| Package | mx.controls |
| Class | public class Image |
| Inheritance | Image  SWFLoader UIComponent FlexSprite flash.display.Sprite |
| Implements | IDataRenderer, IDropInListItemRenderer, IListItemRenderer |
| Language Version : | ActionScript 3.0 |
| Product Version : | Flex 3 |
| Runtime Versions : | Flash Player 9, AIR 1.1 |
 | Starting with Flex 4.5, Apache recommends that you use the spark.components.Image class as an alternative to this class. |
@Embed(source='filename').
Note: Flex also includes the SWFLoader control for loading Flex applications. You typically use the Image control for loading static graphic files and SWF files, and use the SWFLoader control for loading Flex applications. The Image control is also designed to be used in custom item renderers and item editors.
Note: Flex also includes the BitmapImage class. This class is used for embedding images into skins and FXG components.
Embedded images load immediately, because they are already part of the Flex SWF file. However, they add to the size of your application and slow down the application initialization process. Embedded images also require you to recompile your applications whenever your image files change.
The alternative to embedding a resource is to load the resource at runtime. You can load a resource from the local file system in which the SWF file runs, or you can access a remote resource, typically though an HTTP request over a network. These images are independent of your Flex application, so you can change them without causing a recompile operation as long as the names of the modified images remain the same. The referenced images add no additional overhead to an application's initial loading time. However, you might experience a delay when you use the images and load them into Flash Player or AIR.
A SWF file can access one type of external resource only, either local or over a network;
it cannot access both types. You determine the type of access allowed by the SWF file
using the use-network flag when you compile your application.
When the use-network flag is set to false, you can access
resources in the local file system, but not over the network.
The default value is true, which allows you to access resources
over the network, but not in the local file system.
When you load images at runtime, you should be aware of the security restrictions of Flash Player or AIR. For example, in Flash Player you can load an image from any domain by using a URL, but the default security settings won't allow your code to access the bitmap data of the image unless it came from the same domain as the application. To access bitmap data from images on other servers, you must use a crossdomain.xml file.
The PNG and GIF formats also support the use of an alpha channel for creating transparent images.
When you use the Image control as a drop-in item renderer in a List control,
either set an explicit row height of the List control, by
using the rowHeight property,
or set the variableRowHeight property of the List control
to true to size the row correctly.
If you find memory problems related to Images objects, try explicitly
setting the source property to null when you are done using
the Image object in your application.
Hide MXML SyntaxThe <mx:Image> tag inherits the tag attributes of its superclass,
and adds the following tag attribute:
Show MXML Syntax
<mx:Image
Events
dataChange="No default"
/>
See also
| 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 | |
| accessibilityName : String
A convenience accessor for the name property
in this UIComponent's accessibilityProperties object. | UIComponent | |
| 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 | |
| autoLoad : Boolean
A flag that indicates whether content starts loading automatically
or waits for a call to the load() method. | SWFLoader | |
| 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 [read-only]
The y-coordinate of the baseline
of the first line of text of the component. | UIComponent | |
| bottom : Object
For components, this layout constraint property is a
facade on top of the similarly-named style. | UIComponent | |
| bytesLoaded : Number [read-only]
The number of bytes of the SWF or image file already loaded. | SWFLoader | |
| bytesTotal : Number [read-only]
The total size of the SWF or image file. | SWFLoader | |
| 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 | |
| childAllowsParent : Boolean [read-only]
Tests if the child allows its parent to access its display objects or listen
to messages that originate in the child. | SWFLoader | |
| className : String [read-only]
The name of this instance's class, such as "Button". | UIComponent | |
| content : DisplayObject [read-only]
This property contains the object that represents
the content that was loaded in the SWFLoader control. | SWFLoader | |
| contentHeight : Number [read-only]
Height of the scaled content loaded by the control, in pixels. | SWFLoader | |
| 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]
Width of the scaled content loaded by the control, in pixels. | SWFLoader | |
