list of effects that are currently playing on the component,
as an Array of EffectInstance instances. | UIComponent | |
| alpha : Number
Indicates the alpha transparency value of the object specified. | DisplayObject | |
| autoDrawBackground : Boolean
Specifies whether the item renderer draws the
background of the data item during user interaction. | ItemRenderer | ||
| autoLayout : Boolean
If true, measurement and layout are done
when the position or size of a child is changed. | GroupBase | |
| automationDelegate : Object
The delegate object that handles the automation-related functionality. | UIComponent | |
| automationEnabled : Boolean [read-only]
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 [read-only]
The owner of this component for automation purposes. | UIComponent | |
| automationParent : DisplayObjectContainer [read-only]
The parent of this component for automation purposes. | UIComponent | |
| automationTabularData : Object [read-only]
An implementation of the IAutomationTabularData interface, which
can be used to retrieve the data. | UIComponent | |
| automationValue : Array [read-only]
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 [read-only]
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 [override] [read-only]
The y-coordinate of the baseline
of the first line of text of the component. | Group | |
| baselinePositionElement : IVisualElement
The element used to calculate the GroupBase's baselinePosition
| Group | |
| blendMode : String [override]
A value from the BlendMode class that specifies which blend mode to use. | Group | |
| blendShader : Shader [write-only]
Sets a shader that is used for blending the foreground and background. | DisplayObject | |
| bottom : Object
For components, this layout constraint property is a
facade on top of the similarly-named style. | UIComponent | |
| buttonMode : Boolean
Specifies the button mode of this sprite. | Sprite | |
| cacheAsBitmap : Boolean
If set to true, Flash runtimes cache an internal bitmap representation of the
display object. | DisplayObject | |
| cacheAsBitmapMatrix : Matrix
If non-null, this Matrix object defines how a display object is rendered when
cacheAsBitmap is set to true. | DisplayObject | |
| cacheHeuristic : Boolean [write-only]
Used by Flex to suggest bitmap caching for the object. | UIComponent | |
| cachePolicy : String
Specifies the bitmap caching policy for this object. | UIComponent | |
| className : String [read-only]
The name of this instance's class, such as "Button". | UIComponent | |
| clipAndEnableScrolling : Boolean
If true, specifies to clip the children to the boundaries of the viewport. | GroupBase | |
| constructor : Object
A reference to the class object or constructor function for a given object instance. | Object | |
| contentHeight : Number [read-only]
The height of the viewport's content. | GroupBase | |
| contentMouseX : Number [read-only]
Returns the x position of the mouse, in the content coordinate system. | UIComponent | |
| contentMouseY : Number [read-only]
Returns the y position of the mouse, in the content coordinate system. | UIComponent | |
| contentWidth : Number [read-only]
The width of the viewport's contents. | GroupBase | |
| contextMenu : NativeMenu
Specifies the context menu associated with this object. | InteractiveObject | |
| currentState : String
The current view state of the component. | UIComponent | |
| cursorManager : ICursorManager [read-only]
Gets the CursorManager that controls the cursor for this component
and its peers. | UIComponent | |
| data : Object
The implementation of the data property
as defined by the IDataRenderer interface. | DataRenderer | |
| 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 [override]
Specifies whether the UIComponent object receives doubleClick events. | UIComponent | |
| dragging : Boolean
Contains true if the item renderer is being dragged. | ItemRenderer | ||
| dropTarget : DisplayObject [read-only]
Specifies the display object over which the sprite is being dragged, or on
which the sprite was dropped. | 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
An indexed array that contains each filter object currently associated with the display object. | 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
Specifies whether this object displays a focus rectangle. | InteractiveObject | |
| graphics : Graphics [read-only]
Specifies the Graphics object that belongs to this sprite where vector
drawing commands can occur. | Sprite | |
| hasFocusableChildren : Boolean
A flag that indicates whether child objects can receive focus. | UIComponent | |
| hasLayoutMatrix3D : Boolean [read-only]
Contains true if the element has 3D Matrix. | UIComponent | |
| height : Number [override]
Number that specifies the height of the component, in pixels,
in the parent's coordinates. | UIComponent | |
| hitArea : Sprite
Designates another sprite to serve as the hit area for a sprite. | Sprite | |
| horizontalCenter : Object
For components, this layout constraint property is a
