BSReversedScrollingList

BSReversedScrollingList.as is an ActionScript 3.0 class file which defines a custom list element with reversed scrolling functionality. This class extends the BSScrollingList class, providing additional features specific for reversed list behavior.

Class Overview
Properties
Methods
Usage Example

Class Overview

BSReversedScrollingList is a subclass of BSScrollingList that modifies the positioning of list entries so that they are aligned to the bottom of the list container and scroll upwards, as opposed to the typical top-down scrolling.

Properties

Property	Type	Description
fTopY	Number	Represents the Y-coordinate of the topmost entry

Methods

Constructor

BSReversedScrollingList: Initializes a new instance of the class, setting up the default top Y-coordinate to 0.
```
public function BSReversedScrollingList() {
    super();
    this.fTopY = 0;
}
```

Accessors

topmostY (getter): Returns the Y-coordinate of the topmost entry in the list.

public function get topmostY() : Number {
    return this.fTopY;
}

Overrides

PositionEntries: Overrides the BSScrollingList’s PositionEntries method to arrange the list items starting from the bottom of the list container upwards.

override protected function PositionEntries() : * {
    var _loc4_:BSScrollingListEntry = null;
    var _loc1_:Number = 0;
    var _loc2_:Number = border.y + border.height;
    this.fTopY = _loc2_;

    var _loc3_:int = iListItemsShown - 1;
    while(_loc3_ >= 0) {
        _loc4_ = GetClipByIndex(_loc3_);
        _loc4_.y = _loc2_ - _loc1_ - _loc4_.height;
        _loc1_ = _loc1_ + (_loc4_.height + fVerticalSpacing);
        if(_loc4_.itemIndex != int.MAX_VALUE) {
            this.fTopY = _loc4_.y;
        }
        _loc3_--;
    }
}

Usage Example

The BSReversedScrollingList class is designed to be used within a user interface to display list items in a reversed scroll order. Here is a simple example of how you might create an instance of this class:

var reversedScrollingList:BSReversedScrollingList = new BSReversedScrollingList();
addChild(reversedScrollingList);

Once instantiated, you can populate the reversedScrollingList with data and display it in your UI. The list will show items aligned to the bottom and scroll in the reverse order when the user interacts with it.

Shared As3 Bsreversedscrollinglist