| 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 data property lets you pass a value to the component
when you use it in an item renderer or item editor. | Image | ||
| 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 | |
| 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 | |
| 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 | |
| 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 | |
| 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 [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 | |
| 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 | |
| listData : BaseListData
When a component is used as a drop-in item renderer or drop-in
item editor, Flex initializes the listData property
of the component with the appropriate data from the List control. | Image | ||
| loaderContext : LoaderContext
A LoaderContext object to use to control loading of the content. | SWFLoader | |
| loadForCompatibility : Boolean
A flag that indicates whether the content is loaded so that it can
interoperate with applications built with a different verion of the Flex compiler. | SWFLoader | |
| maintainAspectRatio : Boolean
A flag that indicates whether to maintain the aspect ratio
of the loaded content. | SWFLoader | |
| maintainProjectionCenter : Boolean
When true, the component keeps its projection matrix centered on the
middle of its bounding box. | UIComponent | |
| 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 | |
| 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 | |
| mouseFocusEnabled : Boolean
Whether you can receive focus when clicked on. | UIComponent | |
| MXMLDescriptor : Array [read-only] | UIComponent | |
| MXMLProperties : Array [read-only] | UIComponent | |
| 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 | |
| owner : DisplayObjectContainer
The owner of this IVisualElement object. | UIComponent | |
| parent : DisplayObjectContainer [override] [read-only]
The parent container or component for this component. | UIComponent | |
| parentAllowsChild : Boolean [read-only]
Tests if the parent allows its child to access its display objects or listen
to messages that originate in the parent. | SWFLoader | |
| 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 | |
| percentLoaded : Number [read-only]
The percentage of the image or SWF file already loaded. | SWFLoader | |
| percentWidth : Number
Specifies the width of a component as a percentage
of its parent's size. | UIComponent | |
| postLayoutTransformOffsets : 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 | |
| right : Object
For components, this layout constraint property is a
facade on top of the similarly-named style. | UIComponent | |
| rotation : Number [override] | 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]
| UIComponent | |
| scaleContent : Boolean
A flag that indicates whether to scale the content to fit the
size of the control or resize the control to the content's size. | SWFLoader | |
| 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 | |
| showBusyCursor : Boolean
A flag that indicates whether to show a busy cursor while
the content loads. | SWFLoader | |
| showInAutomationHierarchy : Boolean
A flag that determines if an automation object
shows in the automation hierarchy. | UIComponent | |
| smoothBitmapContent : Boolean
A flag that indicates whether to smooth the content when it
is scaled. | SWFLoader | |
| source : Object
The URL, object, class or string name of a class to
load as the content. | SWFLoader | |
| 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 | |
| swfBridge : IEventDispatcher [read-only]
A bridge to the application that is associated with the implementor of this
interface. | SWFLoader | |
| systemManager : ISystemManager
Returns the SystemManager object used by this component. | UIComponent | |
| 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 | |
| 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 : 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 | |
| trustContent : Boolean
If true, the content is loaded
into your security domain. | SWFLoader | |
| 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 | |
| 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 | |
| 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]
| UIComponent | |
| Method | Defined By | ||
|---|---|---|---|
Image()
Constructor. | Image | ||
| addStyleClient(styleClient:IAdvancedStyleClient):void
Adds a non-visual style client to this component instance. | UIComponent | |
| callLater(method:Function, args:Array = null):void
Queues a function to be called later. | UIComponent | |
| clearStyle(styleProp:String):void
Deletes a style property from this component instance. | UIComponent | |
| contentToGlobal(point:Point):Point
Converts a Point object from content coordinates to global coordinates. | UIComponent | |
| contentToLocal(point:Point):Point
Converts a Point object from content to local coordinates. | UIComponent | |
| createAutomationIDPart(child:IAutomationObject):Object
