(Beta)
| Package | fl.controls |
| Class | public class List |
| Inheritance | List  SelectableList BaseScrollPane UIComponent Sprite DisplayObjectContainer InteractiveObject DisplayObject EventDispatcher Object |
| Implements | IFocusManagerComponent |
| Language Version: | ActionScript 3.0 |
| Product Version: | Flash CS3 |
| Runtime Versions: | Flash Player 9.0.28.0, AIR 1.0 |
The List component consists of items, rows, and a data provider, which are described as follows:
- Item: An ActionScript object that usually contains a descriptive
labelproperty and adataproperty that stores the data associated with that item. - Row: A component that is used to display the item.
- Data provider: A component that models the items that the List component displays.
By default, the List component uses the CellRenderer class to supply the rows in which list items are displayed. You can create these rows programmatically; this is usually done by subclassing the CellRenderer class. The CellRenderer class implements the ICellRenderer interface, which provides the set of properties and methods that the List component uses to manipulate its rows and to send data and state information to each row for display. This includes information about data sizing and selection.
The List component provides methods that act on its data provider--for example, the
addItem() and removeItem() methods. You can use these and
other methods to manipulate the data of any array that exists in the same frame as
a List component and then broadcast the changes to multiple views. If a List component
is not provided with an external data provider, these methods automatically create an
instance of a data provider and expose it through the List.dataProvider
property. The List component renders each row by using a Sprite that implements the
ICellRenderer interface. To specify this renderer, use the List.cellRenderer
property. You can also build an Array instance or get one from a server and use it as a
data model for multiple lists, combo boxes, data grids, and so on.
Public Properties
Hide Inherited Public Properties
Show Inherited Public Properties| Property | Defined By | ||
|---|---|---|---|
 | accessibilityImplementation : AccessibilityImplementation
The current accessibility implementation (AccessibilityImplementation)
for this InteractiveObject instance. | InteractiveObject | |
| accessibilityProperties : AccessibilityProperties
The current accessibility options for this display object. | DisplayObject | |
| alpha : Number
Indicates the alpha transparency value of the object specified. | DisplayObject | |
| blendMode : String
A value from the BlendMode class that specifies which blend mode to use. | DisplayObject | |
| blendShader : Shader [write-only]
Sets a shader that is used for blending the foreground and background. | DisplayObject | |
| 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 | |
| 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 | |
| filters : Array
An indexed array that contains each filter object currently associated with the display object. | DisplayObject | |
| 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 | |
| hitArea : Sprite
Designates another sprite to serve as the hit area for a sprite. | Sprite | |
| 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 | |
| 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 | |
| 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 | |
| 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 | |
| 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 | |
| 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 | |
| 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 | |
| rotationX : Number
Indicates the x-axis rotation of the DisplayObject instance, in degrees, from its original orientation relative to the 3D parent container. | DisplayObject | |
| rotationY : Number
Indicates the y-axis rotation of the DisplayObject instance, in degrees, from its original orientation relative to the 3D parent container. | DisplayObject | |
| rotationZ : Number
Indicates the z-axis rotation of the DisplayObject instance, in degrees, from its original orientation relative to the 3D parent container. | DisplayObject | |
| scale9Grid : Rectangle
The current scaling grid that is in effect. | DisplayObject | |
| scaleZ : Number
Indicates the depth scale (percentage) of an object as applied from the registration point of the object. | DisplayObject | |
| scrollRect : Rectangle
The scroll rectangle bounds of the display object. | DisplayObject | |
| 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 | |
| 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 | |
| textSnapshot : flash.text:TextSnapshot [read-only]
Returns a TextSnapshot object for this DisplayObjectContainer instance. | DisplayObjectContainer | |
| transform : flash.geom: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 pointer rolls
over a sprite in which the buttonMode property is set to true. | Sprite | |
| z : Number
Indicates the z coordinate position along the z-axis of the DisplayObject
instance relative to the 3D parent container. | DisplayObject | |
Public Methods
| Method | Defined By | ||
|---|---|---|---|
|
Adds a child DisplayObject instance to this DisplayObjectContainer instance. | DisplayObjectContainer | |
|
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 | |
|
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 | |