facade on top of the similarly-named style. | UIComponent | |
| horizontalScrollPosition : Number
The x coordinate of the origin of the viewport in the component's coordinate system,
where the default value is (0,0) corresponding to the upper-left corner of the component. | GroupBase | |
| 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 [read-only]
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 [read-only]
Contains true when the element is in 3D. | UIComponent | |
| isDocument : Boolean [read-only]
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 | |
| itemIndex : int
The index of the item in the data provider
of the host component of the item renderer. | ItemRenderer | ||
| label : String
The String to display in the item renderer. | ItemRenderer | ||
| labelDisplay : spark.components.supportClasses:TextBase
Optional item renderer label component. | ItemRenderer | ||
| layout : LayoutBase
The layout object for this container. | GroupBase | |
| layoutMatrix3D : Matrix3D [write-only]
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 [read-only]
Returns a LoaderInfo object containing information about loading the file
to which this display object belongs. | DisplayObject | |
| luminosityClip : Boolean
A property that controls whether the luminosity
mask clips the masked content. | GroupBase | |
| luminosityInvert : Boolean
A property that controls the calculation of the RGB
color value of a graphic element being masked by
a luminosity mask. | GroupBase | |
| maintainProjectionCenter : Boolean
When true, the component keeps its projection matrix centered on the
middle of its bounding box. | UIComponent | |
| mask : DisplayObject [override]
Sets the mask. | GroupBase | |
| maskType : String
The mask type. | GroupBase | |
| maxHeight : Number
The maximum recommended height of the component to be considered
by the parent during layout. | UIComponent | |
| 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
Obtains the meta data object of the DisplayObject instance if meta data was stored alongside the
the instance of this DisplayObject in the SWF file through a PlaceObject4 tag. | DisplayObject | |
| minHeight : Number
The minimum recommended height of the component to be considered
by the parent during layout. | UIComponent | |
| 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
Determines whether or not the children of the object are mouse, or user input device, enabled. | DisplayObjectContainer | |
| mouseEnabled : Boolean
Specifies whether this object receives mouse, or other user input, messages. | InteractiveObject | |
| mouseEnabledWhereTransparent : Boolean
When true, this property
ensures that the entire bounds of the Group respond to
mouse events such as click and roll over. | GroupBase | |
| mouseFocusEnabled : Boolean
Whether you can receive focus when clicked on. | UIComponent | |
| mouseX : Number [read-only]
Indicates the x coordinate of the mouse or user input device position, in pixels. | DisplayObject | |
| mouseY : Number [read-only]
Indicates the y coordinate of the mouse or user input device position, in pixels. | DisplayObject | |
| mxmlContent : Array [write-only]
The visual content children for this Group. | Group | |
| name : String
Indicates the instance name of the DisplayObject. | DisplayObject | |
| needsSoftKeyboard : Boolean
Specifies whether a virtual keyboard (an on-screen, software keyboard) should display
when this InteractiveObject instance receives focus. | 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 [read-only]
The number of automation children this container has. | UIComponent | |
| numElements : int [read-only]
The number of visual elements in this container. | GroupBase | |
| opaqueBackground : Object
Specifies whether the display object is opaque with a certain background color. | DisplayObject | |
| overlay : DisplayLayer [read-only]
The overlay plane for this group. | GroupBase | |
| owner : DisplayObjectContainer
The owner of this IVisualElement object. | UIComponent | |
| parent : DisplayObjectContainer [override] [read-only]
The parent container or component for this component. | UIComponent | |
| parentApplication : Object [read-only]
A reference to the Application object that contains this UIComponent
instance. | UIComponent | |
| parentDocument : Object [read-only]
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 [read-only]
A reference to the Repeater object
in the parent document that produced this UIComponent. | UIComponent | |
| repeaterIndex : int [read-only]
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 | |
| resizeMode : String
The ResizeMode for this container. | GroupBase | |
| right : Object
For components, this layout constraint property is a
facade on top of the similarly-named style. | UIComponent | |
| root : DisplayObject [read-only]
For a display object in a loaded SWF file, the root property is the
top-most display object in the portion of the display list's tree structure represented by that SWF file. | DisplayObject | |
| rotation : Number [override]