Returns a set of properties that identify the child within
this container. | UIComponent | |
| createAutomationIDPartWithRequiredProperties(child:IAutomationObject, properties:Array):Object
Returns a set of properties as automation IDs that identify the child within
this container. | UIComponent | |
| createReferenceOnParentDocument(parentDocument:IFlexDisplayObject):void
Creates an id reference to this IUIComponent object
on its parent document object. | UIComponent | |
| deleteReferenceOnParentDocument(parentDocument:IFlexDisplayObject):void
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 | |
| dispatchEvent(event:Event):Boolean [override]
Dispatches an event into the event flow. | UIComponent | |
| drawFocus(isFocused:Boolean):void
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 | |
| effectFinished(effectInst:IEffectInstance):void
Called by the effect instance when it stops playing on the component. | UIComponent | |
| effectStarted(effectInst:IEffectInstance):void
Called by the effect instance when it starts playing on the component. | UIComponent | |
| endEffectsStarted():void
Ends all currently playing effects on the component. | UIComponent | |
| executeBindings(recurse:Boolean = false):void
Executes all the bindings for which the UIComponent object is the destination. | UIComponent | |
| finishPrint(obj:Object, target:IFlexDisplayObject):void
Called after printing is complete. | UIComponent | |
| generateMXMLArray(document:Object, data:Array, recursive:Boolean = true):Array | UIComponent | |
| generateMXMLVector(document:Object, data:Array, recursive:Boolean = true):* | UIComponent | |
| getAutomationChildAt(index:int):IAutomationObject
Provides the automation object at the specified index. | UIComponent | |
| getAutomationChildren():Array
Provides the automation object list . | UIComponent | |
| getBoundsXAtSize(width:Number, height:Number, postLayoutTransform:Boolean = true):Number
Returns the x coordinate of the element's bounds at the specified element size. | UIComponent | |
| getBoundsYAtSize(width:Number, height:Number, postLayoutTransform:Boolean = true):Number
Returns the y coordinate of the element's bounds at the specified element size. | UIComponent | |
| getClassStyleDeclarations():Array
Finds the type selectors for this UIComponent instance. | UIComponent | |
| getConstraintValue(constraintName:String):*
Returns a layout constraint value, which is the same as
getting the constraint style for this component. | UIComponent | |
| getExplicitOrMeasuredHeight():Number
A convenience method for determining whether to use the
explicit or measured height
| UIComponent | |
| getExplicitOrMeasuredWidth():Number
A convenience method for determining whether to use the
explicit or measured width
| UIComponent | |
| getFocus():InteractiveObject
Gets the object that currently has focus. | UIComponent | |
| getLayoutBoundsHeight(postLayoutTransform:Boolean = true):Number
Returns the element's layout height. | UIComponent | |
| getLayoutBoundsWidth(postLayoutTransform:Boolean = true):Number
Returns the element's layout width. | UIComponent | |
| getLayoutBoundsX(postLayoutTransform:Boolean = true):Number
Returns the x coordinate that the element uses to draw on screen. | UIComponent | |
| getLayoutBoundsY(postLayoutTransform:Boolean = true):Number
Returns the y coordinate that the element uses to draw on screen. | UIComponent | |
| getLayoutMatrix():Matrix
Returns the transform matrix that is used to calculate the component's
layout relative to its siblings. | UIComponent | |
| getLayoutMatrix3D():Matrix3D
Returns the layout transform Matrix3D for this element. | UIComponent | |
| getMaxBoundsHeight(postLayoutTransform:Boolean = true):Number
Returns the element's maximum height. | UIComponent | |
| getMaxBoundsWidth(postLayoutTransform:Boolean = true):Number
Returns the element's maximum width. | UIComponent | |
| getMinBoundsHeight(postLayoutTransform:Boolean = true):Number
Returns the element's minimum height. | UIComponent | |
| getMinBoundsWidth(postLayoutTransform:Boolean = true):Number
Returns the element's minimum width. | UIComponent | |
| getPreferredBoundsHeight(postLayoutTransform:Boolean = true):Number
Returns the element's preferred height. | UIComponent | |
| getPreferredBoundsWidth(postLayoutTransform:Boolean = true):Number
Returns the element's preferred width. | UIComponent | |
| getRepeaterItem(whichRepeater:int = -1):Object
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 | |
| getStyle(styleProp:String):*
Gets a style property that has been set anywhere in this
component's style lookup chain. | UIComponent | |
| getVisibleApplicationRect(allApplications:Boolean = false):Rectangle
Get the bounds of the loaded application that are visible to the user
on the screen. | SWFLoader | |
| getVisibleRect(targetParent:DisplayObject = null):Rectangle
Get the bounds of this object that are visible to the user
on the screen. | UIComponent | |
| globalToContent(point:Point):Point
Converts a Point object from global to content coordinates. | UIComponent | |
