IconItemRenderer does not override getCurrentRendererState()

Question

I have an ItemRenderer that I've been using for a web app's List, now I need to convert that app into a Mobile App.  I am trying to use the optimized IconItemRenderer to display that same item.  My Previous Code has:
override public function set data(value:Object):void {
     super.data = value;
     value_ti.text = value.ProdValue;
     invalidateProperties();
override protected function commitProperties():void  {
     setCurrentState(getCurrentRendererState(), (mx_internal::playTransitions as Boolean));
     super.commitProperties();
override protected function getCurrentRendererState():String {
     var state:String = super.getCurrentRendererState();
     if (state == 'normal') {
          if (data.date_purchased != null) {
          state = 'sold';
          } else {
          state = 'normal';
          } else if (state == 'sold') {
          this.mouseEnabled = false;
          this.mouseChildren = false;
     return state;
With the code above, I figured I would simply change the ItemRenderer to an IconItemRenderer, and would solve the problem... though... Flash Builder gave me the Error: 1020: Method marked override must override another method. Refering to the method: getCurrentRendererState();
I figure getCurrentRendererState() does not exist in the IconItemRenderer...
Is it possible to achieve the code above through the IconItemRenderer?

Answer 1

Short answer:  You'll have to reimplement your itemRenderer.  It is unclear from your code snippet how you have implemented states.
Longer story:
The IconItemRenderer extends LabelItemRenderer which extends UIComponent. 
Mobile ItemRenderers are implemented differently than MXML ItemRenderers.  They are more like Mobile Skins than Spark components, or Spark ItemRenderers.  States are really just a fantasy; and you implement states by making changes to children, colors, or other visual elements manually in updateDisplayList(); or if you follow the MobileSkin conventions, in layoutContents() and drawBackground().
The method you're looking for is implemented in the itemRenderer class, which Mobile ItemRenderers do not implement. These are some blog posts I wrote on building Mobile itemRenderers:
https://www.flextras.com/blog/index.cfm/2011/6/17/Mobile-itemRenderers--6172011---Episode- 103--Flextras-Friday-Lunch
https://www.flextras.com/blog/index.cfm/2011/6/23/Understanding-Mobile-itemRenderers
https://www.flextras.com/blog/index.cfm/2011/6/24/Building-a-Mobile-ItemRenderer-in-Flex
I have one coming soon on implementing states in Mobile Skins; which will apply equally to itemRenderers.  I'll go over most of the content in tomorrow's Flextras Friday Lunch episode