Indicates the rotation of the DisplayObject instance, in degrees, from its original orientation. | UIComponent | |
| rotationX : Number [override]
Indicates the x-axis rotation of the DisplayObject instance, in degrees, from its original orientation
relative to the 3D parent container. | UIComponent | |
| rotationY : Number [override]
Indicates the y-axis rotation of the DisplayObject instance, in degrees, from its original orientation
relative to the 3D parent container. | UIComponent | |
| rotationZ : Number [override]
Indicates the z-axis rotation of the DisplayObject instance, in degrees, from its original orientation relative to the 3D parent container. | UIComponent | |
| scale9Grid : Rectangle
The current scaling grid that is in effect. | DisplayObject | |
| scaleGridBottom : Number
Specifies the bottom coordinate of the scale grid. | Group | |
| scaleGridLeft : Number
Specifies the left coordinate of the scale grid. | Group | |
| scaleGridRight : Number
Specifies the right coordinate of the scale grid. | Group | |
| scaleGridTop : Number
Specifies the top coordinate of the scale grid. | Group | |
| scaleX : Number [override]
Number that specifies the horizontal scaling factor. | UIComponent | |
| scaleY : Number [override]
Number that specifies the vertical scaling factor. | UIComponent | |
| scaleZ : Number [override]
Number that specifies the scaling factor along the z axis. | UIComponent | |
| screen : Rectangle [read-only]
Returns an object that contains the size and position of the base
drawing surface for this object. | UIComponent | |
| scrollRect : Rectangle
The scroll rectangle bounds of the display object. | DisplayObject | |
| selected : Boolean
Contains true if the item renderer
can show itself as selected. | ItemRenderer | ||
| showInAutomationHierarchy : Boolean
A flag that determines if an automation object
shows in the automation hierarchy. | UIComponent | |
| showsCaret : Boolean
Contains true if the item renderer
can show itself as focused. | ItemRenderer | ||
| softKeyboard : String
Controls the appearance of the soft keyboard. | InteractiveObject | |
| softKeyboardInputAreaOfInterest : Rectangle
Defines the area that should remain on-screen when a soft keyboard is displayed (not available on iOS). | InteractiveObject | |
| soundTransform : flash.media:SoundTransform
Controls sound within this sprite. | Sprite | |
| stage : Stage [read-only]
The Stage of the display object. | DisplayObject | |
| states : Array
The view states that are defined for this component. | UIComponent | |
| styleDeclaration : CSSStyleDeclaration
Storage for the inline inheriting styles on this object. | UIComponent | |
| styleManager : IStyleManager2 [read-only]
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 | |
| systemManager : ISystemManager
Returns the SystemManager object used by this component. | UIComponent | |
| tabChildren : Boolean
Determines whether the children of the object are tab enabled. | DisplayObjectContainer | |
| tabEnabled : Boolean
Specifies whether this object is in the tab order. | 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
Specifies the tab ordering of objects in a SWF file. | InteractiveObject | |
| textSnapshot : flash.text:TextSnapshot [read-only]
Returns a TextSnapshot object for this DisplayObjectContainer instance. | 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 [override]
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
A Boolean value that indicates whether the pointing hand (hand cursor) appears when the pointer rolls
over a sprite in which the buttonMode property is set to true. | Sprite | |
| validationSubField : String
Used by a validator to associate a subfield with this component. | UIComponent | |
| verticalCenter : Object
For components, this layout constraint property is a
facade on top of the similarly-named style. | UIComponent | |
| verticalScrollPosition : Number
The y coordinate of the origin of the viewport in the component's coordinate system,
where the default value is (0,0) corresponding to the upper-left corner of the component. | GroupBase | |
| visible : Boolean [override]
Whether or not the display object is visible. | UIComponent | |
| width : Number [override]
Number that specifies the width of the component, in pixels,
in the parent's coordinates. | UIComponent | |
| x : Number [override]
Number that specifies the component's horizontal position,
in pixels, within its parent container. | UIComponent | |
| y : Number [override]
Number that specifies the component's vertical position,
in pixels, within its parent container. | UIComponent | |
| z : Number [override]
Indicates the z coordinate position along the z-axis of the DisplayObject
instance relative to the 3D parent container. | UIComponent | |
Protected Properties
| Property | Defined By | ||
|---|---|---|---|
| currentCSSState : String [read-only]
The state to be used when matching CSS pseudo-selectors. | UIComponent | |
| down : Boolean
Set to true when the user is pressing down on an item renderer. | ItemRenderer | ||
| hasComplexLayoutMatrix : Boolean [read-only]
