fl.controls.RadioButton (ActionScript 3.0)

Package	fl.controls
Class	public class RadioButton
Inheritance	RadioButton LabelButton BaseButton UIComponent Sprite DisplayObjectContainer InteractiveObject DisplayObject EventDispatcher Object
Implements	IFocusManagerGroup

Language Version :

ActionScript 3.0

Runtime Versions :

AIR 1.0, Flash Player 9.0.28.0

The RadioButton component lets you force a user to make a single selection from a set of choices. This component must be used in a group of at least two RadioButton instances. Only one member of the group can be selected at any given time. Selecting one radio button in a group deselects the currently selected radio button in the group. You set the groupName parameter to indicate which group a radio button belongs to. When the user clicks or tabs into a RadioButton component group, only the selected radio button receives focus.

A radio button can be enabled or disabled. A disabled radio button does not receive mouse or keyboard input.

View the examples

See also

RadioButtonGroup

Public Properties

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	Property		Defined By
		accessibilityProperties : AccessibilityProperties The current accessibility options for this display object.	DisplayObject
		alpha : Number Indicates the alpha transparency value of the object specified.	DisplayObject
		autoRepeat : Boolean A radio button never auto-repeats by definition, so the autoRepeat property is set to false in the constructor and cannot be changed.	RadioButton
		blendMode : String A value from the BlendMode class that specifies which blend mode to use.	DisplayObject
		buttonMode : Boolean Specifies the button mode of this sprite.	Sprite
		cacheAsBitmap : Boolean If set to true, Flash Player or Adobe AIR caches an internal bitmap representation of the display object.	DisplayObject
		constructor : Object A reference to the class object or constructor function for a given object instance.	Object
		contextMenu : NativeMenu Specifies the context menu associated with this object.	InteractiveObject
		doubleClickEnabled : Boolean Specifies whether the object receives doubleClick events.	InteractiveObject
		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 Gets or sets a value that indicates whether the component can accept user input.	BaseButton
		filters : Array An indexed array that contains each filter object currently associated with the display object.	DisplayObject
		focusEnabled : Boolean Gets or sets a Boolean value that indicates whether the component can receive focus after the user clicks it.	UIComponent
		focusManager : IFocusManager Gets or sets the FocusManager that controls focus for this component and its peers.	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
		group : RadioButtonGroup The RadioButtonGroup object to which this RadioButton belongs.	RadioButton
		groupName : String The group name for a radio button instance or group.	RadioButton
		height : Number Gets or sets the height of the component, in pixels.	UIComponent
		hitArea : Sprite Designates another sprite to serve as the hit area for a sprite.	Sprite
		label : String Gets or sets the text label for the component.	LabelButton
		labelPlacement : String Position of the label in relation to a specified icon.	LabelButton
		loaderInfo : LoaderInfo [read-only] Returns a LoaderInfo object containing information about loading the file to which this display object belongs.	DisplayObject
		mask : DisplayObject The calling display object is masked by the specified mask object.	DisplayObject
		mouseChildren : Boolean Determines whether or not the children of the object are mouse enabled.	DisplayObjectContainer
		mouseEnabled : Boolean Specifies whether this object receives mouse messages.	InteractiveObject
		mouseFocusEnabled : Boolean Gets or sets a value that indicates whether the component can receive focus after the user clicks it.	UIComponent
		mouseX : Number [read-only] Indicates the x coordinate of the mouse position, in pixels.	DisplayObject
		mouseY : Number [read-only] Indicates the y coordinate of the mouse position, in pixels.	DisplayObject
		name : String Indicates the instance name of the DisplayObject.	DisplayObject
		numChildren : int [read-only] Returns the number of children of this object.	DisplayObjectContainer
		opaqueBackground : Object Specifies whether the display object is opaque with a certain background color.	DisplayObject
		parent : DisplayObjectContainer [read-only] Indicates the DisplayObjectContainer object that contains this display object.	DisplayObject
		prototype : Object [static] A reference to the prototype object of a class or function object.	Object
		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 Indicates the rotation of the DisplayObject instance, in degrees, from its original orientation.	DisplayObject
		scale9Grid : Rectangle The current scaling grid that is in effect.	DisplayObject
		scaleX : Number Multiplies the current width of the component by a scale factor.	UIComponent
		scaleY : Number Multiplies the current height of the component by a scale factor.	UIComponent
		scrollRect : Rectangle The scroll rectangle bounds of the display object.	DisplayObject
		selected : Boolean Indicates whether a radio button is currently selected (true) or deselected (false).	RadioButton
		soundTransform : SoundTransform Controls sound within this sprite.	Sprite
		stage : Stage [read-only] The Stage of the display object.	DisplayObject
		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
		tabIndex : int Specifies the tab ordering of objects in a SWF file.	InteractiveObject
		textField : TextField A reference to the component's internal text field.	LabelButton
		textSnapshot : TextSnapshot [read-only] Returns a TextSnapshot object for this DisplayObjectContainer instance.	DisplayObjectContainer
		toggle : Boolean A radio button is a toggle button; its toggle property is set to true in the constructor and cannot be changed.	RadioButton
		transform : Transform An object with properties pertaining to a display object's matrix, color transform, and pixel bounds.	DisplayObject
		useHandCursor : Boolean A Boolean value that indicates whether the pointing hand (hand cursor) appears when the mouse rolls over a sprite in which the buttonMode property is set to true.	Sprite
		value : Object A user-defined value that is associated with a radio button.	RadioButton
		version : String = "3.0.0.15" The version number of the components.	UIComponent
		visible : Boolean Gets or sets a value that indicates whether the current component instance is visible.	UIComponent
		width : Number Gets or sets the width of the component, in pixels.	UIComponent
		x : Number Gets or sets the x coordinate that represents the position of the component along the x axis within its parent container.	UIComponent
		y : Number Gets or sets the y coordinate that represents the position of the component along the y axis within its parent container.	UIComponent

