mx.core.ContainerLayout - Adobe® Flex® 4 Language Reference (Flex 4)

Package	mx.core
Class	public final class ContainerLayout
Inheritance	ContainerLayout Object

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

The ContainerLayout class defines the constant values for the layout property of container classes.

Public Properties

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	Property		Defined By
		constructor : Object A reference to the class object or constructor function for a given object instance.	Object
		prototype : Object [static] A reference to the prototype object of a class or function object.	Object

Public Methods

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	Method		Defined By
		hasOwnProperty(name:String):Boolean Indicates whether an object has a specified property defined.	Object
		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
		propertyIsEnumerable(name:String):Boolean Indicates whether the specified property exists and is enumerable.	Object
		setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void Sets the availability of a dynamic property for loop operations.	Object
		toLocaleString():String Returns the string representation of this object, formatted according to locale-specific conventions.	Object
		toString():String Returns the string representation of the specified object.	Object
		valueOf():Object Returns the primitive value of the specified object.	Object

Public Constants

	Constant		Defined By
		ABSOLUTE : String = "absolute" [static] Use absolute layout for the contents of this container.	ContainerLayout
		HORIZONTAL : String = "horizontal" [static] Use horizontal layout for the contents of this container.	ContainerLayout
		VERTICAL : String = "vertical" [static] Use vertical layout for the contents of this container.	ContainerLayout

Constant Detail

ABSOLUTE

Constant

public static const ABSOLUTE:String = "absolute"

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

Use absolute layout for the contents of this container. You are responsible for explicitly specifying the position of each child.

The easiest way to do this is to specify the x, y, width, and height of each child.

The width and height can be specified as a percentage value in MXML. (In ActionScript you have to set the percentWidth and percentHeight properties.)

If you don't specify the width or percentWidth for a child, then its measuredWidth, as automatically determined by its measure() method, will be used. The same applies for its height.

As an alternative way of doing layout, you can use the anchor styles left, top, right , bottom, horizontalCenter, and verticalCenter on children to anchor them to the sides or the center of a container.

When you use absolute layout, the container's paddingLeft, paddingTop, paddingRight, paddingBottom, horizontalGap, verticalGap, horizontalAlign, andverticalAlign styles are ignored.

HORIZONTAL

Constant

public static const HORIZONTAL:String = "horizontal"

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

Use horizontal layout for the contents of this container. The container will automatically place its children in a single row.

If you don't specify the width or percentWidth for a child, then its measuredWidth, as automatically determined by its measure() method, is used. The same applies for its height.

You can control the spacing between children with the horizontalGap style, and the alignment of the children with the verticalAlign style. The paddingLeft, paddingTop, paddingRight, and paddingBottom styles control the space between the border of the container and the children.

VERTICAL

Constant

public static const VERTICAL:String = "vertical"

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

Use vertical layout for the contents of this container. The container will automatically place its children in a single column.

If you don't specify the width or percentWidth for a child, then its measuredWidth, as automatically determined by its measure() method, is used. The same applies for its height.

You can control the spacing between children with the verticalGap style, and the alignment of the children with the horizontalAlign style. The paddingLeft, paddingTop, paddingRight, and paddingBottom styles control the space between the border of the container and the children.