Returns true if the UIComponent has any non-translation (x,y) transform properties. | UIComponent | |
| hovered : Boolean
Set to true when the user is hovered over the item renderer. | ItemRenderer | ||
| resourceManager : IResourceManager [read-only]
A reference to the object which manages
all of the application's localized resources. | UIComponent | |
| unscaledHeight : Number [read-only]
A convenience method for determining the unscaled height
of the component. | UIComponent | |
| unscaledWidth : Number [read-only]
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 | |
Public Methods
| Method | Defined By | ||
|---|---|---|---|
Constructor. | ItemRenderer | ||
|
Adds a visual element to this container. | Group | |
|
Adds a visual element to this container. | Group | |
| addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void
Registers an event listener object with an EventDispatcher object so that the listener
receives notification of an event. | EventDispatcher | |
|
Adds a non-visual style client to this component instance. | UIComponent | |
|
Indicates whether the security restrictions
would cause any display objects to be omitted from the list returned by calling
the DisplayObjectContainer.getObjectsUnderPoint() method
with the specified point point. | DisplayObjectContainer | |
|
Queues a function to be called later. | UIComponent | |
|
Deletes a style property from this component instance. | UIComponent | |
|
Determines whether the specified display object is a child of the DisplayObjectContainer instance or
the instance itself. | DisplayObjectContainer | |
|
Determines whether the specified IVisualElement is a
child of the container instance or the instance
itself. | GroupBase | |
|
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 | |
| [override]
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 | |
|
Returns a rectangle that defines the area of the display object relative to the coordinate system
of the targetCoordinateSpace object. | 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 | |
|
Returns the child display object that exists with the specified name. | 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 | |
|
Returns the visual element at the specified index. | GroupBase | |
|
Returns the index position of a visual element. | GroupBase | |
|
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 change to the horizontal scroll position to handle
different scrolling options. | GroupBase | |
|
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 | |
|
Returns an array of objects that lie under the specified point and are children
(or grandchildren, and so on) of this DisplayObjectContainer instance. | DisplayObjectContainer | |
|
Returns the element's preferred height. | UIComponent | |
|
Returns the element's preferred width. | UIComponent | |
|
Returns a rectangle that defines the boundary of the display object,
based on the coordinate system defined by the targetCoordinateSpace
parameter, excluding any strokes on shapes. | 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 | |
|
Returns the change to the vertical scroll position to handle
different scrolling options. | GroupBase | |
|
Layouts that honor the useVirtualLayout flag will use this
method at updateDisplayList() time to get layout elements that are "in view",
i.e. | GroupBase | |
|
Converts a Point object from global to content coordinates. | UIComponent | |
|
Converts the point object from the Stage (global) coordinates
to the display object's (local) coordinates. | DisplayObject | |
|
Converts a two-dimensional point from the Stage (global) coordinates to a
three-dimensional display object's (local) coordinates. | DisplayObject | |
|
Returns true if currentCSSState is not null. | UIComponent | |
|
Checks whether the EventDispatcher object has any listeners registered for a specific type
of event. | EventDispatcher | |
|
Indicates whether an object has a specified property defined. | Object | |
|
Determines whether the specified state has been defined on this
UIComponent. | UIComponent | |
|
Evaluates the bounding box of the display object to see if it overlaps or intersects with the
bounding box of the obj display object. | DisplayObject | |
|
Evaluates the display object to see if it overlaps or intersects with the
point specified by the x and y parameters. | 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 | |
|
Notify the host component that an element has changed and needs to be redrawn. | Group | |
|
Notify the host component that an element changed and needs to validate properties. | Group | |
|
Notify the host that an element layer has changed. | Group | |
|
Notify the host component that an element size has changed. | Group | |
|
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 | |
|
Indicates whether an instance of the Object class is in the prototype chain of the object specified
as the parameter. | Object | |
|
Converts a three-dimensional point of the three-dimensional display