Public Methods

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	Method		Defined By
		RadioButton() Creates a new RadioButton component instance.	RadioButton
		addChild(child:DisplayObject):DisplayObject Adds a child DisplayObject instance to this DisplayObjectContainer instance.	DisplayObjectContainer
		addChildAt(child:DisplayObject, index:int):DisplayObject Adds a child DisplayObject instance to this DisplayObjectContainer instance.	DisplayObjectContainer
		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
		areInaccessibleObjectsUnderPoint(point:Point):Boolean 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
		clearStyle(style:String):void Deletes a style property from this component instance.	UIComponent
		contains(child:DisplayObject):Boolean Determines whether the specified display object is a child of the DisplayObjectContainer instance or the instance itself.	DisplayObjectContainer
		dispatchEvent(event:Event):Boolean Dispatches an event into the event flow.	EventDispatcher
		drawFocus(focused:Boolean):void Shows or hides the focus indicator around this component instance.	RadioButton
		drawNow():void Initiates an immediate draw operation, without invalidating everything as invalidateNow does.	UIComponent
		getBounds(targetCoordinateSpace:DisplayObject):Rectangle Returns a rectangle that defines the area of the display object relative to the coordinate system of the targetCoordinateSpace object.	DisplayObject
		getChildAt(index:int):DisplayObject Returns the child display object instance that exists at the specified index.	DisplayObjectContainer
		getChildByName(name:String):DisplayObject Returns the child display object that exists with the specified name.	DisplayObjectContainer
		getChildIndex(child:DisplayObject):int Returns the index position of a child DisplayObject instance.	DisplayObjectContainer
		getFocus():InteractiveObject Retrieves the object that currently has focus.	UIComponent
		getObjectsUnderPoint(point:Point):Array Returns an array of objects that lie under the specified point and are children (or grandchildren, and so on) of this DisplayObjectContainer instance.	DisplayObjectContainer
		getRect(targetCoordinateSpace:DisplayObject):Rectangle 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
		getStyle(style:String):Object Retrieves a style property that is set in the style lookup chain of the component.	UIComponent
		getStyleDefinition():Object [static] Retrieves the default style map for the current component.	RadioButton
		globalToLocal(point:Point):Point Converts the point object from the Stage (global) coordinates to the display object's (local) coordinates.	DisplayObject
		hasEventListener(type:String):Boolean Checks whether the EventDispatcher object has any listeners registered for a specific type of event.	EventDispatcher
		hasOwnProperty(name:String):Boolean Indicates whether an object has a specified property defined.	Object
		hitTestObject(obj:DisplayObject):Boolean Evaluates the display object to see if it overlaps or intersects with the obj display object.	DisplayObject
		hitTestPoint(x:Number, y:Number, shapeFlag:Boolean = false):Boolean Evaluates the display object to see if it overlaps or intersects with the point specified by the x and y parameters.	DisplayObject
		invalidate(property:String, callLater:Boolean = true):void Marks a property as invalid and redraws the component on the next frame unless otherwise specified.	UIComponent
		isPrototypeOf(theClass:Object):Boolean Indicates whether an instance of the Object class is in the prototype chain of the object specified as the parameter.	Object
		localToGlobal(point:Point):Point Converts the point object from the display object's (local) coordinates to the Stage (global) coordinates.	DisplayObject
		mergeStyles(... list):Object [static] Merges the styles from multiple classes into one object.	UIComponent
		move(x:Number, y:Number):void Moves the component to the specified position within its parent.	UIComponent
		propertyIsEnumerable(name:String):Boolean Indicates whether the specified property exists and is enumerable.	Object
		removeChild(child:DisplayObject):DisplayObject Removes the specified child DisplayObject instance from the child list of the DisplayObjectContainer instance.	DisplayObjectContainer
		removeChildAt(index:int):DisplayObject Removes a child DisplayObject from the specified index position in the child list of the DisplayObjectContainer.	DisplayObjectContainer
		removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void Removes a listener from the EventDispatcher object.	EventDispatcher
		setChildIndex(child:DisplayObject, index:int):void Changes the position of an existing child in the display object container.	DisplayObjectContainer
		setFocus():void Sets the focus to this component.	UIComponent
		setMouseState(state:String):void Set the mouse state via ActionScript.	BaseButton
		setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void Sets the availability of a dynamic property for loop operations.	Object
		setSize(width:Number, height:Number):void Sets the component to the specified width and height.	UIComponent
		setStyle(style:String, value:Object):void Sets a style property on this component instance.	UIComponent
		startDrag(lockCenter:Boolean = false, bounds:Rectangle = null):void Lets the user drag the specified sprite.	Sprite
		stopDrag():void Ends the startDrag() method.	Sprite
		swapChildren(child1:DisplayObject, child2:DisplayObject):void Swaps the z-order (front-to-back order) of the two specified child objects.	DisplayObjectContainer
		swapChildrenAt(index1:int, index2:int):void Swaps the z-order (front-to-back order) of the child objects at the two specified index positions in the child list.	DisplayObjectContainer
		toString():String Returns the string representation of the specified object.	Object
		validateNow():void Validates and updates the properties and layout of this object, redrawing it if necessary.	UIComponent
		valueOf():Object Returns the primitive value of the specified object.	Object
		willTrigger(type:String):Boolean Checks whether an event listener is registered with this EventDispatcher object or any of its ancestors for the specified event type.	EventDispatcher