| hasCSSState():Boolean
Returns true if currentCSSState is not null. | UIComponent | |
| hasState(stateName:String):Boolean
Determines whether the specified state has been defined on this
UIComponent. | UIComponent | |
| horizontalGradientMatrix(x:Number, y:Number, width:Number, height:Number):Matrix
Returns a box Matrix which can be passed to the
drawRoundRect() method
as the rot parameter when drawing a horizontal gradient. | UIComponent | |
| initialize():void
Initializes the internal structure of this component. | UIComponent | |
| initializeRepeaterArrays(parent:IRepeaterClient):void
Initializes various properties which keep track of repeated instances
of this component. | UIComponent | |
| invalidateDisplayList():void
Marks a component so that its updateDisplayList()
method gets called during a later screen update. | UIComponent | |
| invalidateLayering():void
Called by a component's items to indicate that their depth
property has changed. | UIComponent | |
| invalidateLayoutDirection():void
An element must call this method when its layoutDirection changes or
when its parent's layoutDirection changes. | UIComponent | |
| invalidateProperties():void
Marks a component so that its commitProperties()
method gets called during a later screen update. | UIComponent | |
| invalidateSize():void
Marks a component so that its measure()
method gets called during a later screen update. | UIComponent | |
| load(url:Object = null):void
Loads an image or SWF file. | SWFLoader | |
| localToContent(point:Point):Point
Converts a Point object from local to content coordinates. | UIComponent | |
| matchesCSSState(cssState:String):Boolean
Returns true if cssState matches currentCSSState. | UIComponent | |
| matchesCSSType(cssType:String):Boolean
Determines whether this instance is the same as, or is a subclass of,
the given type. | UIComponent | |
| measureHTMLText(htmlText:String):TextLineMetrics
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 | |
| measureText(text:String):TextLineMetrics
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 | |
| move(x:Number, y:Number):void
Moves the component to a specified position within its parent. | UIComponent | |
| notifyStyleChangeInChildren(styleProp:String, recursive:Boolean):void
Propagates style changes to the children. | UIComponent | |
| owns(child:DisplayObject):Boolean
Returns true if the chain of owner properties
points from child to this UIComponent. | UIComponent | |
| parentChanged(p:DisplayObjectContainer):void
Called by Flex when a UIComponent object is added to or removed from a parent. | UIComponent | |
| prepareToPrint(target:IFlexDisplayObject):Object
Prepares an IFlexDisplayObject for printing. | UIComponent | |
| regenerateStyleCache(recursive:Boolean):void
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 | |
| registerEffects(effects:Array):void
For each effect event, registers the EffectManager
as one of the event listeners. | UIComponent | |
| removeStyleClient(styleClient:IAdvancedStyleClient):void
Removes a non-visual style client from this component instance. | UIComponent | |
| replayAutomatableEvent(event:Event):Boolean
Replays the specified event. | UIComponent | |
| resolveAutomationIDPart(criteria:Object):Array
Resolves a child by using the id provided. | UIComponent | |
| resumeBackgroundProcessing():void [static]
Resumes the background processing of methods
queued by callLater(), after a call to
suspendBackgroundProcessing(). | UIComponent | |
| setActualSize(w:Number, h:Number):void
Sizes the object. | UIComponent | |
| setConstraintValue(constraintName:String, value:*):void
Sets a layout constraint value, which is the same as
setting the constraint style for this component. | UIComponent | |
| setCurrentState(stateName:String, playTransition:Boolean = true):void
Set the current state. | UIComponent | |
| setFocus():void
Sets the focus to this component. | UIComponent | |
| setLayoutBoundsPosition(x:Number, y:Number, postLayoutTransform:Boolean = true):void
Sets the coordinates that the element uses to draw on screen. | UIComponent | |
| setLayoutBoundsSize(width:Number, height:Number, postLayoutTransform:Boolean = true):void
Sets the layout size of the element. | UIComponent | |
| setLayoutMatrix(value:Matrix, invalidateLayout:Boolean):void
Sets the transform Matrix that is used to calculate the component's layout
size and position relative to its siblings. | UIComponent | |
| setLayoutMatrix3D(value:Matrix3D, invalidateLayout:Boolean):void
Sets the transform Matrix3D that is used to calculate the component's layout
size and position relative to its siblings. | UIComponent | |
| setMXMLDescriptor(value:Array):void | UIComponent | |
| setMXMLProperties(value:Array):void | UIComponent | |
| setStyle(styleProp:String, newValue:*):void
Sets a style property on this component instance. | UIComponent | |
| setVisible(value:Boolean, noEvent:Boolean = false):void
Called when the visible property changes. | UIComponent | |
| styleChanged(styleProp:String):void
Detects changes to style properties. | UIComponent | |