object's (local) coordinates to a two-dimensional point in the Stage (global) coordinates. | DisplayObject | |
|
Converts a Point object from local to content coordinates. | UIComponent | |
|
Converts the point object from the display object's (local) coordinates to the
Stage (global) coordinates. | 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 | |
|
Indicates whether the specified property exists and is enumerable. | 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 | |
|
Removes all visual elements from the container. | Group | |
|
Removes all child DisplayObject instances from the child list of the DisplayObjectContainer instance. | DisplayObjectContainer | |
|
Removes the specified visual element from the child list of
this container. | Group | |
|
Removes a visual element from the specified index position
in the container. | Group | |
|
Removes a listener from the EventDispatcher object. | EventDispatcher | |
|
Removes a non-visual style client from this component instance. | UIComponent | |
|
Replays the specified event. | UIComponent | |
|
Raises a virtual keyboard. | InteractiveObject | |
|
Resolves a child by using the id provided. | UIComponent | |
| [static]
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 | |
|
Sets the contentWidth and contentHeight
properties. | GroupBase | |
|
Set the current state. | UIComponent | |
|
Changes the position of an existing visual element in the visual container. | Group | |
|
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 | |
|
Sets the availability of a dynamic property for loop operations. | Object | |
|
Sets a style property on this component instance. | UIComponent | |
|
Called when the visible property changes. | UIComponent | |
|
Lets the user drag the specified sprite. | Sprite | |
|
Lets the user drag the specified sprite on a touch-enabled device. | Sprite | |
|
Recursively stops the timeline execution of all MovieClips rooted at this object. | DisplayObjectContainer | |
|
Ends the startDrag() method. | Sprite | |
|
Ends the startTouchDrag() method, for use with touch-enabled devices. | Sprite | |
|
Detects changes to style properties. | UIComponent | |
|
Flex calls the stylesInitialized() method when
the styles for a component are first initialized. | UIComponent | |
| [static]
Blocks the background processing of methods
queued by callLater(),
until resumeBackgroundProcessing() is called. | UIComponent | |
|
Swaps the index of the two specified visual elements. | Group | |
|
Swaps the visual elements at the two specified index
positions in the container. | Group | |
|
Returns the string representation of this object, formatted according to locale-specific conventions. | Object | |
| [override]
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 | |
|
Returns the primitive value of the specified object. | Object | |
|
Returns a box Matrix which can be passed to drawRoundRect()
as the rot parameter when drawing a vertical gradient. | UIComponent | |
|
Checks whether an event listener is registered with this EventDispatcher object or any of
its ancestors for the specified event type. | EventDispatcher | |
Protected Methods
| Method | Defined By | ||
|---|---|---|---|
|
Adjust the focus rectangle. | UIComponent | |
|
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 | |
|
Determines if the call to the measure() method can be skipped. | UIComponent | |
|
Performs any final processing after child objects are created. | UIComponent | |
|
Processes the properties set on the component. | UIComponent | |
| [override]
If the layout object has not been set yet,
createChildren() assigns this container a
default layout object, BasicLayout.
| GroupBase | |
|
Creates a new object using a context
based on the embedded font being used. | UIComponent | |
|
Creates the object using a given moduleFactory. | UIComponent | |
|
Helper method for dispatching a PropertyChangeEvent
when a property is updated. | UIComponent | |
|
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 renderer. | ItemRenderer | ||
|
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 | |
Marks the renderer's state as invalid so that the new state is set
during a later screen update. | ItemRenderer | ||
|
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 | |
|
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 | |
|
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 | |
Styles
Styles are either common or associated with a specific theme. If the style is common, it can be used with any theme. If a style is associated with a specific theme, it can only be used if your application uses that theme.
Common Styles
Spark Theme Styles
Halo Theme Styles
Mobile Theme Styles
Public Constants
Property Detail
autoDrawBackground | property |
autoDrawBackground:Boolean| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 4 |
| Runtime Versions: | Flash Player 10, AIR 1.5 |
Specifies whether the item renderer draws the background of the data item during user interaction. Interactions include moving the mouse over the item, selecting the item, and moving the caret of the item.