Protected Methods

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	Method		Defined By
		getStyleValue(name:String):Object Returns the specified style for a component, considering all styles set on the global level, component level and instance level.	UIComponent

Events

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	Summary	Defined By
activate	Dispatched when Flash Player or an AIR application gains operating system focus and becomes active.	EventDispatcher
added	Dispatched when a display object is added to the display list.	DisplayObject
addedToStage	Dispatched when a display object is added to the on stage display list, either directly or through the addition of a sub tree in which the display object is contained.	DisplayObject
buttonDown	Dispatched when the user presses the Button component.	BaseButton
change	Dispatched when the radio button instance's selected property changes.	RadioButton
click	Dispatched when the user clicks the radio button with the mouse or spacebar.	RadioButton
contextMenu	Dispatched when the user selects the context menu associated with this interactive object in an AIR application.	InteractiveObject
deactivate	Dispatched when Flash Player or an AIR application loses operating system focus and is becoming inactive.	EventDispatcher
doubleClick	Dispatched when a user presses and releases the main button of a pointing device twice in rapid succession over the same InteractiveObject when that object's doubleClickEnabled flag is set to true.	InteractiveObject
enterFrame	Dispatched when the playhead is entering a new frame.	DisplayObject
focusIn	Dispatched after a display object gains focus.	InteractiveObject
focusOut	Dispatched after a display object loses focus.	InteractiveObject
hide	Dispatched after the component visibility changes from visible to invisible.	UIComponent
keyDown	Dispatched when the user presses a key.	InteractiveObject
keyFocusChange	Dispatched when the user attempts to change focus by using keyboard navigation.	InteractiveObject
keyUp	Dispatched when the user releases a key.	InteractiveObject
labelChange	Dispatched after the label value changes.	LabelButton
middleClick	Dispatched when a user presses and releases the middle button of the user's pointing device over the same InteractiveObject.	InteractiveObject
middleMouseDown	Dispatched when a user presses the middle pointing device button over an InteractiveObject instance.	InteractiveObject
middleMouseUp	Dispatched when a user releases the pointing device button over an InteractiveObject instance.	InteractiveObject
mouseDown	Dispatched when a user presses the pointing device button over an InteractiveObject instance.	InteractiveObject
mouseFocusChange	Dispatched when the user attempts to change focus by using a pointer device.	InteractiveObject
mouseMove	Dispatched when a user moves the pointing device while it is over an InteractiveObject.	InteractiveObject
mouseOut	Dispatched when the user moves a pointing device away from an InteractiveObject instance.	InteractiveObject
mouseOver	Dispatched when the user moves a pointing device over an InteractiveObject instance.	InteractiveObject
mouseUp	Dispatched when a user releases the pointing device button over an InteractiveObject instance.	InteractiveObject
mouseWheel	Dispatched when a mouse wheel is spun over an InteractiveObject instance.	InteractiveObject
move	Dispatched after the component is moved.	UIComponent
nativeDragComplete	Dispatched by the drag initiator InteractiveObject when the user releases the drag gesture.	InteractiveObject
nativeDragDrop	Dispatched by the target InteractiveObject when a dragged object is dropped on it and the drop has been accepted with a call to DragManager.acceptDragDrop().	InteractiveObject
nativeDragEnter	Dispatched by an InteractiveObject when a drag gesture enters its boundary.	InteractiveObject
nativeDragExit	Dispatched by an InteractiveObject when a drag gesture leaves its boundary.	InteractiveObject
nativeDragOver	Dispatched by an InteractiveObject continually while a drag gesture remains within its boundary.	InteractiveObject