| stylesInitialized():void
Flex calls the stylesInitialized() method when
the styles for a component are first initialized. | UIComponent | |
| suspendBackgroundProcessing():void [static]
Blocks the background processing of methods
queued by callLater(),
until resumeBackgroundProcessing() is called. | UIComponent | |
| toString():String [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 | |
| transformPointToParent(localPosition:Vector3D, position:Vector3D, postLayoutPosition:Vector3D):void
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 | |
| unloadAndStop(invokeGarbageCollector:Boolean = true):void
Unloads an image or SWF file. | SWFLoader | |
| validateDisplayList():void
Validates the position and size of children and draws other
visuals. | UIComponent | |
| validateNow():void
Validate and update the properties and layout of this object
and redraw it, if necessary. | UIComponent | |
| validateProperties():void
Used by layout logic to validate the properties of a component
by calling the commitProperties() method. | UIComponent | |
| validateSize(recursive:Boolean = false):void
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 | |
| validationResultHandler(event:ValidationResultEvent):void
Handles both the valid and invalid events from a
validator assigned to this component. | UIComponent | |
| verticalGradientMatrix(x:Number, y:Number, width:Number, height:Number):Matrix
Returns a box Matrix which can be passed to drawRoundRect()
as the rot parameter when drawing a vertical gradient. | UIComponent | |
| Event | Summary | Defined By | ||
|---|---|---|---|---|
| Dispatched when the component is added to a container as a content child by using the addChild(), addChildAt(), addElement(), or addElementAt() method. | UIComponent | ||
| Dispatched when content loading is complete. | SWFLoader | ||
| Dispatched when the component has finished its construction, property processing, measuring, layout, and drawing. | UIComponent | ||
| Dispatched after the view state has changed. | UIComponent | ||
| Dispatched after the currentState property changes, but before the view state changes. | UIComponent | ||
| Dispatched when the data property changes. | Image | |||
| Dispatched by the drag initiator (the component that is the source of the data being dragged) when the drag operation completes, either when you drop the dragged data onto a drop target or when you end the drag-and-drop operation without performing a drop. | UIComponent | ||
| Dispatched by the drop target when the user releases the mouse over it. | UIComponent | ||
| Dispatched by a component when the user moves the mouse over the component during a drag operation. | UIComponent | ||
| Dispatched by the component when the user drags outside the component, but does not drop the data onto the target. | UIComponent | ||
| Dispatched by a component when the user moves the mouse while over the component during a drag operation. | UIComponent | ||
| Dispatched by the drag initiator when starting a drag operation. | UIComponent | ||
| Dispatched after an effect ends. | UIComponent | ||
| Dispatched just before an effect starts. | UIComponent | ||
| Dispatched after an effect is stopped, which happens only by a call to stop() on the effect. | UIComponent | ||
| Dispatched after the component has entered a view state. | UIComponent | ||
| Dispatched just before the component exits a view state. | UIComponent | ||
| Dispatched when an object's state changes from visible to invisible. | UIComponent | ||
| Dispatched when a network request is made over HTTP and Flash Player or AIR can detect the HTTP status code. | SWFLoader | ||
| Dispatched when the properties and methods of a loaded SWF file are accessible. | SWFLoader | ||
| Dispatched when the component has finished its construction and has all initialization properties set. | UIComponent | ||
| Dispatched when a component is monitored by a Validator and the validation failed. | UIComponent | ||
| Dispatched when an input/output error occurs. | SWFLoader | ||
| Dispatched from a component opened using the PopUpManager when the user clicks outside it. | UIComponent | ||
| Dispatched from a component opened using the PopUpManager when the user scrolls the mouse wheel outside it. | UIComponent | ||
| Dispatched when the object has moved. | UIComponent | ||
| Dispatched when a network operation starts. | SWFLoader | ||
| Dispatched at the beginning of the component initialization sequence. | UIComponent | ||
| Dispatched when content is loading. | SWFLoader | ||
| Dispatched when the component is removed from a container as a content child by using the removeChild(), removeChildAt(), removeElement(), or removeElementAt() method. | UIComponent | ||
| Dispatched when the component is resized. | UIComponent | ||
| Dispatched when a security error occurs while content is loading. | SWFLoader | ||
| Dispatched when an object's state changes from invisible to visible. | UIComponent | ||
| Dispatched after the component has entered a new state and any state transition animation to that state has finished playing. | UIComponent | ||