If true, the background for
the item renderer is automatically drawn, and it
depends on the styles that are set (contentBackgroundColor,
alternatingItemColor, rollOverColor,
downColor, selectionColor)
and the state that the item renderer is in.
If false, the item render draws no backgrounds.
Your custom item renderer is responsible for displaying the
background colors for all user interactions.
The default value is true.
Implementation
public function get autoDrawBackground():Boolean public function set autoDrawBackground(value:Boolean):voiddown | property |
down:Boolean| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 4 |
| Runtime Versions: | Flash Player 10, AIR 1.5 |
Set to true when the user is pressing down on an item renderer.
The default value is false.
Implementation
protected function get down():Boolean protected function set down(value:Boolean):voiddragging | property |
hovered | property |
hovered:Boolean| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 4 |
| Runtime Versions: | Flash Player 10, AIR 1.5 |
Set to true when the user is hovered over the item renderer.
The default value is false.
Implementation
protected function get hovered():Boolean protected function set hovered(value:Boolean):voiditemIndex | property |
itemIndex:int| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 4 |
| Runtime Versions: | Flash Player 10, AIR 1.5 |
The index of the item in the data provider of the host component of the item renderer.
The default value is 0.
This property can be used as the source for data binding. When this property is modified, it dispatches the itemIndexChanged event.
Implementation
public function get itemIndex():int public function set itemIndex(value:int):voidlabel | property |
label:String| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 4 |
| Runtime Versions: | Flash Player 10, AIR 1.5 |
The String to display in the item renderer.
The host component of the item renderer can use the
itemToLabel() method to convert the data item
to a String for display by the item renderer.
For controls like List and ButtonBar, you can use the
labelField or labelFunction properties
to specify the field of the data item that contains the String.
Otherwise the host component uses the toString() method
to convert the data item to a String.
The default value is "".
This property can be used as the source for data binding. When this property is modified, it dispatches the labelChanged event.
Implementation
public function get label():String public function set label(value:String):voidlabelDisplay | property |
public var labelDisplay:spark.components.supportClasses:TextBase| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 4 |
| Runtime Versions: | Flash Player 10, AIR 1.5 |
Optional item renderer label component.
This component is used to determine the value of the
baselinePosition property in the host component of
the item renderer.
selected | property |
selected:Boolean| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 4 |
| Runtime Versions: | Flash Player 10, AIR 1.5 |
Contains true if the item renderer
can show itself as selected.
The default value is false.
Implementation
public function get selected():Boolean public function set selected(value:Boolean):voidshowsCaret | property |
showsCaret:Boolean| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 4 |
| Runtime Versions: | Flash Player 10, AIR 1.5 |
Contains true if the item renderer
can show itself as focused.
The default value is false.
Implementation
public function get showsCaret():Boolean public function set showsCaret(value:Boolean):voidConstructor Detail
ItemRenderer | () | Constructor |
public function ItemRenderer()| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 4 |
| Runtime Versions: | Flash Player 10, AIR 1.5 |
Constructor.
Method Detail
getCurrentRendererState | () | method |
protected function getCurrentRendererState():String| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 4 |
| Runtime Versions: | Flash Player 10, AIR 1.5 |
Returns the name of the state to be applied to the renderer. For example, a very basic List item renderer would return the String "normal", "hovered", or "selected" to specify the renderer's state. If dealing with touch interactions (or mouse interactions where selection is ignored), "down" and "downAndSelected" are also important states.
A subclass of ItemRenderer must override this method to return a value if the behavior desired differs from the default behavior.
In Flex 4.0, the 3 main states were "normal", "hovered", and "selected". In Flex 4.5, "down" and "downAndSelected" have been added.
The full set of states supported (in order of precedence) are:
- dragging
- downAndSelected
- selectedAndShowsCaret
- hoveredAndShowsCaret
- normalAndShowsCaret
- down
- selected
- hovered
- normal
String — A String specifying the name of the state to apply to the renderer.
|
invalidateRendererState | () | method |
protected function invalidateRendererState():void| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 4.5 |
| Runtime Versions: | Flash Player 10.1, AIR 2.5 |
Marks the renderer's state as invalid so that the new state is set during a later screen update.
Mon Apr 10 2017, 12:28 PM -07:00