nativeDragStart	Dispatched at the beginning of a drag operation by the InteractiveObject that is specified as the drag initiator in the DragManager.doDrag() call.	InteractiveObject
nativeDragUpdate	Dispatched during a drag operation by the InteractiveObject that is specified as the drag initiator in the DragManager.doDrag() call.	InteractiveObject
removed	Dispatched when a display object is about to be removed from the display list.	DisplayObject
removedFromStage	Dispatched when a display object is about to be removed from the display list, either directly or through the removal of a sub tree in which the display object is contained.	DisplayObject
render	Dispatched when the display list is about to be updated and rendered.	DisplayObject
resize	Dispatched after the component is resized.	UIComponent
rightClick	Dispatched when a user presses and releases the right button of the user's pointing device over the same InteractiveObject.	InteractiveObject
rightMouseDown	Dispatched when a user presses the pointing device button over an InteractiveObject instance.	InteractiveObject
rightMouseUp	Dispatched when a user releases the pointing device button over an InteractiveObject instance.	InteractiveObject
rollOut	Dispatched when the user moves a pointing device away from an InteractiveObject instance.	InteractiveObject
rollOver	Dispatched when the user moves a pointing device over an InteractiveObject instance.	InteractiveObject
show	Dispatched after the component visibility changes from invisible to visible.	UIComponent
tabChildrenChange	Dispatched when the value of the object's tabChildren flag changes.	InteractiveObject
tabEnabledChange	Dispatched when the object's tabEnabled flag changes.	InteractiveObject
tabIndexChange	Dispatched when the value of the object's tabIndex property changes.	InteractiveObject

Styles

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	Description	Defined By
disabledIcon	Type: Class Name of the class to use as the icon when the button is not disabled. The default value is `RadioButton_disabledIcon`.	RadioButton
disabledSkin	Type: Class Name of the class to use as the skin for the background and border when the button is not selected and is disabled.	LabelButton
disabledTextFormat	Type: flash.text.TextFormat The TextFormat object to use to render the component label when the button is disabled.	UIComponent
downIcon	Type: Class Name of the class to use as the icon when the button is not selected and the mouse button is down. The default value is `RadioButton_downIcon`.	RadioButton
downSkin	Type: Class Name of the class to use as the skin for the background and border when the button is not selected and the mouse button is down.	LabelButton
embedFonts	Type: Boolean Indicates whether embedded font outlines are used to render the text field.	LabelButton
focusRectPadding	Type: Number Format: Length The padding that separates the outside boundaries of the component from the outside edges of the focus indicator, in pixels.	UIComponent
focusRectSkin	Type: Class The skin to be used to display focus indicators.	UIComponent
icon	Type: Class Name of the class to use as the icon when a toggle button is not selected and the mouse is not over the button. The default value is `null`.	RadioButton
overIcon	Type: Class Name of the class to use as the icon when the button is not selected and the mouse is over the component. The default value is `RadioButton_overIcon`.	RadioButton
overSkin	Type: Class Name of the class to use as the skin for the background and border when the button is not selected and the mouse is over the component.	LabelButton
repeatDelay	Type: Number Format: Time The number of milliseconds to wait after the `buttonDown` event is first dispatched before sending a second `buttonDown` event.	LabelButton
repeatInterval	Type: Number Format: Time The interval, in milliseconds, between `buttonDown` events that are dispatched after the delay that is specified by the `repeatDelay` style.	LabelButton
selectedDisabledIcon	Type: Class Name of the class to use as the icon when the button is selected and disabled. The default value is `RadioButton_selectedDisabledIcon`.	RadioButton