| Dispatched when a component interrupts a transition to its current state in order to switch to a new state. | UIComponent | ||
| Dispatched by the component when it is time to create a ToolTip. | UIComponent | ||
| Dispatched by the component when its ToolTip has been hidden and is to be discarded soon. | UIComponent | ||
| Dispatched by the component when its ToolTip is about to be hidden. | UIComponent | ||
| Dispatched by the component when its ToolTip is about to be shown. | UIComponent | ||
| Dispatched by the component when its ToolTip has been shown. | UIComponent | ||
| Dispatched by a component whose toolTip property is set, as soon as the user moves the mouse over it. | UIComponent | ||
| A non-cancellable event, dispatched by a component when it is done responding to a touch interaction user gesture. | UIComponent | ||
| A non-cancellable event, dispatched by a component when it starts responding to a touch interaction user gesture. | UIComponent | ||
| A cancellable event, dispatched by a component in an attempt to respond to a touch interaction user gesture. | UIComponent | ||
| Dispatched when a loaded object is removed, or when a second load is performed by the same SWFLoader control and the original content is removed prior to the new load beginning. | SWFLoader | ||
| Dispatched when an object has had its commitProperties(), measure(), and updateDisplayList() methods called (if needed). | UIComponent | ||
| Dispatched when a component is monitored by a Validator and the validation succeeded. | UIComponent | ||
| Dispatched when values are changed programmatically or by user interaction. | UIComponent | ||
| data | property |
data:Object| Language Version : | ActionScript 3.0 |
| Product Version : | Flex 3 |
| Runtime Versions : | Flash Player 9, AIR 1.1 |
The data property lets you pass a value to the component
when you use it in an item renderer or item editor.
You typically use data binding to bind a field of the data
property to a property of this component.
When you use the control as a drop-in item renderer, Flex
will use the listData.label property, if it exists,
as the value of the source property of this control, or
use the data property as the source property.
The default value is null.
This property can be used as the source for data binding.
public function get data():Object public function set data(value:Object):voidSee also
| listData | property |
listData:BaseListData| Language Version : | ActionScript 3.0 |
| Product Version : | Flex 3 |
| Runtime Versions : | Flash Player 9, AIR 1.1 |
When a component is used as a drop-in item renderer or drop-in
item editor, Flex initializes the listData property
of the component with the appropriate data from the List control.
The component can then use the listData property
to initialize the other properties of the drop-in
item renderer
You do not set this property in MXML or ActionScript; Flex sets it when the component is used as a drop-in item renderer or drop-in item editor.
The default value is null.
This property can be used as the source for data binding.
public function get listData():BaseListData public function set listData(value:BaseListData):voidSee also
| Image | () | Constructor |
public function Image()| Language Version : | ActionScript 3.0 |
| Product Version : | Flex 3 |
| Runtime Versions : | Flash Player 9, AIR 1.1 |
Constructor.
| dataChange | Event |
mx.events.FlexEventmx.events.FlexEvent.DATA_CHANGE| Language Version : | ActionScript 3.0 |
| Product Version : | Flex 3 |
| Runtime Versions : | Flash Player 9, AIR 1.1 |
Dispatched when the data property changes.
When you use a component as an item renderer,
the data property contains the data to display.
You can listen for this event and update the component
when the data property changes.
FlexEvent.DATA_CHANGE constant defines the value of the
type property of the event object for a dataChange event.
The properties of the event object have the following values:
| Property | Value |
|---|---|
bubbles | false |
cancelable | false |
currentTarget | The Object that defines the
event listener that handles the event. For example, if you use
myButton.addEventListener() to register an event listener,
myButton is the value of the currentTarget. |
target | The Object that dispatched the event;
it is not always the Object listening for the event.
Use the currentTarget property to always access the
Object listening for the event. |
<?xml version="1.0" encoding="utf-8"?>
<!--
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<!-- Simple example to demonstrate the Halo Image control. -->
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx">
<s:Panel id="myPanel"
title="Halo Image Control Example"
width="75%" height="75%"
horizontalCenter="0" verticalCenter="0">
<s:VGroup left="10" right="10" top="10" bottom="10">
<s:Label color="blue" text="Image embedded in the application."/>
<mx:Image source="@Embed('assets/Product1.png')"/>
</s:VGroup>
</s:Panel>
</s:Application>