|
Determines whether the specified display object is a child of the DisplayObjectContainer instance or
the instance itself. | DisplayObjectContainer | |
|
Dispatches an event into the event flow. | EventDispatcher | |
|
Returns a rectangle that defines the area of the display object relative to the coordinate system
of the targetCoordinateSpace object. | DisplayObject | |
|
Returns the child display object instance that exists at the specified index. | DisplayObjectContainer | |
|
Returns the child display object that exists with the specified name. | DisplayObjectContainer | |
|
Returns the index position of a child DisplayObject instance. | DisplayObjectContainer | |
|
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 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 | |
|
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 | |
|
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 | |
|
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 | |
|
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 the point object from the display object's (local) coordinates to the
Stage (global) coordinates. | DisplayObject | |
|
Indicates whether the specified property exists and is enumerable. | Object | |
|
Removes the specified child DisplayObject instance from the child list of the DisplayObjectContainer instance. | DisplayObjectContainer | |
|
Removes a child DisplayObject from the specified index position in the child list of
the DisplayObjectContainer. | DisplayObjectContainer | |
|
Removes all child DisplayObject instances from the child list of the DisplayObjectContainer instance. | DisplayObjectContainer | |
|
Removes a listener from the EventDispatcher object. | EventDispatcher | |
|
Raises a virtual keyboard. | InteractiveObject | |
|
Changes the position of an existing child in the display object container. | DisplayObjectContainer | |
|
Sets the availability of a dynamic property for loop operations. | Object | |
|
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 | |
|
Swaps the z-order (front-to-back order) of the two specified child objects. | DisplayObjectContainer | |
|
Swaps the z-order (front-to-back order) of the child objects at the two specified index positions in the
child list. | DisplayObjectContainer | |
|
Returns the string representation of this object, formatted according to locale-specific conventions. | Object | |
|
Returns the string representation of the specified object. | Object | |
|
Returns the primitive value of the specified object. | Object | |
|
Checks whether an event listener is registered with this EventDispatcher object or any of
its ancestors for the specified event type. | EventDispatcher | |
Protected Methods
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
Public Constants
Property Detail
Constructor Detail
Method Detail
Examples How to use this example
ListExample.as
This example demonstrates how to create a List and populate other List instances with its selections.
- Add the List, Button, and Label classes to the library.
- Save this code as ListExample.as in the same directory as your FLA.
- Set the DocumentClass in the FLA to ListExample.
package
{
import flash.display.Sprite
public class ListExample extends Sprite
{
import flash.events.*;
import fl.data.DataProvider;
import fl.controls.List
import fl.controls.Label
import fl.controls.Button
private var clearButton:Button;
private var availableItems:List;
private var selectedItemList:List;
private var selectedItemsList:List;
public function ListExample() {
createComponents();
setupComponents();
}
private function setupComponents():void {
var dp:Array = new Array();
var i:uint;
var count:uint = availableItems.rowCount * 2;
for (i = 0; i < count; i++) {
dp.push({label:"Item " + i});
}
availableItems.allowMultipleSelection = true;
availableItems.dataProvider = new DataProvider(dp);
availableItems.addEventListener(Event.CHANGE, updateLists);
clearButton.addEventListener(MouseEvent.CLICK, clearHandler);
}
private function clearHandler(event:MouseEvent):void {
availableItems.clearSelection();
// clear data providers
selectedItemList.dataProvider = new DataProvider();
selectedItemsList.dataProvider = new DataProvider();
}
private function updateLists(e:Event):void {
selectedItemList.dataProvider = availableItems.selectedItem ? new DataProvider([availableItems.selectedItem]) : new DataProvider();
selectedItemsList.dataProvider = new DataProvider(availableItems.selectedItems);
}
private function createComponents():void {
clearButton = new Button();
availableItems = new List();
selectedItemList = new List();
selectedItemsList = new List();
var availableItemsLabel:Label = new Label();
var selectedItemListLabel:Label = new Label();
var selectedItemsListLabel:Label = new Label();
clearButton.move(10,142);
availableItems.move(10,32);
selectedItemList.move(120,32);
selectedItemsList.move(230,32);
availableItemsLabel.move(10,10);
selectedItemListLabel.move(120,10);
selectedItemsListLabel.move(230,10);
clearButton.label = "Clear Selection"
availableItemsLabel.text = "Available Items";
selectedItemListLabel.text = "Selected Item";
selectedItemsListLabel.text = "All Selected Items";
addChild(clearButton);
addChild(availableItems);
addChild(selectedItemList);
addChild(selectedItemsList);
addChild(availableItemsLabel);
addChild(selectedItemListLabel);
addChild(selectedItemsListLabel);
}
}
}
Wed Nov 21 2018, 06:34 AM -08:00