Apache – Flex Arraycollection filter

If you are using a list can you just do the following?

<mx:List removedEffect="{dataChangeEffectSequence}"/>

Or move the effect definitions from the custom component to the same container which contains the Repeater statement and add the effect triggers to the repeated component within the Repeater statement.

The problem is that the list type components in Flex use renderer pooling (ie: when you scroll, the same renderers are reused for different items). Since I guess you init method is only called on creationComplete or sometime at the start of the life cycle of the renderer, changing the data won't change the image.

You could override set data instead

override public function set data(value:Object):void {
    super.data = value;
    if(value)
        img.load(value.imageData);
}